/**

*将json格式的字符串解析成Map对象<li>

*json格式：{"name":"admin","retries":"3fff","testname"

*:"ddd","testretries":"fffffffff"}

*/

privatestaticHashMap<String,String>toHashMap(Objectobject)

{

HashMap<String,String>data=newHashMap<String,String>();

//将json字符串转换成jsonObject

JSONObjectjsonObject=JSONObject.fromObject(object);

Iteratorit=jsonObject.keys();

//遍历jsonObject数据，添加到Map对象

while(it.hasNext())

{

Stringkey=String.valueOf(it.next());

Stringvalue=(String)jsonObject.get(key);

data.put(key,value);

}

returndata;

}

把List转换成JSON数据：


List<UserInfo> list = new ArrayList<UserInfo>();

UserInfo user = new UserInfo(1001, "张三");

list.add(user);

list.add(user);

list.add(user);

JSONArray jsonArray = JSONArray.fromObject(list);

System.out.println(jsonArray);

把Map转换成json， 要使用jsonObject对象：


Map<String, Object> map = new HashMap<String, Object>();

map.put("userId", 1001);

map.put("userName", "张三");

map.put("userSex", "男");

JSONObject jsonObject = JSONObject.fromObject(map);

System.out.println(jsonObject);

http://jingyan.baidu.com/article/1709ad80b780f04634c4f0d9.html

对象转换成JSON：

UserInfo user = new UserInfo(1001,"张三");

JSONArray jsonArray = JSONArray.fromObject(user);

System.out.println( jsonArray )

;

将数组转换为JSON：

String[] arr = {"asd","dfgd","asd","234"};

JSONArray jsonarray = JSONArray.fromObject(arr);

System.out.println(jsonarray);