1 package cn.lonecloud;
 2 
 3 import java.io.IOException;
 4 import java.net.URLEncoder;
 5 
 6 import javax.servlet.ServletException;
 7 import javax.servlet.http.Cookie;
 8 import javax.servlet.http.HttpServlet;
 9 import javax.servlet.http.HttpServletRequest;
10 import javax.servlet.http.HttpServletResponse;
11 
12 public class CookieServlet extends HttpServlet {
13 
14 
15     public void doGet(HttpServletRequest request, HttpServletResponse response)
16             throws ServletException, IOException {
17         // 该字符含有中文
18         String s="测试 cookies";
19         String encode = URLEncoder.encode(s,"UTF-8");
20         Cookie cookie=new Cookie("Hello", encode);
21         response.addCookie(cookie);
22         response.getWriter().append("dssd");
23     }
24     public void doPost(HttpServletRequest request, HttpServletResponse response)
25             throws ServletException, IOException {
26     }
27 }

 1 package cn.lonecloud;
 2 
 3 import java.io.IOException;
 4 import java.net.URLDecoder;
 5 
 6 import javax.servlet.ServletException;
 7 import javax.servlet.http.Cookie;
 8 import javax.servlet.http.HttpServlet;
 9 import javax.servlet.http.HttpServletRequest;
10 import javax.servlet.http.HttpServletResponse;
11 
12 public class GetCookies extends HttpServlet {
13 
14     @Override
15     protected void doGet(HttpServletRequest req, HttpServletResponse resp)
16             throws ServletException, IOException {
17             Cookie[] cookies = req.getCookies();
18             for (Cookie cookie : cookies) {
19                 String value = cookie.getValue();
20                 String decode = URLDecoder.decode(value, "UTF-8");
21                 resp.setCharacterEncoding("UTF-8");
22                 resp.getWriter().append(decode);
23             }
24     }
25     @Override
26     protected void doPost(HttpServletRequest req, HttpServletResponse resp)
27             throws ServletException, IOException {
28     }
29 }

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <web-app version="3.0"
 3     xmlns="http://java.sun.com/xml/ns/javaee"
 4     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 5     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
 6   <servlet>
 7     <servlet-name>CookieServlet</servlet-name>
 8     <servlet-class>cn.lonecloud.CookieServlet</servlet-class>
 9   </servlet>
10 
11   <servlet-mapping>
12     <servlet-name>CookieServlet</servlet-name>
13     <url-pattern>/CookieServlet</url-pattern>
14   </servlet-mapping>
15   
16   <servlet>
17       <servlet-name>getCookies</servlet-name>
18       <servlet-class>cn.lonecloud.GetCookies</servlet-class>
19   </servlet>
20   
21   <servlet-mapping>
22       <servlet-name>getCookies</servlet-name>
23       <url-pattern>/getCoookies</url-pattern>
24   </servlet-mapping>
25 
26 </web-app>