关于JSON循环的问题

Question

小弟做了个struts2.1.6和JSON插件结合的例子.
后台的Action有一个Map的属性.采用jquery1.2.6中的Ajax Post请求.
结合后台返回了类似以下的JSON格式.{
"photoMap":
{"57":
{"menuid":null,"pattribute":1,"pbigname":"big1248081757843.JPG","pid":57,"pinfo":"不能复制吗？不能复制吗？不能复制吗？","pname":"不能复制吗？","psmaname":"small1248081757843.JPG","ptrname":"DSCF1038.JPG","puptime":"2009-07-20T17:22:38","purlpath":"\/image_per\/200907\/person"},
"56":
{"menuid":null,"pattribute":1,"pbigname":"big1248081680531.JPG","pid":56,"pinfo":"不能复制吗？不能复制吗？","pname":"不能复制吗？","psmaname":"small1248081680531.JPG","ptrname":"DSCF1008.JPG","puptime":"2009-07-20T17:21:21","purlpath":"\/image_per\/200907\/person"},
"62":
{"menuid":null,"pattribute":1,"pbigname":"big1248082855218.JPG","pid":62,"pinfo":"pattributepattribute","pname":"sfsadf","psmaname":"small1248082855218.JPG","ptrname":"DSCF1011.JPG","puptime":"2009-07-20T17:40:55","purlpath":"\/image_per\/200907\/person"}
}
}类似Map的一个JOSN格式
请高手帮我循环一下,拿到里面的"Key"和"Value".

Answer 1

photoMap.57.menuid那个57不太好，最好前面加上一个字母

Answer 2

你得自己去扩展把，javascript本身没有map的实现。
你可以写成数组形式，然后遍历

Answer 3

问题已解决eval("json="+data); 
for(var i in json) 
{ 
alert(i); 
var obj = json; for(var attr in obj ) 
{ 
alert("key:" + attr ); 
alert("value:" + obj[attr] ); 
} } 

Answer 4

var mapData = map["photoMap"]; 
for(var i in mapData) 
{ 
alert(i); 
var obj = mapData; for(var attr in obj ) 
{ 
alert("key:" + attr ); 
alert("value:" + obj[attr] ); }