Eclipse开发SSH框架的Web项目怎么总报404错误

[海之梦幻]

web.xml文件中：

<?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>Demo</display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:beans.xml</param-value>
</context-param>
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<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>

struts.xml文件中：

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>
<include file="struts-default.xml" />

<!-- 默认父类的action -->
<package name="system_default" extends="struts-default">
<global-results>
<result name="error">/error.jsp</result>
</global-results>

<global-exception-mappings>
<exception-mapping result="error" exception="java.lang.Exception"></exception-mapping>
</global-exception-mappings>
</package>

<!-- 前台页面跳转的action -->
<package name="front" extends="struts-default">
<global-results>
<result name="error">/error.jsp</result>
<result name="index">/index.jsp</result>
</global-results>

<!-- 首页action -->
<action name="saveUser" class="com.xt.action.SaveUserAction" method="execute()">
<result name="success">/listUserAction.action</result>
<result name="input">/saveUser.jsp</result>
</action>


</package>
</struts>

beans.xml文件中:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">
<context:annotation-config />
<context:component-scan base-package="com.xt" />

<bean
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<value>classpath:jdbc.properties</value>
</property>
</bean>

<bean id="dataSource" destroy-method="close"
class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName"
value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
</bean>



<bean id="sf"
class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="packagesToScan">
<list>
<value>com.xt.bean</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">
org.hibernate.dialect.MySQLDialect
</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hbm2ddl.auto">update</prop>
</props>
</property>
</bean>
</beans>

hibernate.cfg.xml文件中:


<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">

<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/test</property>
<property name="connection.username">root</property>
<property name="connection.password">root</property>

<!-- JDBC connection pool (use the built-in) -->
<!-- <property name="connection.pool_size">1</property> -->

<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>

<!-- Enable Hibernate's automatic session context management -->
<!-- <property name="current_session_context_class">thread</property> -->

<!-- Disable the second-level cache -->
<!-- <property name="cache.provider_class">org.hibernate.cache.internal.NoCacheProvider</property> -->

<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>

<!-- Drop and re-create the database schema on startup -->
<!-- <property name="hbm2ddl.auto">update</property> -->
<mapping resource="com/xt/bean/user.hbm.xml"/>
</session-factory>
</hibernate-configuration>

请大家帮忙看看哪里出错了，总是报There is no Action mapped for namespace / and action name SaveUserAction这个错误。

[tony4geek]

你 的action 的name 是 saveUser 是不是调用的时候写成SaveUserAction

[haha_321]

应该是你请求的action和result中name不对应吧，检查一下看看是否写错，注意大小写。

[benluobo]

前台请求的url是SaveUserAction struts文件中的name没有这个，写的是saveUser 这两个需要完全对应

[晓风吹雾]

1 请确认发布成功 2 提交的地址是否正确 3 框架中的url与action或者controller的映射是否正确

[快乐的小呆]

引用

<!-- 首页action --> <action name="saveUser" class="com.xt.action.SaveUserAction" method="execute()"> <result name="success">/listUserAction.action</result> <result name="input">/saveUser.jsp</result> </action>

struts的配置文件中配的是saveUser，页面访问的时候就应该用saveUser.action而不是用SaveUserAction

[-江沐风-]

引用 3 楼 benluobobo 的回复:

前台请求的url是SaveUserAction struts文件中的name没有这个，写的是saveUser 这两个需要完全对应

是的！