java tomcat 搭建SSL双向认证以及httpclient 代码

最近一直在尝试搭建apache+tomcat的单向认证ssl环境。网上看了很多令我眼花缭乱的资料。先开始用mod_jk的方式始终不能成功。后来还是用mod_proxy方式来实现。但这种方式貌似性能不是太好，这里如果有朋友知道确实可行的资料。可以告诉小弟一声。
然后又开始研究apache+tomcat的双向认证环境。没找到apache+tomcat的解决方案。倒是找到只是基于tomcat的双向认证方案。经我认证是可行的。。在此要谢谢原创作者。

[url=http://www.blogjava.net/icewee/archive/2012/06/04/379947.html]Java Tomcat SSL 服务端/客户端双向认证（一）[/url]
[url=http://www.blogjava.net/icewee/archive/2012/06/05/379983.html]Java Tomcat SSL 服务端/客户端双向认证のApache HttpClient（二）[/url]

另外附一下httpclient发送http请求、发送https单向认证请求、发送https双向请求代码
我用的httpClient版本是4.2.2，低版本的可能不支持。建议大家大家去官网下载一个完整的发行包

package com.cntaiping.clm.utils;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.security.KeyManagementException;
import java.security.KeyStore;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.http.Header;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.ParseException;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;

public class HttpClientUtils {
	private static Log log=LogFactory.getLog(HttpClientUtils.class);
	private static final String KEY_STORE_TYPE_JKS = "jks";
    private static final String KEY_STORE_TYPE_P12 = "PKCS12";
    private static final String SCHEME_HTTPS = "https";
    private static final int HTTPS_PORT = 8443;
    private static final String HTTPS_URL = "https://127.0.0.1:8443/TestDemo/sslServlet";
    private static final String KEY_STORE_CLIENT_PATH = "D:/key/client.p12";
    private static final String KEY_STORE_TRUST_PATH = "D:/key/client.truststore";
    private static final String KEY_STORE_PASSWORD = "aaaaaa";
    private static final String KEY_STORE_TRUST_PASSWORD = "aaaaaa";

    /**
	 * 使用httpClient 发出http请求
	 * 均为POST请求
	 * @param url
	 * @param xmlStr
	 * @return
	 */
	public static String  httpClient(String url,String xmlStr) {
		String returnStr="";
		HttpClient client = new DefaultHttpClient();
		HttpPost post=new HttpPost(url);
		post.setHeader("content-type", "text/xml; charset=UTF-8");
		StringEntity strEntity;
		try {
			strEntity = new StringEntity(xmlStr, "UTF-8");
			post.setEntity(strEntity);
			HttpResponse response = client.execute(post);
			HttpEntity entity = response.getEntity();
			if(null!=entity){
				BufferedReader reader=new BufferedReader(new InputStreamReader(entity.getContent(),"UTF-8"));
				StringBuffer buff=new StringBuffer();
				while((returnStr=reader.readLine())!=null){
					buff.append(returnStr);
				}
				returnStr=buff.toString();
//				returnStr=EntityUtils.toString(entity);
				log.info("returnStr:"+returnStr);
				post.abort();

				if(response != null) {
					Header headers[] = response.getAllHeaders();
					int i = 0;
					while (i < headers.length) {
						log.debug(headers[i].getName() + ":  "+ headers[i].getValue());
						i++;
					}
				}
			}
		} catch (UnsupportedEncodingException e) {
			log.info("程序出错："+e.getMessage());
		} catch (ClientProtocolException e) {
			log.info("程序出错："+e.getMessage());
		} catch (IOException e) {
			log.info("程序出错："+e.getMessage());
		}finally{
			client.getConnectionManager().shutdown();
		}

		return returnStr;
	}

	/**
	 * 发送https请求
	 * 为单向请求
	 * @param url
	 * @param xmlStr
	 * @return
	 */
	public static String httpsClient(String url,String xmlStr) {
		long responseLength = 0;                         //响应长度  
        String responseContent = "";                     //响应内容  
        HttpClient httpClient = new DefaultHttpClient(); //创建默认的httpClient实例  
        X509TrustManager xtm = new X509TrustManager(){   //创建TrustManager  
            public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {}  
            public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {}  
            public X509Certificate[] getAcceptedIssuers() { 
            	return null;   //return new java.security.cert.X509Certificate[0];  
            }
        };  
        try {  
            //TLS1.0与SSL3.0基本上没有太大的差别，可粗略理解为TLS是SSL的继承者，但它们使用的是相同的SSLContext  
            SSLContext ctx = SSLContext.getInstance("TLS");  

            //使用TrustManager来初始化该上下文，TrustManager只是被SSL的Socket所使用  
            ctx.init(null, new TrustManager[]{xtm}, null);  

            //创建SSLSocketFactory  
            SSLSocketFactory socketFactory = new SSLSocketFactory(ctx);  

            //通过SchemeRegistry将SSLSocketFactory注册到我们的HttpClient上  
            httpClient.getConnectionManager().getSchemeRegistry().register(new Scheme("https", 443, socketFactory));  

            HttpPost httpPost = new HttpPost(url);                        //创建HttpPost  
//            List formParams = new ArrayList(); //构建POST请求的表单参数  
//            for(Map.Entry entry : params.entrySet()){  
//                formParams.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));  
//            }  
            httpPost.setEntity(new StringEntity(xmlStr, "UTF-8"));  

            HttpResponse response = httpClient.execute(httpPost); //执行POST请求  
            HttpEntity entity = response.getEntity();             //获取响应实体  

            if (null != entity) {  
                responseLength = entity.getContentLength();  
                responseContent = EntityUtils.toString(entity, "UTF-8");  
                EntityUtils.consume(entity); //Consume response content  
            }  
            System.out.println("请求地址: " + httpPost.getURI());  
            System.out.println("响应状态: " + response.getStatusLine());  
            System.out.println("响应长度: " + responseLength);  
            System.out.println("响应内容: " + responseContent);  
        } catch (KeyManagementException e) {  
            e.printStackTrace();  
        } catch (NoSuchAlgorithmException e) {  
            e.printStackTrace();  
        } catch (UnsupportedEncodingException e) {  
            e.printStackTrace();  
        } catch (ClientProtocolException e) {  
            e.printStackTrace();  
        } catch (ParseException e) {  
            e.printStackTrace();  
        } catch (IOException e) {  
            e.printStackTrace();  
        } finally {  
            httpClient.getConnectionManager().shutdown(); //关闭连接,释放资源  
        }
        return responseContent;
	}

	/**
	 * 发送https请求
	 * 为双向请求
	 * @param url
	 * @param xmlStr
	 * @return
	 */
	private static void ssl() throws Exception {
        HttpClient httpClient = new DefaultHttpClient();
        try {
            KeyStore keyStore  = KeyStore.getInstance(KEY_STORE_TYPE_P12);
            KeyStore trustStore  = KeyStore.getInstance(KEY_STORE_TYPE_JKS);
            InputStream ksIn = new FileInputStream(KEY_STORE_CLIENT_PATH);
            InputStream tsIn = new FileInputStream(new File(KEY_STORE_TRUST_PATH));
            try {
                keyStore.load(ksIn, KEY_STORE_PASSWORD.toCharArray());
                trustStore.load(tsIn, KEY_STORE_TRUST_PASSWORD.toCharArray());
            } finally {
                try { ksIn.close(); } catch (Exception ignore) {}
                try { tsIn.close(); } catch (Exception ignore) {}
            }
            SSLSocketFactory socketFactory = new SSLSocketFactory(keyStore, KEY_STORE_PASSWORD, trustStore);
            Scheme sch = new Scheme(SCHEME_HTTPS, HTTPS_PORT, socketFactory);
            httpClient.getConnectionManager().getSchemeRegistry().register(sch);
            HttpGet httpget = new HttpGet(HTTPS_URL);
            System.out.println("executing request" + httpget.getRequestLine());
            HttpResponse response = httpClient.execute(httpget);
            HttpEntity entity = response.getEntity();
            System.out.println("----------------------------------------");
            System.out.println(response.getStatusLine());
            if (entity != null) {
                System.out.println("Response content length: " + entity.getContentLength());
                BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(entity.getContent()));
                String text;
                while ((text = bufferedReader.readLine()) != null) {
                    System.out.println(text);
                }
                bufferedReader.close();
            }
            EntityUtils.consume(entity);
        } finally {
            httpClient.getConnectionManager().shutdown();
        }
    }
}