Question

This是我的API，here is the POJO to the JSON 我想知道如何使用Volley存储JSON对象。

到目前为止，这是我的代码：

JsonArrayRequest TweetReq = new JsonArrayRequest(URL1,
            new Response.Listener<JSONArray>()
{
    @Override
    public void onResponse(JSONArray response) {
        Log.d("WORKING RESPONSE:::::", response.toString());
        //hidePDialog();

        SharedPreferences Tempx = getSharedPreferences("ActivitySession", Context.MODE_PRIVATE);
        SharedPreferences.Editor edx = Tempx.edit();
        edx.putString("GSON_FEED", response.toString());
        edx.apply();

        Gson gson = new Gson();
        JsonParser parser = new JsonParser();
        JsonArray jArray = parser.parse(Tempx.getString("GSON_FEED","")).getAsJsonArray();

        //ArrayList<MainPojo> uid = new ArrayList<MainPojo>();

        for(JsonElement obj : jArray )
        {
            MainPojo cse = gson.fromJson( obj , MainPojo.class);
            TweetList.add(cse);
        }
        mAdapter.notifyDataSetChanged();

        // Parsing json

    }
}, new Response.ErrorListener() {
    @Override
    public void onErrorResponse(VolleyError error)
    {
        SharedPreferences Tempx = getSharedPreferences("ActivitySession", Context.MODE_PRIVATE);

        try{
            Gson gson = new Gson();
            JsonParser parser = new JsonParser();
            JsonArray jArray = parser.parse(Tempx.getString("GSON_FEED","")).getAsJsonArray();

            for(JsonElement obj : jArray )
            {
                MainPojo cse = gson.fromJson( obj , MainPojo.class);
                TweetList.add(cse);
            }
            mAdapter.notifyDataSetChanged();

            VolleyLog.d("EDUKNOW::::", "Error: " + error.getMessage());
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }

        //hidePDialog();
    }
});

这会返回IllegalStateException说This is not a JSON Array，这是有道理的，但我如何将其存储为Object？

EDIT1 添加了logcat。

01-08 20:01:08.688 4764-4764/com.fossasia.loklak W/System.err: java.lang.IllegalStateException: This is not a JSON Array.
01-08 20:01:08.688 4764-4764/com.fossasia.loklak W/System.err:     at com.google.gson.JsonElement.getAsJsonArray(JsonElement.java:106)
01-08 20:01:08.688 4764-4764/com.fossasia.loklak W/System.err:     at com.fossasia.loklak.Activities.MainActivity$2.onErrorResponse(MainActivity.java:105)
01-08 20:01:08.688 4764-4764/com.fossasia.loklak W/System.err:     at com.android.volley.Request.deliverError(Request.java:564)
01-08 20:01:08.688 4764-4764/com.fossasia.loklak W/System.err:     at com.android.volley.ExecutorDelivery$ResponseDeliveryRunnable.run(ExecutorDelivery.java:101)
01-08 20:01:08.688 4764-4764/com.fossasia.loklak W/System.err:     at android.os.Handler.handleCallback(Handler.java:739)
01-08 20:01:08.688 4764-4764/com.fossasia.loklak W/System.err:     at android.os.Handler.dispatchMessage(Handler.java:95)
01-08 20:01:08.689 4764-4764/com.fossasia.loklak W/System.err:     at android.os.Looper.loop(Looper.java:148)
01-08 20:01:08.689 4764-4764/com.fossasia.loklak W/System.err:     at android.app.ActivityThread.main(ActivityThread.java:5417)
01-08 20:01:08.689 4764-4764/com.fossasia.loklak W/System.err:     at java.lang.reflect.Method.invoke(Native Method)
01-08 20:01:08.689 4764-4764/com.fossasia.loklak W/System.err:     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
01-08 20:01:08.689 4764-4764/com.fossasia.loklak W/System.err:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

Answer 1

try{
   JsonArray jArray = parser.parse(Tempx.getString("GSON_FEED","")).getAsJsonArray();
   for(JsonElement obj : jArray )
    {
        MainPojo cse = gson.fromJson( obj , MainPojo.class);
        TweetList.add(cse);
    }
}catch(Throwable e) {

    JsonElement obj = parser.parse(Tempx.getString("GSON_FEED","")).getAsJsonObject();
    MainPojo cse = gson.fromJson( obj , MainPojo.class);
    TweetList.add(cse);   

}

使用Volley存储JsonObject

1 个答案: