一、因为在使用https发送请求的时候会涉及，验证方式。但是这种方式在使用的时候很不方便。特别是在请求外部接口的时候，所以这我写了一个跳过验证的方式。（供参考）
二、加入包，这里用的是commons-httpclient 3.1 的包。一般请求采用最新的httpclient4.5就可以了
<dependency> ?<groupId>commons-httpclient</groupId> ?<artifactId>commons-httpclient</artifactId> ?<version>3.1</version></dependency>
三、这里我们实现3个类
1、MyX509TrustManager（这个方法直接实现X509TrustManager，X509TrustManager在javax.net.ssl.X509TrustManager里面）
这里直接实现不用改任何东西
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（这里我们需要用到SSLContext，还需要改写一个实现SecureProtocolSocketFactory的方法）
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 { ???//这里添加一个属性，主要目的就是来获取ssl跳过验证 ???private SSLContext sslContext = null; ???/** ????* Constructor for MySecureProtocolSocketFactory. ????*/ ???public MySecureProtocolSocketFactory() { ???} ???/** ????* 这个创建一个获取SSLContext的方法，导入MyX509TrustManager进行初始化 ????* @return ????*/ ???private static SSLContext createEasySSLContext() { ???????try { ???????????SSLContext context = SSLContext.getInstance("SSL"); ???????????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; ???} ???//后面的方法基本上就是带入相关参数就可以了 ???/* ????* (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、然后就是httpclient了，这里实现的方式很单间了，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 ???????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(); ???????} ???}}四、这里基本上就完成了，在会用的时候只要声明MySecureProtocolSocketFactory加入就可以了Protocol，然后就可以实现验证的跳过过了
转自：http://www.cnblogs.com/ll409546297/p/7154542.html
httpclient 3.1跳过https请求SSL的验证
原文地址：http://www.cnblogs.com/endtel/p/7604660.html