奇葩json结构解析--key是数字的json处理

json结构如下：

{
    "ret": "ok",
    "data": {
        "57230": {
            "cat_id": "57230",
            "alpha": "",
            "title": "一汽-大众奥迪",
            "malpha": "Y",
            "catpid": "57229",
            "catType": "2",
            "child": [
                {
                    "cat_id": "57233",
                    "alpha": "A",
                    "title": "奥迪Q5",
                    "malpha": null,
                    "catpid": "57230",
                    "catType": "3",
                    "Priced": false
                },
                {
                    "cat_id": "126193",
                    "alpha": "A",
                    "title": "奥迪Q3",
                    "malpha": null,
                    "catpid": "57230",
                    "catType": "3",
                    "Priced": false
                },
                {
                    "cat_id": "126537",
                    "alpha": "A",
                    "title": "奥迪A3",
                    "malpha": null,
                    "catpid": "57230",
                    "catType": "3",
                    "Priced": false
                },
                {
                    "cat_id": "57231",
                    "alpha": "A",
                    "title": "奥迪A4L",
                    "malpha": null,
                    "catpid": "57230",
                    "catType": "3",
                    "Priced": false
                },
                {
                    "cat_id": "57232",
                    "alpha": "A",
                    "title": "奥迪A6L",
                    "malpha": null,
                    "catpid": "57230",
                    "catType": "3",
                    "Priced": true
                }
            ]
        },
        "success": true
    }
    }

"data"下面的数字部分是个list,结构相同，但是数字可能会发生变化，因为公司业务原因，不可能在后台统一数字部分的内容，这种结构遂蛋疼。不能直接利用gson这种直接去处理，gsonformat生成也会parse err。

但是活得干，问题得解决，如何解决呢：

如下就是解决方式，注意红色部位，然后就可以处理数字对应的valuse的内容，利用gson去解析：

if ( !isNull( response ) )
{
    try {
        JSONObject jsonObject0 = new JSONObject(
            response.trim() );
        JSONObject jsonObject = new JSONObject(
            JsonUtil.getString( jsonObject0, "data" ) );
        boolean isSuccess = JsonUtil.getBoolean( jsonObject,
                             "success" );
        childEntities.clear();
        if ( isSuccess )
        {
            Iterator<?> keys = jsonObject.keys();
            while ( keys.hasNext() )
            {
                String key = (String) keys.next();
                if ( jsonObject.get( key ) instanceof JSONObject )
                {
                    String content = jsonObject.get( key )
                             .toString();
                    PriceManagerResult.DataEntity.ChildEntity
                        childEntity = Json.get()
                                  .toObject( content,
                                     PriceManagerResult.DataEntity.ChildEntity.class );
                    childEntities.add( childEntity );
                }
            }
        }
        KLog.i( childEntities.size() );
        mPriceManagerAdapter2.notifyDataSetChanged();
    } catch ( JSONException e ) {
        e.printStackTrace();
    }
}