javax。网ssl。SSLHandshakeException HttpsURLConnection

Question

我得到一个"异常在线程"主"javax.net.ssl.SSLHandshake异常：收到致命警报：handshake_failure"下面的代码。有人知道如何修复它吗？

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

有些加密相关的东西在默认情况下是不启用的。您需要安装JCE：

• Java加密扩展（JCE）无限强度管辖权策略文件8下载
• Java加密扩展（JCE）无限强度管辖权策略文件7下载

PS:SSL实验室让你对你试图访问的服务器有了一些了解https://www.ssllabs.com/ssltest/analyze.html?viaform=on