相关疑难解决方法(0)

我正在使用android Volley提出请求.所以我使用这段代码.我不明白一件事.我检查我的服务器,params始终为null.我认为getParams()不起作用.我该怎么做才能解决这个问题.

 RequestQueue queue = MyVolley.getRequestQueue();
        JsonObjectRequest jsObjRequest = new JsonObjectRequest(Request.Method.POST,SPHERE_URL,null,
                new Response.Listener<JSONObject>() {
                    @Override
                    public void onResponse(JSONObject response) {
                        System.out.println(response);
                        hideProgressDialog();
                    }
                },
                new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {
                      hideProgressDialog();
                    }
                }) {
            protected Map<String, String> getParams() throws AuthFailureError {
                Map<String, String> params = new HashMap<String, String>();
                params.put("id","1");
                params.put("name", "myname");
                return params;
            };
        };
        queue.add(jsObjRequest);

我正在尝试在Volley JsonObjectRequest中发送POST参数.最初,它通过遵循官方代码所说的传递包含JsonObjectRequest的构造函数中的参数的JSONObject来为我工作.然后它突然停止工作,我没有对以前工作的代码进行任何更改.服务器不再识别正在发送任何POST参数.这是我的代码:

RequestQueue queue = Volley.newRequestQueue(this);
String url ="http://myserveraddress";

// POST parameters
Map<String, String> params = new HashMap<String, String>();
params.put("tag", "test");

JSONObject jsonObj = new JSONObject(params);

// Request a json response from the provided URL
JsonObjectRequest jsonObjRequest = new JsonObjectRequest
        (Request.Method.POST, url, jsonObj, new Response.Listener<JSONObject>()
        {
            @Override
            public void onResponse(JSONObject response)
            {
                Toast.makeText(getApplicationContext(), response.toString(), Toast.LENGTH_SHORT).show();
            }
        },
        new Response.ErrorListener()
        {
            @Override
            public void onErrorResponse(VolleyError error)
            {
                Toast.makeText(getApplicationContext(), error.toString(), Toast.LENGTH_SHORT).show();
            }
        });

// Add the request to …

运行应用程序时出现以下错误:BasicNetwork.performRequest:意外的响应代码401

我需要传递电子邮件,密码和令牌来访问URL,但它无法正常工作

我上周开始学习android,我不太了解

package quest.testvolley;

import com.android.volley.AuthFailureError;
import com.android.volley.VolleyLog;
import com.kpbird.volleytest.R;

import android.app.ProgressDialog;
import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonObjectRequest;
import com.android.volley.toolbox.Volley;
import org.json.JSONArray;
import org.json.JSONObject;

import java.net.URL;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;

public class MainActivity extends Activity {

    private String TAG = this.getClass().getSimpleName();
    private ListView lstView;
    private RequestQueue mRequestQueue;
    private ArrayList<NewsModel> arrNews ;
    private LayoutInflater …

我正在尝试使用volley String请求从服务器访问令牌.我也尝试过制作JsonObjectRequest.两者都在下面.

public void getAuthenticationTokens(Object param1, final CustomListener<String> listener)
    {

        //String url = prefixURL + "this/request/suffix";
        String url = "https://lw.xxx.co.uk/connect/token";


        StringRequest request = new StringRequest(Request.Method.POST, url,
                new Response.Listener<String>()
                {
                    @Override
                    public void onResponse(String response) {
                        // response
                        Log.e("Response", response);
                    }
                },


                new Response.ErrorListener()
                {
                    @Override
                    public void onErrorResponse(VolleyError error) {
                        // error
                        Log.e("Error.Response", error.networkResponse.toString());
                    }
                }
        ) {



            @Override
            public Map<String, String> getHeaders() throws AuthFailureError {
                Map<String,String> params = new HashMap<>();
                params.put("Content-Type","application/x-www-form-urlencoded");
                //..add other headers
                return params;
            }

            @Override
            protected …