出现以下问题HTTP Status 404 - There is no Action mapped for namespace [/] and action name [] associated with context path [/StudentMessageControl].
来源：2-6 页面调用
huigui653824644
2016-10-24 21:15
按照教程做，在运行是报错：
网页的错误信息图如下：
控制台错误信息图如下：
struts2.xml的配置文件如下：
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<package name="default" namespace="/" extends="struts-default">
</package >
<package name="users" namespace="/users" extends="default">
<action name="*_*" class="action.{1}Action" method="{2}">
<result name="login_success">/users/Users_login_success.jsp</result>
<result name="login_failure">/users/Users_login.jsp</result>
</action>
</package>
</struts>Users_login.jsp如下：
<%@ page language="java" import="java.util.*" contentType="text/html; charset=utf-8" %>
<%@ taglib prefix="s" uri="/struts-tags"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!-- 这是一个html5 doctype声明 -->
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<title>用户登录</title>
</head>
<style type="text/css">
body{
margin:0px;
padding:0px;
overflow:hidden;
}
#wrapper{
position:absolute;
width:100%;
height:100%;
min-width:1280px;
min-height:680px;
overflow-x:hidden;
overflow-y:hidden;
background-image: -moz-linear-gradient(top,#77D1F6, #2F368F);
background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0, #77D1F6),color-stop(1, #2F368F));
}
#header{
height:100px;
width:100%;
}
#logo{
position:absolute;
float:left;
margin-left:5%;
margin-top:30px;
height:40px;
width:160px;
text-align:center;
}
#heading{
position:relative;
float:left;
margin-left:20%;
margin-top:-18px;
height:110px;
width:60%;
border-radius: 18px;
background-color:#1C75BC;
opacity:0.6;
}
#heading #title{
margin-top:40px;
text-align:center;
font-family:微软雅黑;
font-size:24px;
font-weight:bold;
}
#heading #subTitle{
margin-top:10px;
text-align:center;
font-family:Courier New;
}
#main{
margin-top:20px;
height:500px;
width:100%;
}
#mainBg{
position:relative;
float:left;
margin-left:20%;
margin-top:0px;
height:500px;
width:60%;
border-radius: 18px;
background-color:#000000;
opacity:0.5;
}
#mainPanel{
position:relative;
margin:25px;
height:450px;
border-radius: 18px;
background-image: -moz-linear-gradient(top,#EBEBEB, #BFBFBF);
background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0, #EBEBEB),color-stop(1, #BFBFBF));
}
#mainPanel #left{
float:left;
border-right:2px solid #F6F6F6;
position:relative;
top:10%;
height:80%;
width:49%;
border-right-style:groove;
}
#mainPanel #image{
position:relative;
height:256px;
width:256px;
left:15%;
top:12%;
background-image:url('../images/admin.png');
}
#mainPanel #right{
float:left;
position:relative;
height:90%;
width:49%;
top:5%;
}
#welcome{
margin-top:20px;
height:60px;
width:100%;
vertical-align: middle;
display: inline-block;
line-height: 60px;
text-align:center;
}
#welcome #welcome-text{
font-size:38px;
font-weight:bold;
font-family:微软雅黑;
text-shadow: 0 1px 1px #F6F6F6;
}
#user-name{
height:35px;
width:100%;
margin-top:20px;
vertical-align: middle;
display: inline-block;
line-height: 35px;
}
#user-password{
margin-top:20px;
height:35px;
width:100%;
vertical-align: middle;
display: inline-block;
line-height: 35px;
}
#user-checkcode{
margin-top:20px;
height:35px;
width:100%;
vertical-align: middle;
display: inline-block;
line-height: 35px;
}
#button-group{
margin-top:10px;
height:35px;
width:100%;
vertical-align: middle;
display: inline-block;
line-height: 35px;
text-align:center;
}
#error-tip{
margin-top:20px;
margin-left:5%;
height:40px;
width:90%;
vertical-align: middle;
display: inline-block;
line-height: 35px;
text-align:center;
border-bottom:2px solid #F6F6F6;
border-bottom-style:groove;
}
#error-tip #tip-text{
font-size:18px;
font-weight:bold;
font-family:微软雅黑;
color:red;
}
.item{
margin-left:20px;
font-family:微软雅黑;
font-size:20px;
font-weight:bold;
float: left;
width:80px;
margin-top: 3px;
text-align: center;
text-shadow: 0 1px 1px #F6F6F6;
}
.input{
vertical-align: middle;
display: inline-block;
}
#checkcode-img{
margin-top:3px;
height:20px;
width:60px;
}
.form-input{
height:20px;
}
.btn{
border:1px solid #cccccc;
cursor:pointer;
margin:10px 5px;
height:40px;
width:80px;
text-align:center;
border-radius: 4px;
border-color: #636263 #464647 #A1A3A5;
text-shadow: 0 1px 1px #F6F6F6;
background-image: -moz-linear-gradient(center top, #D9D9D9, #A6A6A6 49%, #A6A6A6 50%);
background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0, #D9D9D9),color-stop(1, #A6A6A6));
}
#footer{
margin-top:20px;
width:100%;
}
#footer #text{
text-align:center;
font-size:14px;
font-family:微软雅黑;
font-weight:bold;
}
</style>
<body>
<div id="wrapper">
<div id="header">
<div id="logo"></div>
<div id="heading">
<div id="title">后台管理系统</div>
<div id="subTitle">Ver 1.0</div>
</div>
</div>
<div id="main">
<div id="mainBg">
<div id="mainPanel">
<div id="left">
<div id="image"></div>
</div>
<div id="right">
<form name="loginForm" action="<%=path%>/users/Users_login.action" method="post">
<!-- start of login form -->
<div id="welcome">
<span id="welcome-text">管 理 登 录</span>
</div>
<div id="user-name">
<span class="item">用户名:</span>
<span><input type="text" name="username" class="form-input"></span>
</div>
<div id="user-password">
<span class="item">密 码:</span>
<span class="input"><input type="password" name="password" class="form-input"></span>
</div>
<div id="button-group">
<input type="submit" class="btn" value="登录"/>
<input type="reset" class="btn" value="重置"/>
</div>
<div>
<s:fielderror/> <!-- 显示表单验证的出错信息 -->
</div>
<!-- end of form -->
</form>
</div>
</div>
</div>
</div>
<div id="footer">
<div id="text">Copyright © 2009-2015 All Rights Reserved Powered By Simoniu</div>
</div>
</div>
</body>
</html>目录结构如下图：
请大神指教，哪里出了问题？
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2回答
-
- lsnFor
- 2016-10-25 13:48:13
从报错信息namespace[/]和action name[]（namespace="/", actionname=""）就是没有
从地址栏信息来看，项目按照web.xml默认配置会跳转到index.jsp
但是项目找不到index.jsp，一个空的请求，报404。
由于你有两个Web根目录（eclipse-WebContent，MyEclipse-WebRoot）
eclipse-Dynamic Web Project创建，默认状态没有web.xml和index.jsp
你可以将WebRoot文件夹中的文件和文件夹移动到WebContext目录下，并添加web.xml文件及其配置
如果允许建议按照课程的环境配置学习。
-
- 慕粉3949715
- 2016-11-01 22:44:00
在struts.xml文件中<action><allowed-methods>login</allowed-methods></action>
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