Android - https连接，让我们加密证书

InputStream inputStream = getResources().openRawResource(R.raw.your_certificate);
CertificateFactory certificateFactory = CertificateFactory.getInstance("X.509");
X509Certificate certificate = (X509Certificate) certificateFactory.generateCertificate(inputStream);

KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());
keyStore.load(null, null);
keyStore.setCertificateEntry("your_alias", certificate);

TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
trustManagerFactory.init(keyStore);

SSLContext sslContext = SSLContext.getInstance("TLS");
sslContext.init(null, trustManagerFactory.getTrustManagers(), null);

URL url = new URL("https://your_server_url");
HttpsURLConnection connection = (HttpsURLConnection) url.openConnection();
connection.setSSLSocketFactory(sslContext.getSocketFactory());

// 设置其他连接属性
connection.setRequestMethod("GET");
connection.setReadTimeout(5000);
connection.setConnectTimeout(5000);

// 发起连接
connection.connect();

// 处理响应
int responseCode = connection.getResponseCode();
if (responseCode == HttpsURLConnection.HTTP_OK) {
    // 读取响应数据
    InputStream inputStream = connection.getInputStream();
    // 处理数据
}

// 关闭连接
connection.disconnect();