1 package com.webserver.webservice;  2   3 import java.io.ByteArrayInputStream;  4 import java.io.FileOutputStream;  5 import java.io.IOException;  6 import java.net.SocketTimeoutException;  7 import java.text.SimpleDateFormat;  8 import java.util.Date;  9 import java.util.Iterator; 10 import java.util.Map; 11 import java.util.Set; 12 import java.util.concurrent.ConcurrentHashMap; 13  14 import javax.servlet.ServletException; 15 import javax.servlet.annotation.WebServlet; 16 import javax.servlet.http.HttpServlet; 17 import javax.servlet.http.HttpServletRequest; 18 import javax.servlet.http.HttpServletResponse; 19  20 import org.apache.http.Header; 21 import org.apache.http.HttpResponse; 22 import org.apache.http.client.ClientProtocolException; 23 import org.apache.http.client.HttpClient; 24 import org.apache.http.client.methods.HttpPost; 25 import org.apache.http.entity.BasicHttpEntity; 26 import org.apache.http.impl.client.DefaultHttpClient; 27 import org.apache.http.params.CoreConnectionPNames; 28 import org.apache.http.util.EntityUtils; 29  30 /** 31  * Servlet implementation class Prompt 32  */ 33 @WebServlet("/Prompt") 34 public class Prompt extends HttpServlet { 35     private static final long serialVersionUID = 1L; 36     private static Map
     
       cookieMap  = new ConcurrentHashMap
      
       (); 37     public static String yuyinServer = "http://10.3.172.205:8080/RecognizePY/directRecognize";  38     /** 39      * @see HttpServlet#HttpServlet() 40      */ 41     public Prompt() { 42         super(); 43         // TODO Auto-generated constructor stub 44     } 45  46     /** 47      * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) 48      */ 49     protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 50         // TODO Auto-generated method stub 51         this.doPost(request, response); 52     } 53  54     /** 55      * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) 56      */ 57     protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 58         String session = request.getParameter("session").trim(); 59         //String token = request.getParameter("token").trim(); 60         response.setCharacterEncoding("UTF-8"); 61         response.setContentType("text/json;charset=utf-8"); 62         String firstCookie = ""; 63         //从原型管理器中获取原型对象 64         CookieData cookie = cookieMap.get(session); 65         //原型管理器包含该对象 66         if(cookie!=null){ 67             firstCookie = cookie.getCookie(); 68             cookie.setAccessDate(System.currentTimeMillis()); 69         } else { 70             //不包含就创建一个对象 并存到原型管理器中 71             CookieData tmpCookie = new CookieData(); 72             firstCookie = getCookie(); 73             tmpCookie.setCookie(firstCookie); 74             tmpCookie.setAccessDate(System.currentTimeMillis()); 75             cookieMap.put(session, tmpCookie); 76             //根据具体情况 原型对象在原型管理器中存放时间超过规定时间移除改原型对象 77             cleanCookieMap(); 78         } 79         //TODO 80         //.... 81          82     } 83      84      85     /** 86      * 客户端要记住返回的cookie 87      * @return 88      * @throws ClientProtocolException 89      * @throws IOException 90      */ 91     public String getCookie() throws ClientProtocolException, IOException{ 92         String firstCookie = ""; 93         try{ 94             HttpClient client = new DefaultHttpClient(); 95             HttpPost post = new HttpPost(yuyinServer); 96             //设置连接超时时间 97             client.getParams().setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, 2000); 98             //设置数据传输超时时间 99             client.getParams().setParameter(CoreConnectionPNames.SO_TIMEOUT, 6000);100             HttpResponse response = null;101             response = client.execute(post);102             if(response.getStatusLine().getStatusCode()==200){103                 //如果状态码为200,就是正常返回 104                 Header[] cookies = response.getHeaders("Set-Cookie");105                 for( int i=0;i
       
         keySet = cookieMap.keySet();211         Iterator
        
          it = keySet.iterator();212         while(it.hasNext()){213             String key = it.next();214             CookieData cookie = cookieMap.get(key);215             //如果cookie保存时间超过一小时 则移除216             if(currTime - cookie.getAccessDate()> 3600000 ){217                 cookieMap.remove(key);218             }219         }220     }221 }