json数据与字符串的相互转化示例

var arr=[{id:'id',name:'Spring'},{id:'id2',name:'Jane'}]; 
var str=JSON.stringify(arr); 
 
结果："[{id:'id',name:'Spring'},{id:'id2',name:'Jane'}]" 

string转化为json: 
 代码如下:

var str="[{id:'id',name:'Spring'},{id:'id2',name:'Jane'}]"; 
var json=$.parseJSON(str); 
 
结果：[{id:'id',name:'Spring'},{id:'id2',name:'Jane'}]