import java.util.List;
/**
* Created by IntelliJ IDEA.<br>
* <b>User</b>: leizhimin<br>
* <b>Date</b>: 2008-5-22 21:10:13<br>
* <b>Note</b>: Please add comment here!
*/
public class Person {
private String name;
private String age;
private Profile profile;
private List<Address> addlist;
public Person(String name, String age, Profile profile, List<Address> addlist) {
this.name = name;
this.age = age;
this.profile = profile;
this.addlist = addlist;
}
public String toString() {
return "Person{" +
"name='" + name + '\'' +
", age='" + age + '\'' +
", profile=" + profile +
", addlist=" + addlist +
'}';
}
}
import java.sql.Date;
/**
* Created by IntelliJ IDEA.<br>
* <b>User</b>: leizhimin<br>
* <b>Date</b>: 2008-5-22 21:10:32<br>
* <b>Note</b>: Please add comment here!
*/
public class Profile {
private String job;
private String tel;
private String remark;
public Profile(String job, String tel, String remark) {
this.job = job;
this.tel = tel;
this.remark = remark;
}
public String toString() {
return "Profile{" +
"job='" + job + '\'' +
", tel='" + tel + '\'' +
", remark='" + remark + '\'' +
'}';
}
}
/**
* Created by IntelliJ IDEA.<br>
* <b>User</b>: leizhimin<br>
* <b>Date</b>: 2008-5-22 21:10:22<br>
* <b>Note</b>: Please add comment here!
*/
public class Address {
private String add;
private String zipcode;
public Address(String add, String zipcode) {
this.add = add;
this.zipcode = zipcode;
}
public String toString() {
return "Address{" +
"add='" + add + '\'' +
", zipcode='" + zipcode + '\'' +
'}';
}
}
import com.thoughtworks.xstream.XStream;
import java.util.List;
import java.util.ArrayList;
/**
* Created by IntelliJ IDEA.<br>
* <b>User</b>: leizhimin<br>
* <b>Date</b>: 2008-5-22 21:10:47<br>
* <b>Note</b>: XStream學習[[url]http://lavasoft.blog.51cto.com[/url]]
*/
public class TestXStream {
public static void main(String args[]) {
test();
}
public static void test() {
System.out.println("----------XStream學習:http://lavasoft.blog.51cto.com----------");
//目標對象
Address address1 = new Address("鄭州市經三路", "450001");
Address address2 = new Address("西安市雁塔路", "710002");
List<Address> addList = new ArrayList<Address>();
addList.add(address1);
addList.add(address2);
Profile profile = new Profile("軟件工程師", "13512129933", "備註說明");
Person person = new Person("熔岩", "27", profile, addList);
//轉換裝配
XStream xStream = new XStream();
/************** 設置類別名 ****************/
xStream.alias("PERSON", test.Person.class);
xStream.alias("PROFILE", test.Profile.class);
xStream.alias("ADDRESS", test.Address.class);
output(1, xStream, person);
/************* 設置類成員的別名 ***************/
//設置Person類的name成員別名Name
xStream.aliasField("Name", Person.class, "name");
/*[注意] 設置Person類的profile成員別名PROFILE,這個別名和Profile類的別名一致,
* 這樣可以保持XStream對象可以從profile成員生成的xml片段直接轉換爲Profile成員,
* 如果成員profile的別名和Profile的別名不一致,則profile成員生成的xml片段不可
* 直接轉換爲Profile對象,需要重新創建XStream對象,這豈不給自己找麻煩? */
xStream.aliasField("PROFILE", test.Person.class, "profile");
xStream.aliasField("ADDLIST", test.Person.class, "addlist");
xStream.aliasField("Add", test.Address.class, "add");
xStream.aliasField("Job", test.Profile.class, "job");
output(2, xStream, person);
/******* 設置類成員爲xml一個元素上的屬性 *******/
xStream.useAttributeFor(Address.class, "zipcode");
/************* 設置屬性的別名 ***************/
xStream.aliasAttribute(test.Address.class, "zipcode", "Zipcode");
output(3, xStream, person);
/************* 將xml轉爲java對象 ******×****/
String person_xml = "<PERSON>\n" +
" <Name>熔岩</Name>\n" +
" <age>27</age>\n" +
" <PROFILE>\n" +
" <Job>軟件工程師</Job>\n" +
" <tel>13512129933</tel>\n" +
" <remark>備註說明</remark>\n" +
" </PROFILE>\n" +
" <ADDLIST>\n" +
" <ADDRESS Zipcode=\"450001\">\n" +
" <Add>鄭州市經三路</Add>\n" +
" </ADDRESS>\n" +
" <ADDRESS Zipcode=\"710002\">\n" +
" <Add>西安市雁塔路</Add>\n" +
" </ADDRESS>\n" +
" </ADDLIST>\n" +
"</PERSON>";
String profile_xml = " <PROFILE>\n" +
" <Job>軟件工程師</Job>\n" +
" <tel>13512129933</tel>\n" +
" <remark>備註說明</remark>\n" +
" </PROFILE>";
String address_xml = " <ADDRESS Zipcode=\"710002\">\n" +
" <Add>西安市雁塔路</Add>\n" +
" </ADDRESS>";
//同樣實用上面的XStream對象xStream
System.out.println(xStream.fromXML(person_xml).toString());
System.out.println(xStream.fromXML(profile_xml).toString());
System.out.println(xStream.fromXML(address_xml).toString());
}
public static void output(int i, XStream xStream, Object obj) {
String xml = xStream.toXML(obj);
System.out.println(">>>第[ " + i + "]次輸出\n");
System.out.println(xml + "\n");
}
}
>>>第[ 1]次輸出
<PERSON>
<name>熔岩</name>
<age>27</age>
<profile>
<job>軟件工程師</job>
<tel>13512129933</tel>
<remark>備註說明</remark>
</profile>
<addlist>
<ADDRESS>
<add>鄭州市經三路</add>
<zipcode>450001</zipcode>
</ADDRESS>
<ADDRESS>
<add>西安市雁塔路</add>
<zipcode>710002</zipcode>
</ADDRESS>
</addlist>
</PERSON>
>>>第[ 2]次輸出
<PERSON>
<Name>熔岩</Name>
<age>27</age>
<PROFILE>
<Job>軟件工程師</Job>
<tel>13512129933</tel>
<remark>備註說明</remark>
</PROFILE>
<ADDLIST>
<ADDRESS>
<Add>鄭州市經三路</Add>
<zipcode>450001</zipcode>
</ADDRESS>
<ADDRESS>
<Add>西安市雁塔路</Add>
<zipcode>710002</zipcode>
</ADDRESS>
</ADDLIST>
</PERSON>
>>>第[ 3]次輸出
<PERSON>
<Name>熔岩</Name>
<age>27</age>
<PROFILE>
<Job>軟件工程師</Job>
<tel>13512129933</tel>
<remark>備註說明</remark>
</PROFILE>
<ADDLIST>
<ADDRESS Zipcode="450001">
<Add>鄭州市經三路</Add>
</ADDRESS>
<ADDRESS Zipcode="710002">
<Add>西安市雁塔路</Add>
</ADDRESS>
</ADDLIST>
</PERSON>
Person{name='熔岩', age='27', profile=Profile{job='軟件工程師', tel='13512129933', remark='備註說明'}, addlist=[Address{add='鄭州市經三路', zipcode='450001'}, Address{add='西安市雁塔路', zipcode='710002'}]}
Profile{job='軟件工程師', tel='13512129933', remark='備註說明'}
Address{add='西安市雁塔路', zipcode='710002'}
Process finished with exit code 0
在過濾之前,我實現了個轉換器裝配,這一步通過xml來配置,並在java中獲取。
代碼就省略了,這一步很靈活,關鍵看你的應用了。
private static void recursiveElement(Element element) {
List<Element> elements = element.elements();
validXPathList.add(element.getPath());
if (elements.size() == 0) {
//沒有子元素
} else {
//有子元素
for (Iterator<Element> it = elements.iterator(); it.hasNext();) {
//遞歸遍歷
recursiveElement(it.next());
}
}
}
//遞歸算法:遍歷xml,標識無效的元素節點
private static void recursiveFixElement(Element element) {
List<Element> elements = element.elements();
if (!validXPathList.contains(element.getPath())) {
element.addAttribute("delete", "true");
}
if (elements.size() == 0) {
//沒有子元素
} else {
//有子元素
for (Iterator<Element> it = elements.iterator(); it.hasNext();) {
Element e = it.next();
if (!validXPathList.contains(e.getPath())) {
e.addAttribute("delete", "true");
}
//遞歸遍歷
recursiveFixElement(e);
}
}
}
/**
* 過濾器接口方法,轉換不規範字符,剔除無效節點
*
* @param xmlStr 要過濾的xml
* @return 符合轉換器要求的xml
*/
public static String filter(String xmlStr) {
Document document = null;
try {
document = DocumentHelper.parseText(xmlStr.replaceAll("__", "_"));
//遞歸的調用:標記要剔除的xml元素
recursiveFixElement(document.getRootElement());
List<Node> nodeList = document.selectNodes("//@delete");
for (Node node : nodeList) {
node.getParent().detach(); //剔除xml元素
}
} catch (DocumentException e) {
System.out.println(e.getMessage());
e.printStackTrace();
}
return document.asXML();
}
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