Volley的post请求

package com.bawei.demo.model.http;

import android.content.Context;

import com.android.volley.AuthFailureError;
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.StringRequest;
import com.android.volley.toolbox.Volley;
import com.bawei.demo.model.App;
import com.google.gson.Gson;

import java.util.HashMap;
import java.util.Map;

/**

• 作者： 姓名

• 日期： 2019/7/19 19:19
  */
  public class HttpUtil {
  private static HttpUtil httpUtil;
  private HttpUtil(){}
  public static HttpUtil getInstance(){
  if (httpUtil==null){
  return new HttpUtil();
  }
  return httpUtil;
  }
  public void getDate(String strUrl,final CallBack callBack,final Class bean,final HashMap map){
  RequestQueue requestQueue = Volley.newRequestQueue(App.context);
  StringRequest stringRequest = new StringRequest(Request.Method.POST, strUrl, new Response.Listener() {
  @Override
  public void onResponse(String response) {
  Gson gson = new Gson();
  B b = gson.fromJson(response,bean);
  callBack.success(b);
  }
  }, new Response.ErrorListener() {
  @Override
  public void onErrorResponse(VolleyError error) {

       }
   }){
       @Override
       protected Map getParams() throws AuthFailureError {
           return map;
       }
   };
   requestQueue.add(stringRequest);
  

  }
  public interface CallBack{
  void success(B bean);
  }
  }