okhttp极简封装

首先添加依赖

    implementation 'com.squareup.okhttp3:okhttp:3.5.0'
    implementation 'com.google.code.gson:gson:2.8.0'

然后直接工具类

package com.pw.okhttps.httpUtils;
import android.annotation.SuppressLint;
import android.net.Uri;
import android.os.Handler;
import android.util.Log;
import com.google.gson.Gson;
import org.json.JSONObject;
import java.io.IOException;
import java.security.SecureRandom;
import java.security.cert.X509Certificate;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeUnit;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import androidx.annotation.NonNull;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;

/**
 * 网络请求管理类
 * 2019年01月30日09:14:30
 *
 * @author pw
 */
public class BstRequestClient {
    private static final String TAG = "BST.REQUEST==";
    private static BstRequestClient mInstance;
    private OkHttpClient mOkHttpClient;//okHttpClient 实例
    private Handler okHttpHandler;//全局处理子线程和M主线程通信
    private Gson mGson;
    private BstRequestClient() {
        OkHttpClient.Builder clientBuilder = new OkHttpClient.Builder()
                .connectTimeout(15, TimeUnit.SECONDS)  //设置超时时间
                .readTimeout(15, TimeUnit.SECONDS)     //设置读取超时时间
                .writeTimeout(15, TimeUnit.SECONDS);   //设置写入超时时间;

        //支持HTTPS请求，跳过证书验证
        clientBuilder.sslSocketFactory(createSSLSocketFactory());
        clientBuilder.hostnameVerifier(new HostnameVerifier() {
            @SuppressLint("BadHostnameVerifier")
            @Override
            public boolean verify(String hostname, SSLSession session) {
                return true;
            }
        });
        //初始化Handler
        okHttpHandler = new Handler();
        mGson = new Gson();
        mOkHttpClient = clientBuilder.build();
    }

    public static BstRequestClient getInstance() {
        if (mInstance == null) {
            synchronized (BstRequestClient.class) {
                if (mInstance == null) {
                    mInstance = new BstRequestClient();
                }
            }
        }
        return mInstance;
    }

    /**
     * 设置OKHTTP的配置参数
     *
     * @param connectTime 连接超时时间
     * @param readTime    读取超时时间
     * @param writeTime   写入超时时间
     */
    public void setHttpConfig(int connectTime, int readTime, int writeTime) {
        OkHttpClient.Builder clientBuilder = new OkHttpClient.Builder()
                .connectTimeout(connectTime, TimeUnit.SECONDS)//设置超时时间
                .readTimeout(readTime, TimeUnit.SECONDS)//设置读取超时时间
                .writeTimeout(writeTime, TimeUnit.SECONDS);//设置写入超时时间;

        //支持HTTPS请求，跳过证书验证
        clientBuilder.sslSocketFactory(createSSLSocketFactory());
        clientBuilder.hostnameVerifier(new HostnameVerifier() {
            @SuppressLint("BadHostnameVerifier")
            @Override
            public boolean verify(String hostname, SSLSession session) {
                return true;
            }
        });

        mOkHttpClient = clientBuilder.build();
    }

    public Gson getGson() {
        if (mGson == null)
            synchronized (BstRequestClient.class) {
                if (mGson == null)
                    mGson = new Gson();
            }
        return mGson;
    }

    /**
     * post请求 (此方法不推荐使用)
     *
     * @param url
     * @param params
     * @param callBack
     */
    @Deprecated
    public void post(final String url, HashMap params, String sign, final RequestCallBack callBack) {
        if (params != null) {
            params.put("partnerName", "bst-project");
            params.put("sign", sign);
        }
        RequestBody body = setRequestBody(params, url);
        Request.Builder requestBuilder = new Request.Builder();
        Request request = requestBuilder.post(body).url(Consts.APP_HOST + url).build();
        Call call = mOkHttpClient.newCall(request);
        call.enqueue(new Callback() {
            @Override
            public void onFailure(@NonNull Call call, @NonNull final IOException e) {
                if (callBack != null) {
                    okHttpHandler.post(new Runnable() {
                        @Override
                        public void run() {
                            callBack.finish();
                            callBack.failed(e);
                        }
                    });
                }
            }

            @Override
            public void onResponse(@NonNull Call call, @NonNull Response response) {
                try {
                    String respStr = response.body().string();
                    Log.d(TAG + url, respStr);
                    JSONObject jsonObject = new JSONObject(respStr);
                    String code = jsonObject.getString("code");
                    if ("0".equals(code)) {
                        final String responseInfo = jsonObject.getString("info");
                        if (callBack != null) {
                            okHttpHandler.post(new Runnable() {
                                @Override
                                public void run() {
                                    callBack.finish();
                                    callBack.onResponse(responseInfo);
                                }
                            });
                        }
                    } else {
                        callBack.finish();
                    }
                } catch (Exception e) {
                    if (callBack != null) {
                        callBack.finish();
                    }
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * post请求 (升级版)
     *
     * @param url
     * @param datas
     * @param callBack
     */
    public void post(final String url, String datas, String sign, final RequestCallBack callBack) {
        HashMap params = new HashMap<>();
        params.put("partnerName", "bst-project");
        params.put("sign", sign);
        params.put("param", datas);
        RequestBody body = setRequestBody(params, url);
        Request.Builder requestBuilder = new Request.Builder();
        Request request = requestBuilder.post(body).url(Consts.APP_HOST + url).build();
        Call call = mOkHttpClient.newCall(request);
        call.enqueue(new Callback() {
            @Override
            public void onFailure(@NonNull Call call, @NonNull final IOException e) {
                if (callBack != null) {
                    okHttpHandler.post(new Runnable() {
                        @Override
                        public void run() {
                            callBack.finish();
                            callBack.failed(e);
                        }
                    });
                }
            }

            @Override
            public void onResponse(@NonNull Call call, @NonNull Response response) {
                try {
                    String respStr = response.body().string();
                    Log.e(TAG + url, respStr);
                    JSONObject jsonObject = new JSONObject(respStr);
                    String code = jsonObject.getString("code");
                    if ("0".equals(code)) {
                        final String responseInfo = jsonObject.getString("info");
                        if (callBack != null) {
                            okHttpHandler.post(new Runnable() {
                                @Override
                                public void run() {
                                    callBack.finish();
                                    callBack.onResponse(responseInfo);
                                }
                            });
                        }
                    } else {
                        callBack.finish();
                    }
                } catch (Exception e) {
                    if (callBack != null) {
                        callBack.finish();
                    }
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * post请求 (升级版) (不经过过滤)
     *
     * @param url
     * @param datas
     * @param callBack
     */
    public void postNoFilt(final String url, String datas,final RequestCallBack callBack) {
        HashMap params = new HashMap<>();
        params.put("param", datas);
        RequestBody body = setRequestBody(params, url);
        Request.Builder requestBuilder = new Request.Builder();
        Request request = requestBuilder.post(body).url(Consts.APP_HOST + url).build();
        Call call = mOkHttpClient.newCall(request);
        call.enqueue(new Callback() {
            @Override
            public void onFailure(@NonNull Call call, @NonNull final IOException e) {
                if (callBack != null) {
                    okHttpHandler.post(new Runnable() {
                        @Override
                        public void run() {
                            callBack.finish();
                            callBack.failed(e);
                        }
                    });
                }
            }

            @Override
            public void onResponse(@NonNull Call call, @NonNull Response response) {
                try {
                    final String respStr = response.body().string();
                    Log.e(TAG + url, respStr);
                    if (callBack != null) {
                        okHttpHandler.post(new Runnable() {
                            @Override
                            public void run() {
                                callBack.finish();
                                callBack.onResponse(respStr);
                            }
                        });
                    }
                } catch (Exception e) {
                    if (callBack != null) {
                        callBack.finish();
                    }
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * post请求 (升级版) {返回数据是res}
     *
     * @param url
     * @param datas
     * @param callBack
     */
    public void postForRes(final String url, String datas, String sign, final RequestCallBack callBack) {
        HashMap params = new HashMap<>();
        params.put("partnerName", "bst-project");
        params.put("sign", sign);
        params.put("param", datas);
        RequestBody body = setRequestBody(params, url);
        Request.Builder requestBuilder = new Request.Builder();
        Request request = requestBuilder.post(body).url(Consts.APP_HOST + url).build();
        Call call = mOkHttpClient.newCall(request);
        call.enqueue(new Callback() {
            @Override
            public void onFailure(@NonNull Call call, @NonNull final IOException e) {
                if (callBack != null) {
                    okHttpHandler.post(new Runnable() {
                        @Override
                        public void run() {
                            callBack.finish();
                            callBack.failed(e);
                        }
                    });
                }
            }

            @Override
            public void onResponse(@NonNull Call call, @NonNull Response response) {
                try {
                    String respStr = response.body().string();
                    Log.d(TAG + url, respStr);
                    JSONObject jsonObject = new JSONObject(respStr);
                    String code = jsonObject.getString("code");
                    if ("0".equals(code)) {
                        final String responseInfo = jsonObject.getString("res");
                        if (callBack != null) {
                            okHttpHandler.post(new Runnable() {
                                @Override
                                public void run() {
                                    callBack.finish();
                                    callBack.onResponse(responseInfo);
                                }
                            });
                        }
                    }
                } catch (Exception e) {
                    if (callBack != null) {
                        callBack.finish();
                    }
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * get请求
     *
     * @param url
     * @param params
     * @param sign
     * @param callBack
     */
    public void get(String url, HashMap params, String sign, final RequestCallBack callBack) {
        if (params != null) {
            params.put("partnerName", "bst-project");
            params.put("sign", sign);   //跟后台沟通,需要就拼接,不需要就gone掉
        }
        String realParam = appendParams(url, params);
        Request.Builder builder = new Request.Builder();
        Request request = builder.get().url(realParam).build();
        Call call = mOkHttpClient.newCall(request);
        call.enqueue(new Callback() {
            @Override
            public void onFailure(@NonNull Call call, @NonNull final IOException e) {
                if (callBack != null) {
                    okHttpHandler.post(new Runnable() {
                        @Override
                        public void run() {
                            callBack.finish();
                            callBack.failed(e);
                        }
                    });
                }
            }

            @Override
            public void onResponse(@NonNull Call call, @NonNull Response response) {
                try {
                    Log.d(TAG, response.body().string());
                    JSONObject jsonObject = new JSONObject(response.body().string());
                    String code = jsonObject.getString("code");
                    if ("0".equals(code)) {
                        final String responseInfo = jsonObject.getString("info");
                        if (callBack != null) {
                            okHttpHandler.post(new Runnable() {
                                @Override
                                public void run() {
                                    callBack.finish();
                                    callBack.onResponse(responseInfo);
                                }
                            });
                        }
                    }
                } catch (Exception e) {
                    if (callBack != null) {
                        callBack.finish();
                    }
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * get请求(直接url拼接好的,并且没有code,全部回调过去)
     *
     * @param url
     * @param callBack
     */
    public void get(String url, final RequestCallBack callBack) {
        Request.Builder builder = new Request.Builder();
        Request request = builder.get().url(url).build();
        Call call = mOkHttpClient.newCall(request);
        call.enqueue(new Callback() {
            @Override
            public void onFailure(@NonNull Call call, @NonNull final IOException e) {
                if (callBack != null) {
                    okHttpHandler.post(new Runnable() {
                        @Override
                        public void run() {
                            callBack.finish();
                            callBack.failed(e);
                        }
                    });
                }
            }

            @Override
            public void onResponse(@NonNull Call call, @NonNull Response response) {
                try {
                    final String res = response.body().string();
                    if (callBack != null) {
                        okHttpHandler.post(new Runnable() {
                            @Override
                            public void run() {
                                callBack.finish();
                                callBack.onResponse(res);
                            }
                        });
                    }
                } catch (IOException e) {
                    if (callBack != null) {
                        callBack.finish();
                    }
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * get请求拼接参数
     *
     * @param url    地址
     * @param params 参数
     * @return string   拼接后的真实参数
     */
    private String appendParams(String url, Map params) {
        if (url != null && params != null && !params.isEmpty()) {
            Uri.Builder builder = Uri.parse(url).buildUpon();
            Set keys = params.keySet();
            Iterator iterator = keys.iterator();
            while (iterator.hasNext()) {
                String key = (String) iterator.next();
                builder.appendQueryParameter(key, params.get(key));
            }

            return builder.build().toString();
        } else {
            return url;
        }
    }

    /**
     * post的请求参数，构造RequestBody
     *
     * @param BodyParams 请求参数
     * @return RequestBody
     */
    private RequestBody setRequestBody(Map BodyParams, String url) {
        RequestBody body;
        okhttp3.FormBody.Builder formEncodingBuilder = new okhttp3.FormBody.Builder();
        if (BodyParams != null) {
            Iterator iterator = BodyParams.keySet().iterator();
            String key;
            while (iterator.hasNext()) {
                key = iterator.next();
                formEncodingBuilder.add(key, BodyParams.get(key));
                Log.e("post Params==" + url, BodyParams.get(key));
            }
        }
        body = formEncodingBuilder.build();
        return body;

    }

    /**
     * 生成安全套接字工厂，用于https请求的证书跳过
     *
     * @return SSLSocketFactory
     */
    private SSLSocketFactory createSSLSocketFactory() {
        SSLSocketFactory ssfFactory = null;
        try {
            SSLContext sc = SSLContext.getInstance("TLS");
            sc.init(null, new TrustManager[]{new TrustAllCerts()}, new SecureRandom());
            ssfFactory = sc.getSocketFactory();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return ssfFactory;
    }

    /**
     * 用于信任所有证书
     */
    private class TrustAllCerts implements X509TrustManager {

        @SuppressLint("TrustAllX509TrustManager")
        @Override
        public void checkClientTrusted(X509Certificate[] x509Certificates, String s) {
        }

        @SuppressLint("TrustAllX509TrustManager")
        @Override
        public void checkServerTrusted(X509Certificate[] x509Certificates, String s) {
        }

        @Override
        public X509Certificate[] getAcceptedIssuers() {
            return new X509Certificate[0];
        }
    }
}

然后是存放url的类

package com.pw.okhttps.httpUtils;

/**
 * author: pw on 2019/1/29 17:08
 * email: [email protected]
 */
public class Consts {

    public static final String APP_HOST = "https://api.douban.com/v2/movie/top250?start=0&count=10";
}

然后是回掉的接口

package com.pw.okhttps.httpUtils;


public interface RequestCallBack {

    /**
     * 成功回调
     *
     * @param response
     */
    void onResponse(String response);

    /**
     * 请求失败的时候
     *
     * @param e
     */
    void failed(Exception e);


    /**
     * 完成回调,不管失败还是成功都调用此方法,以便dismiss dialog等共同的操作
     */
    void finish();
}

然后是我的javabean

package com.pw.okhttps.httpUtils;

import java.util.List;

/**
 * author: pw on 2019/1/29 17:35
 * email: [email protected]
 */
public class MyBeans {
    /**
     * count : 10
     * start : 0
     * total : 250
     * subjects : [{"rating":{"max":10,"average":9.6,"stars":"50","min":0},"genres":["犯罪","剧情"],"title":"肖申克的救赎","casts":[{"alt":"https://movie.douban.com/celebrity/1054521/","avatars":{"small":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p17525.jpg","large":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p17525.jpg","medium":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p17525.jpg"},"name":"蒂姆·罗宾斯","id":"1054521"},{"alt":"https://movie.douban.com/celebrity/1054534/","avatars":{"small":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p34642.jpg","large":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p34642.jpg","medium":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p34642.jpg"},"name":"摩根·弗里曼","id":"1054534"},{"alt":"https://movie.douban.com/celebrity/1041179/","avatars":{"small":"https://img1.doubanio.com/view/celebrity/s_ratio_celebrity/public/p5837.jpg","large":"https://img1.doubanio.com/view/celebrity/s_ratio_celebrity/public/p5837.jpg","medium":"https://img1.doubanio.com/view/celebrity/s_ratio_celebrity/public/p5837.jpg"},"name":"鲍勃·冈顿","id":"1041179"}],"collect_count":1633014,"original_title":"The Shawshank Redemption","subtype":"movie","directors":[{"alt":"https://movie.douban.com/celebrity/1047973/","avatars":{"small":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p230.jpg","large":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p230.jpg","medium":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p230.jpg"},"name":"弗兰克·德拉邦特","id":"1047973"}],"year":"1994","images":{"small":"https://img3.doubanio.com/view/photo/s_ratio_poster/public/p480747492.jpg","large":"https://img3.doubanio.com/view/photo/s_ratio_poster/public/p480747492.jpg","medium":"https://img3.doubanio.com/view/photo/s_ratio_poster/public/p480747492.jpg"},"alt":"https://movie.douban.com/subject/1292052/","id":"1292052"},{"rating":{"max":10,"average":9.6,"stars":"50","min":0},"genres":["剧情","爱情","同性"],"title":"霸王别姬","casts":[{"alt":"https://movie.douban.com/celebrity/1003494/","avatars":{"small":"https://img1.doubanio.com/view/celebrity/s_ratio_celebrity/public/p67.jpg","large":"https://img1.doubanio.com/view/celebrity/s_ratio_celebrity/public/p67.jpg","medium":"https://img1.doubanio.com/view/celebrity/s_ratio_celebrity/public/p67.jpg"},"name":"张国荣","id":"1003494"},{"alt":"https://movie.douban.com/celebrity/1050265/","avatars":{"small":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p46345.jpg","large":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p46345.jpg","medium":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p46345.jpg"},"name":"张丰毅","id":"1050265"},{"alt":"https://movie.douban.com/celebrity/1035641/","avatars":{"small":"https://img1.doubanio.com/view/celebrity/s_ratio_celebrity/public/p1399268395.47.jpg","large":"https://img1.doubanio.com/view/celebrity/s_ratio_celebrity/public/p1399268395.47.jpg","medium":"https://img1.doubanio.com/view/celebrity/s_ratio_celebrity/public/p1399268395.47.jpg"},"name":"巩俐","id":"1035641"}],"collect_count":1303574,"original_title":"霸王别姬","subtype":"movie","directors":[{"alt":"https://movie.douban.com/celebrity/1023040/","avatars":{"small":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p1451727734.81.jpg","large":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p1451727734.81.jpg","medium":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p1451727734.81.jpg"},"name":"陈凯歌","id":"1023040"}],"year":"1993","images":{"small":"https://img3.doubanio.com/view/photo/s_ratio_poster/public/p1910813120.jpg","large":"https://img3.doubanio.com/view/photo/s_ratio_poster/public/p1910813120.jpg","medium":"https://img3.doubanio.com/view/photo/s_ratio_poster/public/p1910813120.jpg"},"alt":"https://movie.douban.com/subject/1291546/","id":"1291546"},{"rating":{"max":10,"average":9.4,"stars":"50","min":0},"genres":["剧情","动作","犯罪"],"title":"这个杀手不太冷","casts":[{"alt":"https://movie.douban.com/celebrity/1025182/","avatars":{"small":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p8833.jpg","large":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p8833.jpg","medium":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p8833.jpg"},"name":"让·雷诺","id":"1025182"},{"alt":"https://movie.douban.com/celebrity/1054454/","avatars":{"small":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p2274.jpg","large":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p2274.jpg","medium":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p2274.jpg"},"name":"娜塔莉·波特曼","id":"1054454"},{"alt":"https://movie.douban.com/celebrity/1010507/","avatars":{"small":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p33896.jpg","large":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p33896.jpg","medium":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p33896.jpg"},"name":"加里·奥德曼","id":"1010507"}],"collect_count":1696777,"original_title":"Léon","subtype":"movie","directors":[{"alt":"https://movie.douban.com/celebrity/1031876/","avatars":{"small":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p33301.jpg","large":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p33301.jpg","medium":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p33301.jpg"},"name":"吕克·贝松","id":"1031876"}],"year":"1994","images":{"small":"https://img3.doubanio.com/view/photo/s_ratio_poster/public/p511118051.jpg","large":"https://img3.doubanio.com/view/photo/s_ratio_poster/public/p511118051.jpg","medium":"https://img3.doubanio.com/view/photo/s_ratio_poster/public/p511118051.jpg"},"alt":"https://movie.douban.com/subject/1295644/","id":"1295644"},{"rating":{"max":10,"average":9.4,"stars":"50","min":0},"genres":["剧情","爱情"],"title":"阿甘正传","casts":[{"alt":"https://movie.douban.com/celebrity/1054450/","avatars":{"small":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p28603.jpg","large":"https://img3.doubanio.com/view/celebri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     * title : 豆瓣电影Top250
     */

    private int count;
    private int start;
    private int total;
    private String title;
    private List subjects;

    public int getCount() {
        return count;
    }

    public void setCount(int count) {
        this.count = count;
    }

    public int getStart() {
        return start;
    }

    public void setStart(int start) {
        this.start = start;
    }

    public int getTotal() {
        return total;
    }

    public void setTotal(int total) {
        this.total = total;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public List getSubjects() {
        return subjects;
    }

    public void setSubjects(List subjects) {
        this.subjects = subjects;
    }

    public static class SubjectsBean {
        /**
         * rating : {"max":10,"average":9.6,"stars":"50","min":0}
         * genres : ["犯罪","剧情"]
         * title : 肖申克的救赎
         * casts : [{"alt":"https://movie.douban.com/celebrity/1054521/","avatars":{"small":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p17525.jpg","large":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p17525.jpg","medium":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p17525.jpg"},"name":"蒂姆·罗宾斯","id":"1054521"},{"alt":"https://movie.douban.com/celebrity/1054534/","avatars":{"small":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p34642.jpg","large":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p34642.jpg","medium":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p34642.jpg"},"name":"摩根·弗里曼","id":"1054534"},{"alt":"https://movie.douban.com/celebrity/1041179/","avatars":{"small":"https://img1.doubanio.com/view/celebrity/s_ratio_celebrity/public/p5837.jpg","large":"https://img1.doubanio.com/view/celebrity/s_ratio_celebrity/public/p5837.jpg","medium":"https://img1.doubanio.com/view/celebrity/s_ratio_celebrity/public/p5837.jpg"},"name":"鲍勃·冈顿","id":"1041179"}]
         * collect_count : 1633014
         * original_title : The Shawshank Redemption
         * subtype : movie
         * directors : [{"alt":"https://movie.douban.com/celebrity/1047973/","avatars":{"small":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p230.jpg","large":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p230.jpg","medium":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p230.jpg"},"name":"弗兰克·德拉邦特","id":"1047973"}]
         * year : 1994
         * images : {"small":"https://img3.doubanio.com/view/photo/s_ratio_poster/public/p480747492.jpg","large":"https://img3.doubanio.com/view/photo/s_ratio_poster/public/p480747492.jpg","medium":"https://img3.doubanio.com/view/photo/s_ratio_poster/public/p480747492.jpg"}
         * alt : https://movie.douban.com/subject/1292052/
         * id : 1292052
         */

        private RatingBean rating;
        private String title;
        private int collect_count;
        private String original_title;
        private String subtype;
        private String year;
        private ImagesBean images;
        private String alt;
        private String id;
        private List genres;
        private List casts;
        private List directors;

        public RatingBean getRating() {
            return rating;
        }

        public void setRating(RatingBean rating) {
            this.rating = rating;
        }

        public String getTitle() {
            return title;
        }

        public void setTitle(String title) {
            this.title = title;
        }

        public int getCollect_count() {
            return collect_count;
        }

        public void setCollect_count(int collect_count) {
            this.collect_count = collect_count;
        }

        public String getOriginal_title() {
            return original_title;
        }

        public void setOriginal_title(String original_title) {
            this.original_title = original_title;
        }

        public String getSubtype() {
            return subtype;
        }

        public void setSubtype(String subtype) {
            this.subtype = subtype;
        }

        public String getYear() {
            return year;
        }

        public void setYear(String year) {
            this.year = year;
        }

        public ImagesBean getImages() {
            return images;
        }

        public void setImages(ImagesBean images) {
            this.images = images;
        }

        public String getAlt() {
            return alt;
        }

        public void setAlt(String alt) {
            this.alt = alt;
        }

        public String getId() {
            return id;
        }

        public void setId(String id) {
            this.id = id;
        }

        public List getGenres() {
            return genres;
        }

        public void setGenres(List genres) {
            this.genres = genres;
        }

        public List getCasts() {
            return casts;
        }

        public void setCasts(List casts) {
            this.casts = casts;
        }

        public List getDirectors() {
            return directors;
        }

        public void setDirectors(List directors) {
            this.directors = directors;
        }

        public static class RatingBean {
            /**
             * max : 10
             * average : 9.6
             * stars : 50
             * min : 0
             */

            private int max;
            private double average;
            private String stars;
            private int min;

            public int getMax() {
                return max;
            }

            public void setMax(int max) {
                this.max = max;
            }

            public double getAverage() {
                return average;
            }

            public void setAverage(double average) {
                this.average = average;
            }

            public String getStars() {
                return stars;
            }

            public void setStars(String stars) {
                this.stars = stars;
            }

            public int getMin() {
                return min;
            }

            public void setMin(int min) {
                this.min = min;
            }
        }

        public static class ImagesBean {
            /**
             * small : https://img3.doubanio.com/view/photo/s_ratio_poster/public/p480747492.jpg
             * large : https://img3.doubanio.com/view/photo/s_ratio_poster/public/p480747492.jpg
             * medium : https://img3.doubanio.com/view/photo/s_ratio_poster/public/p480747492.jpg
             */

            private String small;
            private String large;
            private String medium;

            public String getSmall() {
                return small;
            }

            public void setSmall(String small) {
                this.small = small;
            }

            public String getLarge() {
                return large;
            }

            public void setLarge(String large) {
                this.large = large;
            }

            public String getMedium() {
                return medium;
            }

            public void setMedium(String medium) {
                this.medium = medium;
            }
        }

        public static class CastsBean {
            /**
             * alt : https://movie.douban.com/celebrity/1054521/
             * avatars : {"small":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p17525.jpg","large":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p17525.jpg","medium":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p17525.jpg"}
             * name : 蒂姆·罗宾斯
             * id : 1054521
             */

            private String alt;
            private AvatarsBean avatars;
            private String name;
            private String id;

            public String getAlt() {
                return alt;
            }

            public void setAlt(String alt) {
                this.alt = alt;
            }

            public AvatarsBean getAvatars() {
                return avatars;
            }

            public void setAvatars(AvatarsBean avatars) {
                this.avatars = avatars;
            }

            public String getName() {
                return name;
            }

            public void setName(String name) {
                this.name = name;
            }

            public String getId() {
                return id;
            }

            public void setId(String id) {
                this.id = id;
            }

            public static class AvatarsBean {
                /**
                 * small : https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p17525.jpg
                 * large : https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p17525.jpg
                 * medium : https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p17525.jpg
                 */

                private String small;
                private String large;
                private String medium;

                public String getSmall() {
                    return small;
                }

                public void setSmall(String small) {
                    this.small = small;
                }

                public String getLarge() {
                    return large;
                }

                public void setLarge(String large) {
                    this.large = large;
                }

                public String getMedium() {
                    return medium;
                }

                public void setMedium(String medium) {
                    this.medium = medium;
                }
            }
        }

        public static class DirectorsBean {
            /**
             * alt : https://movie.douban.com/celebrity/1047973/
             * avatars : {"small":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p230.jpg","large":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p230.jpg","medium":"https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p230.jpg"}
             * name : 弗兰克·德拉邦特
             * id : 1047973
             */

            private String alt;
            private AvatarsBeanX avatars;
            private String name;
            private String id;

            public String getAlt() {
                return alt;
            }

            public void setAlt(String alt) {
                this.alt = alt;
            }

            public AvatarsBeanX getAvatars() {
                return avatars;
            }

            public void setAvatars(AvatarsBeanX avatars) {
                this.avatars = avatars;
            }

            public String getName() {
                return name;
            }

            public void setName(String name) {
                this.name = name;
            }

            public String getId() {
                return id;
            }

            public void setId(String id) {
                this.id = id;
            }

            public static class AvatarsBeanX {
                /**
                 * small : https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p230.jpg
                 * large : https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p230.jpg
                 * medium : https://img3.doubanio.com/view/celebrity/s_ratio_celebrity/public/p230.jpg
                 */

                private String small;
                private String large;
                private String medium;

                public String getSmall() {
                    return small;
                }

                public void setSmall(String small) {
                    this.small = small;
                }

                public String getLarge() {
                    return large;
                }

                public void setLarge(String large) {
                    this.large = large;
                }

                public String getMedium() {
                    return medium;
                }

                public void setMedium(String medium) {
                    this.medium = medium;
                }
            }
        }
    }
}

然后是我们使用

package com.pw.okhttps;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.ProgressBar;
import android.widget.TextView;
import com.pw.okhttps.httpUtils.BstRequestClient;
import com.pw.okhttps.httpUtils.Consts;
import com.pw.okhttps.httpUtils.MyBeans;
import com.pw.okhttps.httpUtils.RequestCallBack;
import org.json.JSONException;
import org.json.JSONObject;
import androidx.appcompat.app.AppCompatActivity;
public class MainActivity extends AppCompatActivity {
    private Button btn_start;
    private LinearLayout llpro_gress;
    private TextView tv_contents;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        init();
    }

    private void init() {
        btn_start = findViewById(R.id.btn_start);
        llpro_gress = findViewById(R.id.ll_progress);
        tv_contents = findViewById(R.id.tv_contents);
        btn_start.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                llpro_gress.setVisibility(View.VISIBLE);
                //get 请求
                getNet();
                // post 请求
//                postNet();
            }
        });
    }

    /**
     *  Consts.APP_HOST 是 url
     */
    private void getNet() {
        BstRequestClient.getInstance().get(Consts.APP_HOST, new RequestCallBack() {
            @Override
            public void onResponse(String response) {
                try {
                    MyBeans myBeans = BstRequestClient.getInstance().getGson().fromJson(response, MyBeans.class);
                    tv_contents.setText(myBeans.getTitle().toString());
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
            @Override
            public void failed(Exception e) {
                e.printStackTrace();
            }

            @Override
            public void finish() {
                llpro_gress.setVisibility(View.GONE);
            }
        });
    }

    private void postNet() {
        try {
            JSONObject jsonObject = new JSONObject();
            jsonObject.put("shop_id", "1");
            BstRequestClient.getInstance().post(Consts.APP_HOST, jsonObject.toString(), "", new RequestCallBack() {
                @Override
                public void onResponse(String response) {
                    try {
                        MyBeans myBeans = BstRequestClient.getInstance().getGson().fromJson(response, MyBeans.class);
                        tv_contents.setText(myBeans.getTotal() + myBeans.getCount());
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }

                @Override
                public void failed(Exception e) {
                    Log.e("a", "failed: " + e.getMessage());
                }

                @Override
                public void finish() {
                    llpro_gress.setVisibility(View.GONE);
                }
            });
        } catch (JSONException e) {
            e.printStackTrace();
        }
    }

}

上面写了get和post请求，一般post请求最为常用，我这里是用的get请求

然后是布局

然后别忘了在清单文件添加权限