迭代解析JSON简单实例

由于项目中遇到了这个问题，所以在这里记录一下。

比如：请求到的JSON串：

{
    "msg":"数据获取成功",
    "success":true,
    "data":[
        {
            "id":40,
            "name":"美术",
            "parentId":4,
            "photoUrl":"art@2x.png",
            "enable":1,
            "pos":2,
            "visitUrl":"sysPxbPage",
            "ord":0,
            "related":"1",
            "moduleType":"",
            "cateList":[
                {
                    "id":155,
                    "moduleId":40,
                    "name":"雕塑",
                    "photoUrl":"sysPxbPage/artPage/ds@2x.png",
                    "enable":1,
                    "createTime":1508498216000
                }
            ]
        },
        {
            "id":41,
            "name":"书法",
            "parentId":4,
            "photoUrl":"writing@2x.png",
            "enable":1,
            "pos":2,
            "visitUrl":"sysPxbPage",
            "ord":0,
            "related":"1",
            "moduleType":"",
            "cateList":[
                {
                    "id":158,
                    "moduleId":41,
                    "name":"纂刻",
                    "photoUrl":"sysPxbPage/writingPage/zk@2x.png",
                    "enable":1,
                    "createTime":1508498326000
                }
            ]
        }
}

比如：获取photoUrl的值：

JSONObject da = resultJson.getJSONObject("data");

JSONArray d = da .JSONArray("cateList");

JSONObject ob = (JSONObject)d.get(0);    // 这里是得到第一个对象

String result = ob.getString("photoUrl");

若是获取success的值：

resultJson.getBooleanValue("success")；