Android开源框架之okhttp

OKHttp是一款高效的HTTP客户端，支持连接同一地址的链接共享同一个socket，通过连接池来减小响应延迟，还有透明的GZIP压缩，请求缓存等优势，其核心主要有路由、连接协议、拦截器、代理、安全性认证、连接池以及网络适配，拦截器主要是指添加，移除或者转换请求或者回应的头部信息

这个库也是square开源的一个网络请求库(okhttp内部依赖okio)因此，使用okhttp框架时除了下载okhttp的jar包还需要下载okio的jar包。
下载地址:http://square.github.io/okhttp/

代码展示:

package com.example.dell.myapplication;

import android.app.job.JobInfo;
import android.app.job.JobScheduler;
import android.content.ComponentName;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.AsyncTask;
import android.os.Handler;
import android.os.Message;
import android.os.PowerManager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import org.json.JSONObject;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.HttpURLConnection;
import java.net.URL;

import okhttp3.MediaType;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;

public class MainActivity extends AppCompatActivity implements View.OnClickListener{

    private Button btn_get;
    private Button btn_post;
    private TextView tv_result;
    public static final MediaType JSON
            = MediaType.parse("application/json; charset=utf-8");//配置json的编码

    /**
     * get请求
     */
    private static final int GET = 1;
    /**
     * post请求
     */
    private static final int POST = 2;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        btn_get = (Button) findViewById(R.id.btn_get);
        btn_post = (Button) findViewById(R.id.btn_post);
        tv_result = (TextView) findViewById(R.id.tv_result);
        //设置点击事件
        btn_get.setOnClickListener(this);
        btn_post.setOnClickListener(this);

    }

    @Override
    public void onClick(View v) {
        switch (v.getId()){
            case R.id.btn_get:
                getDataFromByGet();
                break;
            case R.id.btn_post:
                getDataFromByPost();
                break;
        }
    }

    private void getDataFromByGet() {
        //必须在子线程中请求
        new Thread(){
            @Override
            public void run() {
                super.run();
                try {
                    String resutl=get("http://api.m.mtime.cn/PageSubArea/TrailerList.api");
                    Message msg=Message.obtain();
                    msg.what=GET;
                    msg.obj=resutl;
                    handler.sendMessage(msg);
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }.start();
    }

    OkHttpClient client=new OkHttpClient();
    private Handler handler = new Handler(){
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            switch (msg.what){
                case GET://get请求
                    tv_result.setText(msg.obj.toString());
                    break;
                case POST://post请求
                    tv_result.setText(msg.obj.toString());
                    break;
            }
        }
    };

    private String get(String s) throws IOException {
        Request request=new Request.Builder()
                .url(s)
                .build();
        Response response=client.newCall(request).execute();
        return response.body().string();
    }

    private void getDataFromByPost() {

        new Thread(){
            @Override
            public void run() {
                super.run();
                try {
                    String resutl=post("http://api.m.mtime.cn/PageSubArea/TrailerList.api","");
                    Message msg=Message.obtain();
                    msg.what=POST;
                    msg.obj=resutl;
                    handler.sendMessage(msg);
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }.start();
    }

    private String post(String url,String json) throws IOException {
        RequestBody body=RequestBody.create(JSON,json);
        Request request=new Request.Builder()
                .url(url)
                .post(body)
                .build();
        Response response=client.newCall(request).execute();
        return response.body().string();
    }
}

运行截图: