volley的post请求

//volley发送post请
 2     private void volleypost() {
 3         String url = "http://apis.juhe.cn/idcard/index?";
 4         StringRequest request = new StringRequest(Request.Method.POST, url, new Response.Listener<String>() {
 5             @Override
 6             public void onResponse(String s) {
 7 
 8                 Log.i("aa", "post请求成功" + s);
 9                 Toast.makeText(MainActivity2.this, s, Toast.LENGTH_LONG).show();
10             }
11         }, new Response.ErrorListener() {
12             @Override
13             public void onErrorResponse(VolleyError volleyError) {
14                 Log.i("aa", "post请求失败" + volleyError.toString());
15                 Toast.makeText(MainActivity2.this, volleyError.toString(), Toast.LENGTH_LONG).show();
16             }
17         }) {
18             @Override
19             protected Map<String, String> getParams() throws AuthFailureError {
20                 HashMap<String, String> map = new HashMap<>();
21                 map.put("key", "bb97bfce9edee938aeac99cb503b76db");
22                 map.put("cardno", "43052419910615");
23                 return map;
24             }
25         };
26         request.setTag("volleypost");
27         MyApplication.getHttpQueue().add(request);
28     }