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  • 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.

    报错出现

      

    java.lang.IllegalArgumentException: Control character in cookie value or attribute.

    at org.apache.tomcat.util.http.CookieSupport.isHttpSeparator(CookieSupport.java:205)

    at org.apache.tomcat.util.http.CookieSupport.isHttpToken(CookieSupport.java:229)

    at org.apache.tomcat.util.http.ServerCookie.appendCookieValue(ServerCookie.java:185)

    at org.apache.catalina.connector.Response.generateCookieString(Response.java:1054)

    at org.apache.catalina.connector.Response.addCookie(Response.java:996)

    at org.apache.catalina.connector.ResponseFacade.addCookie(ResponseFacade.java:380)

    at cn.lonecloud.CookieServlet.doGet(CookieServlet.java:18)

    at javax.servlet.http.HttpServlet.service(HttpServlet.java:624)

    at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)

    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)

    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:218)

    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)

    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)

    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)

    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)

    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)

    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)

    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:442)

    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1082)

    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:623)

    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)

    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)

    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)

    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

    at java.lang.Thread.run(Thread.java:745)

     该报错是由于这个中文的编码的问题中文采用的是unicode编码,而英文采用的是ASCII编码,所以当COOkie保存中文的时候需要对中文进行编码,而且从Cookie中取出内容的时候也要进行解码,编码和解码可以使用

    URLEncoder.encode(name, "utf-8");

    URLDecoder.decode(cookies[i].getName(),"utf-8");
    示例:
      
    CookieServlet.java  生成cookies
    
    
     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 }
    GetCookies.java  获取cookies
     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 }

    web.xml  配置文件

     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>
     
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  • 原文地址:https://www.cnblogs.com/lonecloud/p/6422882.html
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