Volley的StringRequest()简用

volley jar包导入

AS在project视图下，copy volley.jar到libs，然后右键设置为libs jar。

配置一个Application

import android.app.Application;import com.android.volley.RequestQueue;import com.android.volley.toolbox.Volley;/** * Created by neal on 16-8-16. */public class MyApplication extends Application {    public static RequestQueue queue;    @Override    public void onCreate() {        super.onCreate();        queue = Volley.newRequestQueue(getApplicationContext());    }    public static RequestQueue getHttpQueue() {        return queue;    }}

配置自己的application和权限

 <uses-permission android:name="android.permission.INTERNET"/>    <application        android:name=".MyApplication"        android:allowBackup="true"        android:icon="@mipmap/ic_launcher"        android:label="@string/app_name"        android:supportsRtl="true"        android:theme="@style/AppTheme">        <activity android:name=".MainActivity">            <intent-filter>                <action android:name="android.intent.action.MAIN"/>                <category android:name="android.intent.category.LAUNCHER"/>            </intent-filter>        </activity>    </application>

StringRequest()简用，包括get和post ，这里我使用有道api接口，

http://fanyi.youdao.com/openapi?path=data-mode

#

import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.widget.Toast;import com.android.volley.AuthFailureError;import com.android.volley.Request;import com.android.volley.Response;import com.android.volley.VolleyError;import com.android.volley.toolbox.StringRequest;import java.util.HashMap;import java.util.Map;public class MainActivity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        String urlPost = "http://fanyi.youdao.com/openapi.do";        String urlGet = " http://fanyi.youdao.com/openapi.do?" +                "keyfrom=GetStringRequet&key=667837517&type=data&doctype=json&version=1.1&q=good ";        volley_Get(urlGet);        volley_Post(urlPost);    }    //volleyGet    private void volley_Get(String urlGet) {        StringRequest request = new StringRequest(Request.Method.GET, urlGet, new Response.Listener<String>() {            @Override            public void onResponse(String s) {                Toast.makeText(MainActivity.this, s, Toast.LENGTH_SHORT).show();            }        }, new Response.ErrorListener() {            @Override            public void onErrorResponse(VolleyError volleyError) {                Toast.makeText(MainActivity.this, "访问服务器失败", Toast.LENGTH_SHORT).show();            }        });        request.setTag("getMethod");        MyApplication.getHttpQueue().add(request);    }    //vollyPost    private void volley_Post(String urlPost) {        StringRequest request = new StringRequest(Request.Method.POST, urlPost, new Response.Listener<String>() {            @Override            public void onResponse(String s) {                Toast.makeText(MainActivity.this, s, Toast.LENGTH_SHORT).show();            }        }, new Response.ErrorListener() {            @Override            public void onErrorResponse(VolleyError volleyError) {                Toast.makeText(MainActivity.this, "访问服务器失败", Toast.LENGTH_SHORT).show();            }        }) {            @Override            protected Map<String, String> getParams() throws AuthFailureError {                HashMap<String, String> map = new HashMap<>();                map.put("keyfrom", "GetStringRequet");                map.put("key", "667837517");                map.put("type", "data");                map.put("doctype", "json");                map.put("version", "1.1");                map.put("q", "nice");                return map;            }        };        request.setTag("postMethod");        MyApplication.getHttpQueue().add(request);    }    @Override    protected void onStop() {        MyApplication.getHttpQueue().cancelAll("postMethod");        MyApplication.getHttpQueue().cancelAll("getMethod");        super.onStop();    }}