Compass學習文檔(3) (轉)

下面講一下高級部分Compass與Hibernate，Spring的集成。Compass內部有對Hibernate,Spring的支持，如果配置好了，可以在建立和更新索引的時候不用Compass寫一句代碼。爽吧！～不過集成它們比較麻煩那就看我一步一步的來吧：
1.首先把Hibernate和Spring集成：

來個例子吧，先看數據庫腳本(MySql)：

Sql代碼

CREATE TABLE `article` (
`Id` int(11) NOT NULL auto_increment,
`title` varchar(40) NOT NULL default '',
`author` int(11) default '0',
`publish_date` date NOT NULL default '0000-00-00',
PRIMARY KEY (`Id`)
) TYPE=MyISAM;
CREATE TABLE `author` (
`Id` int(11) NOT NULL auto_increment,
`username` varchar(20) NOT NULL default '',
`password` varchar(20) NOT NULL default '',
`age` smallint(6) default '0',
PRIMARY KEY (`Id`)
) TYPE=MyISAM;

CREATE TABLE `article` (

 `Id` int(11) NOT NULL auto_increment,

 `title` varchar(40) NOT NULL default '',

 `author` int(11) default '0',

 `publish_date` date NOT NULL default '0000-00-00',

 PRIMARY KEY (`Id`)

) TYPE=MyISAM;

 

CREATE TABLE `author` (

 `Id` int(11) NOT NULL auto_increment,

 `username` varchar(20) NOT NULL default '',

 `password` varchar(20) NOT NULL default '',

 `age` smallint(6) default '0',

 PRIMARY KEY (`Id`)

) TYPE=MyISAM;

建立一個工程叫CompassHibernateSpring

說明一下開發環境：eclipse3.2+myeclipse5.0+springtide+middlegen(注意要在工程上加入MyEcilpse的Hibernate和Spring能力。

然後用Hibernate進行裝配，Hibernate有三個配置文件：hibernate.cfg.xml, Article.hbm.xml,Author.hbm.xml

具體的結構請看Hibernate.cfg.xml:

Xml代碼

<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.username">root</property>
<property name="connection.password">java</property>
<property name="connection.url">jdbc:mysql://localhost:3306/test</property>
<property name="show_sql">true</property>
<mapping resource="org/li/compass/shibernate/Article.hbm.xml" />
<mapping resource="org/li/compass/shibernate/Author.hbm.xml" />
</session-factory>
</hibernate-configuration>
Article.hbm.xml:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
<hibernate-mapping>
<!--
Created by the Middlegen Hibernate plugin 2.2
http://boss.bekk.no/boss/middlegen/
http://www.hibernate.org/
-->
<class
name="org.li.compass.shibernate.Article"
table="article"
lazy="false"
>
<id
name="id"
type="java.lang.Integer"
column="Id"
>
<meta attribute="field-description" inherit="false">
auto_increment
</meta>
<generator class="increment" />
</id>
<property
name="title"
type="java.lang.String"
column="title"
not-null="true"
length="40"
/>
<property
name="author"
type="java.lang.String"
column="author"
length="11"
/>
<property
name="publishDate"
type="java.util.Date"
column="publish_date"
not-null="true"
length="10"
/>
</class>
</hibernate-mapping>
Author.hbm.xml:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
<hibernate-mapping>
<!--
Created by the Middlegen Hibernate plugin 2.2
http://boss.bekk.no/boss/middlegen/
http://www.hibernate.org/
-->
<class
name="org.li.compass.shibernate.Author"
table="author"
lazy="false"
>
<id
name="id"
type="java.lang.Integer"
column="Id"
>
<meta attribute="field-description" inherit="false">
auto_increment
</meta>
<generator class="increment" />
</id>
<property
name="username"
type="java.lang.String"
column="username"
not-null="true"
length="20"
/>
<property
name="password"
type="java.lang.String"
column="password"
not-null="true"
length="20"
/>
<property
name="age"
type="java.lang.Short"
column="age"
length="6"
/>
</class>
</hibernate-mapping>

<?xml version='1.0' encoding='utf-8'?>

<!DOCTYPE hibernate-configuration PUBLIC 

    "-//Hibernate/Hibernate Configuration DTD//EN"

    "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>

    <session-factory>

        <property name="dialect">org.hibernate.dialect.MySQLDialect</property>

        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>

        <property name="connection.username">root</property>

        <property name="connection.password">java</property>

        <property name="connection.url">jdbc:mysql://localhost:3306/test</property>

        <property name="show_sql">true</property>

        <mapping resource="org/li/compass/shibernate/Article.hbm.xml" />

        <mapping resource="org/li/compass/shibernate/Author.hbm.xml" />

    </session-factory>

</hibernate-configuration>

Article.hbm.xml:

<?xml version="1.0"?>

<!DOCTYPE hibernate-mapping PUBLIC

    "-//Hibernate/Hibernate Mapping DTD 3.0//EN"

    "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >

<hibernate-mapping>

<!-- 

    Created by the Middlegen Hibernate plugin 2.2

    http://boss.bekk.no/boss/middlegen/

    http://www.hibernate.org/

-->

<class 

    name="org.li.compass.shibernate.Article" 

    table="article"

    lazy="false"

> 

    <id

        name="id"

        type="java.lang.Integer"

        column="Id"

    >

            <meta attribute="field-description" inherit="false">

               auto_increment

            </meta>

        <generator class="increment" />

    </id>

    <property

        name="title"

        type="java.lang.String"

        column="title"

        not-null="true"

        length="40"

    />

    <property

        name="author"

        type="java.lang.String"

        column="author"

        length="11"

    />

    <property

        name="publishDate"

        type="java.util.Date"

        column="publish_date"

        not-null="true"

        length="10"

    />

    <!-- Associations -->

 

</class>

</hibernate-mapping>

Author.hbm.xml:

<?xml version="1.0"?>

<!DOCTYPE hibernate-mapping PUBLIC

    "-//Hibernate/Hibernate Mapping DTD 3.0//EN"

    "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >

<hibernate-mapping>

<!-- 

    Created by the Middlegen Hibernate plugin 2.2

    http://boss.bekk.no/boss/middlegen/

    http://www.hibernate.org/

-->

<class 

    name="org.li.compass.shibernate.Author" 

    table="author"

    lazy="false"

> 

    <id

        name="id"

        type="java.lang.Integer"

        column="Id"

    >

            <meta attribute="field-description" inherit="false">

               auto_increment

            </meta>

    

        <generator class="increment" />

    </id>

    <property

        name="username"

        type="java.lang.String"

        column="username"

        not-null="true"

        length="20"

    />

    <property

        name="password"

        type="java.lang.String"

        column="password"

        not-null="true"

        length="20"

    />

    <property

        name="age"

        type="java.lang.Short"

        column="age"

        length="6"

    />

    <!-- Associations -->


</class>

</hibernate-mapping>

具本的POJO類看源代碼吧：

由於這裏是講Compass的，有關Hibernate和Spring的內容網上很多中文資料的這裏就不介紹了。

下面講的是跟着我一步一步用Spring把Hibernate和Compass集成起來。

在applicationContext.xml中：

Xml代碼

<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource">
<ref local="dataSource" />
</property>
<property name="hibernateProperties">
<props>
<prop key="dialect">
org.hibernate.dialect.MySQLDialect
</prop>
<prop key="show_sql">true</prop>
</props>
</property>
<property name="mappingDirectoryLocations">
<list>
<value>org/li/compass/shibernate</value>
</list>
</property>
</bean>
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName">
<value>com.mysql.jdbc.Driver</value>
</property>
<property name="url">
<value>jdbc:mysql://localhost:3306/test</value>
</property>
<property name="username">
<value>root</value>
</property>
<property name="password">
<value>java</value>
</property>
</bean>
<bean id="hibernateTemplate"
class="org.springframework.orm.hibernate3.HibernateTemplate">
<property name="sessionFactory">
<ref local="sessionFactory" />
</property>
</bean>
<bean id="articleDAO" class="org.li.compass.shibernate.dao.ArticleDAO">
<property name="hibernateTemplate">
<ref local="hibernateTemplate"/>
</property>
</bean>
<bean id="authorDAO" class="org.li.compass.shibernate.dao.AuthorDAO">
<property name="hibernateTemplate">
<ref local="hibernateTemplate"/>
</property>
</bean>
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory">
<ref local="sessionFactory" />
</property>
</bean>

<bean id="sessionFactory"

        class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">

        <property name="dataSource">

            <ref local="dataSource" />

        </property>

        <property name="hibernateProperties">

            <props>

                <prop key="dialect">

                    org.hibernate.dialect.MySQLDialect

                </prop>

                <prop key="show_sql">true</prop>

            </props>

        </property>

        <property name="mappingDirectoryLocations">

            <list>

                <value>org/li/compass/shibernate</value>

            </list>

        </property>

    </bean>

<bean id="dataSource"

        class="org.springframework.jdbc.datasource.DriverManagerDataSource">

        <property name="driverClassName">

            <value>com.mysql.jdbc.Driver</value>

        </property>

        <property name="url">

            <value>jdbc:mysql://localhost:3306/test</value>

        </property>

        <property name="username">

            <value>root</value>

        </property>

        <property name="password">

            <value>java</value>

        </property>

    </bean>

    <bean id="hibernateTemplate"

        class="org.springframework.orm.hibernate3.HibernateTemplate">

        <property name="sessionFactory">

            <ref local="sessionFactory" />

        </property>

    </bean>

<bean id="articleDAO" class="org.li.compass.shibernate.dao.ArticleDAO">

        <property name="hibernateTemplate">

            <ref local="hibernateTemplate"/>

        </property>

    </bean>

    <bean id="authorDAO" class="org.li.compass.shibernate.dao.AuthorDAO">

        <property name="hibernateTemplate">

            <ref local="hibernateTemplate"/>

        </property>

    </bean>

<bean id="transactionManager"

        class="org.springframework.orm.hibernate3.HibernateTransactionManager">

        <property name="sessionFactory">

            <ref local="sessionFactory" />

        </property>

    </bean>

以上的配置是將Spring和Hibernate集成起來。

下面我們將加入Compass的配置：

由於我們只對文章進行搜索所以只對文章建立索引

Article.cpm.xml:

Xml代碼

<!DOCTYPE compass-core-mapping PUBLIC
"-//Compass/Compass Core Mapping DTD 1.0//EN"
"http://www.opensymphony.com/compass/dtd/compass-core-mapping.dtd">
<compass-core-mapping package="org.li.compass.shibernate">
<class name="Article" alias="article">
<id name="id"/>
<constant>
<meta-data>type</meta-data>
<meta-data-value>java</meta-data-value>
</constant>
<property name="title">
<meta-data>titleIndex</meta-data>
</property>
<property name="publishDate">
<meta-data>publishDateIndex</meta-data>
</property>
<property name="author">
<meta-data>author</meta-data>
</property>
</class>
</compass-core-mapping>

<!DOCTYPE compass-core-mapping PUBLIC 

    "-//Compass/Compass Core Mapping DTD 1.0//EN"

    "http://www.opensymphony.com/compass/dtd/compass-core-mapping.dtd">

<compass-core-mapping package="org.li.compass.shibernate">

    <class name="Article" alias="article">

        <!-- 這是必須有的 -->

        <id name="id"/>

        <!-- 你可以通過這個配置來在底層給這個對象加一個Field("type","java") -->

        <constant>

            <meta-data>type</meta-data>

            <meta-data-value>java</meta-data-value>

        </constant>

        <!-- 配置一下屬性 -->

        <property name="title">

            <meta-data>titleIndex</meta-data>

        </property>

        <property name="publishDate">

            <meta-data>publishDateIndex</meta-data>

        </property>

        <property name="author">

            <meta-data>author</meta-data>

        </property>

    </class>

</compass-core-mapping>

然後回到applicationContext.xml裏：

看看怎麼集成的，在Compass中有個org.compass.gps.impl.SingleCompassGps是對Compass進行實時更新的，而org.compass.spring.device.hibernate.SpringHibernate3GpsDevice

它是和Hibernate集成並且對Hibernate的insert,delete,update進行自動的更新，所以說這樣就不

我們爲Compass寫一句代碼了。不過這兩個類對Compass和Hibernate的實時功能也可以用Spring的AOP來實現（這裏也不討論了）。剩下的就是用Spring的IoC來支Compass的初始化功能進行注入，第一個是：

Xml代碼

<bean id="compassConfiguration"
class="org.compass.core.config.CompassConfiguration" />

<bean id="compassConfiguration"

        class="org.compass.core.config.CompassConfiguration" />

第二個是：

Xml代碼

<bean id="compass" class="org.compass.spring.LocalCompassBean">
<property name="classMappings">
<list>
<value>org.li.compass.shibernate.Article</value>
</list>
</property>
<property name="resourceDirectoryLocations">
<list>
<value>org/li/compass/shibernate</value>
</list>
</property>
<property name="compassConfiguration"
ref="compassConfiguration" />
<property name="compassSettings">
<props>
<prop key="compass.engine.connection">target/test</prop>
<prop key="compass.transaction.factory">
org.compass.spring.transaction.SpringSyncTransactionFactory
</prop>
</props>
</property>
<property name="transactionManager" ref="transactionManager" />
</bean>

<bean id="compass" class="org.compass.spring.LocalCompassBean">

        <!-- 這裏配置只用作建立索引的類 -->

        <property name="classMappings">

            <list>

                <value>org.li.compass.shibernate.Article</value>

            </list>

        </property>


        <property name="resourceDirectoryLocations">

            <list>

                <value>org/li/compass/shibernate</value>

            </list>

        </property>

        <property name="compassConfiguration"

            ref="compassConfiguration" />

        <property name="compassSettings">

            <props>

                <prop key="compass.engine.connection">target/test</prop>

                <prop key="compass.transaction.factory">

                    org.compass.spring.transaction.SpringSyncTransactionFactory

                </prop>

            </props>

        </property>

        <property name="transactionManager" ref="transactionManager" />

    </bean>

在上面配置只用作建立索引的類就可以

還有與Hibernate和Spring集成差不多。有個CompassTemplate的DAO模板也要注入

Xml代碼

<bean id="compassTemplate" class="org.compass.core.CompassTemplate">
<property name="compass">
<ref local="compass"/>
</property>
</bean>

<bean id="compassTemplate" class="org.compass.core.CompassTemplate">

        <property name="compass">

            <ref local="compass"/>

        </property>

    </bean>

還有關鍵的兩個類的注入：

Xml代碼

<bean id="hibernateGpsDevice"
class="org.compass.spring.device.hibernate.SpringHibernate3GpsDevice">
<property name="name">
<value>hibernateDevice</value>
</property>
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<bean id="compassGps" class="org.compass.gps.impl.SingleCompassGps"
init-method="start" destroy-method="stop">
<property name="compass" ref="compass" />
<property name="gpsDevices">
<list>
<ref local="hibernateGpsDevice" />
</list>
</property>
</bean>

<bean id="hibernateGpsDevice"

        class="org.compass.spring.device.hibernate.SpringHibernate3GpsDevice">

        <property name="name">

            <value>hibernateDevice</value>

        </property>

        <property name="sessionFactory" ref="sessionFactory" />

    </bean>

<bean id="compassGps" class="org.compass.gps.impl.SingleCompassGps"

        init-method="start" destroy-method="stop">

        <property name="compass" ref="compass" />

        <property name="gpsDevices">

            <list>

                <ref local="hibernateGpsDevice" />

            </list>

        </property>

    </bean>

最後呢就是要在articleDAO上注入CompassTemplate因爲我們要搜索的時候用到CompassTemplate了（CompassTemplate是支持事務的）

Xml代碼

<property name="compassImplements">
<ref local="compassImplements"/>
</property>

<property name="compassImplements">

            <ref local="compassImplements"/>

        </property>

這樣配置就ok了

下面測試一下吧：

新建JUnit測試用例：

Java代碼

public class TestCompass extends TestCase
{
private ClassPathXmlApplicationContext context = null;
protectedvoid setUp() throws Exception
{
context = new ClassPathXmlApplicationContext("applicationContext.xml");
}
protected void tearDown() throws Exception
{
}
public void insertTest()
{
ArticleDAO articleDao = (ArticleDAO) context.getBean("articleDAO");
AuthorDAO authorDao = (AuthorDAO) context.getBean("authorDAO");
Article article = new Article();
Author author = new Author();
author.setAge((short)21);
author.setUsername("javafish");
author.setPassword("java");
article.setTitle("Compass學習文檔");
article.setPublishDate(new Date());
article.setAuthor("javafish");
authorDao.save(author);
articleDao.save(article);
}
public void find()
{
ArticleDAO articleDao = (ArticleDAO) context.getBean("articleDAO");
Article article = articleDao.find("文檔");
System.out.println(article.getPublishDate());
}
}

public class TestCompass extends TestCase

{

    private ClassPathXmlApplicationContext context = null;

    protectedvoid setUp() throws Exception

    {

        context = new ClassPathXmlApplicationContext("applicationContext.xml");

    }

    protected void tearDown() throws Exception

    {

    }

    public void insertTest()

    {

        ArticleDAO articleDao = (ArticleDAO) context.getBean("articleDAO");

        AuthorDAO authorDao = (AuthorDAO) context.getBean("authorDAO");

        Article article = new Article();

        Author author = new Author();

        author.setAge((short)21);

        author.setUsername("javafish");

        author.setPassword("java");

        article.setTitle("Compass學習文檔");

        article.setPublishDate(new Date());

        article.setAuthor("javafish");

        authorDao.save(author);

        articleDao.save(article);

        

    }

    public void find()

    {

        ArticleDAO articleDao = (ArticleDAO) context.getBean("articleDAO");

        Article article = articleDao.find("文檔");

        System.out.println(article.getPublishDate());

    }

}

看到沒有在insertTest()里根本看不出用Compass來全是Hibernate和Spring的代碼。

在對像article和author被寫入數據庫的同時，article也被寫入索引了。

看到了Compass與Hibernate,Spring集成的威力了吧。

我們可以用Lucene測試一下。

Java代碼

publicvoid lucene() throws IOException, ParseException
{
IndexSearcher indexSearcher = new IndexSearcher("D:""workspace""CompassSpringHibernate""target""test""index""article");
QueryParser queryParser = new QueryParser("titleIndex",new StandardAnalyzer());
Query query = queryParser.parse("學習");
Hits hits = indexSearcher.search(query);
Document doc = null;
for(int i=0;i<hits.length();i++)
{
doc=hits.doc(i);
System.out.println(doc.get("titleIndex"));
System.out.println(doc.get("publishDateIndex"));
}
}

publicvoid lucene() throws IOException, ParseException

    {

        IndexSearcher indexSearcher = new IndexSearcher("D:""workspace""CompassSpringHibernate""target""test""index""article");

        QueryParser queryParser = new QueryParser("titleIndex",new StandardAnalyzer());

        Query query = queryParser.parse("學習");

        Hits hits = indexSearcher.search(query);

        Document doc = null;

        for(int i=0;i<hits.length();i++)

        {

            doc=hits.doc(i);

            System.out.println(doc.get("titleIndex"));

            System.out.println(doc.get("publishDateIndex"));

        }

    }

會發現結果搜索成功了～～

而我們查詢的時候就可以在DAO類裏封裝CompassQuery的操作。

其它具體還是看幫助文檔吧。^_^

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