java json与数组之间的转换

   String sJson = "[{'player_id':'301601055','coin':'2','result':'1'},{'player_id':'301601056','coin':'2','result':'1'},{'player_id':'301601057','coin':'4','result':'1'}]"; 
   JSONArray jsonArray = (JSONArray) JSONSerializer.toJSON( sJson );  

   system.out.println(jsonArray);

输出：[{"player_id":"301601055","coin":"2","result":"1"},{"player_id":"301601056","coin":"2","result":"1"},{"player_id":"301601057","coin":"4","result":"1"}]