OkHttp3.7同步异步访问HTTPS网页例子

工具类

import okhttp3.Headers;
import okhttp3.OkHttpClient;
import javax.net.ssl.*;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.Random;

/**
 * Created by WJY on 2017/5/5.
 */
public class OkHttpClientUtil {

    /**
     * 创建忽略SSL证书的OkHttpClient
     * @return
     */
    public static OkHttpClient buildSSLClient(){
        try {
            SSLContext ctx = SSLContext.getInstance("TLS");
            X509TrustManager tm = new X509TrustManager() {
                public void checkClientTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {

                }

                public void checkServerTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {

                }

                public X509Certificate[] getAcceptedIssuers() {
                    return new X509Certificate[0];
                }
            };
            ctx.init(null, new TrustManager[]{tm}, new java.security.SecureRandom());
            SSLSocketFactory ssf = ctx.getSocketFactory();
            return new OkHttpClient.Builder().sslSocketFactory(ssf,tm).hostnameVerifier(new HostnameVerifier() {
                @Override
                public boolean verify(String s, SSLSession sslSession) {
                    return true;
                }
            }).build();
        }catch (Exception e){
            e.printStackTrace();
        }
        return null;
    }

    private static String[] USER_AGENTS = {
            "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:16.0) Gecko/20100101 Firefox/16.0",
            "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.64 Safari/537.11",
            "Mozilla/5.0 (X11; U; Linux x86_64; zh-CN; rv:1.9.2.10) Gecko/20100922 Ubuntu/10.10 (maverick) Firefox/3.6.10" };


    /**
     * 随机返回一个UserAgent信息
     */
    public static String getRandUserAgent(){
        Random rd = new Random();
        return USER_AGENTS[rd.nextInt(USER_AGENTS.length)];
    }

    /**
     * 随机返回一个带有UserAgnet的header
     * @return
     */
    public static Headers randomUserAgent(){
        return new Headers.Builder().add("User-Agent",getRandUserAgent()).build();
    }
}

同步GET访问HTTPS页面方法

@Test
    public void getHttpsPageTest() throws Exception {
        OkHttpClient client = OkHttpClientUtil.buildSSLClient();
        Request request = new Request.Builder()
                .url("https://httpbin.org/get?username=zhangsan")
                .build();
        Call call = client.newCall(request);
        try{
            Response response = call.execute();
            System.out.println(response.code());
            System.out.println(response.body().string());
        }catch (Exception e){
            e.printStackTrace();
        }
    }

同步POST提交HTTPS页面方法

@Test
    public void postHttpsPageTest() throws Exception {
        OkHttpClient client = OkHttpClientUtil.buildSSLClient();
        String url = "https://httpbin.org/post";
        String postBody = ""
                + "Releases\n"
                + "--------\n"
                + "\n"
                + " * _1.0_ May 6, 2013\n"
                + " * _1.1_ June 15, 2013\n"
                + " * _1.2_ August 11, 2013\n";
        Headers headers = OkHttpClientUtil.randomUserAgent();
        Request request = new Request.Builder()
                .post(RequestBody.create(MediaType.parse("text/x-markdown"),postBody))
                .url(url)
                .headers(headers)
                .build();
        Response response = client.newCall(request).execute();
        System.out.println(response.body().string());
    }

异步GET访问方法

@Test
    public void getAsync() throws Exception {
        OkHttpClient client = OkHttpClientUtil.buildSSLClient();
        Request request = new Request.Builder()
                .url("https://httpbin.org/get?username=zhangsan")
                .build();
        client.newCall(request).enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                System.out.println("失败！");
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                if(!response.isSuccessful()) System.out.println("出错");
                else{
                    Headers responseHeaders = response.headers();
                    for (int i = 0; i < responseHeaders.size(); i++) {
                        System.out.println(responseHeaders.name(i) + ": " + responseHeaders.value(i));
                    }
                    System.out.println(response.body().string());
                }
            }
        });
        System.out.println("开始访问===>");
        //休眠5秒用于访问网页
        Thread.sleep(10_000);
    }

异步POST提交HTTPS页面方法

@Test
    public void postAsync() throws Exception {
        OkHttpClient client = OkHttpClientUtil.buildSSLClient();
        String url = "https://httpbin.org/post";
        String postBody = ""
                + "Releases\n"
                + "--------\n"
                + "\n"
                + " * _1.0_ May 6, 2013\n"
                + " * _1.1_ June 15, 2013\n"
                + " * _1.2_ August 11, 2013\n";
        Headers headers = OkHttpClientUtil.randomUserAgent();
        Request request = new Request.Builder()
                .post(RequestBody.create(MediaType.parse("text/x-markdown"),postBody))
                .url(url)
                .headers(headers)
                .build();
        client.newCall(request).enqueue(new Callback() {
           @Override
           public void onFailure(Call call, IOException e) {
               System.out.println("失败！");
           }

           @Override
           public void onResponse(Call call, Response response) throws IOException {
               if(!response.isSuccessful()) System.out.println("出错");
               else{
                   Headers responseHeaders = response.headers();
                   for (int i = 0; i < responseHeaders.size(); i++) {
                       System.out.println(responseHeaders.name(i) + ": " + responseHeaders.value(i));
                   }
                   System.out.println(response.body().string());
               }
           }
        });
        System.out.println("开始访问===>");
        //休眠5秒用于访问网页
        Thread.sleep(10_000);
    }