关于httpclient访问https的ssl证书问题

Question

我用httpclient访问一个https的网站，我在网上找了一个这个类import java.io.IOException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.SocketAddress;
import java.net.UnknownHostException;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;import javax.net.SocketFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;import org.apache.commons.httpclient.ConnectTimeoutException;
import org.apache.commons.httpclient.params.HttpConnectionParams;
import org.apache.commons.httpclient.protocol.SecureProtocolSocketFactory;public class MySecureProtocolSocketFactory implements SecureProtocolSocketFactory {
    static{
        System.out.println(">>>>in MySecureProtocolSocketFactory>>");
    }
    private SSLContext sslcontext = null;
    
    public SSLContext createSSLContext() {
        SSLContext sslcontext=null;
        try {
            sslcontext = SSLContext.getInstance("SSL");
            sslcontext.init(null, new TrustManager[]{new TrustAnyTrustManager()}, new java.security.SecureRandom());
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (KeyManagementException e) {
            e.printStackTrace();
        }
        return sslcontext;
    }
    
    public SSLContext getSSLContext() {
        if (this.sslcontext == null) {
            this.sslcontext = createSSLContext();
        }
        return this.sslcontext;
    }
    
    public Socket createSocket(Socket socket, String host, int port, boolean autoClose)
            throws IOException, UnknownHostException {
        return getSSLContext().getSocketFactory().createSocket(
                socket,
                host,
                port,
                autoClose
            );
    }    public Socket createSocket(String host, int port) throws IOException,
            UnknownHostException {
        return getSSLContext().getSocketFactory().createSocket(
                host,
                port
            );
    }
    
    
    public Socket createSocket(String host, int port, InetAddress clientHost, int clientPort)
            throws IOException, UnknownHostException {
        return getSSLContext().getSocketFactory().createSocket(host, port, clientHost, clientPort);
    }    public Socket createSocket(String host, int port, InetAddress localAddress,
            int localPort, HttpConnectionParams params) throws IOException,
            UnknownHostException, ConnectTimeoutException {
        if (params == null) {
            throw new IllegalArgumentException("Parameters may not be null");
        }
        int timeout = params.getConnectionTimeout();
        SocketFactory socketfactory = getSSLContext().getSocketFactory();
        if (timeout == 0) {
            return socketfactory.createSocket(host, port, localAddress, localPort);
        } else {
            Socket socket = socketfactory.createSocket();
            SocketAddress localaddr = new InetSocketAddress(localAddress, localPort);
            SocketAddress remoteaddr = new InetSocketAddress(host, port);
            socket.bind(localaddr);
            socket.connect(remoteaddr, timeout);
            return socket;
        }
    }
    
    //自定义私有类
    private static class TrustAnyTrustManager implements X509TrustManager {
       
        public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
        }
   
        public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
        }
   
        public X509Certificate[] getAcceptedIssuers() {
            return new X509Certificate[]{};
        }
    }
    }用这个类可以访问到那个https的网站，我模拟了一个用户登录过程，但一旦登录完就自动退出。以前是可以用这个方法登录进那个网站的，但现在却不行了，不知是何故，请高手指教！！！

Answer 1

用这个类干什么？其实HTTPS类似的网站处理SSL httpclient都可以帮你完成的啊。postmethod把你的form表单的信息传过去，登陆成功后直接getmethod请求登陆成功后的页面，打印就行

Answer 2

上面那个类是处理ssl证书的一个类，据说是所有ssl证书都可以处理。
我post过去后，去get第二个页面，他就说我的session过期了，会不会是ssl里面有些东西通过不了验证

Answer 3

我post完之后，它明明返回的是成功的，但一跳转到另一个页面，就说我seesion过期，这是什么回事呢？？

Answer 4

我猜想它是不是用了ssLsession来保存session