前台jsp页面1使用Struts2标签就报错

2013-03-21

前台jsp页面一使用Struts2标签就报错web.xml代码?xml version1.0 encodingUTF-8?web-app xmlns:x

前台jsp页面一使用Struts2标签就报错
web.xml代码


<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>a01</display-name>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
  
  <filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
  </filter>
  <filter-mapping>
  <filter-name>struts2</filter-name>
  <url-pattern>/*</url-pattern>
  </filter-mapping>
</web-app>

前台index.jsp


<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<%@ taglib uri="/struts-tags" prefix="s" %>
<!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=ISO-8859-1">
<title>Insert title here</title>
</head>
<body >
<s:form action="login" method="post"></s:form>
</body>
</html>

上面的页面上访问就报错：
HTTP Status 500 - An exception occurred processing JSP page /index.jsp at line 11

--------------------------------------------

type Exception report

message An exception occurred processing JSP page /index.jsp at line 11

description The server encountered an internal error that prevented it from fulfilling this request.

exception
org.apache.jasper.JasperException: An exception occurred processing JSP page /index.jsp at line 11

8: <title>Insert title here</title>
9: </head>
10: <body >
11: <s:form action="login" method="post"></s:form>
12: </body>
13: </html>

Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:521)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:430)
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 cause
The Struts dispatcher cannot be found. This is usually caused by using Struts tags without the associated filter. Struts tags are only usable when the request has passed through its servlet filter, which initializes the Struts dispatcher needed for this tag. - [unknown location]
org.apache.struts2.views.jsp.TagUtils.getStack(TagUtils.java:60)

org.apache.struts2.views.jsp.StrutsBodyTagSupport.getStack(StrutsBodyTagSupport.java:44)
org.apache.struts2.views.jsp.ComponentTagSupport.doStartTag(ComponentTagSupport.java:48)
org.apache.jsp.index_jsp._jspx_meth_s_005fform_005f0(index_jsp.java:97)
org.apache.jsp.index_jsp._jspService(index_jsp.java:66)
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:388)
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)

note The full stack trace of the root cause is available in the Apache Tomcat/6.0.36 logs.
--------------------------------------------
Apache Tomcat/6.0.36

只要把index.jsp中的“<%@ taglib uri="/struts-tags" prefix="s" %>”和“<s:form action="login" method="post"></s:form>”去掉就能运行。 struts 标签
[解决办法]
org.apache.struts2.dispatcher.FilterDispatcher改为这个
[解决办法]
访问路径是通过action 跳转到jsp的吗？
如果是通过url直接访问jsp会报错的
[解决办法]
jar包呢，都哪些

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前台jsp页面1使用Struts2标签就报错