https证书校验jar包

您可以使用Java的内置SSL类来执行https证书校验，而不需要下载任何外部jar包。您可以使用以下代码来执行证书校验：

import javax.net.ssl.*;
import java.security.cert.X509Certificate;

public class SSLCertVerification {

    public static void main(String[] args) {
        try {
            SSLContext sslContext = SSLContext.getInstance("SSL");
            sslContext.init(null, new TrustManager[]{new X509TrustManager() {
                public void checkClientTrusted(X509Certificate[] chain, String authType) {}
                public void checkServerTrusted(X509Certificate[] chain, String authType) {}
                public X509Certificate[] getAcceptedIssuers() { return null; }
            }}, null);
            HttpsURLConnection.setDefaultSSLSocketFactory(sslContext.getSocketFactory());
            HttpsURLConnection.setDefaultHostnameVerifier(new HostnameVerifier() {
                public boolean verify(String hostname, SSLSession session) { return true; }
            });

            // Make an https request
            URL url = new URL("https://your-https-url.com");
            HttpsURLConnection connection = (HttpsURLConnection) url.openConnection();
            connection.setRequestMethod("GET");
            BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String inputLine;
            while ((inputLine = in.readLine()) != null) {
                System.out.println(inputLine);
            }
            in.close();

            connection.disconnect();

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}

这段代码创建了一个自己的SSLContext，并将其设置为默认的SSL socket工厂和主机名验证程序。这样，您可以忽略证书错误并继续连接，也可以编写自己的验证逻辑以验证证书。在我们的代码示例中，我们只是忽略了验证，但您可以改为在自己的验证程序中执行适当的验证逻辑。