参考链接

OkHttp配置HTTPS访问+服务器部署 – 知乎 (zhihu.com)

OkHttp的使用_okhttp hostnameverifier_明雨星云的博客-CSDN博客

暴力方法使用

public static String test() {
    OkHttpClient client = new OkHttpClient.Builder()
        .sslSocketFactory(createSSLSocketFactory(), new TrustAllCerts())
        .hostnameVerifier(new TrustAllHostnameVerifier()).build();

    String url = "https://xxxxxxx";   //修改成自己的url
    Request request = new Request.Builder().url(url).build();
    Call call = build.newCall(request);
    Response response = call.execute();
    if(response.body() != null)
    {
        String result = response.body().string();
        //处理result
    }
}

private static class TrustAllCerts implements X509TrustManager {
    public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {}
    public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {}
    public X509Certificate[] getAcceptedIssuers() {return new X509Certificate[0];}
}

private static class TrustAllHostnameVerifier implements HostnameVerifier {
    public boolean verify(String hostname, SSLSession session) { return true; }
}

private static 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;
}