通过cookie保存用户信息并显示时，报错 An invalid character [32] was present in the Cookie value

slowside45 2017-07-31 04:50:33
按照教材例程学习用cookie保存用户信息并传递cookie值时，遇到了如下问题：

信息输入、保存界面代码：
<%@ page language="java" contentType="text/html; charset=GB18030"

    pageEncoding="GB18030"%>

    <%@ page import="java.net.URLDecoder" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=GB18030">

<title>通过cookie保存并读取用户信息</title>

</head>

<body>

<% 

   Cookie[] cookies = request.getCookies();

   String user="";

   String date="";

   if(cookies != null){

	   for(int i=0;i<cookies.length;i++){

		   if(cookies[i].getName().equals("mrCookie")){

			   user=URLDecoder.decode(cookies[i].getValue().split("#")[0]);

		       date = cookies[i].getValue().split("#")[1];      

		   } 

	   }

   }

   if("".equals(user)&&"".equals(date)){

%>

   游客您好，欢迎初次光临。

   <form action="deal.jsp"method="post">

                      请输入姓名：<input name="user"type="text">

       <input name="button"type="submit"value="确定">

   </form>

<% }else{

	 %>	

                  欢迎[<b><%= user%></b>]再次光临<br>

                  您注册的时间是：<%= date %>

<%                  

}

   %>

   

  

</body>

</html>


信息处理页面代码：
<%@ page language="java" contentType="text/html; charset=GB18030"

    pageEncoding="GB18030"%>

<%@ page import="java.net.URLEncoder" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>



<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8">

<title>写入cookies</title>

</head>

<body>

 <% 

     request.setCharacterEncoding("GB18030");

     String user=URLEncoder.encode(request.getParameter("user"),"utf-8");

     Cookie cookie = new Cookie("mrCookie",user+"#"+new java.util.Date().toLocaleString());

     cookie.setMaxAge(60*60*24*30);

     response.addCookie(cookie);

 %>

 <script type="text/javascript">window.location.href="index.jsp"</script>

</body>

</html>


错误信息如下：
严重: Servlet.service() for servlet [jsp] in context with path [/第六章JSP内置对象] threw exception [An exception occurred processing JSP page [/deal.jsp] at line [17]

14: String user=URLEncoder.encode(request.getParameter("user"),"utf-8");
15: Cookie cookie = new Cookie("mrCookie",user+"#"+new java.util.Date().toLocaleString());
16: cookie.setMaxAge(60*60*24*30);
17: response.addCookie(cookie);
18: %>
19: <script type="text/javascript">window.location.href="index.jsp"</script>
20: </body>


Stacktrace:] with root cause
java.lang.IllegalArgumentException: An invalid character [32] was present in the Cookie value
at org.apache.tomcat.util.http.Rfc6265CookieProcessor.validateCookieValue(Rfc6265CookieProcessor.java:182)
at org.apache.tomcat.util.http.Rfc6265CookieProcessor.generateHeader(Rfc6265CookieProcessor.java:115)
at org.apache.catalina.connector.Response.generateCookieString(Response.java:1010)
at org.apache.catalina.connector.Response.addCookie(Response.java:962)
at org.apache.catalina.connector.ResponseFacade.addCookie(ResponseFacade.java:385)
at org.apache.jsp.deal_jsp._jspService(deal_jsp.java:127)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:443)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:385)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:329)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:475)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:625)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:498)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:796)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1372)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)




Internet选项中关于cookie使用的权限已全部设置为允许，请各位帮帮忙
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verejava 2018-07-14
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是否有中文， 把中文转码 URLEncoder.encode
一字清华 2018-07-14
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引用 10 楼 VBProFan 的回复:
看一下 new java.util.Date().toLocaleString() 的日期和时间之间是不是有个空格，replace(" ","_") 试试



改写这句：Cookie cookie=new Cookie("mrCookie",user+"#"+new java.util.Date().toLocaleString().replace(" ", "_"));
就好了
House233 2018-03-30
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String user=URLEncoder.encode(request.getParameter("user"),"utf-8"); Cookie cookie = new Cookie("mrCookie",user+"#"+new java.util.Date().toLocaleString()); 这里把cookie的value整体进行encode试试，改成 String user=URLEncoder.encode(request.getParameter("user")+"#"+new java.util.Date().toLocaleString(),"utf-8"); Cookie cookie = new Cookie("mrCookie",user);
VBProFan 2018-03-17
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不知道王国辉大神写书的时候是没有测试呢，还是他机子的时间格式没有空格，唉~
VBProFan 2018-03-17
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看一下 new java.util.Date().toLocaleString() 的日期和时间之间是不是有个空格，replace(" ","_") 试试
VBProFan 2018-03-17
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new java.util.Date().toLocaleString()
slowside45 2017-07-31
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引用 7 楼 pany1209 的回复:
[quote=引用 4 楼 slowside45 的回复:] [quote=引用 2 楼 pany1209 的回复:] java.lang.IllegalArgumentException: An invalid character [32] was present in the Cookie value。。。 降低tomcat版本或者处理掉空格
没有发现空格字符。我的tomcat版本是9.0 需要降低到什么版本？[/quote] tomcat7......[/quote] 很尴尬的是我的jdk是1.8 tomcat7不支持 这个例程我是不是该跳过它了
李德胜1995 2017-07-31
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引用 4 楼 slowside45 的回复:
[quote=引用 2 楼 pany1209 的回复:] java.lang.IllegalArgumentException: An invalid character [32] was present in the Cookie value。。。 降低tomcat版本或者处理掉空格
没有发现空格字符。我的tomcat版本是9.0 需要降低到什么版本？[/quote] tomcat7......
slowside45 2017-07-31
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引用 5 楼 zc881124 的回复:
String user=URLEncoder.encode(request.getParameter("user"),"utf-8"); 把user的值打印出来看看
不太明白怎么打印出来，我输入的值是a，没有别的符号，然后我把 Cookie cookie = new Cookie("mrCookie",user+"#"+new java.util.Date().toLocaleString()); 改成Cookie cookie = new Cookie("mrCookie",user+"#"+new java.util.Date().toString()); 报错如下：Type Exception Report Message An exception occurred processing JSP page [/deal.jsp] at line [17] Description The server encountered an unexpected condition that prevented it from fulfilling the request. Exception org.apache.jasper.JasperException: An exception occurred processing JSP page [/deal.jsp] at line [17] 14: String user=URLEncoder.encode(request.getParameter("user"),"utf-8"); 15: Cookie cookie = new Cookie("mrCookie",user+"#"+new java.util.Date().toString()); 16: cookie.setMaxAge(60*60*24*30); 17: response.addCookie(cookie); 18: %> 19: <script type="text/javascript">window.location.href="index.jsp"</script> 20: </body>
110成成 2017-07-31
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String user=URLEncoder.encode(request.getParameter("user"),"utf-8"); 把user的值打印出来看看
slowside45 2017-07-31
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引用 2 楼 pany1209 的回复:
java.lang.IllegalArgumentException: An invalid character [32] was present in the Cookie value。。。 降低tomcat版本或者处理掉空格
没有发现空格字符。我的tomcat版本是9.0 需要降低到什么版本？
slowside45 2017-07-31
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引用 1 楼 zc881124 的回复:
java.lang.IllegalArgumentException: An invalid character [32] was present in the Cookie value Ascii 32对应的是空格，检查下是否存在空格。
您指的是获取cookie值的源代码中有无空格 还是网页表单输入内容有无空格？ 我排查后没发现空格。 原文中的错误信息是输入用户信息后出现的，若不打开输入用户信息的网页，直接打开处理cookie的网页（原文中第二个代码），错误提示如下： HTTP Status 500 – Internal Server Error -------------------------------------------------------------------------------- Type Exception Report Message An exception occurred processing JSP page [/deal.jsp] at line [14] Description The server encountered an unexpected condition that prevented it from fulfilling the request. Exception org.apache.jasper.JasperException: An exception occurred processing JSP page [/deal.jsp] at line [14] 11: <body> 12: <% 13: request.setCharacterEncoding("GB18030"); 14: String user=URLEncoder.encode(request.getParameter("user"),"utf-8"); 15: Cookie cookie = new Cookie("mrCookie",user+"#"+new java.util.Date().toLocaleString()); 16: cookie.setMaxAge(60*60*24*30); 17: response.addCookie(cookie); Stacktrace: org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:588) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:481) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:385) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:329) javax.servlet.http.HttpServlet.service(HttpServlet.java:741) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) Root Cause java.lang.NullPointerException java.net.URLEncoder.encode(URLEncoder.java:204) org.apache.jsp.deal_jsp._jspService(deal_jsp.java:124) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) javax.servlet.http.HttpServlet.service(HttpServlet.java:741) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:443) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:385) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:329) javax.servlet.http.HttpServlet.service(HttpServlet.java:741) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) Note The full stack trace of the root cause is available in the server logs.
李德胜1995 2017-07-31
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java.lang.IllegalArgumentException: An invalid character [32] was present in the Cookie value。。。 降低tomcat版本或者处理掉空格
110成成 2017-07-31
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java.lang.IllegalArgumentException: An invalid character [32] was present in the Cookie value Ascii 32对应的是空格，检查下是否存在空格。
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