retrofit请求网络，有时候会遇到说证书错误的问题，方便起见，我们可以信任所有证书

自定义的SSLSocketFactory如下：

/**
 * Trust every server - don't check for any certificate
 */
private SSLSocketFactory getSSLSocketFactory() {
    // Create a trust manager that does not validate certificate chains
    TrustManager[] trustAllCerts = new TrustManager[]{new X509TrustManager() {
        public java.security.cert.X509Certificate[] getAcceptedIssuers() {
            return new java.security.cert.X509Certificate[]{};
        }

        public void checkClientTrusted(X509Certificate[] chain,
                                       String authType) throws CertificateException {
        }

        public void checkServerTrusted(X509Certificate[] chain,
                                       String authType) throws CertificateException {
        }
    }};

    // Install the all-trusting trust manager
    try {
        SSLContext sc = SSLContext.getInstance("TLS");
        sc.init(null, trustAllCerts, new java.security.SecureRandom());
        return sc.getSocketFactory();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

然后retrofit的设置如下:

OkHttpClient client = new OkHttpClient.Builder()
        .addInterceptor(interceptor)
        .sslSocketFactory(getSSLSocketFactory())
        .build();
Retrofit retrofit = new Retrofit.Builder()
        .baseUrl("https://ikki-test.site.youdao.com/log/crash/")
        .client(client)
        .addConverterFactory(GsonConverterFactory.create(new Gson()))
        .build();
MyApiService service = retrofit.create(MyApiService.class);