使用jetty5和jetty6时遇到的奇怪的中文乱麻问题

通过post来传递中文变量时，request.setCharacterEncoding("GB2312")便可以解决中文乱码问题。
但是通过get方式传递中文变量时，用和post相同方法得到的却是乱麻。

如：
<form action="a.jsp" method="post">
  <input type="text" value="测试" name="test"><input type="submit" value="提交">
</form>
a.jsp中：
request.setCharacterEncoding("GB2312")
String a = request.getParameter("test");
得到是不是乱麻

但是通过<a href="a.jsp?test=测试">测试</a>这个连接以上面相同方式得到却是乱麻。

各位高手，是什么原因啊？怎么解决啊？我以前一直用的是jetty4，没有这个问题。

不管用什么服务器，使用get方式传递中文，都需要使用URLEncode，
当然对于tomcat，可以设置get使用的编码方式，但那不是最好的方法。前者是。

楼上的兄弟
小弟刚接触web服务器
能不能给我详细解释哈在jetty中如何配置URLEncode啊？
我用下面这种方式测试也是乱麻：
<a href="c.jsp?test=<%=java.net.URLEncoder.encode("测试","GB2312") %>" target="_blank">测试</a>

多谢多谢！

我这里却出现这样的错误,google了一下,也没有找到什么有用的信息

HTTP ERROR: 500
gnu.xml.dom.DomDocument.setDocumentURI(Ljava/lang/String;)V
RequestURI=/admin/

Caused by:
java.lang.AbstractMethodError: gnu.xml.dom.DomDocument.setDocumentURI(Ljava/lang/String;)V
at org.apache.jasper.xmlparser.ParserUtils.parseXMLDocument(ParserUtils.java:213)
at org.apache.jasper.compiler.JspConfig.processWebDotXml(JspConfig.java:110)
at org.apache.jasper.compiler.JspConfig.init(JspConfig.java:282)
at org.apache.jasper.compiler.JspConfig.findJspProperty(JspConfig.java:347)
at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:126)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:387)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:579)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:344)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:464)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:358)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:467)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:367)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:185)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:715)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:402)
at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:268)
at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126)
at org.mortbay.jetty.servlet.DefaultServlet.doGet(DefaultServlet.java:418)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:467)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1075)
at com.ExtraTrading.filter.AccessRightFilter.doFilter(AccessRightFilter.java:96)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1066)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:365)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:185)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:715)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:402)
at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
at org.mortbay.jetty.Server.handle(Server.java:285)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:469)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:791)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:500)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:209)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:358)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:365)
at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442)

-----------------------------------------------------------
web.xml:

<?xml version="1.0" encoding="ISO-8859-1"?>

<!DOCTYPE web-app
    PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
    "http://java.sun.com/dtd/web-app_2_3.dtd">

<web-app>

    <display-name>t</display-name>
    <description>
      t system
    </description>

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/schedulingContext-timer.xml</param-value>
    </context-param>
   

    <!-- Define servlet-mapped and path-mapped example filters -->
    <filter>
        <filter-name>AccessFilter</filter-name>
        <filter-class>com.ExtraTrading.filter.AccessRightFilter</filter-class>
    </filter>

    </filter>

    <filter-mapping>
        <filter-name>AccessFilter</filter-name>
        <url-pattern>/admin/*</url-pattern>
    </filter-mapping>


    <listener>
        <listener-class>com.ExtraTrading.server.ContextListener</listener-class>
    </listener>

    <servlet>
        <servlet-name>webwork</servlet-name>
        <servlet-class>com.opensymphony.webwork.dispatcher.ServletDispatcher</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet>
        <servlet-name>velocity</servlet-name>
        <servlet-class>com.opensymphony.webwork.views.velocity.WebWorkVelocityServlet</servlet-class>
        <load-on-startup>2</load-on-startup>
    </servlet>

    <servlet>
        <servlet-name>context</servlet-name>
        <servlet-class>org.springframework.web.context.ContextLoaderServlet</servlet-class>
        <load-on-startup>3</load-on-startup>
    </servlet>



    <servlet-mapping>
        <servlet-name>webwork</servlet-name>
        <url-pattern>*.action</url-pattern>
    </servlet-mapping>


    <taglib>
        <taglib-uri>webwork</taglib-uri>
        <taglib-location>/WEB-INF/lib/webwork-2.1.1.jar</taglib-location>
    </taglib>

</web-app>