json字符串,json对象,java对象互相转换

1.把JSON字符串转换为JAVA 对象
  JSONObject jsonobject = JSONObject.fromObject(jsonStr);
  User user= (User)JSONObject.toBean(object,User.class);

2. 把java对象转换成json对象,并转化为字符串
  JSONObject object = JSONObject.fromObject(user);
  Log4jInit.ysulogger.debug(object.toString());

3.把JSON字符串转换为JAVA 对象数组
  JSONArray json = JSONArray.fromObject(userStr);//userStr是json字符串
  List<User> users= (List<User>)JSONArray.toCollection(json, User.class);

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转载自www.cnblogs.com/archimedes-euler/p/10253935.html
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