struts配置出现的问题

[plusjava]

一个最简单的jsp页面，，，可是出错，不何故
type Exception report

message

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

exception

javax.servlet.ServletException: Cannot retrieve mapping for action /login
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:867)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:800)
org.apache.jsp.form.login_jsp._jspService(login_jsp.java:93)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)


root cause

javax.servlet.jsp.JspException: Cannot retrieve mapping for action /login
org.apache.struts.taglib.html.FormTag.lookup(FormTag.java:810)
org.apache.struts.taglib.html.FormTag.doStartTag(FormTag.java:506)
org.apache.jsp.form.login_jsp._jspx_meth_html_form_0(login_jsp.java:108)
org.apache.jsp.form.login_jsp._jspService(login_jsp.java:83)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)

[manyroads]

检查一下配置文件struts-config.xml

特别是action-mappings

[huafong]

是不是<html:form action="">
action中忘写xxx.do

[du9232]

Cannot retrieve mapping for action /login

Action "login"没有配

[xliujun]

检查一下配置文件struts-config.xml中的对应的/Action的forward 参数是否和你的action类中返回的Actionmapping字符串匹配。如果是多配置文件的Struts配置文件则，看看是否定义了相同的Action

[abswdy]

检查一下配置文件struts-config.xml ，特别是action-mappings缺少 name＝"actionForum"配置选项

[kui]

JavaWebStudio自动配置，可减少出错机会。http://dev.csdn.net/user/kui

[umbrella1984]

配置文件映射的动作与请求的动作没有找到一个匹配的

[sunny518]

jsp中form不要弄成了<form action="">
而应该才用struct的标签，否则是找不到的
<html:form action="/login.do">