javax.net.ssl.SSLHandshakeException HttpsURLConnection

Question

我得到一个“线程中的异常”主要“javax.net.ssl.SSLHandshakeException：收到致命警报：handshake_failure”，代码如下。有人知道如何解决它吗？

import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLSession;

public class Test {
static {
    System.setProperty("https.protocols", "TLSv1,TLSv1.1,TLSv1.2,SSLv3,SSLv2Hello");
    HostnameVerifier hv = new HostnameVerifier() {
        public boolean verify(String urlHostName, SSLSession session) {
            return true;
        }
    };
    HttpsURLConnection.setDefaultHostnameVerifier(hv);
}

public static void main(String[] args) throws MalformedURLException, IOException {
    HttpURLConnection con = (HttpsURLConnection) new URL("https://www.sureworks.de").openConnection();
    con.connect();
}
}

Answer 1

默认情况下，有一些与加密相关的内容未启用。您需要安装JCE：

• Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files 8 Download
• Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files 7 Download

PS：SSL实验室让您了解您尝试访问的服务器https://www.ssllabs.com/ssltest/analyze.html?viaform=on&d=https%3A%2F%2Fwww.sureworks.de%2F