springMVC中配置JSTL的问题

麻烦高手解答，我下面的错误是什么意思？谢谢！HTTP Status 500 -type Exception reportmessagedescription The server encountered an internal error () that prevented it from fulfilling this request.exceptionorg.apache.jasper.JasperException: An exception occurred processing JSP page /login.jsp at line 74: <head></head> 
5: <body> 
6:     <form name="User" action="/myMVC/login.do" method="post">
7: <spring:bind path="command.username"> 
8:         <spring:message code="username"/><input type="text" name="${status.expression}" value="${status.value}"/><br>
9:            <font color="red"><b>${status.errorMessage}</b></font><br>
10:         </spring:bind>
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:413)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)root causejava.lang.IllegalStateException: No WebApplicationContext found: no ContextLoaderListener registered?
org.springframework.web.servlet.support.RequestContextUtils.getWebApplicationContext(RequestContextUtils.java:84)
org.springframework.web.servlet.support.RequestContext.initContext(RequestContext.java:206)
org.springframework.web.servlet.support.JspAwareRequestContext.initContext(JspAwareRequestContext.java:74)
org.springframework.web.servlet.support.JspAwareRequestContext.<init>(JspAwareRequestContext.java:48)
org.springframework.web.servlet.tags.RequestContextAwareTag.doStartTag(RequestContextAwareTag.java:65)
org.apache.jsp.login_jsp._jspService(login_jsp.java:79)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
其中 //////////////////web.xml/////////////////////
<web-app version="2.4" 
 xmlns="http://java.sun.com/xml/ns/j2ee" 
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
 xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
 http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    </servlet>    <servlet-mapping>
         <servlet-name>dispatcherServlet</servlet-name>
         <url-pattern>*.do</url-pattern>
</servlet-mapping>
<jsp-config>
<taglib> 
        <taglib-uri>/spring</taglib-uri> 
        <taglib-location>/WEB-INF/spring.tld</taglib-location> 
</taglib>
</jsp-config>
</web-app>//////////////login.jsp/////////////////<%@taglib prefix="spring" uri="/spring"%>
<%@page contentType="text/html;charset=GBK"%>
<html> 
<head></head> 
<body> 
    <form name="User" action="/myMVC/login.do" method="post">
<spring:bind path="command.username"> 
        <spring:message code="username"/><input type="text" name="${status.expression}" value="${status.value}"/><br>
          <font color="red"><b>${status.errorMessage}</b></font><br>
        </spring:bind>
<spring:bind path="command.password"> 
        <spring:message code="password"/>  <input type="password" name="${status.expression}" value="${status.value}"/><br>
          <font color="red"><b>${status.errorMessage}</b></font><br>
        </spring:bind>
<spring:bind path="command.password2"> 
         <spring:message code="password2"/>  <input type="password" name="${status.expression}" value="${status.value}"/><br>
          <font color="red"><b>${status.errorMessage}</b></font><br>
        </spring:bind>
<input type="submit" value="<spring:message code="submit"/>"/>
    </form> 
</body> 
</html>