主要代码

/*** Xstream 测试* [@return](https://my.oschina.net/u/556800)*/@RequestMapping("/forward/xstream")public String xstream(){String str = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><epay><items><item><id>2</id><name>cyc1</name></item><item><id>1</id><name>cyc</name></item></items></epay>";XStream xstream = new XStream();//获取生成的对象TestVo testVo = getPerson();//构建对应的节点(这里很重要构建生成的Xml 文件或者对象的节点)xstream.alias("epay",TestVo.class);xstream.aliasField("items",TestVo.class, "list");xstream.alias("item", tests.class);//将对象转为xmlString xml = xstream.toXML(testVo);System.out.println("cyc==== XStream:"+xml);//将xml转为对象TestVo testVos = (TestVo) xstream.fromXML(str);System.out.println("cyc==== testVos"+testVos);//将对象再次转为xmlString xml2 = xstream.toXML(testVos);System.out.println("cyc==== XStream2:"+xml2);System.out.println("cyc==== Size:"+testVos.getList().size());return "publicTpl/notChrome";}public TestVo getPerson(){TestVo testVo = new TestVo();List<tests> list = new ArrayList<tests>();for(int i=0;i<10;i++){tests tests = new tests();tests.setId("1");tests.setName("cyc");list.add(tests);}testVo.setList(list);return testVo;}

TestVo类代码:
public class TestVo {private List<tests> list;public List<tests> getList() {return list;}public void setList(List<tests> list) {this.list = list;}@Overridepublic String toString() {return "TestVo [list=" + list + "]";}}

tests类代码:
public class tests {private String id;private String name;public String getId() {return id;}public void setId(String id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}@Overridepublic String toString() {return "tests [id=" + id + ", name=" + name + "]";}}

输出结果：
cyc==== XStream:<epay><items><item><id>1</id><name>cyc</name></item><item><id>1</id><name>cyc</name></item><item><id>1</id><name>cyc</name></item><item><id>1</id><name>cyc</name></item><item><id>1</id><name>cyc</name></item><item><id>1</id><name>cyc</name></item><item><id>1</id><name>cyc</name></item><item><id>1</id><name>cyc</name></item><item><id>1</id><name>cyc</name></item><item><id>1</id><name>cyc</name></item></items>
</epay>
cyc==== testVosTestVo [list=[tests [id=2, name=cyc1], tests [id=1, name=cyc]]]
cyc==== XStream2:<epay><items><item><id>2</id><name>cyc1</name></item><item><id>1</id><name>cyc</name></item></items>
</epay>
cyc==== Size:2

（maven）所续的pom文件:

<dependency><groupId>xstream</groupId><artifactId>xstream</artifactId><version>1.2.2</version>
</dependency>

注意事项:如果想在java 项目中运行这个需要添加一些关联的包不然的话会报一个：

Exception in thread "main" com.thoughtworks.xstream.io.StreamException: Cannot create XmlPullParserat com.thoughtworks.xstream.io.xml.AbstractXppDriver.createReader(AbstractXppDriver.java:56)at com.thoughtworks.xstream.XStream.fromXML(XStream.java:1085)at com.thoughtworks.xstream.XStream.fromXML(XStream.java:1076)at test.test3.main(test3.java:16)
Caused by: org.xmlpull.v1.XmlPullParserException: could not load any factory class (even small or full default implementation); nested exception is: org.kxml2.io.XmlReaderat org.xmlpull.v1.XmlPullParserFactory.newInstance(XmlPullParserFactory.java:225)at org.xmlpull.v1.XmlPullParserFactory.newInstance(XmlPullParserFactory.java:76)at com.thoughtworks.xstream.io.xml.XppDriver.createParser(XppDriver.java:57)at com.thoughtworks.xstream.io.xml.AbstractXppDriver.createReader(AbstractXppDriver.java:54)... 3 more