tomcat使用cookies缓存的时候中文报错解决办法 java.lang.IllegalArgumentException: Control character in cookie value or attribute.

             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 {
131415publicvoid doGet(HttpServletRequest request, HttpServletResponse response)
16throws 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    }
24publicvoid doPost(HttpServletRequest request, HttpServletResponse response)
25throws 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 {
1314    @Override
15protectedvoid doGet(HttpServletRequest req, HttpServletResponse resp)
16throws ServletException, IOException {
17             Cookie[] cookies = req.getCookies();
18for (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
26protectedvoid doPost(HttpServletRequest req, HttpServletResponse resp)
27throws 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>
1011   <servlet-mapping>
12     <servlet-name>CookieServlet</servlet-name>
13     <url-pattern>/CookieServlet</url-pattern>
14   </servlet-mapping>
1516   <servlet>
17       <servlet-name>getCookies</servlet-name>
18       <servlet-class>cn.lonecloud.GetCookies</servlet-class>
19   </servlet>
2021   <servlet-mapping>
22       <servlet-name>getCookies</servlet-name>
23       <url-pattern>/getCoookies</url-pattern>
24   </servlet-mapping>
2526 </web-app>