Android studio 学习 之 OkHttp的封装工具类(包含上传下载)

首先导入依赖

implementation ‘com.squareup.okhttp3:okhttp:3.12.1’ //okhttp的依赖
implementation ‘com.squareup.okhttp3:logging-interceptor:3.8.0’ //拦截器的依赖

返回成功或失败的接口

public interface MyOkListiner {
    void onOK(String json);//成功
    void onError(String message);//错误
}

下载或上传文件时实现带有进度条的接口

public interface Myprogress {
    void onError(String message);//失败
    void onFinish();//成功
    void onProgress(int progress);//进度
}

工具类

import android.util.Log;

import com.example.okhttp830.listiner.MyOkListiner;
import com.example.okhttp830.listiner.Myprogress;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeUnit;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.FormBody;
import okhttp3.Interceptor;
import okhttp3.MediaType;
import okhttp3.MultipartBody;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;
import okhttp3.ResponseBody;
import okhttp3.logging.HttpLoggingInterceptor;

public class HttpUtils {

    private OkHttpClient okHttpClient;


    private HttpUtils(){//构造方法只会走一次
        //拦截器
        HttpLoggingInterceptor httpLoggingInterceptor = new HttpLoggingInterceptor(new HttpLoggingInterceptor.Logger() {
            @Override
            public void log(String message) {
                Log.i("xxx", "xxxx "+message);
            }
        });
        httpLoggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
        //token拦截器
        final Interceptor interceptor = new Interceptor() {
            @Override
            public Response intercept(Chain chain) throws IOException {
                Request request = chain.request().newBuilder().addHeader("token", "werfdwsadfdsaxdfbg").build();
                return chain.proceed(request);
            }
        };
        okHttpClient = new OkHttpClient.Builder()
                .readTimeout(60, TimeUnit.SECONDS)
                .connectTimeout(60, TimeUnit.SECONDS)
                .addInterceptor(interceptor)
                .addInterceptor(httpLoggingInterceptor)
                .build();
    }

    private static HttpUtils httpUtils=null;
    public static HttpUtils getInstance(){
        //双重锁
        if (httpUtils==null){
            synchronized (Object.class){//class对象在内存中只有一个
                if (httpUtils==null){
                    httpUtils = new HttpUtils();
                }
            }
        }
        return httpUtils;
    }

    //get获取数据
    public void doget(String url, final MyOkListiner listiner){
        Request request = new Request.Builder().url(url).get().build();
        Call call = okHttpClient.newCall(request);
        call.enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                listiner.onError(e.getMessage());
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                listiner.onOK(response.body().string());
            }
        });
    }

    //post获取数据
    public void dopost(String url, HashMap map, final MyOkListiner listiner){
        FormBody.Builder builder = new FormBody.Builder();

        Set> entrySet = map.entrySet();
        for (Map.Entry entry : entrySet){
            String key = entry.getKey();
            String value = entry.getValue();
            builder.add(key,value);
        }

        FormBody formBody = builder.build();
        Request request = new Request.Builder().url(url).post(formBody).build();

        Call call = okHttpClient.newCall(request);
        call.enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                listiner.onError(e.getMessage());
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                listiner.onOK(response.body().string());
            }
        });

    }

    //下载
    public void download(String url, final String path, final Myprogress myprogress){
        Request request = new Request.Builder().url(url).get().build();
        Call call = okHttpClient.newCall(request);
        call.enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                myprogress.onError(e.getMessage());
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                ResponseBody body = response.body();
                long max = body.contentLength();

                InputStream inputStream = body.byteStream();
                FileOutputStream outputStream = new FileOutputStream(path);
                byte[] b=new byte[1024];
                int len=0;
                int count=0;
                while ((len=inputStream.read(b))!=-1){
                    count+=len;
                    outputStream.write(b,0,len);
                    myprogress.onProgress((int) ((count*100)/max));
                }
                if (count>=max){
                    myprogress.onFinish();
                }
            }
        });
    }

    //上传
    public void upload(String url, String path, String filename, String type, final MyOkListiner listiner){
        MultipartBody body = new MultipartBody.Builder()
                .setType(MultipartBody.FORM)
                .addFormDataPart("file", filename, RequestBody.create(MediaType.parse(type), new File(path)))
                .build();

        Request request = new Request.Builder().url(url).post(body).build();

        Call call = okHttpClient.newCall(request);
        call.enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                    listiner.onError(e.getMessage()
                );
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                    listiner.onOK(response.body().string());
            }
        });
    }
}

调用工具类演示
xml布局

activity代码

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.ProgressBar;

import com.example.okhttp830.listiner.MyOkListiner;
import com.example.okhttp830.listiner.Myprogress;
import com.example.okhttp830.utils.HttpUtils;

import java.util.HashMap;

public class Main2Activity extends AppCompatActivity {
    private Button okGet;
    private Button okPost;
    private Button up;
    private Button down;
    private ProgressBar pro;
    private static final String TAG = "Main2Activity";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);

        okGet = (Button) findViewById(R.id.ok_get);
        okPost = (Button) findViewById(R.id.ok_post);
        up = (Button) findViewById(R.id.up);
        down = (Button) findViewById(R.id.down);
        pro = (ProgressBar) findViewById(R.id.progress);

//get获取数据
        okGet.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                get();
            }
        });
        //post获取数据
        okPost.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                post();
            }
        });
        //下载
        down.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                download();
            }
        });
        //上传
        up.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                upload();
            }
        });
    }
    private void get(){
        HttpUtils.getInstance().doget("http://api.yunzhancn.cn/api/app.interface.php?siteid=78703&itemid=2&act=ad_app", new MyOkListiner() {
            @Override
            public void onOK(String json) {
                Log.i(TAG, "onOK: "+json);
            }

            @Override
            public void onError(String message) {
                Log.i(TAG, "onError: "+message);
            }
        });
    }
    private void post(){
        HashMap map = new HashMap<>();
        map.put("itemid","2");
        map.put("act","ad_app");
        HttpUtils.getInstance().dopost("http://api.yunzhancn.cn/api/app.interface.php?siteid=78703&", map, new MyOkListiner() {
            @Override
            public void onOK(String json) {
                Log.i(TAG, "onOK: "+json);
            }

            @Override
            public void onError(String message) {
                Log.i(TAG, "onError: "+message);
            }
        });
    }
    private void download(){
        HttpUtils.getInstance().download("https://vd3.bdstatic.com/mda-hkpwq17u3qwybp5d/mda-hkpwq17u3qwybp5d.mp4?auth_key=1565706208-0-0-b8db557efc8a60b424c1af965b2f99c1&bcevod_channel=searchbox_feed&pd=bjh", "/sdcard/831.MP4", new Myprogress() {
            @Override
            public void onError(String message) {
                Log.i(TAG, "onError: "+message);
            }

            @Override
            public void onFinish() {
                Log.i(TAG, "onFinish: 成功");
            }

            @Override
            public void onProgress(int progress) {
                pro.setProgress(progress);
            }
        });
    }
    private void upload(){
        HttpUtils.getInstance().upload("http://169.254.152.180/test/", "/sdcard/78056f9659ee3d6dac690e2d4d166d224e4ade67.jpg", "yry.jpg", "image.jpg", new MyOkListiner() {
            @Override
            public void onOK(String json) {
                Log.i(TAG, "onOK: "+json);
            }

            @Override
            public void onError(String message) {
                Log.i(TAG, "onError: "+message);
            }
        });
    }
}