如何禁用Java中的证书验证 [英] How to disable certificate validation in java

问题描述

我需要禁用Java证书验证才能测试。所以我明白的风险。我使用了以下教程： http：//www.rgagnon .com / javadetails / java-fix-certificate-problem-in-HTTPS.html

I need to disable Java certificate validation for testing only. So I understand the risk. I used the following tutorial: 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​​然得到以下错误。

I still get the following error. Can any body help ?

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)

推荐答案

修复和异常显示不相关：修复禁用由客户端验证服务器的证书，而异常表示服务器认为客户端无权访问该网址。

The "fix" and the exception appear unrelated: The fix disables verification of the server's certificate by the client while the exception indicates that the server deemed the client not authorized to access that URL.

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