直接上代码: 

//okHttp3添加信任所有证书

public static OkHttpClient getUnsafeOkHttpClient() {

    try {
        final TrustManager[] trustAllCerts = new TrustManager[]{
                new X509TrustManager() {
                    @Override
                    public void checkClientTrusted(java.security.cert.X509Certificate[] chain, String authType) {
                    }

                    @Override
                    public void checkServerTrusted(java.security.cert.X509Certificate[] chain, String authType) {
                    }

                    @Override
                    public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                        return new java.security.cert.X509Certificate[]{};
                    }
                }
        };

        final SSLContext sslContext = SSLContext.getInstance("SSL");
        sslContext.init(null, trustAllCerts, new java.security.SecureRandom());
        final javax.net.ssl.SSLSocketFactory sslSocketFactory = sslContext.getSocketFactory();
        OkHttpClient.Builder builder = new OkHttpClient.Builder();
        builder.sslSocketFactory(sslSocketFactory);

        builder.hostnameVerifier(new HostnameVerifier() {
            @Override
            public boolean verify(String hostname, SSLSession session) {
                return true;
            }
        });

        return builder.build();
    } catch (Exception e) {
        throw new RuntimeException(e);
    }

}

 初始化的时候替换:

OkHttpClient okHttpClient = new OkHttpClient();

为: 

OkHttpClient okHttpClient = getUnsafeOkHttpClient();

大功告成 ! ! !