getcert.html

来自「java类库详细讲解」· HTML 代码 · 共 118 行

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<TITLE>Retrieving the Certification Path of an SSL Server
(Java Developers Almanac Example)
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    <B><A HREF="../javax.net.ssl/pkg.html">javax.net.ssl</A></B><font color="#666666" SIZE="-2">
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  <h3>
    e501.  
    Retrieving the Certification Path of an SSL Server</h3>

This example implements a client that connects to an SSL server
and retrieves the server's certificates.

<P> See also <a href="../java.security/AddCert.html" class="eglink"><font size="-1"><b>e211</b> Adding a Certificate to a Key Store</font></a>.


<pre>
    try {
        // Create the client socket
        int port = <font color="#0066ff"><i>443</i></font>;
        String hostname = <font color="#0066ff"><i>"hostname"</i></font>;
        SSLSocketFactory factory = HttpsURLConnection.getDefaultSSLSocketFactory();
        SSLSocket socket = (SSLSocket)factory.createSocket(hostname, port);
    
        // Connect to the server
        socket.startHandshake();
    
        // Retrieve the server's certificate chain
        java.security.cert.Certificate[] serverCerts =
            socket.getSession().getPeerCertificates();
    
        // Close the socket
        socket.close();
    } catch (SSLPeerUnverifiedException e) {
    } catch (IOException e) {
    } catch (java.security.cert.CertificateEncodingException e) {
    }
</pre>
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            &nbsp;Related Examples
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e499. <a class="eglink" href="Client.html?l=rel">
    Creating an SSL Client Socket
</a>
<br>

e500. <a class="eglink" href="Server.html?l=rel">
    Creating an SSL Server Socket
</a>
<br>

e502. <a class="eglink" href="TrustAll.html?l=rel">
    Disabling Certificate Validation in an HTTPS Connection
</a>
<br>


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