android-Volley JSONObjectRequest返回401錯誤

Question

我想發送POST請求與paramteres到服務器。但後參數始終爲空。

我試過幾個解決方案，從stackoverflow但它沒有奏效。

我得到意外的響應代碼401 11.urlname

Map<String, String> jsonParams = new HashMap<String, String>(); 
jsonParams.put("username", "test@mail.com"); 
jsonParams.put("usertype", "userType"); 
jsonParams.put("apikey", "key"); 

JsonObjectRequest myRequest = new JsonObjectRequest(Request.Method.POST,apiURL, new JSONObject(jsonParams), 

    new Response.Listener<JSONObject>() { 
     @Override 
     public void onResponse(JSONObject response) { 
      try { 
       String status=response.getString("status"); 

       if (status.equals("success")) 
       { 
        txtResponse.setText("Valid user"); 
       } 
       else { 
        txtResponse.setText("InValid USer"); 
       } 
      } catch (JSONException e) { 
       e.printStackTrace(); 
      } 

     } 
    }, 
    new Response.ErrorListener() { 
     @Override 
     public void onErrorResponse(VolleyError error) { 
     } 
    }) { 

    @Override 
    public Map<String, String> getHeaders() throws AuthFailureError { 
     HashMap<String, String> headers = new HashMap<String, String>(); 
     headers.put("Content-Type", "application/json; charset=UTF-8"); 
     return headers; 
    } 
}; 
AppController.getInstance().addToRequestQueue(myRequest, "tag"); 

我的應用程序控制器代碼是

public class AppController extends Application { 
    public static final String TAG = AppController.class.getSimpleName(); 

    private RequestQueue mRequestQueue; 

    private static AppController mInstance; 

    @Override 
    public void onCreate() { 
     super.onCreate(); 
     mInstance = this; 
    } 

    public static synchronized AppController getInstance() { 
     return mInstance; 
    } 

    public RequestQueue getRequestQueue() { 
     if (mRequestQueue == null) { 
      mRequestQueue = Volley.newRequestQueue(getApplicationContext()); 
     } 

     return mRequestQueue; 
    } 

    public <T> void addToRequestQueue(Request<T> req, String tag) { 
     req.setTag(TextUtils.isEmpty(tag) ? TAG : tag); 
     getRequestQueue().add(req); 
    } 

    public <T> void addToRequestQueue(Request<T> req) { 
     req.setTag(TAG); 
     getRequestQueue().add(req); 
    } 

    public void cancelPendingRequests(Object tag) { 
     if (mRequestQueue != null) { 
      mRequestQueue.cancelAll(tag); 
     } 
    } 
} 

Answer 1

如果您的問題沒有得到解決，你可以參考下面的代碼建立你的請求體（params）

private String buildRequestBody(Object content) { 
     String output = null; 
     if ((content instanceof String) || 
       (content instanceof JSONObject) || 
       (content instanceof JSONArray)) { 
      output = content.toString(); 
     } else if (content instanceof Map) { 
      Uri.Builder builder = new Uri.Builder(); 
      HashMap hashMap = (HashMap) content; 
      if (isValid(hashMap)) { 
       Iterator entries = hashMap.entrySet().iterator(); 
       while (entries.hasNext()) { 
        Map.Entry entry = (Map.Entry) entries.next(); 
        builder.appendQueryParameter(entry.getKey().toString(), entry.getValue().toString()); 
        entries.remove(); // avoids a ConcurrentModificationException 
       } 
       output = builder.build().getEncodedQuery(); 
      } 
     } 

     return output; 
    } 

然後...

Map<String, String> stringMap = new HashMap<>();  
    stringMap.put("username", "yourusername"); 
    stringMap.put("password", "yourpassword"); 
    ... 
    String requestBody = buildRequestBody(stringMap);