MVP框架

net层

api地址

public interface Api {
    String AD_URL = "";
 
}

OKhttpUtils

package com.example.a1512qjd.net;

import android.os.Handler;
import android.os.Looper;

import java.io.IOException;
import java.util.concurrent.TimeUnit;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;

public class OkhttpUtils {
    private static OkhttpUtils instance;
    private final OkHttpClient okHttpClient;
    private final Handler handler;

    private OkhttpUtils() {
        okHttpClient = new OkHttpClient.Builder()
                .connectTimeout(15, TimeUnit.SECONDS)//连接超时
                .writeTimeout(20, TimeUnit.SECONDS)//写入超时
                .readTimeout(20, TimeUnit.SECONDS)//读取超时
                .build();
        handler = new Handler(Looper.getMainLooper());
    }

    public static OkhttpUtils getInstance() {
        if (instance == null) {
            instance = new OkhttpUtils();
        }
        return instance;
    }

    /**
     * GET请求
     *
     * @param url
     */
    public void doGet(String url, final OnNetListener onNetListener) {
        //创建Request
        final Request request = new Request.Builder()
                .url(url)
                .build();
        //发送请求
        okHttpClient.newCall(request).enqueue(new Callback() {
            @Override
            public void onFailure(Call call, final IOException e) {
                handler.post(new Runnable() {
                    @Override
                    public void run() {
                        onNetListener.onFailed(e);
                    }
                });
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                //拿到服务器返回的数据
                final String string = response.body().string();
                handler.post(new Runnable() {
                    @Override
                    public void run() {
                        onNetListener.onSuccess(string);
                    }
                });
            }
        });
    }
}

doPost请求

  public void doPost(String url, Map<String, String> params, final OnNetListener onNetListener) {

        FormBody.Builder builder = new FormBody.Builder();
        for (Map.Entry<String, String> entry : params.entrySet()) {
            builder.add(entry.getKey(), entry.getValue());
        }
        //创建FormBody
        FormBody formBody = builder.build();

        //创建Request
        Request request = new Request.Builder()
                .url(url)
                .post(formBody)
                .build();
        //请求数据
        okHttpClient.newCall(request).enqueue(new Callback() {
            @Override
            public void onFailure(Call call, final IOException e) {
                handler.post(new Runnable() {
                    @Override
                    public void run() {
                        onNetListener.onFailed(e);
                    }
                });
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                //拿到服务器返回的数据
                final String string = response.body().string();
                handler.post(new Runnable() {
                    @Override
                    public void run() {
                        onNetListener.onSuccess(string);
                    }
                });
            }
        });
    }

请求响应的接口

public interface OnNetListener {
    void onSuccess(String result);

    void onFailed(Exception e);
}

拦截器

import java.io.IOException;

import okhttp3.FormBody;
import okhttp3.HttpUrl;
import okhttp3.Interceptor;
import okhttp3.Request;
import okhttp3.Response;

public class MyInterceptor implements Interceptor {
    @Override
    public Response intercept(Chain chain) throws IOException {
        Response response;
        //区分是GET请求还是POST请求
        Request originRequest = chain.request();
        if ("GET".equals(originRequest.method())) {
            HttpUrl httpUrl = originRequest.url()
                    .newBuilder()
                    .addQueryParameter("source", "android")
                    .build();
            Request request = new Request.Builder().url(httpUrl).build();
            //发送请求
            response = chain.proceed(request);
        } else {
            FormBody.Builder builder = new FormBody.Builder();

            FormBody body = (FormBody) originRequest.body();
            int size = body.size();
            for (int i = 0; i < size; i++) {
                builder.add(body.name(i), body.value(i));
            }
            builder.add("source", "android");
            FormBody formBody = builder.build();
            Request request = new Request.Builder()
                    .url(originRequest.url())
                    .post(formBody)
                    .build();
            response = chain.proceed(request);

        }
        return response;
    }
}