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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：
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：
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：
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：
如果你还不了解JSON是什么？那么你应该可以看看
2、 要转换的JavaBean的代码如下：
package com.hoo.&public class Student {
private int
private B&
//setter、getter
public String toString() {
return this.name + "#" + this.id + "#" + this.address + "#" + this.birthday + "#" + this.
Birthday.java
package com.hoo.&public class Birthday {
public Birthday(String birthday) {
this.birthday =
//setter、getter
public Birthday() {}
public String toString() {
return this.
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.&import java.lang.reflect.InvocationTargetEimport java.util.ArrayLimport java.util.Cimport java.util.Dimport java.util.HashMimport java.util.Iimport java.util.Limport java.util.Mimport java.util.Simport net.sf.json.JSON;import net.sf.json.JSONAimport net.sf.json.JSONFimport net.sf.json.JSONOimport net.sf.json.JSONSimport net.sf.json.JsonCimport net.sf.json.processors.JsonValuePimport net.sf.json.util.PropertyFimport net.sf.json.xml.XMLSimport mons.beanutils.PropertyUimport org.junit.Aimport org.junit.Bimport org.junit.Timport com.hoo.entity.Bimport com.hoo.entity.S&/** * &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, :39 PM * @file JsonlibTest.java * @package com.hoo.test * @project WebHttpUtils * @blog http://blog.csdn.net/IBM_hoojo * @email hoojo_@ * @version 1.0 */@SuppressWarnings({ "deprecation", "unchecked" })public class JsonlibTest {
private JSONArray jsonArray =
private JSONObject jsonObject =
private Student bean =
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("");
bean.setBirthday(day);
public void destory() {
jsonArray =
jsonObject =
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：
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, :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();
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())) {
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 + "@@";
//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":""},"email":"email","id":1,"name":"haha"}==============Java Bean &&& JSON Array==================[{"address":"address","birthday":{"birthday":""},"email":"email","id":1,"name":"haha"}]==============Java Bean &&& JSON Object =================={"address":"address","birthday":{"birthday":""},"email":"email","id":1,"name":"haha"}========================JsonConfig========================key:birthday{"address":"address","birthday":"##修改过的日期","email":"email","id":1,"name":"haha"}##修改过的日期haha#1#address#null#email#####################JsonPropertyFilter############################haha#1#address##email%%%address--addresshaha#1#address##email%%%birthday--haha#1#address##email%%%email--emailhaha#1#address##email%%%id--1haha#1#address##email%%%name--haha{"address":"address","email":"email","id":1,"name":"haha"}#################JavaPropertyFilter##################address@address#null#0#null#null#nullbirthday@##修改过的日期#null#0#address#null#nullemail@email#null#0#address#null#nullid@1#null#0#address#null#nullname@haha#null#0#address#null#nullStudent: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, :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":""},"email":"email","id":1,"name":"jack"},{"address":"address","birthday":{"birthday":""},"email":"email","id":1,"name":"jack"}][{"address":"address","birthday":{"birthday":""},"email":"email","id":1,"name":"jack"},{"address":"address","birthday":{"birthday":""},"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, :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":""},"email":"email","id":1,"name":"jack"},"int":1,"B":{"address":"address","birthday":{"birthday":""},"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":""},"email":"email","id":1,"name":"jack"},"int":1,"B":{"address":"address","birthday":{"birthday":""},"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":""},"email":"email","id":1,"name":"jack"},"int":1,"B":{"address":"address","birthday":{"birthday":""},"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, :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 ==================paramdoSomethingWithParam(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\":\"\"}," +
"\"email\":\"\",\"id\":22,\"name\":\"tom\"}";/** * &b&function:&/b&将json字符串转化为java对象 * @author hoojo * @createDate Nov 28, :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##
2、 将json字符串转换成动态Java对象(MorphDynaBean)
private String json = "{\"address\":\"chian\",\"birthday\":{\"birthday\":\"\"},"+
"\"email\":\"\",\"id\":22,\"name\":\"tom\"}";&@Testpublic void readJSON2DynaBean() {
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 =============chiantom
3、 将json字符串转成Java的Array数组
private String json = "{\"address\":\"chian\",\"birthday\":{\"birthday\":\"\"},"+
"\"email\":\"\",\"id\":22,\"name\":\"tom\"}";&@Testpublic void readJSON2Array() {
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":""},"email":"","id":22,"name":"tom"}1{"address":"chian","birthday":{"birthday":""},"email":"","id":22,"name":"tom"}{"address":"chian","birthday":{"birthday":""},"email":"","id":22,"name":"tom"}1tom#22#chian##
4、 将JSON字符串转成Java的List集合
private String json = "{\"address\":\"chian\",\"birthday\":{\"birthday\":\"\"},"+
"\"email\":\"\",\"id\":22,\"name\":\"tom\"}";&@Testpublic void readJSON2List() {
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 ==================1tom#22#chian##1net.sf.ezmorph.bean.MorphDynaBean@141b571[
{id=22, birthday=net.sf.ezmorph.bean.MorphDynaBean@b23210[
{birthday=}], address=chian, email=, name=tom}]
5、 将json字符串转换成Collection接口
private String json = "{\"address\":\"chian\",\"birthday\":{\"birthday\":\"\"},"+
"\"email\":\"\",\"id\":22,\"name\":\"tom\"}";&@Testpublic void readJSON2Collection() {
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 ==================11tom#22#chian##
6、 将json字符串转换成Map集合
@Testpublic void readJSON2Map() {
fail("==============JSON Arry String &&& Java Map ==================");
json = "{\"arr\":[\"a\",\"b\"],\"A\":{\"address\":\"address\",\"birthday\":{\"birthday\":\"\"},"+
"\"email\":\"email\",\"id\":1,\"name\":\"jack\"},\"int\":1,"+
"\"B\":{\"address\":\"address\",\"birthday\":{\"birthday\":\"\"},"+
"\"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##email, arr=[a, b], B=jack#1#address##email, int=1, name=json, bool=true}A:jack#1#address##emailarr:[a, b]B:jack#1#address##emailint:1name:jsonbool: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, :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"&&/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, :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@15856a5true[Z@79ed7ftrue==============Java Object Array &&& JSON Array ==================1atrue["a","b","c"]true["true","false","true"]==============Java String &&& JSON ==================jsonnet.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];" +
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；
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