我需要禁用Java证书验证才能进行测试.所以我理解风险.我使用了以下教程：http://www.rgagnon.com/javadetails/java-fix-certificate-problem-in-HTTPS.html

所以代码是：

import java.io.InputStreamReader;
import java.io.Reader;
import java.net.URL;
import java.net.URLConnection;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import java.security.cert.X509Certificate;

public class Cert {
  public static void main(String[] args) throws Exception {
    /*
     *  fix for
     *    Exception in thread "main" javax.net.ssl.SSLHandshakeException:
     *       sun.security.validator.ValidatorException:
     *           PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException:
     *               unable to find valid certification path to requested target
     */
    TrustManager[] trustAllCerts = new TrustManager[] {
       new X509TrustManager() {
          public java.security.cert.X509Certificate[] getAcceptedIssuers() {
            return null;
          }

          public void checkClientTrusted(X509Certificate[] certs, String authType) {  }

          public void checkServerTrusted(X509Certificate[] certs, String authType) {  }

       }
    };

    SSLContext sc = SSLContext.getInstance("SSL");
    sc.init(null, trustAllCerts, new java.security.SecureRandom());
    HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());

    // Create all-trusting host name verifier
    HostnameVerifier allHostsValid = new HostnameVerifier() {
        public boolean verify(String hostname, SSLSession session) {
          return true;
        }
    };
    // Install the all-trusting host verifier
    HttpsURLConnection.setDefaultHostnameVerifier(allHostsValid);
    /*
     * end of the fix
     */

    URL url = new URL("https://www.nakov.com:2083/");
    URLConnection con = url.openConnection();
    Reader reader = new InputStreamReader(con.getInputStream());
    while (true) {
      int ch = reader.read();
      if (ch==-1) {
        break;
      }
      System.out.print((char)ch);
    }
      }
    }

我仍然收到以下错误.任何身体都能帮忙吗？

Exception in thread "main" java.io.IOException: Server returned HTTP response code: 401 for URL: https://www.nakov.com:2083/
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1615)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254)
    at MainProject.Cert.main(Cert.java:56)

解决方法:

“修复”和例外似乎不相关：修复程序禁用客户端验证服务器的证书,而异常表示服务器认为客户端未被授权访问该URL.