JSON-lib框架，转换JSON、XML不再困难

Json-lib可以将Java对象转成json格式的字符串，也可以将Java对象转换成xml格式的文档，同样可以将json字符串转换成Java对象或是将xml字符串转换成Java对象。

一、 准备工作 

 

1、 首先要去官方下载json-lib工具包

下载地址：

http://sourceforge.net/projects/json-lib/files/json-lib/json-lib-2.4/

目前最新的是2.4的版本，本示例中使用的是v2.3；json-lib还需要以下依赖包：

jakarta commons-lang 2.5

jakarta commons-beanutils 1.8.0

jakarta commons-collections 3.2.1

jakarta commons-logging 1.1.1

ezmorph 1.0.6

官方网址：http://json-lib.sourceforge.net/

然后在工程中添加如下jar包：

当然你也可以用2.4的json-lib库

你可以在这里看看官方提供的示例：

http://json-lib.sourceforge.net/usage.html

由于本次介绍的示例需要junit工具，所以你还需要添加junit的jar文件，版本是4.8.2版本的，下载地址：https://github.com/KentBeck/junit/downloads

如果你还不了解JSON是什么？那么你应该可以看看http://www.json.org/json-zh.html

2、 要转换的JavaBean的代码如下：

package com.hoo.entity; public class Student {    private int id;    private String name;    private String email;    private String address;    private Birthday birthday;     //setter、getter    public String toString() {        return this.name + "#" + this.id + "#" + this.address + "#" + this.birthday + "#" + this.email;    }} Birthday.javapackage com.hoo.entity; public class Birthday {    private String birthday;        public Birthday(String birthday) {        super();        this.birthday = birthday;    }    //setter、getter    public Birthday() {}        @Override    public String toString() {        return this.birthday;    }}

注意，上面的getter、setter方法省略了，自己构建下。

3、 新建JsonlibTest测试类，基本代码如下：

package com.hoo.test; import java.lang.reflect.InvocationTargetException;import java.util.ArrayList;import java.util.Collection;import java.util.Date;import java.util.HashMap;import java.util.Iterator;import java.util.List;import java.util.Map;import java.util.Set;import net.sf.json.JSON;import net.sf.json.JSONArray;import net.sf.json.JSONFunction;import net.sf.json.JSONObject;import net.sf.json.JSONSerializer;import net.sf.json.JsonConfig;import net.sf.json.processors.JsonValueProcessor;import net.sf.json.util.PropertyFilter;import net.sf.json.xml.XMLSerializer;import org.apache.commons.beanutils.PropertyUtils;import org.junit.After;import org.junit.Before;import org.junit.Test;import com.hoo.entity.Birthday;import com.hoo.entity.Student; /** * <b>function:</b> 用json-lib转换java对象到JSON字符串 * 读取json字符串到java对象，序列化jsonObject到xml * json-lib-version: json-lib-2.3-jdk15.jar * 依赖包:  * commons-beanutils.jar * commons-collections-3.2.jar * ezmorph-1.0.3.jar * commons-lang.jar * commons-logging.jar * @author hoojo * @createDate Nov 28, 2010 2:28:39 PM * @file JsonlibTest.java * @package com.hoo.test * @project WebHttpUtils * @blog http://blog.csdn.net/IBM_hoojo * @email [e-mail] * @version 1.0 */@SuppressWarnings({ "deprecation", "unchecked" })public class JsonlibTest {    private JSONArray jsonArray = null;    private JSONObject jsonObject = null;        private Student bean = null;        @Before    public void init() {        jsonArray = new JSONArray();         jsonObject = new JSONObject();                 bean = new Student();        bean.setAddress("address");        bean.setEmail("email");        bean.setId(1);        bean.setName("haha");        Birthday day = new Birthday();        day.setBirthday("2010-11-22");        bean.setBirthday(day);    }        @After    public void destory() {        jsonArray = null;        jsonObject = null;        bean = null;        System.gc();    }        public final void fail(String string) {        System.out.println(string);    }        public final void failRed(String string) {        System.err.println(string);    }    }

上面的init会在每个方法之前运行，destory会在每个方法完成后执行。分别用到了junit的@Before、@After注解，如果你对junit的这些注解不是很了解，可以看看junit官方的测试用例的example和doc；

JSONObject是将Java对象转换成一个json的Object形式，JSONArray是将一个Java对象转换成json的Array格式。

那什么是json的Object形式、Array形式？

用通俗易懂的方法将，所谓的json的Object形式就是一个花括号里面存放的如JavaMap的键值对，如：{name:’hoojo’, age: 24}；

那么json的Array形式呢？

就是中括号，括起来的数组。如：[ ‘json’, true, 22]；

如果你还想了解更多json方面的知识，请看：http://www.json.org/json-zh.html

除了上面的JSONArray、JSONObject可以将Java对象转换成JSON或是相反，将JSON字符串转换成Java对象，还有一个对象也可以完成上面的功能，它就是JSONSerializer；下面我们就来看看它们是怎么玩转Java对象和JSON的。

二、 Java对象序列化成JSON对象

1、 将JavaObject转换吃JSON字符串

在JsonlibTest中添加如下代码：

/*=========================Java Object >>>> JSON String ===========================*//** * <b>function:</b>转Java Bean对象到JSON * @author hoojo * @createDate Nov 28, 2010 2:35:54 PM */@Testpublic void writeEntity2JSON() {    fail("==============Java Bean >>> JSON Object==================");    fail(JSONObject.fromObject(bean).toString());    fail("==============Java Bean >>> JSON Array==================");    fail(JSONArray.fromObject(bean).toString());//array会在最外层套上[]    fail("==============Java Bean >>> JSON Object ==================");    fail(JSONSerializer.toJSON(bean).toString());        fail("========================JsonConfig========================");    JsonConfig jsonConfig = new JsonConfig();       jsonConfig.registerJsonValueProcessor(Birthday.class, new JsonValueProcessor() {        public Object processArrayValue(Object value, JsonConfig jsonConfig) {            if (value == null) {                return new Date();            }            return value;        }         public Object processObjectValue(String key, Object value, JsonConfig jsonConfig) {            fail("key:" + key);            return value + "##修改过的日期";        }     });    jsonObject = JSONObject.fromObject(bean, jsonConfig);        fail(jsonObject.toString());    Student student = (Student) JSONObject.toBean(jsonObject, Student.class);    fail(jsonObject.getString("birthday"));    fail(student.toString());        fail("#####################JsonPropertyFilter############################");    jsonConfig.setJsonPropertyFilter(new PropertyFilter() {        public boolean apply(Object source, String name, Object value) {            fail(source + "%%%" + name + "--" + value);            //忽略birthday属性            if (value != null && Birthday.class.isAssignableFrom(value.getClass())) {                return true;            }            return false;        }    });      fail(JSONObject.fromObject(bean, jsonConfig).toString());    fail("#################JavaPropertyFilter##################");    jsonConfig.setRootClass(Student.class);       jsonConfig.setJavaPropertyFilter(new PropertyFilter() {        public boolean apply(Object source, String name, Object value) {            fail(name + "@" + value + "#" + source);            if ("id".equals(name) || "email".equals(name)) {                value = name + "@@";                return true;            }            return false;        }    });       //jsonObject = JSONObject.fromObject(bean, jsonConfig);    //student = (Student) JSONObject.toBean(jsonObject, Student.class);    //fail(student.toString());    student = (Student) JSONObject.toBean(jsonObject, jsonConfig);    fail("Student:" + student.toString());}

fromObject将Java对象转换成json字符串，toBean将json对象转换成Java对象；

上面方法值得注意的是使用了JsonConfig这个对象，这个对象可以在序列化的时候对JavaObject的数据进行处理、过滤等

上面的jsonConfig的registerJsonValueProcessor方法可以完成对象值的处理和修改，比如处理生日为null时，给一个特定的值。同样setJsonPropertyFilter和setJavaPropertyFilter都是完成对转换后的值的处理。

运行上面的代码可以在控制台看到如下结果：

==============Java Bean >>> JSON Object==================

{"address":"address","birthday":{"birthday":"2010-11-22"},"email":"email","id":1,"name":"haha"}

==============Java Bean >>> JSON Array==================

[{"address":"address","birthday":{"birthday":"2010-11-22"},"email":"email","id":1,"name":"haha"}]

==============Java Bean >>> JSON Object ==================

{"address":"address","birthday":{"birthday":"2010-11-22"},"email":"email","id":1,"name":"haha"}

========================JsonConfig========================

key:birthday

{"address":"address","birthday":"2010-11-22##修改过的日期","email":"email","id":1,"name":"haha"}

2010-11-22##修改过的日期

haha#1#address#null#email

#####################JsonPropertyFilter############################

haha#1#address#2010-11-22#email%%%address--address

haha#1#address#2010-11-22#email%%%birthday--2010-11-22

haha#1#address#2010-11-22#email%%%email--email

haha#1#address#2010-11-22#email%%%id--1

haha#1#address#2010-11-22#email%%%name--haha

{"address":"address","email":"email","id":1,"name":"haha"}

#################JavaPropertyFilter##################

address@address#null#0#null#null#null

birthday@2010-11-22##修改过的日期#null#0#address#null#null

email@email#null#0#address#null#null

id@1#null#0#address#null#null

name@haha#null#0#address#null#null

Student:haha#0#address#null#null

2、 将JavaList集合转换吃JSON字符串

/** * <b>function:</b>转换Java List集合到JSON * @author hoojo * @createDate Nov 28, 2010 2:36:15 PM */@Testpublic void writeList2JSON() {    fail("==============Java List >>> JSON Array==================");    List<Student> stu = new ArrayList<Student>();    stu.add(bean);    bean.setName("jack");    stu.add(bean);    fail(JSONArray.fromObject(stu).toString());    fail(JSONSerializer.toJSON(stu).toString());}

运行此方法后，可以看到控制台输出：

==============Java List >>> JSON Array==================

[{"address":"address","birthday":{"birthday":"2010-11-22"},"email":"email","id":1,"name":"jack"},

{"address":"address","birthday":{"birthday":"2010-11-22"},"email":"email","id":1,"name":"jack"}]

[{"address":"address","birthday":{"birthday":"2010-11-22"},"email":"email","id":1,"name":"jack"},

{"address":"address","birthday":{"birthday":"2010-11-22"},"email":"email","id":1,"name":"jack"}]

如果你是转换List集合，一定得用JSONArray或是JSONSrializer提供的序列化方法。如果你用JSONObject.fromObject方法转换List会出现异常，通常使用JSONSrializer这个JSON序列化的方法，它会自动识别你传递的对象的类型，然后转换成相应的JSON字符串。

3、 将Map集合转换成JSON对象

/** * <b>function:</b>转Java Map对象到JSON * @author hoojo * @createDate Nov 28, 2010 2:37:35 PM */@Testpublic void writeMap2JSON() {    Map<String, Object> map = new HashMap<String, Object>();    map.put("A", bean);        bean.setName("jack");    map.put("B", bean);    map.put("name", "json");    map.put("bool", Boolean.TRUE);    map.put("int", new Integer(1));    map.put("arr", new String[] { "a", "b" });    map.put("func", "function(i){ return this.arr[i]; }");     fail("==============Java Map >>> JSON Object==================");    fail(JSONObject.fromObject(map).toString());    fail("==============Java Map >>> JSON Array ==================");    fail(JSONArray.fromObject(map).toString());    fail("==============Java Map >>> JSON Object==================");    fail(JSONSerializer.toJSON(map).toString());}

上面的Map集合有JavaBean、String、Boolean、Integer、以及Array和js的function函数的字符串。

运行上面的程序，结果如下：

==============Java Map >>> JSON Object==================

{"arr":["a","b"],"A":{"address":"address","birthday":{"birthday":"2010-11-22"},"email":"email","id":1,"name":"jack"},"int":1,

"B":{"address":"address","birthday":{"birthday":"2010-11-22"},"email":"email","id":1,"name":"jack"},"name":"json",

"func":function(i){ return this.arr[i]; },"bool":true}

==============Java Map >>> JSON Array ==================

[{"arr":["a","b"],"A":{"address":"address","birthday":{"birthday":"2010-11-22"},"email":"email","id":1,"name":"jack"},"int":1,

"B":{"address":"address","birthday":{"birthday":"2010-11-22"},"email":"email","id":1,"name":"jack"},"name":"json",

"func":function(i){ return this.arr[i]; },"bool":true}]

==============Java Map >>> JSON Object==================

{"arr":["a","b"],"A":{"address":"address","birthday":{"birthday":"2010-11-22"},"email":"email","id":1,"name":"jack"},"int":1,

"B":{"address":"address","birthday":{"birthday":"2010-11-22"},"email":"email","id":1,"name":"jack"},"name":"json",

"func":function(i){ return this.arr[i]; },"bool":true}

4、 将更多类型转换成JSON

/** * <b>function:</b>  转换更多数组类型到JSON * @author hoojo * @createDate Nov 28, 2010 2:39:19 PM */@Testpublic void writeObject2JSON() {    String[] sa = {"a", "b", "c"};    fail("==============Java StringArray >>> JSON Array ==================");    fail(JSONArray.fromObject(sa).toString());    fail(JSONSerializer.toJSON(sa).toString());    fail("==============Java boolean Array >>> JSON Array ==================");    boolean[] bo = { true, false, true };    fail(JSONArray.fromObject(bo).toString());    fail(JSONSerializer.toJSON(bo).toString());    Object[] o = { 1, "a", true, 'A', sa, bo };    fail("==============Java Object Array >>> JSON Array ==================");    fail(JSONArray.fromObject(o).toString());    fail(JSONSerializer.toJSON(o).toString());    fail("==============Java String >>> JSON ==================");    fail(JSONArray.fromObject("['json','is','easy']").toString());    fail(JSONObject.fromObject("{'json':'is easy'}").toString());    fail(JSONSerializer.toJSON("['json','is','easy']").toString());    fail("==============Java JSONObject >>> JSON ==================");    jsonObject = new JSONObject()           .element("string", "JSON")        .element("integer", "1")        .element("double", "2.0")        .element("boolean", "true");      fail(JSONSerializer.toJSON(jsonObject).toString());        fail("==============Java JSONArray >>> JSON ==================");    jsonArray = new JSONArray()           .element( "JSON" )           .element( "1" )           .element( "2.0" )           .element( "true" );     fail(JSONSerializer.toJSON(jsonArray).toString());        fail("==============Java JSONArray JsonConfig#setArrayMode >>> JSON ==================");    List input = new ArrayList();       input.add("JSON");    input.add("1");    input.add("2.0");    input.add("true");       JSONArray jsonArray = (JSONArray) JSONSerializer.toJSON( input );       JsonConfig jsonConfig = new JsonConfig();       jsonConfig.setArrayMode( JsonConfig.MODE_OBJECT_ARRAY );       Object[] output = (Object[]) JSONSerializer.toJava(jsonArray, jsonConfig);    System.out.println(output[0]);        fail("==============Java JSONFunction >>> JSON ==================");    String str = "{'func': function( param ){ doSomethingWithParam(param); }}";       JSONObject jsonObject = (JSONObject) JSONSerializer.toJSON(str);       JSONFunction func = (JSONFunction) jsonObject.get("func");       fail(func.getParams()[0]);       fail(func.getText() );   }

运行后结果如下：

==============Java StringArray >>> JSON Array ==================

["a","b","c"]

["a","b","c"]

==============Java boolean Array >>> JSON Array ==================

[true,false,true]

[true,false,true]

==============Java Object Array >>> JSON Array ==================

[1,"a",true,"A",["a","b","c"],[true,false,true]]

[1,"a",true,"A",["a","b","c"],[true,false,true]]

==============Java String >>> JSON ==================

["json","is","easy"]

{"json":"is easy"}

["json","is","easy"]

==============Java JSONObject >>> JSON ==================

{"string":"JSON","integer":"1","double":"2.0","boolean":"true"}

==============Java JSONArray >>> JSON ==================

["JSON","1","2.0","true"]

==============Java JSONArray JsonConfig#setArrayMode >>> JSON ==================

JSON

==============Java JSONFunction >>> JSON ==================

param

doSomethingWithParam(param);

这里还有一个JSONFunction的对象，可以转换JavaScript的function。可以获取方法参数和方法体。同时，还可以用JSONObject、JSONArray构建Java对象，完成Java对象到JSON字符串的转换。

三、 JSON对象反序列化成Java对象

1、 将json字符串转成Java对象

private String json = "{\"address\":\"chian\",\"birthday\":{\"birthday\":\"2010-11-22\"}," +        "\"email\":\"[e-mail]\",\"id\":22,\"name\":\"tom\"}";/** * <b>function:</b>将json字符串转化为java对象 * @author hoojo * @createDate Nov 28, 2010 3:01:16 PM */@Testpublic void readJSON2Bean() {    fail("==============JSON Object String >>> Java Bean ==================");    jsonObject = JSONObject.fromObject(json);    Student stu = (Student) JSONObject.toBean(jsonObject, Student.class);    fail(stu.toString());}

运行后，结果如下：

==============JSON Object String >>> Java Bean ==================
tom#22#chian#2010-11-22#[e-mail]

2、 将json字符串转换成动态Java对象(MorphDynaBean)

private String json = "{\"address\":\"chian\",\"birthday\":{\"birthday\":\"2010-11-22\"},"+        "\"email\":\"[e-mail]\",\"id\":22,\"name\":\"tom\"}"; @Testpublic void readJSON2DynaBean() {    try {        fail("==============JSON Object String >>> Java MorphDynaBean ==================");        JSON jo = JSONSerializer.toJSON(json);        Object o = JSONSerializer.toJava(jo);//MorphDynaBean        fail(PropertyUtils.getProperty(o, "address").toString());        jsonObject = JSONObject.fromObject(json);        fail(jsonObject.getString("email"));        o = JSONSerializer.toJava(jsonObject);//MorphDynaBean        fail(PropertyUtils.getProperty(o, "name").toString());    } catch (IllegalAccessException e) {        e.printStackTrace();    } catch (InvocationTargetException e) {        e.printStackTrace();    } catch (NoSuchMethodException e) {        e.printStackTrace();    }}

转换后的对象Object是一个MorphDynaBean的动态JavaBean，通过PropertyUtils可以获得指定的属性的值。

运行后结果如下：

==============JSON Object String >>> Java MorphDynaBean =============
chian
[e-mail]
tom

3、 将json字符串转成Java的Array数组

private String json = "{\"address\":\"chian\",\"birthday\":{\"birthday\":\"2010-11-22\"},"+        "\"email\":\"[e-mail]\",\"id\":22,\"name\":\"tom\"}"; @Testpublic void readJSON2Array() {    try {        fail("==============JSON Arry String >>> Java Array ==================");        json = "[" + json + "]";        jsonArray = JSONArray.fromObject(json);        fail("#%%%" + jsonArray.get(0).toString());        Object[] os = jsonArray.toArray();        System.out.println(os.length);                fail(JSONArray.fromObject(json).join(""));        fail(os[0].toString());        Student[] stus = (Student[]) JSONArray.toArray(jsonArray, Student.class);        System.out.println(stus.length);        System.out.println(stus[0]);    } catch (Exception e) {        e.printStackTrace();    }}

运行的结果如下：

==============JSON Arry String >>> Java Array ==================

#%%%{"address":"chian","birthday":{"birthday":"2010-11-22"},"email":"[e-mail]","id":22,"name":"tom"}

1

{"address":"chian","birthday":{"birthday":"2010-11-22"},"email":"[e-mail]","id":22,"name":"tom"}

{"address":"chian","birthday":{"birthday":"2010-11-22"},"email":"[e-mail]","id":22,"name":"tom"}

1

tom#22#chian#2010-11-22#[e-mail]

4、 将JSON字符串转成Java的List集合

private String json = "{\"address\":\"chian\",\"birthday\":{\"birthday\":\"2010-11-22\"},"+        "\"email\":\"[e-mail]\",\"id\":22,\"name\":\"tom\"}"; @Testpublic void readJSON2List() {    try {        fail("==============JSON Arry String >>> Java List ==================");        json = "[" + json + "]";        jsonArray = JSONArray.fromObject(json);        List<Student> list = JSONArray.toList(jsonArray, Student.class);        System.out.println(list.size());        System.out.println(list.get(0));                list = JSONArray.toList(jsonArray);        System.out.println(list.size());        System.out.println(list.get(0));//MorphDynaBean    } catch (Exception e) {        e.printStackTrace();    }}

运行后结果如下：

==============JSON Arry String >>> Java List ==================

1

tom#22#chian#2010-11-22#[e-mail]

1

net.sf.ezmorph.bean.MorphDynaBean@141b571[

  {id=22, birthday=net.sf.ezmorph.bean.MorphDynaBean@b23210[

  {birthday=2010-11-22}

], address=chian, email=[e-mail], name=tom}

]

5、 将json字符串转换成Collection接口

private String json = "{\"address\":\"chian\",\"birthday\":{\"birthday\":\"2010-11-22\"},"+        "\"email\":\"[e-mail]\",\"id\":22,\"name\":\"tom\"}"; @Testpublic void readJSON2Collection() {    try {        fail("==============JSON Arry String >>> Java Collection ==================");        json = "[" + json + "]";        jsonArray = JSONArray.fromObject(json);        Collection<Student> con = JSONArray.toCollection(jsonArray, Student.class);        System.out.println(con.size());        Object[] stt = con.toArray();        System.out.println(stt.length);        fail(stt[0].toString());            } catch (Exception e) {        e.printStackTrace();    }}

刚才上面的将json转换成list提示该方法过时，这里有toCollection，可以用此方法代替toList方法；运行后结果如下：

==============JSON Arry String >>> Java Collection ==================

1

1

tom#22#chian#2010-11-22#[e-mail]

6、 将json字符串转换成Map集合

@Testpublic void readJSON2Map() {    try {        fail("==============JSON Arry String >>> Java Map ==================");        json = "{\"arr\":[\"a\",\"b\"],\"A\":{\"address\":\"address\",\"birthday\":{\"birthday\":\"2010-11-22\"},"+        "\"email\":\"email\",\"id\":1,\"name\":\"jack\"},\"int\":1,"+        "\"B\":{\"address\":\"address\",\"birthday\":{\"birthday\":\"2010-11-22\"},"+        "\"email\":\"email\",\"id\":1,\"name\":\"jack\"},\"name\":\"json\",\"bool\":true}";        jsonObject = JSONObject.fromObject(json);        Map<String, Class<?>> clazzMap = new HashMap<String, Class<?>>();        clazzMap.put("arr", String[].class);        clazzMap.put("A", Student.class);        clazzMap.put("B", Student.class);        Map<String, ?> mapBean = (Map) JSONObject.toBean(jsonObject, Map.class, clazzMap);        System.out.println(mapBean);                Set<String> set = mapBean.keySet();        Iterator<String> iter = set.iterator();        while (iter.hasNext()) {            String key = iter.next();            fail(key + ":" + mapBean.get(key).toString());        }    } catch (Exception e) {        e.printStackTrace();    }}

运行后结果如下：

==============JSON Arry String >>> Java Map ==================

{A=jack#1#address#2010-11-22#email, arr=[a, b], B=jack#1#address#2010-11-22#email, int=1, name=json, bool=true}

A:jack#1#address#2010-11-22#email

arr:[a, b]

B:jack#1#address#2010-11-22#email

int:1

name:json

bool:true

四、 JSON-lib对XML的支持

1、 将Java对象到XML

/*============================Java Object >>>>> XML ==========================*//** * <b>function:</b> 转换Java对象到XML * 需要额外的jar包：xom.jar * @author hoojo * @createDate Nov 28, 2010 2:39:55 PM */@Testpublic void writeObject2XML() {    XMLSerializer xmlSerializer = new XMLSerializer();    fail("==============Java String Array >>> XML ==================");    //xmlSerializer.setElementName("bean");    fail(xmlSerializer.write(JSONArray.fromObject(bean)));    String[] sa = {"a", "b", "c"};    fail("==============Java String Array >>> XML ==================");    fail(xmlSerializer.write(JSONArray.fromObject(sa)));    fail("==============Java boolean Array >>> XML ==================");    boolean[] bo = { true, false, true };    fail(xmlSerializer.write(JSONArray.fromObject(bo)));    fail(xmlSerializer.write(JSONSerializer.toJSON(bo)));    Object[] o = { 1, "a", true, 'A', sa, bo };    fail("==============Java Object Array >>> JSON Array ==================");    fail(xmlSerializer.write(JSONArray.fromObject(o)));    fail(xmlSerializer.write(JSONSerializer.toJSON(o)));    fail("==============Java String >>> JSON ==================");    fail(xmlSerializer.write(JSONArray.fromObject("['json','is','easy']")).toString());    fail(xmlSerializer.write(JSONObject.fromObject("{'json':'is easy'}")).toString());    fail(xmlSerializer.write(JSONSerializer.toJSON("['json','is','easy']")).toString());}

主要运用的是XMLSerializer的write方法，这个方法可以完成java对象到xml的转换，不过你很容易就可以看到这个xml序列化对象，需要先将java对象转成json对象，然后再将json转换吃xml文档。
运行后结果如下：
==============Java String Array >>> XML ==================<?xml version="1.0" encoding="UTF-8"?><a><e class="object"><address type="string">address</address><birthday class="object"><birthday type="string">2010-11-22</birthday></birthday><email type="string">email</email><id type="number">1</id><name type="string">haha</name></e></a> ==============Java String Array >>> XML ==================<?xml version="1.0" encoding="UTF-8"?><a><e type="string">a</e><e type="string">b</e><e type="string">c</e></a> ==============Java boolean Array >>> XML ==================<?xml version="1.0" encoding="UTF-8"?><a><e type="boolean">true</e><e type="boolean">false</e><e type="boolean">true</e></a> <?xml version="1.0" encoding="UTF-8"?><a><e type="boolean">true</e><e type="boolean">false</e><e type="boolean">true</e></a> ==============Java Object Array >>> JSON Array ==================<?xml version="1.0" encoding="UTF-8"?><a><e type="number">1</e><e type="string">a</e><e type="boolean">true</e><e type="string">A</e><e class="array"><e type="string">a</e><e type="string">b</e><e type="string">c</e></e><e class="array"><e type="boolean">true</e><e type="boolean">false</e><e type="boolean">true</e></e></a> <?xml version="1.0" encoding="UTF-8"?><a><e type="number">1</e><e type="string">a</e><e type="boolean">true</e><e type="string">A</e><e class="array"><e type="string">a</e><e type="string">b</e><e type="string">c</e></e><e class="array"><e type="boolean">true</e><e type="boolean">false</e><e type="boolean">true</e></e></a> ==============Java String >>> JSON ==================<?xml version="1.0" encoding="UTF-8"?><a><e type="string">json</e><e type="string">is</e><e type="string">easy</e></a> <?xml version="1.0" encoding="UTF-8"?><o><json type="string">is easy</json></o> <?xml version="1.0" encoding="UTF-8"?><a><e type="string">json</e><e type="string">is</e><e type="string">easy</e></a>

上面的节点名称有点乱，你可以通过setElementName设置节点名称
2、 将XML转换成Java对象
/*============================XML String >>>>> Java Object ==========================*//** * <b>function:</b>转换xml文档到java对象 * @author hoojo * @createDate Nov 28, 2010 3:00:27 PM */@Testpublic void readXML2Object() {    XMLSerializer xmlSerializer = new XMLSerializer();    fail("============== XML >>>> Java String Array ==================");    String[] sa = {"a", "b", "c"};    jsonArray = (JSONArray) xmlSerializer.read(xmlSerializer.write(JSONArray.fromObject(sa)));    fail(jsonArray.toString());        String[] s = (String[]) JSONArray.toArray(jsonArray, String.class);    fail(s[0].toString());        fail("============== XML >>>> Java boolean Array ==================");    boolean[] bo = { true, false, true };    jsonArray = (JSONArray) xmlSerializer.read(xmlSerializer.write(JSONArray.fromObject(bo)));    bo = (boolean[]) JSONArray.toArray(jsonArray, boolean.class);    fail(bo.toString());    System.out.println(bo[0]);        jsonArray = (JSONArray) xmlSerializer.read(xmlSerializer.write(JSONSerializer.toJSON(bo)));    bo = (boolean[]) JSONArray.toArray(jsonArray, boolean.class);    fail(bo.toString());    System.out.println(bo[0]);        fail("==============Java Object Array >>> JSON Array ==================");    Object[] o = { 1, "a", true, 'A', sa, bo };    jsonArray = (JSONArray) xmlSerializer.read(xmlSerializer.write(JSONArray.fromObject(o)));    System.out.println(jsonArray.getInt(0));    System.out.println(jsonArray.get(1));    System.out.println(jsonArray.getBoolean(2));    jsonArray = (JSONArray) xmlSerializer.read(xmlSerializer.write(JSONSerializer.toJSON(o)));    System.out.println(jsonArray.get(4));    System.out.println(jsonArray.getJSONArray(5).get(0));    System.out.println(jsonArray.get(5));        fail("==============Java String >>> JSON ==================");    jsonArray = (JSONArray) xmlSerializer.read(xmlSerializer.write(JSONArray.fromObject("['json','is','easy']")).toString());    s = (String[]) JSONArray.toArray(jsonArray, String.class);    fail(s[0].toString());    jsonObject = (JSONObject) xmlSerializer.read(xmlSerializer.write(JSONObject.fromObject("{'json':'is easy'}")).toString());    Object obj = JSONObject.toBean(jsonObject);    System.out.println(obj);    jsonArray = (JSONArray) xmlSerializer.read(xmlSerializer.write(JSONSerializer.toJSON("['json','is','easy']")).toString());    s = (String[]) JSONArray.toArray(jsonArray, String.class);    fail(s[1].toString());}

主要运用到XMLSerializer的read方法，将xml内容读取后，转换成Java对象。运行后结果如下：
============== XML >>>> Java String Array ==================
["a","b","c"]
a
============== XML >>>> Java boolean Array ==================
[Z@15856a5
true
[Z@79ed7f
true
==============Java Object Array >>> JSON Array ==================
1
a
true
["a","b","c"]
true
["true","false","true"]
==============Java String >>> JSON ==================
json
net.sf.ezmorph.bean.MorphDynaBean@c09554[
  {json=is easy}
]
is
3、 将xml的字符串内容，转换成Java的Array对象
@Testpublic void testReadXml2Array() {    String str = "<a class=\"array\">" +             "<e type=\"function\" params=\"i,j\">" +            "return matrix[i][j];" +              "</e>" +          "</a>";    JSONArray json = (JSONArray) new XMLSerializer().read(str);    fail(json.toString());   }

上面是一段xml字符串格式的文档，将其转换为JSONArray对象。转换后结果如下：
[function(i,j){ return matrix[i][j]; }]
就是一个数组；