Volley的get和post请求方式的使用

Volley的get和post请求 其中get和post还分别可以使用

StringRequest、JsonObjectRequest和 JsonArrayRequest三种方式，下面把整理的StringRequest和JsonObjectRequest两种方式的源码付在下面供大家参考：

1、volley请求之Get请求：

private void volley_Get() {

//使用StringRequest
// String url = "http://httpbin.org/get?site=code&network=tutsplus";
// StringRequest request = new StringRequest(Request.Method.GET, url, new Response.Listener<String>() {
// @Override
// public void onResponse(String s) {
// Log.e("onResponse===","onResponse-"+s);
// tv_content.setText(s);
// }
// }, new Response.ErrorListener() {
// @Override
// public void onErrorResponse(VolleyError volleyError) {
// tv_content.setText(volleyError.toString());
// }
// });
// request.setTag("abcGet");
// MyApplication.getHttpQueues().add(request);

 //使用JsonObjectRequest
 String url = "http://httpbin.org/get?site=code&network=tutsplus";
        JsonObjectRequest request = new JsonObjectRequest(Request.Method.GET, url, null, new Response.Listener<JSONObject>() {
@Override
            public void onResponse(JSONObject jsonObject) {
tv_content.setText("请求结果：\n" + jsonObject.toString());
            }
        }, new Response.ErrorListener() {
@Override
            public void onErrorResponse(VolleyError volleyError) {
                Toast.makeText(MainActivity.this, volleyError.toString(), Toast.LENGTH_LONG).show();
            }
        });
        request.setTag("abcGet");
        MyApplication.getHttpQueues().add(request);
    }

2、volley请求之Post请求：

private void volley_Post() {

//使用StringRequest
// String url = "http://httpbin.org/post?";
// StringRequest request = new StringRequest(Request.Method.POST, url, new Response.Listener<String>() {
// @Override
// public void onResponse(String s) {
//// tv_content.setText("请求结果：\n"+s);
// JSONObject jsonObject = null;
// try {
// jsonObject = new JSONObject(s);
// String m = jsonObject.getString("data");
// String n = jsonObject.getJSONObject("form").getString("site");
// tv_content.setText(m+n);
// } catch (JSONException e) {
// e.printStackTrace();
// }
// }
// }, new Response.ErrorListener() {
// @Override
// public void onErrorResponse(VolleyError volleyError) {
// tv_content.setText(volleyError.toString());
// }
// }){
// @Override
// protected Map<String, String> getParams() throws AuthFailureError {
// Map<String,String> hashMap = new HashMap<>();
// hashMap.put("site","code");
// hashMap.put("network","tutsplus");
// return hashMap;
// }
// };
// request.setTag("abcPost");
// MyApplication.getHttpQueues().add(request);

 //使用JsonObjectRequest
 String url = "http://httpbin.org/post?";
        HashMap<String, String> map = new HashMap<>();
        map.put("site", "code");
        map.put("network", "tutsplus");
        JSONObject object = new JSONObject(map);
        JsonObjectRequest request = new JsonObjectRequest(Request.Method.POST, url, object, new Response.Listener<JSONObject>() {
@Override
            public void onResponse(JSONObject jsonObject) {
tv_content.setText(jsonObject.toString());
            }
        }, new Response.ErrorListener() {
@Override
            public void onErrorResponse(VolleyError volleyError) {
tv_content.setText(volleyError.toString());
            }
        });
        request.setTag("abcPost");
        MyApplication.getHttpQueues().add(request);
    }

新建一个Application

public class MyApplication extends Application {

public static RequestQueue queues;

@Override
    public void onCreate() {
super.onCreate();
queues = Volley.newRequestQueue(getApplicationContext());
    }

public static RequestQueue getHttpQueues(){
return queues;
    }
}

同时还要注意在AndroidManifest.xml里添加网络权限

<!-- 网络权限 -->
<uses-permission android:name="android.permission.INTERNET"/>

在application里加上android:name=".MyApplication"