请问为什么我从cookie中读取的中文,比如说"北京",会变成"%u5317%u4EAC"的字符串呢?

Question

服务器环境为linuxCookie cookies[] = request.getCookies();

   if (cookies != null){
        for(int i=0; i<cookies.length; i++) {
            if(cookies[i].getName().equals("city")) {
cityName =  cookies[i].getValue();
}
        }
    }<%=cityName%>就变成了"%u5317%u4E为什么呢?

Answer 1

"%u5317%u4EAC"是“北京”的utf-8 编码你转码输出就好了

Answer 2

你用脚本执行这段代码看看： ^_^
<SCRIPT LANGUAGE="JavaScript">
<!--
alert(unescape("%u5317%u4EAC"));
//-->
</SCRIPT>

Answer 3

在往cookies中存之前   先把要存的东西
java.net.URLEncoder.encode（）一下
读的时候在转过来。  encode前要注意程序本身的字符编码。

Answer 4

String username=new String(username.getBytes("ISO8859-1"),"GBK");
System.out.println("username : "+username);
一定是对的,今天我刚好碰到这个问题............................

Answer 5

<%@ page import="java.sql.*,java.net.*"%>
//这样建立COOKIE,name为你要存的字符串
Cookie cookie1=new Cookie("yourname","new String(java.net.URLEncoder.encode(name));
-----------------------------------------------------------------------------------
//读的时候
new String(java.net.URLDecoder.decode(cookies[i].getValue()));

Answer 6

Cookie cookie1=new Cookie("yourname",new String(java.net.URLEncoder.encode(name));
前面打错了

Answer 7

<2006-8-21 下午16时27分49秒 CST> <Error> <HTTP> <BEA-101019> <[ServletContext(id
=31268562,name=web,context-path=/web)] Servlet failed with IOException
weblogic.servlet.jsp.CompilationException: Compilation of D:\bea\user_projects\m
ydomain\.\myserver\.wlnotdelete\extract\myserver_web_web\jsp_servlet\_test\__wri
tecookie.java failed.
        at weblogic.servlet.jsp.JspStub.compilePage(JspStub.java:446)
        at weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:220)
        at weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:172)
        at weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.
java:504)
        at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
pl.java:349)
        at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:28)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.ja
va:27)
        at com.lxxx.common.utils.SetEncodingFilter.doFilter(SetEncodingFilter.ja
va:61)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.ja
va:27)
        at weblogic.servlet.internal.WebAppServletContext$ServletInvocationActio
n.run(WebAppServletContext.java:6297)
        at weblogic.security.acl.internal.AuthenticatedSubject.doAs(Authenticate
dSubject.java:317)
        at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:
97)
        at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppSe
rvletContext.java:3575)
        at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestIm
pl.java:2573)
        at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:178)
        at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:151)
Caused by: java.io.IOException: Compiler failed executable.exec
        at weblogic.utils.compiler.CompilerInvoker.compileMaybeExit(CompilerInvo
ker.java:505)
        at weblogic.utils.compiler.CompilerInvoker.compile(CompilerInvoker.java:
364)
        at weblogic.utils.compiler.CompilerInvoker.compile(CompilerInvoker.java:
372)
        at weblogic.utils.compiler.CompilerInvoker.compile(CompilerInvoker.java:
357)
        at weblogic.servlet.jsp.JspStub.compilePage(JspStub.java:419)
        ... 15 more
>