Android Volley意外的響應代碼400與身體x-www-form-urlencoded

我想使用body x-www-form-urlencoded參數向其餘api發出POST請求。我已經嘗試了下面的代碼，但我得到錯誤代碼400. 我一直在試圖從幾小時調試，但獲得相同的響應。任何幫助將不勝感激。Android Volley意外的響應代碼400與身體x-www-form-urlencoded

public class LoginFragment extends Fragment { 

private static final String TAG = "LoginFragment"; 

EditText mUsername, mPassword; 
Button mLogin; 
String url = "abc"; 

@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 
    ViewGroup rootView = (ViewGroup) inflater.inflate(R.layout.fragment_login, container, false); 

    mUsername = (EditText) rootView.findViewById(R.id.login_name_edit_text); 
    mPassword = (EditText) rootView.findViewById(R.id.login_password_edit_text); 
    mLogin = (Button) rootView.findViewById(R.id.login_button); 

    mLogin.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      String username = mUsername.toString(); 
      String password = mPassword.toString(); 

      if (username.trim().length() > 0 && password.trim().length() > 0) { 
       checkLogin(username, password); 
      } else { 
       Toast.makeText(getContext(), "Please enter the credentials!", Toast.LENGTH_SHORT).show(); 
      } 
     } 
    }); 

    return rootView; 
} 

private void checkLogin(final String username, final String password) { 
    // Tag used to cancel the request 

    StringRequest strReq = new StringRequest(Request.Method.POST, 
      url, new Response.Listener<String>() { 

     @Override 
     public void onResponse(String response) { 
      Log.d(TAG, "Login Response: " + response.toString()); 

      try { 
       JSONObject jObj = new JSONObject(response); 
       boolean error = jObj.getBoolean("error"); 

       // Check for error node in json 
       if (!error) { 
        // user successfully logged in 

        // Launch main activity 
        Intent intent = new Intent(getActivity(), 
          MainActivity.class); 
        startActivity(intent); 
        getActivity().finish(); 
       } else { 
        // Error in login. Get the error message 
        String errorMsg = jObj.getString("message"); 
        Toast.makeText(getContext(), 
          errorMsg, Toast.LENGTH_LONG).show(); 
       } 
      } catch (JSONException e) { 
       // JSON error 
       e.printStackTrace(); 
      } 

     } 
    }, new Response.ErrorListener() { 

     @Override 
     public void onErrorResponse(VolleyError error) { 
      Log.e(TAG, "Login Error: " + error.getMessage()); 
      Toast.makeText(getContext(), 
        error.getMessage(), Toast.LENGTH_LONG).show(); 
     } 
    }) { 

     @Override 
     public String getBodyContentType() { 
      return "application/x-www-form-urlencoded; charset=UTF-8"; 
     } 

     @Override 
     protected Map<String, String> getParams() throws AuthFailureError { 
      // Posting parameters to login url 
      Map<String, String> params = new HashMap<String, String>(); 
      params.put("username", username); 
      params.put("password", password); 

      return params; 
     } 

    }; 

    // Adding request to request queue 
    MySingleton.getInstance(getContext()).addToRequestQueue(strReq); 
}

}

來源

2017-04-03 Shashank Singh

在https://pastebin.com/5k9WaU6E試試我的示例代碼。看起來像你有類似的問題http://stackoverflow.com/questions/42827279/basicnetwork-performrequest-unexpected-response-code-400-post#comment72767244_42827279，注意評論 – BNK

仍然會出現相同的錯誤 –

這是一個愚蠢的錯誤我寫的，而不是mUsername.getText mUsername.toString（）（）

來源

2017-04-22 09:01:52

Android Volley意外的響應代碼400與身體x-www-form-urlencoded

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