使用json-lib[转]
下载 到http://json-lib.sourceforge.net下载json-lib-1.1-jdk15.jar，运行json还需要的包有：commons-lang.jar、commons-logging.jar，commons-beanutils.jar、xom-1.0-2005-01-05.jar、ezmorph-1.0.1.jar，可在http://www.docjar.com搜索下载。 l 转化数组和集合 boolean[] boolArray = new boolean[]{true,false,true}; JSONArray jsonArray = JSONArray.fromObject(boolArray); System.out.println(jsonArray); 输出：[true,false,true] List list = new ArrayList(); list.add(“第一个”); list.add(“第二个”); JSONArray jsonArray = JSONArray.fromObject(list); System.out.println(jsonArray); 输出：[“第一个”, “第二个”] JSONArray jsonArray3 = JSONArray.fromObject("['json','is','easy']"); System.out.println(jsonArray3); 输出：[“json”, “is”, “'easy'”] l 转化对象转化MapMap map = new HashMap();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];}"); JSONObject json = JSONObject.fromObject(map);System.out.println(json); 输出：[“name”: “json”, “bool”:true, “int”,1, “arr”:[ “a”, “b”], “func”:function(i){return this.arr[i];}] 转化BeanMyBean.javapublic class MyBean { private String name = "json"; private int pojoId = 1; private String func1 = "function(i){return this.options[i]}"; private JSONFunction func2 = new JSONFunction(new String[]{"i"},"return this.options[i];"); //以下为get、set方法} MyBean bean = new MyBean();JSONObject jsonObject = JSONObject.fromObject(bean);System.out.println(jsonObject); 输出：{"func1":function(i){return this.options[i]},"pojoId":1,"name":"json","func2":function(i){ return this.options[i]; } 从JSON到Beans//转化为动态beanString myjson = "{name=/"json/",bool:true,int:1,double:2.2,function:function(a){return a;},array:[1,2]}";JSONObject json1 = JSONObject.fromString(myjson);Object bean1 = JSONObject.toBean(json1); 由JSON生成XMLJSONObject json = new JSONObject(true);XMLSerializer xmlSerializer = new XMLSerializer();String xml = xmlSerializer.write(json);System.out.println("xml:" + xml); 输出：xml:<?xml version="1.0" encoding="UTF-8"?><o null="true"/>JSONObject json2 = JSONObject.fromObject("{/"name/":/"json/",/"bool/":true,/"int/":1}");String xml2 = xmlSerializer.write(json2);System.out.println("xml2:" + xml2); 输出：xml2:<?xml version="1.0" encoding="UTF-8"?><o><bool type="boolean">true</bool><int type="number">1</int><name type="string">json</name></o> JSONArray json3 = JSONArray.fromObject("[1,2,3]"); String xml3 = xmlSerializer.write(json3); System.out.println("xml3:" + xml3); 输出：xml3:<?xml version="1.0" encoding="UTF-8"?><a><e type="number">1</e><e type="number">2</e><e type="number">3</e></a>