httpclient 3.1跳过https请求SSL的验证

一.commons-httpclient 3.1 包。一般请求采用最新的httpclient4.5就可以了

  commons-httpclient
  commons-httpclient
  3.1

二.实现3个类

1.MyX509TrustManager（方法直接实现X509TrustManager，X509TrustManager在javax.net.ssl.X509TrustManager里面）

import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.ssl.X509TrustManager;

public class MyX509TrustManager implements X509TrustManager {
    /* (non-Javadoc)
    * @see javax.net.ssl.X509TrustManager#checkClientTrusted(java.security.cert.X509Certificate[], java.lang.String)
    */
    public void checkClientTrusted(X509Certificate[] arg0, String arg1)
            throws CertificateException {

    }
    /* (non-Javadoc)
     * @see javax.net.ssl.X509TrustManager#checkServerTrusted(java.security.cert.X509Certificate[], java.lang.String)
     */
    public void checkServerTrusted(X509Certificate[] arg0, String arg1)
            throws CertificateException {

    }
    /* (non-Javadoc)
     * @see javax.net.ssl.X509TrustManager#getAcceptedIssuers()
     */
    public X509Certificate[] getAcceptedIssuers() {
        return null;
    }
}

2.MySecureProtocolSocketFactory（需要用到SSLContext，改写一个实现SecureProtocolSocketFactory的方法）

注意：SSLContext context = SSLContext.getInstance("SSL");不同编译环境对应的请求证书不一样，错误的版本会导致报错

请求时报如下错：

javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure

（注：JDK版本的默认协议，我当前用的是JDK1.7所以JDK1.7默认使用的是TLSv1.0，虽然JDK1.7也支持TLSv1.2 TLSv1.1）

 

import java.io.IOException;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import org.apache.commons.httpclient.ConnectTimeoutException;
import org.apache.commons.httpclient.HttpClientError;
import org.apache.commons.httpclient.params.HttpConnectionParams;
import org.apache.commons.httpclient.protocol.ControllerThreadSocketFactory;
import org.apache.commons.httpclient.protocol.SecureProtocolSocketFactory;

public class MySecureProtocolSocketFactory implements SecureProtocolSocketFactory {

    //添加一个属性，主要目的获取ssl跳过验证
    private SSLContext sslContext = null;
    /**
     * Constructor for MySecureProtocolSocketFactory.
     */
    public MySecureProtocolSocketFactory() {
    }
    /**
     * 创建一个获取SSLContext的方法，导入MyX509TrustManager进行初始化
     * @return
     */
    private static SSLContext createEasySSLContext() {
        try {
            SSLContext context = SSLContext.getInstance("根据环境去配置不同版本：TLSv1.0");
            context.init(null, new TrustManager[] { new MyX509TrustManager() },
                    null);
            return context;
        } catch (Exception e) {
            throw new HttpClientError(e.toString());
        }
    }

    /**
     * 判断获取SSLContext
     * @return
     */
    private SSLContext getSSLContext() {
        if (this.sslContext == null) {
            this.sslContext = createEasySSLContext();
        }
        return this.sslContext;
    }
    //后面的方法基本上带入相关参数
    /*
     * (non-Javadoc)
     *
     * @see org.apache.commons.httpclient.protocol.ProtocolSocketFactory#createSocket(java.lang.String,
     *      int, java.net.InetAddress, int)
     */
    public Socket createSocket(String host, int port, InetAddress clientHost,int clientPort) throws IOException, UnknownHostException {
        return getSSLContext().getSocketFactory().createSocket(host, port,clientHost, clientPort);
    }

    /*
     * (non-Javadoc)
     *
     * @see org.apache.commons.httpclient.protocol.ProtocolSocketFactory#createSocket(java.lang.String,
     *      int, java.net.InetAddress, int,
     *      org.apache.commons.httpclient.params.HttpConnectionParams)
     */
    public Socket createSocket(final String host, final int port,final InetAddress localAddress, final int localPort,
                               final HttpConnectionParams params) throws IOException,UnknownHostException, ConnectTimeoutException {
        if (params == null) {
            throw new IllegalArgumentException("Parameters may not be null");
        }
        int timeout = params.getConnectionTimeout();
        if (timeout == 0) {
            return createSocket(host, port, localAddress, localPort);
        } else {
            return ControllerThreadSocketFactory.createSocket(this, host, port,localAddress, localPort, timeout);
        }
    }

    /*
     * (non-Javadoc)
     *
     * @see SecureProtocolSocketFactory#createSocket(java.lang.String,int)
     */
    public Socket createSocket(String host, int port) throws IOException,UnknownHostException {
        return getSSLContext().getSocketFactory().createSocket(host, port);
    }

    /*
     * (non-Javadoc)
     *
     * @see SecureProtocolSocketFactory#createSocket(java.net.Socket,java.lang.String,int,boolean)
     */
    public Socket createSocket(Socket socket, String host, int port,boolean autoClose) throws IOException, UnknownHostException {
        return getSSLContext().getSocketFactory().createSocket(socket, host,port, autoClose);
    }
}

3.httpclient实现的方式很简单，只要声明MySecureProtocolSocketFactory加入就可以了Protocol

import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.protocol.Protocol;
import org.apache.commons.httpclient.protocol.ProtocolSocketFactory;
/*
 * 利用HttpClient进行post请求的工具类
 */
public class HttpClientUtil {

    public static String doGet(String url) throws Exception {
        //声明
        ProtocolSocketFactory fcty = new MySecureProtocolSocketFactory();
        //加入相关的https请求方式
        Protocol.registerProtocol("https", new Protocol("https", fcty, 443));
        //发送请求即可【后续请求可参考其他工具类完成，跳过认证只需要配置上面的声明就可以了】
        org.apache.commons.httpclient.HttpClient httpclient = new org.apache.commons.httpclient.HttpClient();
        GetMethod httpget = new GetMethod(url);
        System.out.println("======url:" + url);
        try {
            httpclient.executeMethod(httpget);
            return httpget.getResponseBodyAsString();
        } catch (Exception ex) {
            ex.printStackTrace();
            throw new Exception(ex.getMessage());
        } finally {
            httpget.releaseConnection();
        }
    }

}

总结

只要声明MySecureProtocolSocketFactory加入Protocol，然后就可以实现认证跳过了