json遍历

article/2025/10/3 21:36:06

遍历json对象：

无规律：

<script>
var json = [{dd:'SB',AA:'东东',re1:123},{cccc:'dd',lk:'1qw'}];
for(var i=0,l=json.length;i<l;i++){
for(var key in json[i]){
alert(key+':'+json[i][key]);
}
}
</script>

有规律：

packJson = [
{"name":"nikita", "password":"1111"},{"name":"tony", "password":"2222"}];for(var p in packJson){//遍历json数组时，这么写p为索引，0,1alert(packJson[p].name + " " + packJson[p].password);}

也可以用这个：

for(var i = 0; i < packJson.length; i++){alert(packJson[i].name + " " + packJson[i].password);}

遍历json对象

myJson = {"name":"caibaojian", "password":"1111"};for(var p in myJson){//遍历json对象的每个key/value对,p为keyalert(p + " " + myJson[p]);}

java 解析 json 遍历未知key

1、——————————————————————————————————————————————————————————————
 import net.sf.json.JSONObject;  String json = "{\"name\":\"lss\"}";  JSONObject jsonObj = JSONObject.fromObject(json);  String name = jsonObj.getString("name");  Iterator it = jsonObj.keys();  List<String> keyListstr = new ArrayList<String>();  while(it.hasNext()){  key = (String) it.next();
       　　　　  value = jsonObject.getString(key);}

2、 {"info":[{"goodsId":"1234","goodsq":"10"},{"goodsId":"5678","goodsq":"20"}]}

2、———————————————————————————————————————————————————————————————

JSONObject jsonObject = new JSONObject(jsonString);JSONArray jsonArray =jsonObject.getJSONArray(“info”);for (int i = 0; i < jsonArray.length(); i++) {JSONObject jo = jsonArray.getJSONObject(i);System.out.println(jo.getString("goodsld"));System.out.println(jo.getString("goodsq"));}