由於BBSCS8是由數據庫設計-bean/hbm.xml-DAO-Service-Web(作者laoer回答)這樣的創建過程,因此分析這個系統最好是先查看數據庫設計(見http://bbs.laoer.com/main-read-15-ff80808113baa8140113d201333e5274.html下載研究),而我的分析是由Service層開始引出討論的,所以你需對論壇的常用功能有所體會,知道什麼是投票貼,怎麼樣去用,還要有論壇後臺管理使用過等等.如果不知道的話,請先在www.laoer.com處或在自己電腦上本地測試以便先對其功能進行體會,請注意!!!
com.laoer.bbscs.service層下有衆多的接口:
AgreeAgainstService,它有三個方法:
AgreeAgainst saveAgreeAgainst(AgreeAgainst agreeAgainst) throws BbscsException;
AgreeAgainst findAgreeAgainstByUidPidBid(String userID,String postID,long bid);
void removeOutTime(long time)throws BbscsException;
AgreeAgainstImp爲其實現:
首先定義了一個logger,設置好agreeAgainstDAO;getAgreeAgainstDAO及setAgreeAgainstDAO;
public AgreeAgainst saveAgreeAgainst(AgreeAgainst agreeAgainst) throws BbscsException{
try{
return this.getAgreeAgainstDAO().saveAgreeAgainst(agreeAgainst);
(注:此處爲合寫,也可寫成:
agreeAgainst=this.getAgreeAgainstDAO().saveAgreeAgainst(agreeAgainst);
return agreeAgainst;我這裏囉嗦了一下,以後源代碼中會用到,別問我爲什麼~~~)
}catch(Exception ex) {
logger.error(ex);
throw new BbscsException(ex);
}
}
注意的是getAgreeAgainstDAO返回的是AgreeAgainstDAO來自於com.laoer.bbscs.dao包中的interface;
它有三個接口方法:
public AgreeAgainst saveAgreeAgainst(AgreeAgainst agreeAgainst);
public AgreeAgainst findAgreeAgainstByUidPidBid(String userID,String postID,long bid);
public void removeOutTime(long time);
而實現上注入到service方法中的是其實現類:
com.laoer.bbscs.dao.hibernate.AgreeAgainstHibernateDAO,其注入了:
<property name="sessionFactory">
<ref local="sessionFactory" />
</property>
一個sessinFacotry唯一,用於獲得可操作的session,讓我們看看其實現:
它將兩個HQL語句都重構成private static final String 了.一個是LOAD_BY_UID_PID_BID,一個是ROMOVE_OUTTIME,注意其extends HibernateDAOSupport抽象類(得到了org.springframework.orm.hibernate3.support.HibernateDAOSupport的支持哦~)這樣我們就可以不用get和set這個sessionFacotry了,另外可能使用this.getHibernateTemplate()來進行實際操作了.
saveorupdate(agreeAgainst);對於查找:
先構造一個Object[] o={postID,userID,new Long(bid)};
List list=this.getHibernateTemplate().find(LOAD_BY_UID_PID_BID,o);
if(l==null||l.isEmpty()){
return null;
}
else{
return (AgreeAgaist) l.get(0);
}
}
最後removeOutTime(final long time) {
getHibernateTemplate().execute(new HibernateCallback(){
public Object doInHibernate(Session session) throws HibernateException, SQLException{
Query query=s.createQuery(REMOVE_OUTTIME);
query.setLong(0,time);
query.executeUpdate();
return null;
}
});
};
}
我們看看hbm.xml文件和bean文件,先是bean(AgreeAgainst.java)
它有如下屬性:
private String id;
private String userID;
private String postID;
private long boardID;
private int voteType;
private long createTime;
及其set/get方法的一個構造.
看下AgreeAgainst.hbm.xml文件:
<hibernate-mapping package="com.laoer.bbscs.bean">
<class name="AgreeAgainst" table="bbscs_agreeagainst">
<id name="id" column="ID" type="string" unsaved-value="null">
<generator class="uuid"/>
</id>
<property column="UserID" length="40" name="userID" not-null="true" type="string"/>
<property column="PostID" length="60" name="postID" not-null="true" type="string"/>
<property column="BoardID" length="13" name="boardID" not-null="true" type="long"/>
<property column="VoteType" length="1" name="voteType" type="int"/>
<property column="CreateTime" name="createTime" not-null="true" type="long"/>
</class>
</hibernate-mapping>
id爲主鍵uuid算法,還要其長度的定義等等!其它不是......
看下數據庫表!!! Null Default
ID varchar(40) NO
UserID varchar(40) No
PostID varchar(40)No
BoardID bigint(20)No 0
VoteType tinyint(1)Yes 0
CreateTime bigint(20)No 0
我們來看下實現:
在帖子的支持和反對處選擇!
Hibernate: insert into bbscs_agreeagainst (UserID, PostID, BoardID, VoteType, CreateTime, ID) values (?, ?, ?, ?, ?, ?)
Hibernate: select agreeagain0_.ID as ID24_, agreeagain0_.UserID as UserID24_, agreeagain0_.PostID as PostID24_, agreeagain0_.BoardID as BoardID24_, agreeagain0_.VoteType as VoteType24_, agreeagain0_.CreateTime as CreateTime24_ from bbscs_agreeagainst agreeagain0_ where agreeagain0_.PostID=? and agreeagain0_.UserID=? and agreeagain0_.BoardID=?
數據庫中的數據:
ID:402881 e513bd c85501 13be01 e70d00 1f(32位)
UserID:4028818208ed006b0108ed020bd50001
PostID:402881e513bdc8550113bdefb43c0014
BoardID:2(第2個建的)
VoteType:1(反對)0(支持)
CreateTime:1184303802125
對比一下,就OK了
BoardAuthUserService(版塊授權的用戶)
有public BoardAuthUser saveBoardAuthUser(BoardAuthUser boardAuthUser) throws BbscsException;
punlic BoardAuthUser findBoardAuthUserById(String id);
public BoardAuthUser findBoardAuthUserByBidUid(long bid,String uid);
public BoardAuthUser findBoardAuthUserByBidUserName(long bid,String userName);
public List findBoardAuthUserByBid(long bid);
public void removeBoardAuthUser(BoardAuthUser boardAuthUser);
public void removeBoardAuthuserByBidUid(long bid,String uid) throws BbscsException;
public void removeBoardAuthUserByBidUserName(long bid,String userName) throws BbscsExeption;
同樣,imp裏BoardAuthUserServiceImp中,注入DAO
由DAO來完成對應方法的實際工作.注意:有Exception方法的寫法,例如:
public void removeBoardAuthUserByBidUserName(long bid, String userName) throws BbscsException {
try {
this.getBoardAuthUserDAO().removeBoardAuthUserByBidUserName(bid, userName);
}
catch (Exception ex) {
logger.error(ex);
throw new BbscsException(ex);
}
}
來到DAO接口層,沒有一個Exception方法哦!!!同樣實現它的HibernateDAO也沒有Ecxeption,可見,Serivce層有Exception.而DAO層沒有Exception(一般情況下),除了沒有Exception外,接口層與Serivce接口層好象.說說Exception:這裏用到的只不過是一個BbscsException而已,在專門的com.laoer.bbscs.exception包中有這個類:原來它也繼承了Exception而已,有三個重載的方法:
public BbscsException(String message) {
super(message);
}
public BbscsException(String message, Throwable cause) {
super(message, cause);
}
public BbscsException(Throwable cause) {
super(cause);
}
自定義異常類的主要作用是區分異常發生的位置，當用戶遇到異常時，根據異常名就可以知道哪裏有異常，根據異常提示信息進行修改。
看其hibernate實現:
整個源碼重構過似的,上面爲HQL語句字串常量定義:
private static final String LOAD_BY_BID_UID = "from BoardAuthUser where boardID = ? and userID = ?";
private static final String LOADS_BY_BID = "from BoardAuthUser where boardID = ? order by createTime asc";
看看方法吧:
public BoardAuthUser findBoardAuthUserById(String id) {
return (BoardAuthUser)this.getHibernateTemplate().get(BoardAuthUser.class, id);
}
這個ID明顯是對象標識!
public BoardAuthUser findBoardAuthUserByBidUserName(long bid, String userName) {
Object[] o = {new Long(bid), userName};
List l = this.getHibernateTemplate().find(LOAD_BY_BID_USERNAME, o);
if (l == null || l.isEmpty()) {
return null;
}
else {
return (BoardAuthUser) l.get(0);
}
}
public List findBoardAuthUsersByBid(long bid) {
return this.getHibernateTemplate().find(LOADS_BY_BID, new Long(bid));
}
需要注意的是Object數組中的元素必爲對象;我們來看看是怎麼刪除操作的:
public void removeBoardAuthUser(BoardAuthUser boardAuthUser) {
this.getHibernateTemplate().delete(boardAuthUser);
}
而不是一個BoradAuthUser對象,是通過以下代碼實現:
public void removeBoardAuthUserByBidUid(final long bid, final String uid) {
getHibernateTemplate().execute(new HibernateCallback() {
public Object doInHibernate(Session s) throws HibernateException, SQLException {
Query query = s.createQuery(REMOVE_BY_BID_UID);
query.setLong(1, bid);
query.setString(0, uid);
query.executeUpdate();
return null;
}
});
}
BoardPermissionService是版區(版塊)的權限對應服務;其BEAN BoardPermission如下:
private String id;
private long boardID;
private int groupID;
private List permissions = new ArrayList(); //特殊的哦~~~
再看下其hbm.xml文件:
<hibernate-mapping package="com.laoer.bbscs.bean">
<class name="BoardPermission" table="bbscs_boardpermission">
<id name="id" column="ID" type="string" unsaved-value="null">
<generator class="uuid"/>
</id>
<property column="BoardID" length="20" name="boardID" not-null="true" type="long"/>
<property column="GroupID" length="11" name="groupID" not-null="true" type="int"/>
<property column="Permissions" name="permissions" type="com.laoer.bbscs.ext.hibernate.SplitList"/>
</class>
</hibernate-mapping>
注意到:permissions對應於表的Permssions,而其type爲com.laoer.bbscs.ext.hibernate.SplitList;
讓我們看看SplitList這個類:(它在ext.hibernate包中):
[轉自網絡:
使用Hibernate自定義UserType遇到的一個問題
Hibernate自定義UserType可以使設計更爲優雅，邏輯更爲清晰。第一次使用遇到了問題。Rule表中有一個字段methods，類型爲VARCHAR(30)，not null, 允許有多個method，中間用逗號分開，之所以這麼設計是不想爲此增加一個關聯表。爲methods實現了一個自定義UserType叫MethodsList,該類對用戶隱藏了實現細節，使用戶不用處理method的連接和拆分，而使用List來操作就行了，非常直觀。在保存Rule實體的時候，Hibernate報methods字段不允許爲空，說明methods在持久化的時候還是null，DEBUG發現在調用session.saveOrUpdate()方法的時候methods不爲空，但在調用MethodsList的nullSafeSet(PreparedStatement st, Object value, int index)時顯示value的值爲null，Google了很久仍然沒有找到原因 後來發現只要把methods字段的not null屬性設爲false（即允許爲空）問題就不復存在了，很是奇怪...
據此猜測，Hibernate在應用自定義UserType(即MethodsList)之前進行字段是否爲空之類的檢查，而這時methods字段還是null，所以出現以上錯誤，把該字段改爲允許爲空之後自然就沒有問題了。個人愚見，僅供參考，有空研究一下Hibernate源碼一探究
robbin:
1、UserType不是用來做主鍵的(雖然也可以，但是那樣和複合主鍵沒有區別了，並且複合主鍵是非常不推薦的做法)
2、UserType比Component更加靈活，適用性更強，封裝的更透明。
]
其中有以下方法:assembledeepCopy(重要)disassmbleequals(重要)hashCodeisMutable ullSafeGet eplace eturnedClasssqlTypes等方法需要實現(不一定)!
rs--->Object
public Object nullSafeGet(ResultSet resultSet, String[] stringArray, Object object) throws HibernateException,
SQLException {
String value = (String) Hibernate.STRING.nullSafeGet(resultSet, stringArray[0]);
if (value != null) {
return parse(value);
} else {
return new ArrayList();
}
}
用了parse方法:
private List parse(String value) {
String[] strs = StringUtils.split(value, SPLITTER);
List set = new ArrayList();
for (int i = 0; i < strs.length; i++) {
if (!StringUtils.isBlank(strs[i])) {
set.add(Long.valueOf(strs[i]));
// System.out.println(strs[i]);
// set.add(new Long(Long.parseLong(strs[i])));
}
}
return set;
}
object--->rs
public void nullSafeSet(PreparedStatement preparedStatement, Object object, int _int) throws HibernateException,
SQLException {
if (object != null) {
String str = assemble((List) object);
Hibernate.STRING.nullSafeSet(preparedStatement, str, _int);
} else {
Hibernate.STRING.nullSafeSet(preparedStatement, "", _int);
}
}
用了assemble方法:
private String assemble(List set) {
StringBuffer sb = new StringBuffer();
Iterator it = set.iterator();
while (it.hasNext()) {
sb.append(it.next());
sb.append(SPLITTER);
}
String fs = sb.toString();
if (fs != null && fs.length() > 0 && fs.endsWith(SPLITTER)) {
fs = fs.substring(0, fs.length() - 1);
}
return fs;
}
附參考資料:http://blog.csdn.net/ckangtai/archive/2007/05/23/1622396.aspx
好,看完這個後,我們進入到服務內容:
public BoardPermission saveBoardPermission(BoardPermission bp) throws BbscsException;
public BoardPermission updateBoardPermission(BoardPermission bp) throws BbscsException;
public BoardPermission findBoardPermissionByID(String id);
public BoardPermission findBoardPermissionByBidGid(long bid, int gid);
public List findBoardPermissionsByBid(long bid);
public List findBoardPermissionsByGid(int gid);
public void removeBoardPermissionsByBid(long bid) throws BbscsException;
public void removeBoardPermissionsByGid(int gid) throws BbscsException;
實際是由注入的boardPermissionDAO其實現類完成的.
注意這裏引入了 private Cache userPermissionCache;這個緩存類!
我們從applicationContext.xml看看是什麼東東:
<bean id="userPermissionCache"
class="com.laoer.bbscs.service.imp.OsCacheImp">
<constructor-arg>
<value>${cacheup.config}</value>
</constructor-arg>
</bean>
哦,原來是另外一個服務,${cacheup.config}指的是cacheup.config=oscache_up.properties;
在classes下有許多配置文件,是用不同的配置文件是爲了方便集羣，以區分是不同的緩存。
我們從com.laoer.bbscs.serivce.Cache接口看起,它提供瞭如下方法:
public void add(Object key,Object value);
public Object get(Object key);
public void remove(Object key);
public void removeAll();
再看imp:
由於spring中的bean帶construtctor-arg:
將調用構造方法:
public OsCacheImp(String profile) {
Properties properties = new Properties();
ClassPathResource classPathResource = new ClassPathResource(profile);
//這個類標識從classpath獲得的資源
try {
logger.info("Init Cache...");
properties.load(classPathResource.getInputStream());//使用Properties的load(InputStream inStream) 來讀取配置文件的時候
admin = new GeneralCacheAdministrator(properties);
} catch (Exception ex) {
logger.error(ex);
admin = new GeneralCacheAdministrator();
}
}
注意,這個admin對象來自OSCache包,用於管理Cache內容吧.另外,我們看看其對Cache的實現:
public void add(Object key, Object value) {
logger.debug("Add into cache [Key:" + key + "]");
this.admin.putInCache(String.valueOf(key), value);
}
public Object get(Object key) {
try {
logger.debug("Get from cache [Key:" + key + "]");
return this.admin.getFromCache(String.valueOf(key));
} catch (NeedsRefreshException ex) {
logger.debug("Object not in cache, return null");
this.admin.cancelUpdate(String.valueOf(key));
return null;
}
}
public void remove(Object key) {
logger.debug("Remove from cache [Key:" + key + "]");
this.admin.flushEntry(key.toString());
}
public void removeAll() {
logger.debug("Remove all");
this.admin.flushAll();
}
這樣就可以對緩存內容進行控制操作了(就用這幾個方法)!讓我們回到BoardPermissionSerivceImp類中:
注入了DAO和Cache(userPermissionCache)後,進行方法實現時,主要還是DAO去做,不過在saveBoardPermission和updateBoardPermission,還有各種remove方法中還用了this.clearPermissionCache();(除了find),讓我們來看看它的代碼吧:
private void clearPermissionCache() {
if (Constant.USE_PERMISSION_CACHE) {
//public static final boolean USE_PERMISSION_CACHE = true;
this.getUserPermissionCache().removeAll();//調用Cache中的方法哦!removeALL看上面this.admin.flushAll();!
}
}
555555,這個服務類也了Cache服務(與別的服務結合了),下面是DAO實現:
private static final String LOAD_BY_BID_GID ="from BoardPermission where boardID = ? and groupID = ?";
private static final String LOADS_BY_BID = "from BoardPermission where boardID = ?";
private static final String LOADS_BY_GID = "from BoardPermission where groupID = ?";
private static final String REMOVE_BY_BID = "delete from BoardPermission where boardID = ?";
private static final String REMOVE_BY_GID = "delete from BoardPermission where groupID = ?";
我們看update:
public BoardPermission updateBoardPermission(BoardPermission bp) {
//System.out.println("update bp");
this.getHibernateTemplate().update(bp);
return bp;
}
再看:
/**
* 根據GroupID刪除BoardPermission對象
*
* @param gid int
* @todo Implement this com.laoer.bbscs.dao.BoardPermissionDAO method
*/
public void removeBoardPermissionsByGid(final int gid) {
getHibernateTemplate().execute(new HibernateCallback() {
public Object doInHibernate(Session s) throws HibernateException, SQLException {
Query query = s.createQuery(REMOVE_BY_GID);
query.setLong(0, gid);
query.executeUpdate();
return null;
}
});
}
接下來,是BoardSaveService:
先看bean吧,它實現了implements Serializable...,加入private static final long serialVersionUID = 5390014211916049604L;它有三個屬性:
private String id;
private String userID;
private long boardID;
[
Java的JavaBeans. Bean的狀態信息通常是在設計時配置的。Bean的狀態信息必須被存起來，以便當程序運行時能恢復這些狀態信息。這也需要serializaiton機制。
總之如果在網絡的環境下做類傳輸，應該還是implements Serializable。
]
再看其hbm.xml:
<hibernate-mapping package="com.laoer.bbscs.bean">
<class name="BoardSave" table="bbscs_boardsave">
<id name="id" column="ID" type="string" unsaved-value="null">
<generator class="uuid"/>
</id>
<property column="UserID" length="40" name="userID" not-null="true" type="string"/>
<property column="BoardID" length="13" name="boardID" not-null="true" type="long"/>
</class>
</hibernate-mapping>
從這樣便知是用於收藏版區的對象模型啊!那接下來看其接口中的方法:
public BoardSave saveBoardSave(BoardSave boardSave) throws BbscsException;
public BoardSave findBoardSaveById(String id);
public BoardSave findBoardSaveByUidBid(String userId, long bid);
public List findBoardSavesByUid(String userId);
public List findBoardSaveBidsByUid(String userId);//找Bid的List
public void removeBoardSave(BoardSave boardSave) throws BbscsException;
public void removeBoardSaveByUidBid(String userId, long bid) throws BbscsException;
public void removeBoardSaveByBid(long bid) throws BbscsException;
public void removeBoardSaveByBidsUid(String userId, List ids) throws BbscsException;
對於imp調用dao-->daoimp我們直接進入dao的imp中:
其中的常量定義如下:
private static final String LOAD_BY_UID_BID = "from BoardSave where userID = ? and boardID = ?";
private static final String LOADS_BY_USERID = "from BoardSave where userID = ?";
private static final String LOADS_BOARDID_BY_USERID = "select boardID from BoardSave where userID = ?";//很特別哦!(其實也沒什麼,相對而已)
private static final String REMOVE_BY_UID_BID = "delete from BoardSave where userID = ? and boardID = ?";
private static final String REMOVE_BY_BID = "delete from BoardSave where boardID = ?";
private static final String REMOVE_IN_IDS_BY_UID =
"delete from BoardSave where userID = :userID and boardID in (:ids)";
我們來看方法實現吧.
public BoardSave saveBoardSave(BoardSave boardSave) {
this.getHibernateTemplate().saveOrUpdate(boardSave);
return boardSave;
}
可用於保存,也可以用於更新!
public List findBoardSaveBidsByUid(String userId) {
return this.getHibernateTemplate().find(LOADS_BOARDID_BY_USERID, userId);
//一個參數
public void removeBoardSaveByBidsUid(final String userId, final List ids) {
getHibernateTemplate().execute(new HibernateCallback() {
public Object doInHibernate(Session s) throws HibernateException, SQLException {
Query query = s.createQuery(REMOVE_IN_IDS_BY_UID);
query.setString("userID", userId);
query.setParameterList("ids", ids);
query.executeUpdate();
return null;
}
});
}
OK!
接下來,是BoardService,先看其相關的Bean!它也實現了可序列化操作...它的屬性特別多..
很關鍵哦!
private Long id;//主鍵
private long parentID;//父級版區ID
private List parentIDs;//所有父級版區ID列表
private List childIDs;
private String boardName;//版區名稱
private String explains;(說明)
private String bulletin;(公告)
private String boardPic;//圖片
private int useStat;(使用狀態)
private int orders;//序
private int needPasswd;//是否需要密碼訪問
private String passwd;//訪問密碼
private int level;---->數據庫中的BoardLevel//級別
private int boardType;(類型1,2,3)//版區類型
private int allowHTML;//HTML是否支持
private int allowUBB;//UBB...
private int auditPost; (帖子是否需要審覈)
private int auditAttach;//附件是否需要審覈
private int addUserPostNum;//是否增加用戶發貼數
private int isHidden;
private int isAuth;//是否需要論證用戶才能訪問
private long mainPostNum;//主貼數
private long postNum;//帖子數量
private Map boardMaster=new HashMap();
private Set boardTag=new HashSet();
我們看看Board.hbm.xml,錯了,我們應該看看applicationCotext.xml中的內容是不是這個,經查看:
<value>com/laoer/bbscs/bean/Board-${datasource.type}.hbm.xml</value>,我用mysql當然是Board-mysql.hbm.xml,其內容主要如下:
<hibernate-mapping package="com.laoer.bbscs.bean">
<class name="Board" table="bbscs_board">
<id name="id" column="ID" type="long" unsaved-value="null">
<generator class="identity"/> //long類型的identity!
</id>
<property column="ParentID" length="20" name="parentID" not-null="true" type="long"/>
<property column="ParentIDs" name="parentIDs" type="com.laoer.bbscs.ext.hibernate.SplitList"/>//parentIDs有用了userType
<property column="ChildIDs" name="childIDs" type="com.laoer.bbscs.ext.hibernate.SplitList"/>
<property column="BoardName" length="60" name="boardName" not-null="true" type="string"/>
<property column="Explains" name="explains" type="text"/>//text類型
<property column="Bulletin" name="bulletin" type="text"/>
<property column="BoardPic" length="200" name="boardPic" type="string"/>
<property column="UseStat" length="1" name="useStat" type="int"/>//一個開關的功能
<property column="Orders" length="11" name="orders" type="int"/>//論壇排序
<property column="NeedPasswd" length="1" name="needPasswd" type="int"/>//開關
<property column="Passwd" length="100" name="passwd" type="string"/>
<property column="BoardLevel" length="11" name="level" type="int"/>
<property column="BoardType" length="2" name="boardType" type="int"/>
<property column="AllowHTML" length="1" name="allowHTML" type="int"/>
<property column="AllowUBB" length="1" name="allowUBB" type="int"/>
<property column="AuditPost" length="1" name="auditPost" type="int"/>
<property column="AuditAttach" length="1" name="auditAttach" type="int"/>//不懂???
<property column="AddUserPostNum" length="1" name="addUserPostNum" type="int"/>//應該是一個開關吧
<property column="IsHidden" length="1" name="isHidden" type="int"/>
<property column="IsAuth" length="1" name="isAuth" type="int"/>
<property column="MainPostNum" length="11" name="mainPostNum" type="long"/>
<property column="PostNum" length="11" name="postNum" type="long"/>
//關鍵點,boardMaster和boardTag均爲one-to-many類型!
<map name="boardMaster" inverse="true" cascade="all-delete-orphan" lazy="false">
<key column="boardID"/>
<map-key column="UserName" type="string"/>
<one-to-many class="BoardMaster"/>
</map>
<set name="boardTag" inverse="true" cascade="all-delete-orphan" lazy="false" order-by="orders asc">
<key column="boardID"/>
<one-to-many class="BoardTag"/>
</set>
</class>
</hibernate-mapping>
看完這些後,我們就知道這個bean是用於版區操作了,讓我們看看方法:(先看接口BoardService)
public Board saveBoard(Board board) throws BbscsException;//保存或更新Board對象
public Board createBoard(Board board) throws BbscsException;
public Board updateBoard(Board board, long oldParentID) throws BbscsException;
public Board getBoardByID(long id);
public List findBoardsByParentID(long pid, int useStat, int hidden, int orderType);
public List findBoardsAllTree(long pid, List topList, int useStat, int hidden, int orderType);
public int getNextOrder(long pid);
public int getPostSumNum(int mainorall, int useStat, int hidden);
public void removeBoard(Board board) throws BbscsException;
public Map[] getBoardPermission(long bid, int groupID);
public Map[] getBoardMasterPermission(int roleID);
public boolean isBoardMaster(Board board, String userName);
public List findBoardsInIDs(List ids);
public void removeBoardTag(Board board, String tagID) throws BbscsException;
public List getBoardIDs(List boards);
public void saveBoardsPostNumCount() throws BbscsException;
這裏方法有16個左右,注意我們進行除了查詢後的其它CURD操作都可能會產生異常.對於具體方法我們需要去了解其實現才能理清其作用.看下服務實現層:(注BoardServiceCacheImp爲其實現類,可能是加入了許多緩存的原因吧):
首先仍是logger(這裏發現了原來其實在service層和dao層只有這裏需要logger,其它地方都沒,對於異常也只有service接口和實現層有BbscsException這個異常處理,而對於DAO層的異常則已經由HibernateTemplate完全拋出了,如:
public void saveOrUpdate(final Object entity)
throws DataAccessException
{
execute(new HibernateCallback() {
public Object doInHibernate(Session session)
throws HibernateException
{
checkWriteOperationAllowed(session);
session.saveOrUpdate(entity);
return null;
}
}
, true);
}
)
我們回到正題上,除了logger,還有boardDAO(當然要了)
,userGroupDAO,boardPermissionDAO(講過的),permissionDAO,roleDAO,forumDAO,forumHistoryDAO,還有一些Cache服務:sysListObjCache,boardCache,userPermissionCache(以前用過),還有一個額外的服務類:sysStatService;對他們進行getter/setter方法一下...
我們分析下sysStatService:(applicationContext.xml) 系統統計服務
<bean id="sysStatService"
class="com.laoer.bbscs.service.imp.SysStatServiceImp"
scope="prototype"> //每次請求都產生一個對象
<property name="userConfig">
<ref bean="userConfig" />
</property>
</bean>
userConfig指:
<bean id="userConfig"
class="com.laoer.bbscs.service.config.UserConfig">
<property name="safePath">
<value>${bbscs.safePath}</value> //安全目錄我的指的是D:/safe/
</property>
</bean>
UserConfig是一個config配置服務,在服務類中首先注入了safePath 這個String對象,它向外提供了String getUserFilePath(String userID)[簡單,最終得到一個用戶文件Path,見實際目錄就可知道其原理]和String getIndexPath()和File getIndexFilePath()以及boolean indexExist()四個對外公共方法.詳細看方法實現:
public String getIndexPath() { //好象沒用到過
StringBuffer sb = new StringBuffer();
sb.append(this.getSafePath());
sb.append("index/");
return sb.toString();
}
public File getIndexFilePath() {
File indexFilePath = new File(this.getIndexPath());//構造一個File對象
if (!indexFilePath.exists()) {
indexFilePath.mkdirs();
}
return indexFilePath;
}
public boolean indexExist() {
File file = new File(this.getIndexPath() + "segments");
return file.exists();//使用文件是否存在的方法作判斷!
}
可見config服務類較簡單(沒用到logger)!提供一個常用服務!而com.laoer.bbscs.service.imp.SysStatService是怎麼用到它的呢?它繼承了抽象類SysStatService,在這個抽象類中,有一個東西是私有的:
private long onlineNum = 0;
private long appearTime = 0; 發表時間long類型
private String appearTimeStr = "";
private long allUserNum = 0;
private String lastRegUser = "";
private long postMainNum = 0;
private long postNum = 0;
(這個東西和safe文件夾下的sysstat.properties好像啊,看看先:
#sysstat.properties
#Mon Jul 16 11:35:16 CST 2007 //appearTimeStr ??
onlineNum=2
postMainNum=1
allUserNum=2
appearTime=963209825828
postNum=1
lastRegUser=sgwood
)下面有其get/set方法,子類可以繼承哦!當然,還有一個子類需實現的方法:
public abstract void load();
public abstract void saveOnline(long nowonlinenum);//在線數
public abstract void saveAllUserNum(long allusernum, String lastreguser);//所有用戶數和最後註冊用戶名
public abstract void savePostNum(long main, long all); //存入主題貼和總數
接着我們看下SysStatServiceImp.java文件好了:它加入了logger和UserConfig對象先,看下面的load方法:
public void load() {
Properties prop = new Properties();
File f = new File(this.getUserConfig().getSafePath() + "sysstat.properties"); //getSafePath()當然會暴露出來!
if (f.exists()) {
try {
FileInputStream fis = new FileInputStream(f);
prop.load(fis);
/**只需傳遞這個文件的 InputStream 給 load() 方法，就會將每一個鍵-值對添加到 Properties 實例中。然後用 list() 列出所有屬性或者用 getProperty() 獲取單獨的屬性。
list() 方法的輸出中鍵-值對的順序與它們在輸入文件中的順序不一樣。 Properties 類在一個散列表（hashtable，事實上是一個 Hashtable 子類）中儲存一組鍵-值對，所以不能保證順序。
*/
this.setOnlineNum(Long.parseLong(prop.getProperty("onlineNum", "0").trim()));//繼承過來的!!!
this.setAppearTime(Long.parseLong(prop.getProperty("appearTime", "0").trim()));
this.setAllUserNum(Long.parseLong(prop.getProperty("allUserNum", "0").trim()));
this.setLastRegUser(prop.getProperty("lastRegUser", ""));
this.setPostMainNum(Long.parseLong(prop.getProperty("postMainNum", "0").trim()));
this.setPostNum(Long.parseLong(prop.getProperty("postNum", "0").trim()));
this.setAppearTimeStr(Util.formatDateTime(new Date(this.getAppearTime())));//寫時間用
fis.close();
} catch (NumberFormatException ex) {
logger.error(ex);
} catch (FileNotFoundException ex) {
logger.error(ex);
} catch (IOException ex) {
logger.error(ex);
}
} else {
save(); //文件不存在時!內部private方法哦
}
}
private void save() {
String path = this.getUserConfig().getSafePath() + "sysstat.properties";
Properties prop = new Properties();
prop.setProperty("onlineNum", String.valueOf(this.getOnlineNum()));
prop.setProperty("appearTime", String.valueOf(this.getAppearTime()));
prop.setProperty("allUserNum", String.valueOf(this.getAllUserNum()));
prop.setProperty("lastRegUser", this.getLastRegUser());
prop.setProperty("postNum", String.valueOf(this.getPostNum()));
prop.setProperty("postMainNum", String.valueOf(this.getPostMainNum()));
try {
FileOutputStream fos = new FileOutputStream(path);//寫入新文件中
prop.store(fos, "sysstat.properties");
fos.close();
} catch (FileNotFoundException ex) {
logger.error(ex);
} catch (IOException ex) {
logger.error(ex);
}
}
我們看下對抽象類的實現吧:(先load一下資源文件,再set相關的key值,最後用私有的save一下)
public void saveAllUserNum(long allusernum, String lastreguser) {
this.load();
this.setAllUserNum(allusernum);
this.setLastRegUser(lastreguser);
this.save();
}
public void saveOnline(long nowonlinenum) {
this.load();
if (nowonlinenum > this.getOnlineNum()) { //好象不太對,不然只有多沒有少!
long atime = System.currentTimeMillis();
this.setOnlineNum(nowonlinenum);
this.setAppearTime(atime);
this.setAppearTimeStr(Util.formatDateTime(new Date(atime)));
this.save();
}
}
public void savePostNum(long main, long all) {
this.load();
this.setPostMainNum(main);
this.setPostNum(all);
this.save();
}
OK!終於可以回到BoardServiceCachImp實現類中了,繞了好大一個彎!由於還有許多東西沒用過,只能推測一下其用法了哦~~~還是先看幾個,createBoard(Board board)先:
@SuppressWarnings("unchecked")
public Board createBoard(Board board) throws BbscsException {
try {
Board pboard = this.getBoardDAO().getBoardByID(board.getParentID()); // 取得父級版區
if (pboard != null) { // 父級版區存在
List pboards = new ArrayList();
pboards.addAll(pboard.getParentIDs());//父的祖先
pboards.add(pboard.getId());//父
/** addAll(Collection c)
add(int index,Elelemt e)
注意parentIDs和childIDs均爲List是由自定義userType的
public Class returnedClass() {
return List.class;
}
決定返回是List類型的!
*/
board.setParentIDs(pboards); // 設置父級版區列表字段
board.setLevel(pboard.getLevel() + 1); // 設置級別,在父級別上+1
}
board = this.getBoardDAO().saveBoard(board);//這裏的其它參數由添加時決定,不需要改變,或由其它因素相關!由DAO完成實質的工作
if (pboard != null) {
List pcboards = this.getBoardDAO().findBoardsByParentID(board.getParentID(), 1, -1,
Constant.FIND_BOARDS_BY_ORDER);
/** 取得父級半區的所有子版區列表pcboard,1是useStat,-1是hidden,FIND_BOARD_BY_ORDER=0另外有,
public static final int FIND_BOARDS_BY_MAINPOSTNUM = 1;
public static final int FIND_BOARDS_BY_POSTNUM = 2;
/*
List cids = this.getBoardIDs(pcboards);//得到子版ID的List
/**
public List getBoardIDs(List boards) {
List<Long> l = new ArrayList<Long>();
for (int i = 0; i < boards.size(); i++) {
Board b = (Board) boards.get(i);
l.add(b.getId());
}
return l;
}
*/
pboard.setChildIDs(cids); // 設置父級版區的所有子版區列表字段
this.getBoardDAO().saveBoard(pboard);//更新父信息
this.getBoardCache().remove(pboard.getId());
/**從Board Cache中清除, 我們看下BoardCache的bean定義:
<bean id="boardCache"
class="com.laoer.bbscs.service.imp.OsCacheImp"> 仍然是這個,以前講過!
<constructor-arg>
<value>${cache.config}</value> cache.config=oscache.properties
</constructor-arg>
</bean>
public void remove(Object key) {
logger.debug("Remove from cache [Key:" + key + "]");
this.admin.flushEntry(key.toString());
}
從oscache.properties配置處的Cache內容中去掉key=pboard.getID()的對象,讓OSCache自動緩存內容吧!
*/
}
this.clearBoradListSysListCache(board.getParentID());
/**它其實是一私有方法哦!需要注意的是實質用了SysListOjbCache,它其中的對象標識竟是[][][][][],5555,可能有些對象後三者可不用:
private void clearBoradListSysListCache(long pid) {
String[] useStats = { "-1", "0", "1" };
String[] hiddens = { "-1", "0", "1" };
String[] orderTypes = { "0", "1", "2" };
for (int i = 0; i < useStats.length; i++) {
for (int j = 0; j < hiddens.length; j++) {
for (int x = 0; x < orderTypes.length; x++) {
this.getSysListObjCache().remove(
"[B][" + pid + "][" + useStats[i] + "][" + hiddens[j] + "][" + orderTypes[x] + "]");
}
}
}
}
*/
// 爲版區增加用戶組版區權限
List gl = this.getUserGroupDAO().findUserGroupsAll();
/**取得用戶組列表
public List findUserGroupsAll() {
return this.getHibernateTemplate().find(LOADS_ALL);
}
private static final String LOADS_ALL = "from UserGroup order by id";
原始數據爲6個記錄的表(見數據庫),id1---6,以GroupName區分之,TypeID表示代表類型，默認是系統類型的，不能刪除，用戶自己建的就是另外一個類型了。
*/
BoardPermission bp;
for (int i = 0; i < gl.size(); i++) {
UserGroup ug = (UserGroup) gl.get(i);
bp = new BoardPermission();
bp.setBoardID(board.getId().longValue());//冗餘字段
bp.setGroupID(ug.getId().intValue());//冗餘字段
switch (ug.getId().intValue()) {
case 1:
bp.setPermissions(Constant.BOARD_PERMISSION_GROUP_LIST_1);
/**<property column="Permissions" name="permissions" type="com.laoer.bbscs.ext.hibernate.SplitList"/>
break;
case 2:
bp.setPermissions(Constant.BOARD_PERMISSION_GROUP_LIST_2);
break;
case 3:
bp.setPermissions(Constant.BOARD_PERMISSION_GROUP_LIST_3);
break;
case 4:
bp.setPermissions(Constant.BOARD_PERMISSION_GROUP_LIST_4);
break;
case 5:
bp.setPermissions(Constant.BOARD_PERMISSION_GROUP_LIST_5);
break;
case 6:
bp.setPermissions(Constant.BOARD_PERMISSION_GROUP_LIST_6);
break;
default:
bp.setPermissions(Constant.BOARD_PERMISSION_GROUP_LIST_1);
}
this.getBoardPermissionDAO().saveBoardPermission(bp);
/**而在Constant.java中有段static段:
for (int i = 0; i < BOARD_PERMISSION_GROUP_1.length; i++) {
BOARD_PERMISSION_GROUP_LIST_1.add(new Long(BOARD_PERMISSION_GROUP_1[i]));
}
for (int i = 0; i < BOARD_PERMISSION_GROUP_2.length; i++) {
BOARD_PERMISSION_GROUP_LIST_2.add(new Long(BOARD_PERMISSION_GROUP_2[i]));
}
for (int i = 0; i < BOARD_PERMISSION_GROUP_3.length; i++) {
BOARD_PERMISSION_GROUP_LIST_3.add(new Long(BOARD_PERMISSION_GROUP_3[i]));
}
for (int i = 0; i < BOARD_PERMISSION_GROUP_4.length; i++) {
BOARD_PERMISSION_GROUP_LIST_4.add(new Long(BOARD_PERMISSION_GROUP_4[i]));
}
for (int i = 0; i < BOARD_PERMISSION_GROUP_5.length; i++) {
BOARD_PERMISSION_GROUP_LIST_5.add(new Long(BOARD_PERMISSION_GROUP_5[i]));
}
*/
}
return board;
} catch (Exception e) {
logger.error(e);
throw new BbscsException(e);
}
}
從創建中可以知道,它調用了兩個cache(sysListObjCache和boardCache,對父級和本級的相關項進行更新(或產生),再保存.還有就是對此分版區(論壇)的用戶權限的寫入.總的來說,原則上,要數據服務(保存和查找)從DAO層來,要Cache從服務層來,要常用服務也從服務層來(因爲它不參與DAO工作)
接下來,我們繼續看findBoardAllTree:
@SuppressWarnings("unchecked")//類型安全問題
public List findBoardsAllTree(long pid, List topList, int useStat, int hidden, int orderType) {
List l = this.getBoardDAO().findBoardsByParentID(pid, useStat, hidden, orderType);//這個pid指的是當前論壇,與前面的pid不一樣哦
for (int i = 0; i < l.size(); i++) {
Board b = (Board) l.get(i);
topList.add(b);
this.findBoardsAllTree(b.getId().longValue(), topList, useStat, hidden, orderType);//由於topList是一個引用類型,可遞歸得到All子論壇及子論壇的子論壇...
}
return topList;
}
而這個服務類的findBoardByParentID(非DAO)它首先是查詢SysListObjCache裏面有沒有,若沒有的話再由DAO從數據庫中找,且放入到SysListObjCache中,用了add方法,需注意的是其命名有點怪哦!
public List findBoardsByParentID(long pid, int useStat, int hidden, int orderType) {
List l = (List) this.getSysListObjCache().get(
"[B][" + pid + "][" + useStat + "][" + hidden + "][" + orderType + "]");
if (l == null) {
// l = this.getBoardDAO().findBoardsByParentID(pid, useStat, hidden,
// orderType);
l = this.getBoardDAO().findBoardIdsByParentID(pid, useStat, hidden, orderType);
this.getSysListObjCache().add("[B][" + pid + "][" + useStat + "][" + hidden + "][" + orderType + "]", l);
}
List<Board> bl = new ArrayList<Board>();
if (l != null && !l.isEmpty()) {
for (int i = 0; i < l.size(); i++) {
// Board b = this.getBoardByID(((Long)l.get(i)).longValue());
Board b = this.getBoardByID((Long) l.get(i));
if (b != null) {
bl.add(b);
}
}
}
由於Cache中不一定是Borad對象了,由於add進的是list,便由List<Board>類型的bl重新加載一次爲Board的List.findBoardInIDs根據IDs一個取一個,邊放入到l中!
public List findBoardsInIDs(List ids) {
List<Board> l = new ArrayList<Board>();
if (ids != null && !ids.isEmpty()) {
for (int i = 0; i < ids.size(); i++) {
// Board b = this.getBoardByID(((Long) ids.get(i)).longValue());
Board b = this.getBoardByID((Long) ids.get(i));
if (b != null) {
l.add(b);
}
}
}
return l;
}
return bl;
}
與其相反的方法是:
public List getBoardIDs(List boards) {
List<Long> l = new ArrayList<Long>();
for (int i = 0; i < boards.size(); i++) {
Board b = (Board) boards.get(i);
l.add(b.getId());
}
return l;
}
注意以上都有this.getBoardByID(),它是帶Cache的哦!從BoardCache中取!
public Board getBoardByID(long id) {
Board board = (Board) this.getBoardCache().get(new Long(id));
if (board == null) {
board = this.getBoardDAO().getBoardByID(id);
if (board != null) {
this.getBoardCache().add(board.getId(), board);
}
}
return board;
}
另外,對於Permission,有以下幾個方法:
public Map[] getBoardMasterPermission(int roleID)
public Map[] getBoardPermission(long bid, int groupID)
private Map[] getPermissionMaps(long bid, int groupID)
private Map[] getPermissionMaps(int roleID)
前面2個是公開的方法,後2個是被調用的..
public Map[] getBoardMasterPermission(int roleID) {
if (Constant.USE_PERMISSION_CACHE) {
Map[] mapPermission = (Map[]) this.getUserPermissionCache().get("R_" + String.valueOf(roleID));
if (mapPermission == null) {
mapPermission = this.getPermissionMaps(roleID);
this.getUserPermissionCache().add("R_" + String.valueOf(roleID), mapPermission);
}
return mapPermission;
} else {
return this.getPermissionMaps(roleID);
}
}
private Map[] getPermissionMaps(int roleID) {
Map[] mapPermission = { new HashMap(), new HashMap() }; //MAP數組,555
Role role = this.getRoleDAO().findRoleByID(roleID);//得到id爲roleID的角色對象
List permissions = role.getPermissions(); // 取得角色的權限ID列表(ID的List)
if (permissions != null && !permissions.isEmpty()) {
List permissionList = this.getPermissionDAO().findPermissionnIDs(permissions); // 取得權限列表Permission對象的List
for (int i = 0; i < permissionList.size(); i++) {
Permission permission = (Permission) permissionList.get(i);
if (permission.getTypeID() == 2) {
mapPermission[0].put(permission.getResource() + "," + permission.getAction(), permission);
}
if (permission.getTypeID() == 3) {
mapPermission[1].put(permission.getId(), permission);
} //這段需理解!!!
}
}
return mapPermission;
}
另外,除了版主外,還有版區權限:
public Map[] getBoardPermission(long bid, int groupID) {
if (Constant.USE_PERMISSION_CACHE) {
Map[] mapPermission = (Map[]) this.getUserPermissionCache().get(
"BG_" + String.valueOf(bid) + "_" + String.valueOf(groupID));
if (mapPermission == null) {
mapPermission = this.getPermissionMaps(bid, groupID);
this.getUserPermissionCache().add("BG_" + String.valueOf(bid) + "_" + String.valueOf(groupID),
mapPermission);
}
return mapPermission;
} else {
return this.getPermissionMaps(bid, groupID);
}
}
同樣,它用了類似的重載方法:
private Map[] getPermissionMaps(long bid, int groupID) {
Map[] boardPermission = { new HashMap(), new HashMap() };
BoardPermission bp = this.getBoardPermissionDAO().findBoardPermissionByBidGid(bid, groupID);//用的是BoardPermissionDAO
List permissions = bp.getPermissions(); // 取得權限ID列表
if (permissions != null && !permissions.isEmpty()) {
List permissionList = this.getPermissionDAO().findPermissionnIDs(permissions); // 取得權限列表Permission對象的List
for (int i = 0; i < permissionList.size(); i++) {
Permission permission = (Permission) permissionList.get(i);
if (permission.getTypeID() == 2) {
boardPermission[0].put(permission.getResource() + "," + permission.getAction(), permission);
}
if (permission.getTypeID() == 3) {
boardPermission[1].put(permission.getId(), permission);
}
}
}
return boardPermission;
}
接下來,看看getNextOrder(long pid),getPostSumNum(int mainorall,int usStat,int hidden),它們完全由DAO去查詢數據庫!我們看下remove系列:
public void removeBoard(Board board) throws BbscsException {
try {
Long lbid = board.getId();
long pbid = board.getParentID();
Board pboard = this.getBoardDAO().getBoardByID(board.getParentID()); // 取得父版區
this.getBoardDAO().removeBoard(board); // 刪除版區
this.getBoardPermissionDAO().removeBoardPermissionsByBid(board.getId().longValue());//刪除對應版區的權限
if (pboard != null) { // 父版區存在,對ChildIDs字段做矯正
List pcboards = this.getBoardDAO().findBoardsByParentID(pboard.getId().longValue(), 1, 0,
Constant.FIND_BOARDS_BY_ORDER);//pcboards是子對象
List cids = this.getBoardIDs(pcboards);//cids是子IDs
pboard.setChildIDs(cids);
this.getBoardDAO().saveBoard(pboard);
}
this.getBoardCache().remove(lbid);
this.clearBoradListSysListCache(pbid);
//清理本id的BoardCache,清理父id的SysListObjectCache,而userPermission中出現過去2類:R_ BG_的..都不好清理!
} catch (Exception ex) {
logger.error(ex);
throw new BbscsException(ex);
}
}
public void removeBoardTag(Board board, String tagID) throws BbscsException {
BoardTag bt = null;
Iterator it = board.getBoardTag().iterator(); //由Iterator遍歷查找,找到後remove掉
while (it.hasNext()) {
bt = (BoardTag) it.next();
if (bt.getId().equals(tagID)) {
board.getBoardTag().remove(bt);
break;
}
}
try {
board = this.getBoardDAO().saveBoard(board); //保存修改結果
this.getForumDAO().updateForumsTag(tagID, "0", "");//帖子TAG
this.getForumHistoryDAO().updateForumsTag(tagID, "0", "");//歷史貼TAG
this.getBoardCache().remove(board.getId());//BoardCache清理一次
} catch (Exception e) {
logger.error(e);
throw new BbscsException(e);
}
}
最後再看兩個方法:
public Board updateBoard(Board board, long oldParentID) throws BbscsException {
try {
Board pboard = this.getBoardDAO().getBoardByID(board.getParentID());
if (pboard != null) {
List pboards = new ArrayList();
pboards.addAll(pboard.getParentIDs());
pboards.add(pboard.getId());
board.setParentIDs(pboards);
board.setLevel(pboard.getLevel() + 1);
} else {
board.setParentIDs(new ArrayList());//hbm.xml決定需List對象
board.setLevel(0);
}
/**
數據庫中的數據id /parentID/ParentIDs/ChildIDs
1/ 0/ /2,3
2/ 1/ 1/
3/ 1/ 1/
*/
board = this.getBoardDAO().saveBoard(board);
if (pboard != null) {
List pcboards = this.getBoardDAO().findBoardsByParentID(board.getParentID(), 1, -1,
Constant.FIND_BOARDS_BY_ORDER);
List cids = this.getBoardIDs(pcboards);
pboard.setChildIDs(cids);
this.getBoardDAO().saveBoard(pboard);
this.getBoardCache().remove(pboard.getId());
}
this.clearBoradListSysListCache(board.getParentID());
if (oldParentID != -1) { // 父級版區改變。修正父級版區數據 關鍵點,由傳入的oldParentID決定是否改變ParentID
Board pboardOld = this.getBoardDAO().getBoardByID(oldParentID);
if (pboardOld != null) {
List pcboards = this.getBoardDAO().findBoardsByParentID(pboardOld.getId().longValue(), 1, -1,
Constant.FIND_BOARDS_BY_ORDER);
List cids = this.getBoardIDs(pcboards);
pboardOld.setChildIDs(cids);
this.getBoardDAO().saveBoard(pboardOld);
this.getBoardCache().remove(pboardOld.getId());
this.clearBoradListSysListCache(oldParentID);
}
}
this.getBoardCache().remove(board.getId()); // 從Cache中清除
return board;
} catch (Exception ex) {
logger.error(ex);
throw new BbscsException(ex);
}
}
最後一個方法了:
public void saveBoardsPostNumCount() throws BbscsException {
long totalNum = 0;
long totalMainNum = 0;
List bl = findBoardsByParentID(0, 1, -1, Constant.FIND_BOARDS_BY_ORDER);//從0繼承的版區有顯示主題數和貼子數的需求
for (int i = 0; i < bl.size(); i++) {
Board b = (Board) bl.get(i);
if (b.getBoardType() == 3) { //可發貼的版區吧!
b.setMainPostNum(this.getForumDAO().getForumNum(b.getId(), 1, 0, 0, -1)
+ this.getForumHistoryDAO().getForumNum(b.getId(), 1, 0, 0, -1));
b.setPostNum(this.getForumDAO().getForumNum(b.getId(), -1, 0, 0, -1)
+ this.getForumHistoryDAO().getForumNum(b.getId(), -1, 0, 0, -1));
//isNew=-1表示非主題貼,而1則相反!
try {
b = this.getBoardDAO().saveBoard(b);
totalNum = totalNum + b.getPostNum();
totalMainNum = totalMainNum + b.getMainPostNum();
// if (Constant.USE_CLUSTER) {
this.getBoardCache().remove(b.getId()); // 從Cache中清除
// } else {
// this.getBoardCache().add(b.getId(), b);
// }
} catch (Exception ex1) {
logger.error(ex1);
throw new BbscsException(ex1);
}
}
List bl2 = findBoardsByParentID(b.getId(), 1, -1, Constant.FIND_BOARDS_BY_ORDER); //子論壇的更新
if (!bl2.isEmpty()) {
for (int j = 0; j < bl2.size(); j++) {
Board b2 = (Board) bl2.get(j);
if (b2.getBoardType() == 3) {
b2.setMainPostNum(this.getForumDAO().getForumNum(b2.getId(), 1, 0, 0, -1)
+ this.getForumHistoryDAO().getForumNum(b2.getId(), 1, 0, 0, -1));
b2.setPostNum(this.getForumDAO().getForumNum(b2.getId(), -1, 0, 0, -1)
+ this.getForumHistoryDAO().getForumNum(b2.getId(), -1, 0, 0, -1));
try {
b2 = this.getBoardDAO().saveBoard(b2);
totalNum = totalNum + b2.getPostNum();
totalMainNum = totalMainNum + b2.getMainPostNum();
// if (Constant.USE_CLUSTER) {
this.getBoardCache().remove(b2.getId()); // 從Cache中清除
// } else {
// this.getBoardCache().add(b2.getId(), b2);
// }
} catch (Exception ex1) {
logger.error(ex1);
throw new BbscsException(ex1);
}
}
}
}
}
logger.info("postMainNum:" + totalMainNum + " postNum:" + totalNum);//打印
this.getSysStatService().savePostNum(totalMainNum, totalNum);//SysStatService服務終於用上了!
}
OK!我們直接進入DAO層:先看接口,發現與service接口層的方法並不相同,主要是由於service層有些方法是業務處理用,而不是用於數據處理,如createBoard,updateBoard,findBoardsAllTree,getBoardPermission,getBoardMasterPermission,isBoardMaster,當然DAO接口層也有一些方法是沒有的:findBoardsNeedCount,findBoardsInIDsfindBoardsIdByParentIDInUse等等,我們看其實現吧:
進入com.laoer.bbscs.BoardHibernateDAO中首先是一些字符常量:
private static final String LOADS_BY_PARENTID_BY_ORDER = "from Board where parentID = ? order by orders";
private static final String LOADS_ALL = "from Board";
public static final String[] FIND_BOARDS = new String[3];
public static final String LOAD_NEXT_ORDER = "select max(orders) from Board where parentID = ?";
private static final String LOAD_IDS_IN_USE = "select id from Board where parentID = ? and useStat = 1";
我們看幾個重點的實現方法:
public List findBoardsByParentID(long pid) {
return this.getHibernateTemplate().find(LOADS_BY_PARENTID_BY_ORDER, new Long(pid));
}
其重載方法:
public List findBoardsByParentID(final long pid, final int useStat, final int hidden, final int orderType) {
return getHibernateTemplate().executeFind(new HibernateCallback() {
public Object doInHibernate(Session s) throws HibernateException {
Criteria c = s.createCriteria(Board.class);
c.add(Restrictions.eq("parentID", new Long(pid)));
if (useStat != -1) {
c.add(Restrictions.eq("useStat", new Integer(useStat)));
}
if (hidden != -1) {
c.add(Restrictions.eq("isHidden", new Integer(hidden)));
}
if (orderType != -1) {
if (orderType == Constant.FIND_BOARDS_BY_ORDER) {
c.addOrder(Order.asc("orders"));
}
if (orderType == Constant.FIND_BOARDS_BY_MAINPOSTNUM) {
c.addOrder(Order.desc("mainPostNum"));
}
if (orderType == Constant.FIND_BOARDS_BY_POSTNUM) {
c.addOrder(Order.desc("postNum"));
}
}
return c.list();
}
});
}
其中用到了條件查詢(Criteria Query),參考http://blog.sina.com.cn/u/4a5e7dc401000878 和http://hi.baidu.com/yaolihui/blog/item/7c77b58286a56792f703a663.html,而public List findBoardIdsByParentID(final long pid, final int useStat, final int hidden, final int orderType)採用了構造HQL語句的方式來完成查詢!根據parentID預取得Board序列:
public int getNextOrder(long pid) {
List l = getHibernateTemplate().find(LOAD_NEXT_ORDER, new Long(pid));
if (l != null && !l.isEmpty()) {
if (l.get(0) == null) {
return 5;
} else {
return ((Integer) l.get(0)).intValue() + 5;
}
} else {
return 5;
}
}
public int getPostSumNum(final int mainorall, final int useStat, final int hidden) {
int sum = 0;
List list = getHibernateTemplate().executeFind(new HibernateCallback() {
public Object doInHibernate(Session s) throws HibernateException {
Criteria c = s.createCriteria(Board.class);
if (mainorall == 0) {
c.setProjection(Projections.projectionList().add(Projections.sum("mainPostNum"))); //求mainPostNum的和爲結果
}
if (mainorall == 1) {
c.setProjection(Projections.projectionList().add(Projections.sum("postNum")));//求postNum的和爲結果
}
if (useStat != -1) {
c.add(Restrictions.eq("useStat", new Integer(useStat)));
}
if (hidden != -1) {
c.add(Restrictions.eq("isHidden", new Integer(hidden)));
}
return c.list();
}
});
if (!list.isEmpty()) {
Object obj = (Object) list.get(0);//注:結果集只有一個字段
if (obj != null) {
sum = ((Integer) obj).intValue();
}
}
return sum;
}
public List findBoardsInIDs(final List ids, final int useStat, final int hidden) {
return getHibernateTemplate().executeFind(new HibernateCallback() {
@SuppressWarnings("unchecked")
public Object doInHibernate(Session s) throws HibernateException {
Criteria c = s.createCriteria(Board.class);
if (ids == null) { //ids爲空
List idss = new ArrayList();
idss.add(new Long(0));
c.add(Restrictions.in("id", idss));
} else if (ids.isEmpty()) {//ids爲empty
ids.add(new Long(0));
c.add(Restrictions.in("id", ids));
} else {
c.add(Restrictions.in("id", ids));//Restrictions.in
}
if (useStat != -1) {
c.add(Restrictions.eq("useStat", new Integer(useStat)));
}
if (hidden != -1) {
c.add(Restrictions.eq("isHidden", new Integer(hidden)));
}
c.addOrder(Order.asc("orders"));
return c.list();
}
});
}
public List findBoardsNeedCount(final int useStat, final int hidden) {
return getHibernateTemplate().executeFind(new HibernateCallback() {
public Object doInHibernate(Session s) throws HibernateException {
Criteria c = s.createCriteria(Board.class);
c.add(Restrictions.or(Restrictions.eq("boardType", new Integer(3)), Restrictions.eq("boardType",
new Integer(4))));//Restrictions.or 3,4的都需要count
if (useStat != -1) {
c.add(Restrictions.eq("useStat", new Integer(useStat)));
}
if (hidden != -1) {
c.add(Restrictions.eq("isHidden", new Integer(hidden)));
}
c.addOrder(Order.desc("mainPostNum"));
c.addOrder(Order.desc("postNum"));
return c.list();
}
});
}
public List findBoardsByParentID(final long pid, final int useStat, final int hidden) {
return getHibernateTemplate().executeFind(new HibernateCallback() {
public Object doInHibernate(Session s) throws HibernateException {
Criteria c = s.createCriteria(Board.class);
c.add(Restrictions.eq("parentID", new Long(pid)));//條件!
if (useStat != -1) {
c.add(Restrictions.eq("useStat", new Integer(useStat)));//附加條件!
}
if (hidden != -1) {
c.add(Restrictions.eq("isHidden", new Integer(hidden)));
}
return c.list();
}
});
}
public List findBoardsIdByParentIDInUse(long pid) {
return this.getHibernateTemplate().find(LOAD_IDS_IN_USE, new Long(pid));
}
OK!分析完畢!當然,對於具體的方法是怎麼被用上的,要看web層了.
接下來,看下BookMarkFactory接口,是個工廠接口.它只有一個一個公有方法, public BookMark getInstance(String userId);其實現爲BookMarkFactoryImp,它產生一個BookMark bean,不過是同步的! public synchronized BookMark getInstance(String userId) {
return new BookMark();//返回的是com.laoer.bbscs.bean.BookMark
}
另有一個實現:BookMarksFactoryImp:(有個私有屬性:int modNum及其get/set方法)
public synchronized BookMark getInstance(String userId) {
try {
return (BookMark) Class.forName(BBSCSUtil.getClassName("BookMark", userId, this.getModNum())).
newInstance();
}
catch (ClassNotFoundException ex) {
logger.error(ex);
return null;
}
catch (IllegalAccessException ex) {
logger.error(ex);
return null;
}
catch (InstantiationException ex) {
logger.error(ex);
return null;
}
}
這裏用到了com.laoer.bbscs.common包中的工具類:BBSCSUtil.java
public static String getClassName(String className, String userID) {
int num = Math.abs(userID.hashCode());
className = Constant.BEANPERFIX + className + (num % 10);//public static String BEANPERFIX = "com.laoer.bbscs.bean.";
return className;
}
public static String getClassName(String className, String userID, int modnum) {
int num = Math.abs(userID.hashCode());
className = Constant.BEANPERFIX + className + (num % modnum);
return className; //應該返回是就是com.laoer.bbscs.bean.BookMark0~~~9之間的class了
}
public static String getClassName(String className, long bid, int modnum) {
className = Constant.BEANPERFIX + className + (bid % modnum);
return className;
}
而BookMarkService則完全負責這個業務!先看BEAN:
private String id;
private String userID;
private String bookMarkName;
private String url;
private String alt;
private int isShare;
private Date createTime;
<hibernate-mapping package="com.laoer.bbscs.bean">
<class name="BookMark" table="bbscs_bookmark">
<id name="id" column="ID" type="string" unsaved-value="null">
<generator class="uuid"/>
</id>
<property column="UserID" length="40" name="userID" not-null="true" type="string"/>
<property column="BookMarkName" length="255" name="bookMarkName" not-null="true" type="string"/>
<property column="Url" length="255" name="url" type="string"/>
<property column="Alt" length="255" name="alt" type="string"/>
<property column="IsShare" length="1" name="isShare" type="int"/>
<property column="CreateTime" name="createTime" not-null="true" type="timestamp"/>//timestamp類型!
</class>
</hibernate-mapping>
看service接口中的方法:
public BookMark findBookMarkByIDUserID(String id, String userID);
public BookMark saveBookMark(BookMark bm) throws BbscsException;
public long getBookMarkNumByUserID(String userID);
public PageList findBookMarks(String userID, Pages pages);
public PageList findBookMarksByUserIDShare(String userID, int isShare, Pages pages);
public void removeBookMark(BookMark bm) throws BbscsException;
public void removeBookMarkByIDUserID(String id, String userID) throws BbscsException;
我們看實現層:先注入BookMarkDAO對象.特別的是:
public PageList findBookMarks(String userID, Pages pages) {
PageList pl = new PageList();
if (pages.getTotalNum() == -1) {
pages.setTotalNum(this.getBookMarkDAO().getBookMarkNumByUserID(userID));
}
pages.executeCount();
List l = this.getBookMarkDAO().findBookMarks(userID, pages.getSpage(), pages.getPerPageNum()); //DAO層方法,Service層沒有
pl.setObjectList(l);
pl.setPages(pages);
return pl;
}
和
public PageList findBookMarksByUserIDShare(String userID, int isShare, Pages pages) {
PageList pl = new PageList();
if (pages.getTotalNum() == -1) {
pages.setTotalNum(this.getBookMarkDAO().getBookMarkNumByUserIDShare(userID, isShare));
}
pages.executeCount();
List l = this.getBookMarkDAO().findBookMarksByUserIDShare(userID, isShare, pages.getSpage(),
pages.getPerPageNum());//DAO層方法,Service層沒有
pl.setObjectList(l);
pl.setPages(pages);
return pl;
}
這裏用到了2個分頁功能的類:它們都在com.laoer.bbscs.service.web包中,一個Page一個PageList;
兩個都是javaBEAN,不過可以帶少量的業務邏輯處理功能.先看Pages:
int page=1;//頁號
long totalNum=-1;//記錄總數
int perPageNum=1;//每頁顯示記錄數
int allPage=1;//總頁數
int cpage=1;//當前頁
int spage=1;//開始記錄數
String fileName="";
boolean useUrlRewirte=false;
public Pages(int page, long totalNum, int perPageNum) {
this.page = page;
this.totalNum = totalNum;
this.perPageNum = perPageNum;
this.executeCount();
}
public void executeCount() {
this.allPage = (int) Math.ceil((this.totalNum + this.perPageNum - 1) / this.perPageNum);
int intPage = this.page;
if (intPage > this.allPage) { // pages == 0
this.cpage = 1;
} else {
this.cpage = intPage;
}
this.spage = (this.cpage - 1) * this.perPageNum;
}
而PageList包括一個pages和List類型的objectList 及其set/get方法
public PageList() {
}
我們回到findBookMarks,先得到totalNum,再執行executeCount(),設置其值後,用this.getBookMarkDAO().findBookMark(userID,pages.getspage,pages.getPerPageNum())得到後賦給PageList的objectList和page對象.這樣,就可以給web層用List去遍歷了,當然也要配合page.
我們直接進入DAO接口層:(其實它完全爲service層服務,整體上差不多不過有些方法卻不一樣)
public BookMark saveBookMark(BookMark bm);
public BookMark findBookMarkByIDUserID(String id,String userID);
public long getBookMarkNumByUserID(String userID);
public List findBookMark(final String userID,final int firstResult,final int maxResults);
public long getBookMarkNumByUserIDShare(String userID, int isShare);
public List findBookMarksByUserIDShare(final String userID, final int isShare, final int firstResult,final int maxResults);//final int類型,方法體裏不可改變
public void removeBookMark(BookMark bm);
public void removeBookMarkByIDUserID(String id, String userID);
看它的實現BookMarkHibernateDAO.java:(private static final String類型)
private static final String LOAD_BY_ID_USERID = "from BookMark where id = ? and userID = ?";
private static final String GET_NUM_BY_USERID = "select count(*) from BookMark where userID = ?";
private static final String LOADS_BY_USERID =
"from BookMark where userID = ? order by createTime desc";
private static final String REMOVE_BY_ID_USERID =
"delete from BookMark where id = ? and userID = ?";
private static final String GET_NUM_BY_USERID_ISSHARE =
"select count(*) from BookMark where userID = ? and isShare = ?";
private static final String LOADS_BY_USERID_ISSHARE =
"from BookMark where userID = ? and isShare = ? order by createTime desc";
我們看其中的一些方法(根據UserID取得BookMark數量)
public long getBookMarkNumByUserID(String userID) {
List l = this.getHibernateTemplate().find(GET_NUM_BY_USERID, userID);
if (l == null || l.isEmpty()) {
return 0;
}
else {
return ( (Long) l.get(0)).longValue();
}
}
另外一個方法:(根據UserID和isShare取得BookMark列表)
public List findBookMarksByUserIDShare(final String userID, final int isShare,
final int firstResult,
final int maxResults) {
return getHibernateTemplate().executeFind(new HibernateCallback() {
public Object doInHibernate(Session s) throws HibernateException, SQLException {
Query query = s.createQuery(LOADS_BY_USERID_ISSHARE);
query.setString(0, userID);
query.setInteger(1, isShare);
query.setFirstResult(firstResult);
query.setMaxResults(maxResults);
List list = query.list();
return list;
}
});
}
我們看下CommendService:(推薦)
<bean id="commendServiceTarget"
class="com.laoer.bbscs.service.imp.CommendServiceImp">
<property name="commendDAO">
<ref local="commendDAO" />
</property>
<property name="forumDAO">
<ref local="forumMainDAO" />
</property>
<property name="commendFileIO">
<ref local="commendFileIO" />
</property>
<property name="sysListObjCache">
<ref local="sysListObjCache" />
</property>
</bean>
先看bean:
private String id;
private long boardID;//版區ID
private String boardName;
private String postID;
private String postMainID;
private String userID;
private String userName;
private long commendBoardID;//推薦頂層版區ID
private int commendTop;//是否推薦到首頁
private String title;//帖子標題
private long createTime;//創建時間
<hibernate-mapping package="com.laoer.bbscs.bean">
<class name="Commend" table="bbscs_commend">
<id name="id" column="ID" type="string" unsaved-value="null">
<generator class="uuid"/>
</id>
<property column="BoardID" length="13" name="boardID" not-null="true" type="long"/>
<property column="BoardName" length="60" name="boardName" not-null="true" type="string"/>
<property column="PostID" length="40" name="postID" not-null="true" type="string"/>
<property column="PostMainID" length="40" name="postMainID" not-null="true" type="string"/>
<property column="UserID" length="40" name="userID" not-null="true" type="string"/>
<property column="UserName" length="20" name="userName" not-null="true" type="string"/>
<property column="CommendBoardID" length="13" name="commendBoardID" not-null="true" type="long"/>
<property column="CommendTop" length="1" name="commendTop" not-null="true" type="int"/>
<property column="Title" length="150" name="title" type="string"/>
<property column="BoardCategory" length="40" name="boardCategory" type="string"/>
<property column="TopCategory" length="40" name="topCategory" type="string"/>
<property column="CreateTime" name="createTime" not-null="true" type="long"/>
</class>
</hibernate-mapping>
CommendServie接口中有以下主要方法:
public Commend saveCommend(Commend commend) throws BbscsException;
public int getCommendNumByCommendBoardID(long commendBoardID);
public PageList findCommendsByCommendBoardID(long commendBoardID, Pages pages);
public int getCommendNumByCommendTop(int commendTop);
public void removeCommend(long commendBoardID, List ids) throws BbscsException;
public void createCommendTopFile(int num) throws BbscsException;
public List findCommendsByCommendTopCache(int commendTop, int num);
而其實現層大多方法給DAO去實現之.下面爲其中的幾個方法:
public PageList findCommendsByCommendBoardID(long commendBoardID, Pages pages) {
PageList pl = new PageList();
if (pages.getTotalNum() == -1) {
pages.setTotalNum(this.getCommendDAO().getCommendNumByCommendBoardID(commendBoardID));//DAO實現
}
pages.executeCount();
List l = this.getCommendDAO().findCommendsByCommendBoardID(commendBoardID, pages.getSpage(),
pages.getPerPageNum());
pl.setObjectList(l);
pl.setPages(pages);
return pl;
}
下面是從頂層版區刪除推薦....
public void removeCommend(long commendBoardID, List ids) throws BbscsException {
List l = this.getCommendDAO().findCommendsInIds(ids);
try {
for (int i = 0; i < l.size(); i++) {
Commend c = (Commend) l.get(i);//取出
Forum f = this.getForumDAO().findForumByID(c.getPostID(), c.getBoardID());
f.setCommend(0);//修改是否推薦標誌
this.getForumDAO().saveOrUpdateForum(f);
this.getCommendDAO().removeCommend(c);
}
List commendList = this.getCommendDAO().findCommendsByCommendBoardID(commendBoardID, 0, 10);
this.getCommendFileIO().saveCommendInReadPageFile(commendBoardID, commendList);//寫入推薦文件中!!!!
} catch (Exception ex) {
logger.error(ex);
throw new BbscsException(ex);
}
}
public void createCommendTopFile(int num) throws BbscsException {
List l = this.getCommendDAO().findCommendsByCommendTop(0, 0, num);
try {
this.getCommendFileIO().saveCommendInReadPageFile(0, l);
} catch (IOException ex) {
logger.error(ex);
throw new BbscsException(ex);
}
}
而findCommendByCommendTopCache爲從SysListObjCache中獲得10條推薦信息!
public List findCommendsByCommendTopCache(int commendTop, int num) {
List l = (List) this.getSysListObjCache().get(Constant.COMMEND_CACHE_NAME);//public static final String COMMEND_CACHE_NAME = "CommendSceipt";
if (l == null) {
l = this.getCommendDAO().findCommendsByCommendTop(commendTop, 0, num);
this.getSysListObjCache().add(Constant.COMMEND_CACHE_NAME, l);
}
return l;
}
我們來分析下commendFileIO:
<bean id="commendFileIO"
class="com.laoer.bbscs.fio.imp.CommendFileIOImp" />
由於service實現層用的是fio接口層,實際注入的卻是fil.imp裏面的東西:
public interface CommendFileIO {
public void saveCommendInReadPageFile(long commendid, List commendList) throws IOException;//只有一個方法
}
看其實現,裏面用了BBSCSUtilTextUtils工具類,它其實寫了2個文件!!!前一個在貼子顯示時用到,後一個可見www.laoer.com斑主推薦部分!
public void saveCommendInReadPageFile(long commendid, List commendList) throws IOException {
StringBuffer sb = new StringBuffer();
for (int i = 0; i < commendList.size(); i++) {
Commend commend = (Commend) commendList.get(i);
sb.append("·");
sb.append("<a href="");
if (Constant.USE_URL_REWRITE) {
sb.append("read-topic-" + commend.getBoardID() + "-" + commend.getPostMainID() + "-0-1-index-1.html");
}
else {
sb.append(BBSCSUtil.getActionMappingURLWithoutPrefix("read?action=topic&id=" + commend.getPostMainID() +
"&bid=" + commend.getBoardID()));
}
sb.append("">");
sb.append(TextUtils.htmlEncode(commend.getTitle()));
sb.append("</a><BR/>");
}
File commendFile = new File(BBSCSUtil.getIncludePath() + "Commend_" + commendid + ".html");
FileUtils.writeStringToFile(commendFile, sb.toString(), Constant.CHARSET);
commendFile = null;
sb = null;
sb = new StringBuffer();
//int counter = 0;
for (int i = 0; i < commendList.size(); i++) {
Commend c = (Commend) commendList.get(i);
sb.append("<tr>");
sb.append("<td>");
sb.append("<a href="");
if (Constant.USE_URL_REWRITE) {
sb.append("read-topic-" + c.getBoardID() + "-" + c.getPostMainID() + "-0-1-index-1.html");
}
else {
sb.append(BBSCSUtil.getActionMappingURLWithoutPrefix("read?action=topic&id=" + c.getPostMainID() +
"&bid=" + c.getBoardID()));
}
sb.append("" title="");
sb.append(c.getTitle());
sb.append("">");
sb.append(c.getTitle());
sb.append("</a>");
sb.append("[<a href="");
if (Constant.USE_URL_REWRITE) {
sb.append("forum-index-" + c.getBoardID() + ".html");
}
else {
sb.append(BBSCSUtil.getActionMappingURLWithoutPrefix("forum?action=index&bid=" + c.getBoardID()));
}
sb.append("">");
sb.append(c.getBoardName());
sb.append("</a>]");
sb.append("</td>");
sb.append("</tr>");
}
commendFile = new File(BBSCSUtil.getIncludePath() + "ForumCover_Commend_" + commendid + ".html");
FileUtils.writeStringToFile(commendFile, sb.toString(), Constant.CHARSET);
}
BBSCSUtil中的方法:(前面的一些的分析)
getUserWebFilePath()返回一個本地的用戶資料文件路徑,絕對的(加了ROOTPATH)
getUserWebPath()相對的...
getWebRealPath()返回URL(一級)
getUpFilePath和getUpFileWebPath類似與上getUserWebFilePath
getIncludePath()返回本地的路徑/include/
對於BBSCSUtil.getActionMappingURLWithoutPrefix("forum?action=index&bid=" + c.getBoardID()),用了工具類封裝了真實的網頁後綴!
public static String getActionMappingURLWithoutPrefix(String action) {
//action="forum?action=index&bid=" + c.getBoardID()
StringBuffer value = new StringBuffer();
// Use our servlet mapping, if one is specified
String servletMapping = Constant.SERVLET_MAPPING;//*.bbscs
if (servletMapping != null) {
String queryString = null;
int question = action.indexOf("?");//6
if (question >= 0) {
queryString = action.substring(question);//"action=index&bid="+c.getBoardID()
}
String actionMapping = getActionMappingNameWithoutPrefix(action);//forum
if (servletMapping.startsWith("*.")) {
value.append(actionMapping);//forum
value.append(servletMapping.substring(1));//forum.bbscs
} else if (servletMapping.endsWith("/*")) {
value.append(servletMapping.substring(0, servletMapping.length() - 2));
value.append(actionMapping);
} else if (servletMapping.equals("/")) {
value.append(actionMapping);
}
if (queryString != null) {
value.append(queryString);//value="forum.bbscs?action=index&bid="+c.getBoardID()
}
}
return (value.toString());
}
public static String getActionMappingNameWithoutPrefix(String action) {
String value = action;////action="forum?action=index&bid=" + c.getBoardID()
int question = action.indexOf("?");//6
if (question >= 0) {
value = value.substring(0, question);//value="forum"
}
int slash = value.lastIndexOf("/");//slash=0;如果是main/forum.bbscs的話slash=4
int period = value.lastIndexOf(".");//period=0;.....................period=9
if ((period >= 0) && (period > slash)) {
value = value.substring(0, period);//value=0....perod main/forum
}
return (value); //forum
}
接下來,我們看CommendDAO,這個接口中提供瞭如下方法:
public Commend saveCommend(Commend commend);
public Commend findCommendByID(String id);
public Commend findCommendByPostID(String postID);
public int getCommendNumByCommendBoardID(long commendBoardID);
public List findCommendsByCommendBoardID(long commendBoardID, final int firstResult, final int maxResults);
public int getCommendNumByCommendTop(int commendTop);
public List findCommendsByCommendTop(int commendTop, final int firstResult, final int maxResults);
public List findCommendsInIds(List ids);
public void removeCommend(Commend commend);
public void removeCommend(String postID);
看實現:
private static final String LOADS_IN_IDS = "from Commend where id in (:ids)";
public List findCommendsInIds(final List ids) {
return getHibernateTemplate().executeFind(new HibernateCallback() {
public Object doInHibernate(Session s) throws HibernateException, SQLException {
Query query = s.createQuery(LOADS_IN_IDS);
query.setParameterList("ids", ids);//List!!!final List ids
List list = query.list();
return list;
}
});
}
ConfigService用於配置服務:(它有兩個屬性:id,confContext其hbm.xml
<hibernate-mapping package="com.laoer.bbscs.bean">
<class name="Config" table="bbscs_config">
<id name="id" column="ID" type="string" unsaved-value="undefined">
<generator class="assigned"/>
</id>
<property column="ConfContext" name="confContext" type="text"/>
</class>
</hibernate-mapping>
有public Config updateConfig(Config config) throws BbscsException;
public Config findConfigByID(String id);
public List findConfigs();
public void updateAllConfigs(HashMap configs) throws BbscsException;
其實現:
public void updateAllConfigs(HashMap configs) throws BbscsException {
Iterator it = configs.values().iterator();
try {
while (it.hasNext()) {
Config config = (Config) it.next();
this.getConfigDAO().updateConfig(config);
}
}
catch (Exception ex) {
logger.error(ex);
throw new BbscsException(ex);
}
}
由於比較簡單,直接PASS:
public List findConfigs() {
return this.getHibernateTemplate().find(LOAD_ALL);
}
看EliteService,其對應的BEAN有以下屬性:
private Long id;
private long boardID;//版區ID
private long parentID; //父ID
private List parentIDs;//你級ID列表,用","分開
private String eliteName;//精華目錄名稱
private String createUser;//創建者
private long eliteTime;//創建時間
private int orders;//序
<hibernate-mapping package="com.laoer.bbscs.bean">
<class name="Elite" table="bbscs_elite">
<id name="id" column="ID" type="long" unsaved-value="null">
<generator class="identity"/>//自動增長
</id>
<property column="BoardID" length="20" name="boardID" not-null="true" type="long"/>
<property column="ParentID" length="20" name="parentID" not-null="true" type="long"/>
<property column="ParentIDs" name="parentIDs" type="com.laoer.bbscs.ext.hibernate.SplitList"/>//自定義類型
<property column="EliteName" length="90" name="eliteName" type="string"/>
<property column="CreateUser" length="60" name="createUser" type="string"/>
<property column="EliteTime" length="20" name="eliteTime" type="long"/>
<property column="Orders" length="11" name="orders" type="int"/>
</class>
</hibernate-mapping>
進行方法中:
public Elite createElite(Elite elite) throws BbscsException;
public Elite saveElite(Elite elite) throws BbscsException;
public Elite findEliteByID(long id);
public List findElitesByPidBid(long pid, long bid);
public void removeElite(Elite elite) throws BbscsException;
public List findElitesInIds(List ids);
它首先注入了DAO:eliteDAO和forumDAO;需要注意的是:
public Elite createElite(Elite elite) throws BbscsException {
Elite pElite = this.getEliteDAO().findEliteByID(elite.getParentID());
if (pElite != null) {
List pElites = new ArrayList();
pElites.addAll(pElite.getParentIDs());
pElites.add(pElite.getId());
elite.setParentIDs(pElites);//構造一下其ParentIDs
}
try {
return this.getEliteDAO().saveElite(elite);
}
catch (Exception ex) {
logger.error(ex);
throw new BbscsException(ex);
}
}
public void removeElite(Elite elite) throws BbscsException {
try {
List l = this.getForumDAO().findForumsElite(elite.getBoardID(), elite.getBoardID(),
elite.getId().longValue());
for (int i = 0; i < l.size(); i++) {
Forum forum = (Forum) l.get(i);
forum.setEliteID(elite.getParentID());//改變之
this.getForumDAO().saveOrUpdateForum(forum);
}
this.getEliteDAO().removeElite(elite);
}
catch (Exception ex) {
logger.error(ex);
throw new BbscsException(ex);
}
}
我們直接看DAO:
public Elite saveElite(Elite elite);
public Elite findEliteByID(long id);
public List findElitesByPidBid(long pid, long bid);
public void removeElite(Elite elite);
public List findElitesInIds(List ids);
對於具體地實現我們PASS.
現在,讓我們看一下最複雜的一個業務對象,forum,它是一個論壇的核心部分,貼子(其實這個單詞是論壇的意思)當然其關係到的業務邏輯及其它東東也最多了!我們從BEAN開始研究:(右邊爲一條數據庫表的記錄,注意其中有許多Default值)
private String id; //主鍵 402881e513bdc8550113bdefb43c0014
private String parentID; //父級ID NULL值
private String mainID; //MainID 402881e513bdc8550113bdefb43c0014
private long boardID; //版區ID 2
private String boardName; java
private int reNum; //回覆數 0
private int face; //表情 0
private String userID; //用戶ID 4028818208ed006b0108ed020bd50001
private String userName; webmaster
private String nickName; webmaster
private String title; //標題 dffdsfds
private String detail;//文件名稱 P_2_402881e513bdc8550113bdefb43c0014.txt
private String sign;//簽名 NULL
private int artSize;//字數 58
private int click;//點擊數 5
private long postTime;//發貼時間 1184302609453
private long lastTime;//最後回覆時間 1184302609453
private String ipAddress;//IP地址 127.0.0.1
private int isNew;//是否是主貼(這個取名有點問題) 1
private long elite;//是否精華 0
private long eliteID;//精華目錄ID 0
private int agree;//贊成 0
private int beAgainst;//反對 1
private int canNotDel;不是水貼標誌 0
private int delSign;//刪除標誌 0
private String delUserID;//刪除者 NULL
private String delUserName; NULL
private long delTime; 0
private String delIP; NULL
private String amend;//刪除附加信息 NULL
private String doEliteName;//加入精華者用戶名 NULL
private long doEliteTime;//加入精華時間 0
private int haveAttachFile;//是否有附件 0
private List attachFileName = new ArrayList();//附件文件名列表 NULL
private String lastPostUserName;//最後回覆用戶名 ---
private String lastPostTitle;//最後回覆帖子標題 NULL
private String lastPostNickName; ---
private long isTop;//置頂標誌 0
private int isLock;//鎖定標誌 0
private int auditing;//審覈標誌 0
private int auditingAttachFile;//附件審覈標誌 0
private int isVote;//是否投票貼標誌 0
private int isHidden;//是否隱藏貼標誌 0
private int editType;//編輯器類型 0
private String quoteText;//引用文字 NULL
private int postType;//發貼類型 0
private int titleColor;//標題color 5
private int canNotRe;//已經是否回覆標誌 0
private long commend;//推薦標誌 0
private int isHiddenValue;//隱藏貼參數 0
private int userBlog;//加入個人文集標誌 0
private int indexStatus;//索引標誌 0
private int quoteEditType;//引用文字編輯器類型 0
private int emailInform;//通知發信到哪裏(不用) 0
private int msgInform;//消息到誰(不用) 0
private String voteID;//投票ID NULL
private String tagID;//版區Tag 0
private String tagName;//版區Tag名稱 NULL
private int isGuest;//是否遊客發貼 0
private int previewAttach;//附件預覽標誌 1
對於ForumMain-mysql.hbm.xml,
<property column="AttachFileName" name="attachFileName" type="com.laoer.bbscs.ext.hibernate.SplitStringList"/>
我們看下這個另外的hibernate自定義類型類,它與SplitList類似......
而在數據庫中:(請多看看數據庫中的數據)
PRIMARY KEY (`ID`),
UNIQUE KEY `ID` (`ID`),
KEY `MainID` (`MainID`),
KEY `BoardID` (`BoardID`),
KEY `LastTime` (`LastTime`),
KEY `PostTime` (`PostTime`),
KEY `UserID` (`UserID`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
進入到forumservice中,有一大堆方法:(不加javadoc的話應該不會有100個吧!嚇人!)
public Forum saveOrUpdateForum(Forum forum) throws BbscsException;
public Forum saveForum(Forum forum) throws BbscsException;
public Forum updateForum(Forum forum) throws BbscsException;
public Forum findForumByID(String id);
public Forum findForumByID(String id, long bid);//根據ID,Bid取得Forum對象
public long getForumNum(long bid, int isNew, int delSign, int auditing, int auditingAttachFile);//取得帖子數量
public long getForumNum(long bid);//取得正常帖子數量
public long getForumMainNum(long bid);//取得主帖數量
public long getForumDelNum(long bid);//取得已刪除帖子數量
public long getForumAuditingNum(long bid);//取得未審覈帖子數量
public long getForumTopicNum(long bid, String mainID, int delSign, int auditing);//取得同一主題帖子數量
public long getForumTopicNum(long bid, String mainID);//取得一個主題的帖子數量(正常的)
public long getForumTopicDelNum(long bid, String mainID);//取得一個主題已刪除帖子數量
public long getForumTopicAuditingNum(long bid, String mainID);//取得一個主題未審覈帖子數量
public List findForums(long bid, int isNew, int delSign, int auditing, OrderObj[] oo);//取得帖子列表
public PageList findForums(long bid, int isNew, int delSign, int auditing, int auditingAttachFile, OrderObj[] oo,
Pages pages);
public PageList findForumsMainWWW(long bid, Pages pages);//取得主帖分頁列表(WWW方式，發帖時間排序)
public PageList findForumsMainLastRe(long bid, Pages pages);//取得主帖分頁列表(頂帖方式，回覆時間排序)
public PageList findForumsAll(long bid, Pages pages);//取得正常帖子分頁列表，不分主從
public PageList findForumsDel(long bid, Pages pages);// 取得已刪除帖子分頁列表
public PageList findForumsAuditing(long bid, Pages pages);// 取得未審覈帖子分頁列表
public PageList findForumsTopic(long bid, String mainID, int delSign, int auditing, OrderObj[] oo, Pages pages);//取得同一主題帖子分頁列表
public PageList findForumsTopic(long bid, String mainID, Pages pages);
public List findForumsTopicAll(long bid, String mainID, int delSign, int auditing, OrderObj[] oo);
public List findForumsTopicDel(long bid, String mainID);//取得已刪除同一主題帖子列表
public List findForumsTopicAuditing(long bid, String mainID);取得未審覈同一主題帖子列表
public List findForumsElite(long bid, long elite, long eliteId);取得精華帖列表
public long getSearchNum(long bid, String con, String text, int delSign, int auditing);取得搜索帖子數量
public PageList getSearchList(long bid, String con, String text, int delSign, int auditing, String orderby,
int ascOrDesc, Pages pages);取得搜索結果分頁列表
public long getSearchNum(long bid, String con, String text);取得搜索帖子數量(不帶條件)
public PageList getSearchList(long bid, String con, String text, Pages pages);
public long getForumOwnerNum(String userID);取得自己的帖子數量
public PageList findForumsOwner(String userID, int isNew, Pages pages);取得自己的帖子分頁列表
public void removeForum(String id, long bid) throws BbscsException;刪除Forum對象
public void removeForum(String id) throws BbscsException;
public void removeForum(Forum forum) throws BbscsException;
public Forum createForum(Forum forum) throws BbscsException;發帖
public Forum createForum(Forum forum, Board board, UserInfo ui, UploadFile uploadFile) throws BbscsException;
public Forum createReForum(Forum forum, Forum mainForum, Board board, UserInfo ui, UploadFile uploadFile,
boolean isQuote) throws BbscsException;回帖
public Forum createForumUpFile(Forum forum, UploadFile uploadFile) throws BbscsException;
public Forum editForum(Forum forum) throws BbscsException;帖子修改
public long getForumNumCommend(long bid, long commen);
public long getForumNumCommend(long commend);
public PageList findForumsCommend(long bid, long commen, Pages pages);
public PageList findForumsCommend(long commend, Pages pages);
public boolean isReedUser(long bid, String mainID, String userID);
public void delaPost(Forum forum, Board board, UserInfo ui) throws BbscsException;刪除一個帖子
public void savePostElite(Forum forum, UserInfo ui) throws BbscsException;
public void saveForums(List forums) throws BbscsException;
public void saveForumsEliteDel(List forums) throws BbscsException;
public Forum createVoteForum(Forum forum, Board board, Vote vote, UserInfo ui,String voteItem) throws BbscsException;
public long getForumOwnerNum(long bid, String userID, String mainID);摟主帖子數
public PageList findForumsOwner(long bid, String userID, String mainID, Pages pages);只看樓主
public void removeAttachFile(Forum forum, List fileNames) throws BbscsException;刪除附件
public void removeAllAttachFile(Forum forum) throws BbscsException;刪除某個帖子所有附件
public void delForumsNotAuditingAttachFile(List ids) throws BbscsException;刪除未通過審覈的帖子附件
public long getForumNumHotTopic(long bid, int reNum, int click);
public PageList findForumsHotTopic(long bid, int reNum, int click, Pages pages);
public void removeToHistory(long atime) throws BbscsException;
public void delPosts(List forums, Board board) throws BbscsException;
public List findForumsInIds(long bid, List ids);
public List findForumsInIds(List ids);
public void delPostReal(Forum forum) throws BbscsException;
public void delPostsReal(List ids) throws BbscsException;
public void delWastePost(long bid) throws BbscsException;
public PageList findForumsAllManage(long bid, Pages pages);
public void saveForumsResume(List ids, Board board) throws BbscsException;
public void saveForumsAuditingAttachFile(List ids) throws BbscsException;
public long getForumsAuditingAttachFileNum(long bid);
public PageList findForumsAuditingAttachFile(long bid, Pages pages);
public List findForumsTopicAuditingAttachFile(long bid, String mainID);
public void saveForumChangeUser(Forum forum, int[] titleType, int[] values) throws BbscsException;
public void saveForumChangeUser(Forum forum, int titleType, int values) throws BbscsException;
public void createCommendPage(long commend) throws BbscsException;
public void saveForumCommend(int createOrDel, Board board, Forum forum) throws BbscsException;
public List findForumsByIndexStatus(int indexStatus);
public List findForumsAllNew(int num);
public List findForumsAllNewCache(int num);
public PageList findForumsAll(long bid, String tagID, Pages pages);
public PageList findForumsMainWWW(long bid, String tagID, Pages pages);
public PageList findForumsMainLastRe(long bid, String tagID, Pages pages);
public void saveForumBuy(long bid, String postId, Forum f, UserInfo buyFromUi) throws BbscsException;
public long getForumBuyNumByPostId(String postId);
public ForumBuy findForumBuyByPostIdFromId(String postId, String fromId);
public Forum saveEditForum(Forum forum) throws BbscsException;
public void saveMoveForum(Forum forum, Board toboard) throws BbscsException;
public void saveMoveForum(long frombid, String mainid, Board toboard) throws BbscsException;
public String getForumDetail(Forum forum, boolean forcefromfile);
我們進入ForumServiceImp類:
首先它注入了許多DAO和其它服務,如:forumDAO,userInfoDAO,forumUploadFile,sysListObjCache,sysConfig,userInfoFileIO,subscibeFactory,subscibeDAO,boardDAO,subscibeQueue,forumBuyDAO,voteDAO,voteItemDAO,commendDAO,commendFileIO,forumHistoryDAO,forumConfig,postCache....當然,還有logger,真得太嚇人了,太多東東了!
public Forum createForum(Forum forum) throws BbscsException {
Board board = this.getBoardDAO().getBoardByID(forum.getBoardID());//得到版區
UserInfo ui = this.getUserInfoDAO().findUserInfoById(forum.getUserID());//得到用戶信息
return createForum(forum, board, ui, null);//讓別人去完成!
}
@SuppressWarnings("unchecked") //因爲有些非JDK5.0的開源庫如hibernate, 函數返回的一定是List，而不會是List<User>，這時候IDE就會爆出很多warning。用SuppressWarning("unchecked")可以讓IDE安靜一些。
public Forum createForum(Forum forum, Board board, UserInfo ui, UploadFile uploadFile) throws BbscsException {
try {
if (Constant.POST_STORAGE_MODE == 0) {//貼子存儲方式,其實在web.xml中有設定
forum = this.getForumDAO().saveOrUpdateForum(forum);
} else {
String detail = forum.getDetail();//現在用這種方式
forum = this.getForumDAO().saveOrUpdateForum(forum);
String postFileName = "P_" + forum.getBoardID() + "_" + forum.getId() + ".txt";//可見safe文件夾下的post下的....
File postFile = new File(this.getForumConfig().getForumPath(forum.getBoardID(), forum.getPostTime())
+ postFileName);
FileUtils.writeStringToFile(postFile, detail, Constant.CHARSET);//寫入文件
forum.setDetail(postFileName);//而寫入數據庫的只是文件名
}
if (uploadFile != null) {
String fileName = "File_" + forum.getId() + "_" + System.currentTimeMillis()//當前時間 + "."
+ FilenameUtils.getExtension(uploadFile.getFileName());//文件後綴
String toFilePath = BBSCSUtil.getUpFilePath(forum.getBoardID(), forum.getPostTime());//以前講過的,應該生成safe/upload/...
/**
public static String getUpFilePath(long bid, long adate) {
StringBuffer sb = new StringBuffer();
sb.append(Constant.ROOTPATH);
sb.append(getUpFileWebPath(bid, adate));
File ft = new File(sb.toString());
if (!ft.exists()) {
ft.mkdirs();
}
return sb.toString();
}
public static String getUpFileWebPath(long bid, long adate) {
StringBuffer sb = new StringBuffer();
sb.append("upload/");
sb.append((bid % 20));
sb.append("/");
sb.append(bid);
sb.append("/");
sb.append(Util.formatDate4(new Date(adate)));
sb.append("/");
return sb.toString();
}
*/
this.getForumUploadFile().saveUploadFile(toFilePath + fileName, uploadFile, this.getSysConfig());//帖子上傳文件
forum.setHaveAttachFile(1);//有附件
forum.getAttachFileName().add(fileName);//List里加入內容!
if (board.getAuditAttach() == 1) {
forum.setAuditingAttachFile(1);
}
}
forum.setMainID(forum.getId());
forum = this.getForumDAO().saveOrUpdateForum(forum);//刷新一下
if (board.getAuditPost() == 0 && board.getAddUserPostNum() == 1) { // 不需要審覈,並且版區爲增加用戶發帖數量
ui.setArticleNum(ui.getArticleNum() + 1);
ui.setExperience(ui.getExperience() + 2); // 發帖增加經驗值2點。
ui = this.getUserInfoDAO().saveUserInfo(ui);//用戶信息更新
this.getUserInfoFileIO().writeUserFile(ui);//用戶信息寫入文件!見safe/user
}
if (forum.getEmailInform() != 0 || forum.getMsgInform() != 0) {
if (this.getSubscibeDAO().findSubscibeByPostID(forum.getId(), ui.getId(), forum.getBoardID()) == null) {
Subscibe subs = this.getSubscibeFactory().getInstance(forum.getBoardID());
subs.setBoardID(forum.getBoardID());
subs.setCreateTime(new Date());
subs.setEmailinform(forum.getEmailInform());
subs.setMsginform(forum.getMsgInform());
subs.setNickName(ui.getNickName());
subs.setPostID(forum.getId());
subs.setPostTitle(forum.getTitle());
subs.setUserEmail(ui.getEmail());
subs.setUserID(ui.getId());
subs.setUserName(ui.getUserName());
subs.setUserLocale(ui.getUserLocale());
this.getSubscibeDAO().saveSubscibe(subs);//訂閱服務!
}
}
this.getSysListObjCache().remove(Constant.FORUM_NEW_CACHE_NAME);//文章Cache,remove方法來自Cache接口!
return forum;
} catch (Exception ex) {
logger.error(ex);
throw new BbscsException(ex);
}
}
我們看下ForumConfig的getForumPath:(注意:forum.getBoardID()--->bid,forum.getPostTime()-->adate)
這個服務類注入的是private String safePath;
public String getSafePath() {
return safePath;
}
public void setSafePath(String safePath) {
this.safePath = safePath;
}
它有兩個方法:getForumPathOld與getForumPath其實完全一樣!555
public String getForumPath(long bid, long adate) {
StringBuffer sb = new StringBuffer();
sb.append(this.getSafePath());
if (!this.getSafePath().endsWith("/")) {
sb.append("/");
}
sb.append("post/");
sb.append(bid % 20); //bid%20的餘數 2
sb.append("/");
sb.append(bid); //2
sb.append("/");
sb.append(Util.formatDate4(new Date(adate)));//20070713
sb.append("/");
sb.append(adate % 100);//餘數 53
sb.append("/");
File ft = new File(sb.toString());
if (!ft.exists()) {
ft.mkdirs();
}
return sb.toString();
}
這裏有個Util:來自com.laoer.bbscs.comm包,裏面有許多格式時間的方法:
public static String formatDateTime(Date date) {
SimpleDateFormat outFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
return outFormat.format(date);
}
public static String formatDate2(Date myDate) {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy/MM/dd");
String strDate = formatter.format(myDate);
return strDate;
}
public static String formatDate3(Date myDate) {
SimpleDateFormat formatter = new SimpleDateFormat("MM-dd HH:mm");
String strDate = formatter.format(myDate);
return strDate;
}
public static String formatDate4(Date myDate) {
SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMdd");
String strDate = formatter.format(myDate);
return strDate;
}//用的是這個囉!
public static String formatDate5(Date myDate) {
String strDate = getYear(myDate) + "-" + getMonth(myDate) + "-" + getDay(myDate);
return strDate;
}
public static String formatDate6(Date myDate) {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm");
String strDate = formatter.format(myDate);
return strDate;
}
而另外一個是文件上傳操作!貼子附件上傳和用戶信息寫入文件兩種:它們都在com.laoer.bbscs.fio中,有三個接口:CommendFileIO,ForumUploadFile,UserInfoFileIO,另外,這個包裏也提供了一個javabean:UploadFile,有兩個上傳文件需要用到的屬性fileName和InputStream類型的inputStream,它們提供了對外實用方法..我們一個一個看它們的實現過程,CommendFileIO是推薦內容,我們曾講過,safe/include/...兩個文件,而本forum用到的是另外兩個:
ForumUploadFile中有
public void saveUploadFile(String toFileName, UploadFile uploadFile, SysConfig sysConfig) throws IOException; //sysConfig用於獲得系統的配置參數!,這裏也用到了UploadFile這個javabean!
public void delUploadFile(Forum f) throws IOException;
public List delUploadFile(Forum f, List fileNames) throws IOException;
public void moveUploadFile(Forum forum, long tobid) throws IOException;
public void delDetailFile(Forum forum) throws IOException;
我們看它的實現,由於實現它是通過spring注入的!
<bean id="userInfoFileIO"
class="com.laoer.bbscs.fio.imp.UserInfoFileIOImp">
<property name="userConfig">
<ref bean="userConfig" />
</property>
<property name="sysConfig">
<ref bean="sysConfig" />
</property>
</bean>
<bean id="forumUploadFile"
class="com.laoer.bbscs.fio.imp.ForumUploadFileImp" />
<bean id="commendFileIO"
class="com.laoer.bbscs.fio.imp.CommendFileIOImp" />
這個類也先使用了forumConfig及其getter/setter!(不過怎麼沒注入呢)我們看其:
public void saveUploadFile(String toFileName, UploadFile uploadFile, SysConfig sysConfig) throws IOException {
OutputStream bos = new FileOutputStream(toFileName);
IOUtils.copy(uploadFile.getInputStream(), bos);
if (sysConfig.isAttachImg(uploadFile.getFileName()) && sysConfig.getReduceAttachImg() == 1) {
ImgUtil.reduceImg(toFileName, toFileName + Constant.IMG_SMALL_FILEPREFIX, sysConfig
.getReduceAttachImgSize(), sysConfig.getReduceAttachImgSize(),1);//縮微圖的生成,同目錄內!public static String IMG_SMALL_FILEPREFIX = "_Small";
}
---------->
public boolean isAttachImg(String fileName) {
return FilenameUtils.isExtension(fileName, getAttachImgTypes());
}
public String[] getAttachImgTypes() {
String[] types = getAttachImgType().split(",");
if (types == null || types.length == 0) { //提供默認值!
types = new String[3];
types[0] = "gif";
types[1] = "jpg";
types[2] = "jpeg";
}
return types;
}
public String getAttachImgType() {
return this.getStringValue("AttachImgType");
}
public int getReduceAttachImg() {
return this.getIntValue("ReduceAttachImg", 1);
}
是圖片且系統允許生成!
public int getReduceAttachImgSize() {
return this.getIntValue("ReduceAttachImgSize", 200);
}//長寬都用這個
注意我們將繼續深入下去:
FilenameUtils是org.apache.common.io下的!而ImgUtil.reduceImg則是com.laoer.bbscs.comm包裏的工具類:(這個類就只有一個方法),我們摘入主要的一段:
public static void reduceImg(String imgsrc, String imgdist, int widthdist, int heightdist, int benchmark) {
// int benchmark說明:0,長寬哪個長，以哪個爲標準；1，以寬爲基準；2，以高爲基準
try {
File srcfile = new File(imgsrc);
if (!srcfile.exists()) {
return;
}
Image src = javax.imageio.ImageIO.read(srcfile);
int width = src.getWidth(null);
int height = src.getHeight(null);
if (width <= widthdist && height <= heightdist) {
// SysUtil.cpoyFile(imgsrc, imgdist);
FileUtils.copyFile(new File(imgsrc), new File(imgdist));
return;
}
// 寬度除以高度的比例
float wh = (float) width / (float) height;
if(benchmark==0) {
...
}
if (benchmark == 1) {
float tmp_heigth = (float) widthdist / wh;
BufferedImage tag = new BufferedImage(widthdist, (int) tmp_heigth, BufferedImage.TYPE_INT_RGB);
tag.getGraphics().drawImage(src, 0, 0, widthdist, (int) tmp_heigth, null);
FileOutputStream out = new FileOutputStream(imgdist);
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
encoder.encode(tag);
out.close();
}
...主要還是BufferedImage和JPEGCodec.createJPEGEncoder!
對於ForumUploadFileImp中的其它方法我們在用到的時候在來考慮之.
好,我們看看UserInfoFileIO的writeUserInfo(ui),對於這個文件的效果見:safe/user目錄下!我們首先注入的是userConfig和sysConfig兩個配置服務!下面是某用戶文件中的內容:
402881e513bdc8550113bdf70a1b0019|1184303089000|1184303117000|0|0|0|0|100|0|0|0|0|-|本機地址|
用戶ID|註冊時間|登錄時間|文章數|精華文章數|用戶頭銜|用戶生命值(不一定)|積分|......|社區幣|是否有相片|(有的話,圖片名,無 爲"-")|(有的話,用戶來自)|
我們看其中的一段代碼:
if (StringUtils.isBlank(userInfo.getUserFrom())) {
sb.append("-");
} else {
sb.append(userInfo.getUserFrom());
}
sb.append("|");
File usrfile = new File(this.getUserConfig().getUserFilePath(userInfo.getId()) + Constant.USER_PROFILE);//public static final String USER_PROFILE = "UserProFile.txt";
FileUtils.writeStringToFile(usrfile, sb.toString(), Constant.CHARSET);
//關於userConfig其實與sysConfig和ForumConfig類似,提供的是簡單的配置方法:
注入了safePath:(以前講過,這裏重複一次)
public String getUserFilePath(String userID) {
StringBuffer sb = new StringBuffer();
int num = Math.abs(userID.hashCode());
sb.append(this.getSafePath());
if (!this.getSafePath().endsWith("/")) {
sb.append("/");
}
sb.append("user/");
sb.append(num % 100);
sb.append("/");
sb.append(userID);
sb.append("/");
File ft = new File(sb.toString());
if (!ft.exists()) {
ft.mkdirs();
}
return sb.toString();
}
好了,看下面的方法:(較長)
public Forum createReForum(Forum forum, Forum mainForum, Board board, UserInfo ui, UploadFile uploadFile,
boolean isQuote) throws BbscsException {
try {
String detail = forum.getDetail();
if (board.getAuditPost() == 0) { // 不需要審覈
mainForum.setLastPostNickName(forum.getNickName());
mainForum.setLastPostTitle(forum.getTitle());
mainForum.setLastPostUserName(forum.getUserName());
mainForum.setLastTime(forum.getPostTime());
mainForum.setReNum(mainForum.getReNum() + 1);//加入回覆數
if (forum.getParentID().equals(forum.getMainID())) { // 回覆的是主帖
if (mainForum.getCanNotRe() == 0) {
mainForum.setCanNotRe(1);//已經回覆
}
if (isQuote) {
forum.setQuoteEditType(mainForum.getEditType());//引用編輯類型!
if (this.getSysConfig().getQuoteMaxSize() > 0) {// public int getQuoteMaxSize() {
return this.getIntValue("QuoteMaxSize", 300);
}
forum.setQuoteText(BBSCSUtil.getSpeShortString(this.getForumDetail(mainForum, false), this
.getSysConfig().getQuoteMaxSize(), "..."));
/**
public String getForumDetail(Forum forum, boolean forcefromfile) {
if (Constant.POST_STORAGE_MODE == 0) {
return forum.getDetail();//直接從對象得到!
} else {
if (forcefromfile) {
return this.getForumDetailFromFile(forum);//從文件來
} else {//從Cache來
String detail = (String) this.getPostCache().get(forum.getId());
if (detail == null) {//沒有的話,從文件來
detail = this.getForumDetailFromFile(forum);
if (StringUtils.isNotBlank(detail)) {
postCache.add(forum.getId(), detail);
}
}
return detail;
}
}
}
注意這裏用了一個私有方法:
private String getForumDetailFromFile(Forum forum) {
File postFile = new File(forumConfig.getForumPath(forum.getBoardID(), forum.getPostTime()) + forum.getDetail());
try {
return FileUtils.readFileToString(postFile, Constant.CHARSET);//把文件寫成字符串!
} catch (IOException e) {
logger.error(e);
return "";
}
}
這裏用了BBSCSUtil工具類,用於截取一定長度的引用文本內容!
public static String getSpeShortString(String s, int len, String fillstr) {
int ilen = Math.max(0, len - fillstr.length());300-3=297!0與它比較之
char ch = ' '
int reallen = 0;
for (int i = 0; i < s.length(); i++) {
ch = s.charAt(i);
if (((int) ch > 32) && ((int) ch < 128)) { //Ascill
reallen++;
} else {
reallen += 2;
}
}
if (reallen <= len) {
return s;
}
StringBuffer buf = new StringBuffer();
reallen = 0;
for (int i = 0; i < s.length(); i++) {
ch = s.charAt(i);
buf.append(ch);
if (((int) ch > 32) && ((int) ch < 128)) {
reallen++;
} else {
reallen += 2;
}
if (reallen >= ilen) {
return buf.append(fillstr).toString();
}
}
return buf.toString();
}
*/
} else {
forum.setQuoteText(this.getForumDetail(mainForum, false));
}
}
}
} else { //需要審覈帖子!!!!
mainForum.setLastPostTitle(forum.getTitle());
mainForum.setLastTime(forum.getPostTime());//不加入回覆數
if (forum.getParentID().equals(forum.getMainID())) { // 回覆的是主帖
if (isQuote) {
forum.setQuoteEditType(mainForum.getEditType());
if (this.getSysConfig().getQuoteMaxSize() > 0) {
forum.setQuoteText(BBSCSUtil.getSpeShortString(this.getForumDetail(mainForum, false), this
.getSysConfig().getQuoteMaxSize(), "..."));
} else {
forum.setQuoteText(this.getForumDetail(mainForum, false));
}
}
}
}//結束了大的if!注意兩者由於主貼有特別的edittype,纔對mainForum進行操作!
mainForum = this.getForumDAO().saveOrUpdateForum(mainForum);//更新
if (mainForum.getReNum() == this.getSysConfig().getForumHotRes()) { // 回覆次數達到熱貼標準,增加發帖人人緣係數
UserInfo mui = this.getUserInfoDAO().findUserInfoById(mainForum.getUserID());
if (mui != null) {
mui.setUserKnow(mui.getUserKnow() + 1);
this.getUserInfoDAO().saveUserInfo(mui);
this.getUserInfoFileIO().writeUserFile(mui);
}//更新用戶信息
}
Forum reForum = mainForum;//假的!
if (!forum.getParentID().equals(forum.getMainID())) { // 回覆的不是主帖
reForum = this.getForumDAO().findForumByID(forum.getParentID(), forum.getBoardID());
if (reForum != null) {
if (reForum.getCanNotRe() == 0) {
reForum.setCanNotRe(1);
reForum = this.getForumDAO().saveOrUpdateForum(reForum);//保存真正所回覆的帖子信息!
}
if (isQuote) {
forum.setQuoteEditType(reForum.getEditType());
String reDetail = this.getForumDetail(reForum, false);
if (this.getSysConfig().getQuoteMaxSize() > 0) {
forum.setQuoteText(BBSCSUtil.getSpeShortString(reDetail, this.getSysConfig()
.getQuoteMaxSize(), "..."));
} else {
forum.setQuoteText(reDetail);
}
}
}
}
// 處理文章標題
if (forum.getTitle().equalsIgnoreCase(Constant.RE)) {
if (reForum != null) {
if (reForum.getTitle().startsWith(Constant.RE)) {
forum.setTitle(reForum.getTitle());//如果主貼有re:,則回貼一致有!
} else {
if (BBSCSUtil.getSysCharsetStrLength(Constant.RE + reForum.getTitle()) > 90)
/**
public static int getSysCharsetStrLength(String txt) {
try {
return txt.getBytes(Constant.CHARSET).length;
} catch (UnsupportedEncodingException ex) {
return txt.length();
}
}
*/
{
forum.setTitle(reForum.getTitle());
} else {
forum.setTitle(Constant.RE + reForum.getTitle());
}
}
}
}
forum = this.getForumDAO().saveOrUpdateForum(forum);//更新下回貼!
//下面是附件的操作!
if (Constant.POST_STORAGE_MODE == 0) {
if (uploadFile != null) {
String fileName = "File_" + forum.getId() + "_" + System.currentTimeMillis() + "."
+ FilenameUtils.getExtension(uploadFile.getFileName());
String toFilePath = BBSCSUtil.getUpFilePath(forum.getBoardID(), forum.getPostTime());
this.getForumUploadFile().saveUploadFile(toFilePath + fileName, uploadFile, this.getSysConfig());
forum.setHaveAttachFile(1);
forum.getAttachFileName().add(fileName);
forum = this.getForumDAO().saveOrUpdateForum(forum);
}
} else {
if (uploadFile != null) {
String fileName = "File_" + forum.getId() + "_" + System.currentTimeMillis() + "."
+ FilenameUtils.getExtension(uploadFile.getFileName());
String toFilePath = BBSCSUtil.getUpFilePath(forum.getBoardID(), forum.getPostTime());
this.getForumUploadFile().saveUploadFile(toFilePath + fileName, uploadFile, this.getSysConfig());
forum.setHaveAttachFile(1);
forum.getAttachFileName().add(fileName);
}
String postFileName = "P_" + forum.getBoardID() + "_" + forum.getId() + ".txt";
File postFile = new File(this.getForumConfig().getForumPath(forum.getBoardID(), forum.getPostTime())
+ postFileName);
FileUtils.writeStringToFile(postFile, detail, Constant.CHARSET);
forum.setDetail(postFileName);
forum = this.getForumDAO().saveOrUpdateForum(forum);
}
if (board.getAuditPost() == 0 && board.getAddUserPostNum() == 1) { // 不需要審覈,並且版區爲增加用戶發帖數量
ui.setArticleNum(ui.getArticleNum() + 1);
ui.setExperience(ui.getExperience() + 1); // 回帖增加經驗值1點。
ui = this.getUserInfoDAO().saveUserInfo(ui);
this.getUserInfoFileIO().writeUserFile(ui);//寫入用戶文件!
}
if (forum.getEmailInform() != 0 || forum.getMsgInform() != 0) {
Subscibe subs = this.getSubscibeFactory().getInstance(forum.getBoardID());
subs.setBoardID(forum.getBoardID());
subs.setCreateTime(new Date());
subs.setEmailinform(forum.getEmailInform());
subs.setMsginform(forum.getMsgInform());
subs.setNickName(ui.getNickName());
subs.setPostID(forum.getId());
subs.setPostTitle(forum.getTitle());
subs.setUserEmail(ui.getEmail());
subs.setUserID(ui.getId());
subs.setUserName(ui.getUserName());
subs.setUserLocale(ui.getUserLocale());
this.getSubscibeDAO().saveSubscibe(subs);
}
this.getSubscibeQueue().add(forum);
/**加入隊列中!是一個同步訪問方法:
public synchronized void add(Object o) {
aVector.add(o);
}
*/
return forum;
} catch (Exception ex) {
logger.error(ex);
throw new BbscsException(ex);
}
}
這個時候,讓我們回顧一下applicationContext.xml中的內容:
<bean id="forumServiceTarget"
class="com.laoer.bbscs.service.imp.ForumServiceImp">
<property name="forumDAO">
<ref local="forumMainDAO" />
</property>
<property name="userInfoDAO">
<ref local="userInfoDAO" />
</property>
<property name="forumUploadFile">
<ref local="forumUploadFile" />
</property>
<property name="sysListObjCache">
<ref local="sysListObjCache" />
</property>
<property name="sysConfig">
<ref local="sysConfig" />
</property>
<property name="userInfoFileIO">
<ref local="userInfoFileIO" />
</property>
<property name="subscibeFactory">
<ref local="subscibeFactory" />
</property>
<property name="subscibeDAO">
<ref local="subscibeDAO" />
</property>
<property name="boardDAO">
<ref local="boardDAO" />
</property>
<property name="subscibeQueue">
<ref local="subscibeQueue" />
</property>
<property name="forumBuyDAO">
<ref local="forumBuyDAO" />
</property>
<property name="voteDAO">
<ref local="voteDAO" />
</property>
<property name="voteItemDAO">
<ref local="voteItemDAO" />
</property>
<property name="commendDAO">
<ref local="commendDAO" />
</property>
<property name="commendFileIO">
<ref local="commendFileIO" />
</property>
<property name="forumHistoryDAO">
<ref local="forumHistoryDAO" />
</property>
<property name="forumConfig">
<ref local="forumConfig" />
</property>
<property name="postCache">
<ref local="postCache" />
</property>
</bean>
OK!Go On!下面是創建投票帖子的,省略了後面的部分!
public Forum createVoteForum(Forum forum, Board board, Vote vote, UserInfo ui, String voteItem)
throws BbscsException {
try {
String[] details = voteItem.split(" ");//投票項字符串數組!
vote = this.getVoteDAO().saveVote(vote);//Vote保存!
for (int i = 0; i < details.length; i++) {
VoteItem vi = new VoteItem();
vi.setItem(details[i]);
vi.setItemValue(0);
vi.setVoteID(vote.getId());
this.getVoteItemDAO().saveVoteItem(vi);//VoteItem保存
}
forum.setVoteID(vote.getId());
forum = this.getForumDAO().saveOrUpdateForum(forum);
forum.setMainID(forum.getId());
forum = this.getForumDAO().saveOrUpdateForum(forum);//帖子保存
....
下面這個是刪除真實帖子的文件及從數據庫中把數據刪除之!
public void delPostReal(Forum forum) throws BbscsException {
try {
if (Constant.POST_STORAGE_MODE == 1) {
this.getForumUploadFile().delDetailFile(forum);
}
this.getForumUploadFile().delUploadFile(forum);
this.getForumDAO().removeForum(forum);
} catch (Exception ex) {
logger.error(ex);
throw new BbscsException(ex);
}
}
其中,由delDetailFile刪除帖子內容文件,delUploadFile刪除附件文件!
public void delDetailFile(Forum forum) throws IOException {
File postFile = new File(this.getForumConfig().getForumPath(forum.getBoardID(), forum.getPostTime())
+ forum.getDetail());
if (postFile.exists()) {
FileUtils.forceDelete(postFile);
}
}
public void delUploadFile(Forum f) throws IOException {
if (f.getHaveAttachFile() == 1 && f.getAttachFileName() != null && f.getAttachFileName().size() > 0) {
List fl = f.getAttachFileName();
String filePath = BBSCSUtil.getUpFilePath(f.getBoardID(), f.getPostTime());
for (int i = 0; i < fl.size(); i++) {
File attachFile = new File(filePath + (String) fl.get(i));
if (attachFile.exists()) {
FileUtils.forceDelete(attachFile);
}
File attachFileSmall = new File(filePath + (String) fl.get(i) + Constant.IMG_SMALL_FILEPREFIX);
if (attachFileSmall.exists()) {
FileUtils.forceDelete(attachFileSmall);
}
}
}
}
接下來,看下複雜的方法:(delaPost(Forum forum,Board board,UserInfo ui)差不多!
public void delPosts(List forums, Board board) throws BbscsException {
for (int i = 0; i < forums.size(); i++) {
try {
Forum forum = (Forum) forums.get(i);
if (forum.getAuditing() == 0) { // 如果已近是通過審覈的帖子
forum = this.getForumDAO().saveOrUpdateForum(forum); // 保存標註刪除，包括刪除人、時間等信息 ????
if (forum.getIsNew() != 1) { // 如果不是主帖
Forum mainForum = this.getForumDAO().findForumByID(forum.getMainID(), forum.getBoardID()); // 取主帖
if (mainForum != null) {
mainForum.setReNum(mainForum.getReNum() - 1); // 減少主帖回覆數
if (mainForum.getLastTime() == forum.getPostTime()) { // 如果刪除的是最後一個回覆帖，要修正主帖表中最後回覆人和時間
OrderObj[] oo = { new OrderObj("postTime", Constant.ORDER_DESC) };//查詢條件吧!OrderObj是com.laoer.bbscs.comm裏面的一個javaBean類,它有兩個屬性orderBy和ascOrDesc=Constant.ORDER_DESC;
/**
public OrderObj(String orderBy, int ascOrDesc) {
this.orderBy = orderBy;
this.ascOrDesc = ascOrDesc;
}
*/
List l = this.getForumDAO().findForumsTopic(mainForum.getBoardID(), mainForum.getId(),
0, 0, oo, 0, 1);//參見DAO!!!
if (l != null && !l.isEmpty()) {
Forum lastF = (Forum) l.get(0);
mainForum.setLastPostNickName(lastF.getNickName());
mainForum.setLastPostTitle(lastF.getTitle());
mainForum.setLastPostUserName(lastF.getUserName());
mainForum.setLastTime(lastF.getPostTime());
}
}
this.getForumDAO().saveOrUpdateForum(mainForum); // 保存主帖
}
}
UserInfo ui = this.getUserInfoDAO().findUserInfoById(forum.getUserID());
if (board.getAddUserPostNum() == 1 && ui != null) { // 版區爲增加用戶發帖數量
if (ui.getArticleNum() > 0) {
ui.setArticleNum(ui.getArticleNum() - 1); // 減少用戶發帖數
ui = this.getUserInfoDAO().saveUserInfo(ui);
this.getUserInfoFileIO().writeUserFile(ui);
}
if (forum.getIsNew() == 1) {
ui.setExperience(ui.getExperience() - 2); // 主帖，扣除發帖人2點經驗值
} else {
ui.setExperience(ui.getExperience() - 1); // 回帖，扣除發帖人1點經驗值
}
}
if (forum.getElite() != 0 || forum.getCommend() != 0) { // 如果是精華或推薦
if (forum.getElite() != 0) {
if (ui.getArticleEliteNum() >= 1) {
ui.setArticleEliteNum(ui.getArticleEliteNum() - 1);
} else {
ui.setArticleEliteNum(0);
}
ui.setLiterary(ui.getLiterary() - 3);
}
if (forum.getCommend() != 0) {
ui.setLiterary(ui.getLiterary() - 1);
this.getCommendDAO().removeCommend(forum.getId());
}
ui = this.getUserInfoDAO().saveUserInfo(ui);
this.getUserInfoFileIO().writeUserFile(ui);
}
if (forum.getIsNew() == 1) { // 如果是主帖，嘗試從新帖Cache中清除,只有主貼才從Cache去之
this.getSysListObjCache().remove(Constant.FORUM_NEW_CACHE_NAME);
}
} else { // 如果是尚未審覈
forum = this.getForumDAO().saveOrUpdateForum(forum); // 保存標註刪除，包括刪除人、時間等信息
}
} catch (Exception ex) {
logger.error(ex);
throw new BbscsException(ex);
}
}
}
另外:
public void delPostsReal(List ids) throws BbscsException {
List forums = this.getForumDAO().findForumsInIds(ids);
for (int i = 0; i < forums.size(); i++) {
Forum forum = (Forum) forums.get(i);
if ((System.currentTimeMillis() - forum.getDelTime()) > 7 * 24 * 3600 * 1000) {//大於7天就真正刪除哦!
try {
if (Constant.POST_STORAGE_MODE == 1) {
this.getForumUploadFile().delDetailFile(forum);
}
this.getForumUploadFile().delUploadFile(forum);
this.getForumDAO().removeForum(forum);
} catch (Exception ex) {
logger.error(ex);
throw new BbscsException(ex);
}
}
}
}
看個查找生成分頁列表的兩個方法:
public PageList findForums(long bid, int isNew, int delSign, int auditing, int auditingAttachFile, OrderObj[] oo,
Pages pages) {
PageList pl = new PageList();
if (pages.getTotalNum() == -1) {
pages.setTotalNum(this.getForumDAO().getForumNum(bid, isNew, delSign, auditing, auditingAttachFile));
}
pages.executeCount();
List l = this.getForumDAO().findForums(bid, isNew, delSign, auditing, auditingAttachFile, oo, pages.getSpage(),
pages.getPerPageNum());
pl.setObjectList(l);
pl.setPages(pages);
return pl;
}
public PageList findForumsAll(long bid, Pages pages) {
OrderObj oo0 = new OrderObj("isTop", Constant.ORDER_DESC);
OrderObj oo1 = new OrderObj("lastTime", Constant.ORDER_DESC);
OrderObj[] oo = { oo0, oo1 };
return this.findForums(bid, -1, 0, 0, -1, oo, pages);
}
還有重載的方法:
public List findForumsAllNew(int num) {
OrderObj[] oo = { new OrderObj("postTime", Constant.ORDER_DESC) };
return this.getForumDAO().findForums(-1, 1, 0, 0, -1, oo, 0, num);
}
public List findForumsAllNewCache(int num) {
List l = (List) this.getSysListObjCache().get(Constant.FORUM_NEW_CACHE_NAME);
if (l == null) {
OrderObj[] oo = { new OrderObj("postTime", Constant.ORDER_DESC) };
l = this.getForumDAO().findForums(-1, 1, 0, 0, -1, oo, 0, num);
this.getSysListObjCache().add(Constant.FORUM_NEW_CACHE_NAME, l);
}
return l;
}
下面是恢復帖子方法:
public void saveForumsResume(List ids, Board board) throws BbscsException {
List forums = this.getForumDAO().findForumsInIds(ids);
for (int i = 0; i < forums.size(); i++) {
Forum forum = (Forum) forums.get(i);
if (forum.getAuditing() == 0) { // 已通過審覈的帖子恢復
forum.setDelSign(0);
if (forum.getIndexStatus() == Constant.INDEX_STATUS_NO_INDEX_TO_DEL) {
forum.setIndexStatus(Constant.INDEX_STATUS_NO_INDEX);
} else if (forum.getIndexStatus() == Constant.INDEX_STATUS_DELED) {
forum.setIndexStatus(Constant.INDEX_STATUS_NO_INDEX);
}
try {
this.getForumDAO().saveOrUpdateForum(forum);
if (!forum.getId().equals(forum.getMainID())) {
Forum mainForum = this.getForumDAO().findForumByID(forum.getMainID(), forum.getBoardID());
if (mainForum != null) { //mainForum修改
mainForum.setReNum(mainForum.getReNum() + 1);
this.getForumDAO().saveOrUpdateForum(mainForum);
}
}
if (board.getAddUserPostNum() == 1) {
UserInfo ui = this.getUserInfoDAO().findUserInfoById(forum.getUserID());
if (ui != null) {//用戶信息修改
ui.setArticleNum(ui.getArticleNum() + 1);
if (forum.getIsNew() == 1) {
ui.setExperience(ui.getExperience() + 2); // 主帖增加2點經驗值
} else {
ui.setExperience(ui.getExperience() + 1); // 回帖增加1點經驗值
}
ui = this.getUserInfoDAO().saveUserInfo(ui);
this.getUserInfoFileIO().writeUserFile(ui);
}
}
} catch (Exception ex) {
logger.error(ex);
throw new BbscsException(ex);
}
} else { // 未通過審覈的被刪除的帖子恢復
forum.setDelSign(0);
try {
this.getForumDAO().saveOrUpdateForum(forum);
} catch (Exception ex1) {
logger.error(ex1);
throw new BbscsException(ex1);
}
}
}
}
public static final int INDEX_STATUS_NO_INDEX = 0;
public static final int INDEX_STATUS_INDEXED = 1;
public static final int INDEX_STATUS_NEED_UPDTAE = 2;
public static final int INDEX_STATUS_NEED_DEL = 3;
public static final int INDEX_STATUS_DELED = 4;
public static final int INDEX_STATUS_NO_INDEX_TO_DEL = 5;
public static final int INDEX_STATUS_UPDATE_TO_DEL = 6;
對於其它類似,不在繼續下去了!我們將直接看DAO的實現層:(由於DAO層簡單,下面只是列出我個人認爲較有代表性的方法)
public List findForums(final long bid, final int isNew, final int delSign, final int auditing, final OrderObj[] oo) {//參數爲-1,表示此項忽略,否則爲增加相應的條件
return getHibernateTemplate().executeFind(new HibernateCallback() {
public Object doInHibernate(Session s) throws HibernateException {
Criteria c = s.createCriteria(getForumClass());
if (bid != -1) {
c.add(Restrictions.eq("boardID", new Long(bid)));
}
if (isNew != -1) {
c.add(Restrictions.eq("isNew", new Integer(isNew)));
}
if (delSign != -1) {
c.add(Restrictions.eq("delSign", new Integer(delSign)));
}
if (auditing != -1) {
c.add(Restrictions.eq("auditing", new Integer(auditing)));
}
if (oo != null && oo.length > 0) {
for (int i = 0; i < oo.length; i++) {
if (StringUtils.isNotBlank(oo[i].getOrderBy())) {
if (oo[i].getAscOrDesc() == Constant.ORDER_ASC) {
c.addOrder(Order.asc(oo[i].getOrderBy()));//Order序!!!
}
if (oo[i].getAscOrDesc() == Constant.ORDER_DESC) {
c.addOrder(Order.desc(oo[i].getOrderBy()));
}
}
}
}
return c.list();
}
});
}
public List findForumsElite(long bid, long elite, long eliteId) {
Object[] o = { new Long(bid), new Long(elite), new Long(eliteId), new Integer(0) };
String sql = "from " + this.getObjName() + " where boardID = ? and elite = ? and eliteID = ? and delSign = ?";
return this.getHibernateTemplate().find(sql, o);
}
/**
private String getObjName() {
return "Forum" + this.flag;
}
private String flag = "Main";
*/
public List findForumsRealDelAll(long bid, long atime) {
Object[] o = { new Long(bid), new Long(atime) };
String sql = "from " + this.getObjName() + " where boardID = ? and delSign = 1 and delTime < ?";
return this.getHibernateTemplate().find(sql, o);
}
public List findForumsToHistory(long atime) {
String sql = "from ForumMain where isNew = 1 and elite = 0 and lastTime <= ?";
return this.getHibernateTemplate().find(sql, new Long(atime));
}
public long getForumNumHotTopic(long bid, int reNum, int click) {
Object[] o = { new Long(bid), new Integer(1), new Integer(0), new Integer(0), new Integer(reNum),
new Integer(click) };
String sql = "select count(id) from " + this.getObjName()
+ " where boardID = ? and isNew = ? and delSign = ? and auditing = ? and (reNum >= ? or click >= ?)";
List l = this.getHibernateTemplate().find(sql, o);
if (l == null || l.isEmpty()) {
return 0;
} else {
return ((Long) l.get(0)).longValue();
}
}
下面是一個關於搜索帖子的方法:
public List getSearchList(final long bid, final String con, final String text, final int delSign,
final int auditing, final String orderby, final int ascOrDesc, final int firstResult, final int maxResults) {
return getHibernateTemplate().executeFind(new HibernateCallback() {
public Object doInHibernate(Session s) throws HibernateException {
Criteria c = s.createCriteria(getForumClass());
c.add(Restrictions.eq("boardID", new Long(bid)));
c.add(Restrictions.like(con, "%" + text + "%"));
if (delSign != -1) {
c.add(Restrictions.eq("delSign", new Integer(delSign)));
}
if (auditing != -1) {
c.add(Restrictions.eq("auditing", new Integer(auditing)));
}
if (StringUtils.isNotBlank(orderby)) {
if (ascOrDesc == Constant.ORDER_ASC) {
c.addOrder(Order.asc(orderby));
}
if (ascOrDesc == Constant.ORDER_DESC) {
c.addOrder(Order.desc(orderby));
}
}
c.setFirstResult(firstResult);
c.setMaxResults(maxResults);
return c.list();
}
});
}
其它的省略之!已經將主要的Forum服務給分析完了.OK!