利用jquery将json字符串转换为json对象

一行代码即可搞定，绕了n个圈才找到

var jsonString ='{"jsonSupportBean":{"errorMessage":"Duplicate label group name of 'Kevin6666'.","message":null,"result":null,"success":false}}';

var json = $.parseJSON(jsonString );

alert(json.jsonSupportBean.success);