Json对象没有在android中解析

I am trying to parse a json in my android app, I receive json properly but when I try to parse it it does not seem to parse fine!

我试图在我的Android应用程序中解析一个json，我正确地收到json但是当我尝试解析它时它似乎没有解析好！

this is the json i am receiving :

这是我收到的json：

   "GetAdResult": {
"Action": null,
"ActionValue": null,
"BgColor": "blue",
"CampId": 19,
"CampType": "cpm",
"ClickAddress": null,
"EndAnimation": null,
"ExplainText": "",
"ImageType": null,
"ImageUrlBanner": null,
"ImageUrlLargeBanner": null,
"ImageUrlMediumRectangle": null,
"ImageUrlFullBanner": null,
"ImageUrlLeaderBoard": null,
"LogoUrl": "",
"MainText": "",
"PackageName": "",
"ReplaceText": "",
"StartAnimation": null,
"VideoUrl": null,
"type":"ad"
"atag":null,
"message":"success",
"pixel":null,
"script":null,
"token":null
}

and this is how i am trying to parse it:

这就是我试图解析它的方式：

    public class JsonObjectSend
{
    private static final String TAG_action = "Action";
    private static final String TAG_acValue = "ActionValue";
    private static final String TAG_bg = "BgColor";
    private static final String TAG_id = "CampId";
    private static final String TAG_ctype = "CampType";
    private static final String TAG_adr = "ClickAddress";
    private static final String TAG_endAnim = "EndAnimation";
    private static final String TAG_expText = "ExplainText";
    private static final String TAG_imType = "ImageType";
    private static final String TAG_imgUBanner = "ImageUrlBanner";
    private static final String TAG_imgULBanner = "ImageUrlLargBanner";
    private static final String TAG_imgUMRect = "ImageUrlMediumRectange";
    private static final String TAG_imgUFBanner = "ImageUrlFullBanner";
    private static final String TAG_imgULeadBrd = "ImageUrlLeaderBoard";
    private static final String TAG_logoU = "LogoUrl";
    private static final String TAG_mainText = "MainText";
    private static final String TAG_packName = "PackageName";
    private static final String TAG_repText = "ReplaceText";
    private static final String TAG_startAnim = "StartAnimation";
    private static final String TAG_videoU = "VideoUrl";
    private static final String TAG_type = "type";
    private static final String TAG_atag = "atag";
    private static final String TAG_msg = "message";
    private static final String TAG_pix = "pixel";
    private static final String TAG_scrpt = "script";
    private static final String TAG_tkn = "token";

    public void sendobj()
    {
        JSONObject root = new JSONObject();
        JSONObject reqBody = new JSONObject();

        try {
            reqBody.put("DeviceId", "sdasda");
            reqBody.put("AppId", "ECC7BCE40126408386BCFCF8AB9187E7");
            reqBody.put("AdType", "text");
            reqBody.put("Location", "35.7209331,51.472983");
            reqBody.put("UserOperator", "Irancell");
            reqBody.put("Ip", "127.0.0.1");
            reqBody.put("NetworkType", "3G");
            reqBody.put("DeviceType", "Android");
            reqBody.put("DeviceBrand", "Samsung");
            reqBody.put("Width", "0");
            reqBody.put("Height", "0");
            reqBody.put("TestMode", "true");
            root.put("request", reqBody);

        }
        catch (JSONException e)
        {
            e.printStackTrace();
        }
        String tag_string_req = "Send_Object";

        JsonObjectRequest Req = new JsonObjectRequest(Request.Method.POST, AppConfig.API_URL, root, new Response.Listener<JSONObject>()
        {
            @Override
            public void onResponse(JSONObject response)
            {
                try
                {
                    JSONObject jObj = response;
                    JSONObject GetAdResult = jObj.getJSONObject("GetAdResult");
                    Log.d("GetAdResult", GetAdResult.toString());
                    String action = GetAdResult.getString(TAG_action);
                    String actionvalue = GetAdResult.getString(TAG_acValue);
                    String bg = GetAdResult.getString(TAG_bg);
                    String campid = GetAdResult.getString(TAG_id);
                    String camptype = GetAdResult.getString(TAG_ctype);
                    String clickadr = GetAdResult.getString(TAG_adr);
                    String endanim = GetAdResult.getString(TAG_endAnim);
                    String exptext = GetAdResult.getString(TAG_expText);
                    String imgtype = GetAdResult.getString(TAG_imType);
                    String imgurlbanner = GetAdResult.getString(TAG_imgUBanner);
                    String imgurllargebanner = GetAdResult.getString(TAG_imgULBanner);
                    String imgurlmedrectangle = GetAdResult.getString(TAG_imgUMRect);
                    String imgurlfullbanner = GetAdResult.getString(TAG_imgUFBanner);
                    String imgurlleaderboard = GetAdResult.getString(TAG_imgULeadBrd);
                    String logourl = GetAdResult.getString(TAG_logoU);
                    String maintext = GetAdResult.getString(TAG_mainText);
                    String packagename = GetAdResult.getString(TAG_packName);
                    String replacetext = GetAdResult.getString(TAG_repText);
                    String startenim = GetAdResult.getString(TAG_startAnim);
                    String videourl = GetAdResult.getString(TAG_videoU);
                    String type = GetAdResult.getString(TAG_type);
                    String atag = GetAdResult.getString(TAG_atag);
                    String msg = GetAdResult.getString(TAG_msg);
                    String pixel = GetAdResult.getString(TAG_pix);
                    String script = GetAdResult.getString(TAG_scrpt);
                    String token = GetAdResult.getString(TAG_tkn);
                    Log.d("hg3uewygrhefkj","ufdjklc");
                    Log.d("action", action);
                    Log.d("actionvalue",actionvalue);
                    Log.d("Back",bg);
                    /*
                        String errorMsg = jObj.getString("error_msg");
                        Log.d("Debug", errorMsg);
                    }*/
                }
                catch (JSONException e)
                {
                    e.printStackTrace();
                }
            }
        }, new Response.ErrorListener() {

            @Override
            public void onErrorResponse(VolleyError error) {
                Log.d("error", "Error");
                Log.i("onErrorResponse", error.toString());
                NetworkResponse response = error.networkResponse;
                if (error instanceof ServerError && response != null) {
                    try {
                        String res = new String(response.data, HttpHeaderParser.parseCharset(response.headers));
                        // Now you can use any deserializer to make sense of data
                        JSONObject jsonbody = new JSONObject(res);
                    } catch (UnsupportedEncodingException e1) {
                        // Couldn't properly decode data to string
                        e1.printStackTrace();
                    } catch (JSONException e2) {
                        // returned data is not JSONObject?
                        e2.printStackTrace();
                    }
                }
            }
        });


        // Adding request to request queue
        AppController.getInstance().addToRequestQueue(Req, tag_string_req);
    }


}//class end

but when I try to Log.d the strings there is nothing in my logcat. how else am i suppose to do such thing?

但是当我尝试Log.d时，我的logcat中没有任何内容。我怎么想做这样的事呢？

4 个解决方案

#1

I will suggest you to crate a POJO to represent this JSON object, and use Gson library to parse.

我建议你创建一个POJO来表示这个JSON对象，并使用Gson库进行解析。

#2

I posted an answer on here that might be able to help you out. So in your case, if you want to get "BgColor", you can do this:

我在这里发布了一个可以帮助你的答案。所以在你的情况下，如果你想获得“BgColor”，你可以这样做：

public String parseJSONForTranslation(String jsonString) {
try {
    JSONObject object = (JSONObject) new JSONTokener(jsonString).nextValue();
    return object.getJSONObject("GetAdResult").getString("BgColor");
}
catch (JSONException e) {
    return null;
}

}

#3

In your json response, there is no GetAdResult object which you are actually referring to. With the above code, "GetAdResult" should come in response and it should be root element.

在您的json响应中，没有您实际引用的GetAdResult对象。使用上面的代码，“GetAdResult”应该响应，它应该是根元素。

Just remove "GetAdResult" because it is not there as root element. Try with -> JSONObject GetAdResult = jObj.getJSONObject();

只需删除“GetAdResult”，因为它不是根元素。尝试使用 - > JSONObject GetAdResult = jObj.getJSONObject（）;

It will give you json object and then you can get all the string elements.

它将为您提供json对象，然后您可以获取所有字符串元素。

#4

try below code

尝试以下代码

public String parseJSON(String jsonString) {

try {

尝试{

 JSONObject object = new JSONObject(jsonString);
 JSONObject adResultObj=object.optJSONObject("GetAdResult");
 String bgColor=adResiltObj.optString("BgColor");
 String campId=adResiltObj.optString("CampId");

} catch (Exception e) {

   return null;
}

In your code just replace your first line with my first line i.e replace below

在你的代码中，只需用我的第一行替换你的第一行，即在下面替换

JSONObject jObj = response;

JSONObject jObj =响应;

with

同

JSONObject object = new JSONObject(response);

JSONObject object = new JSONObject（response）;

#1