关于websphere的自动转到默认首页

我的这个项目是S2SH开发,开发用的是tomcat6.0,但是部署到websphere6.1上,不会自动跳到login.jsp上,每次都要输首页名称,否则出505错误,而tomcat是正常的,不知道是不是web.xml的问题,我的web.xml如下:


<?xml version="1.0" encoding="UTF-8"?>
<web-app id=
"WebApp_ID" 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">
<display-name>IDRIVER</display-name>
<welcome-file-list>
<welcome-file>login.jsp</welcome-file>
</welcome-file-list>

<!-- 配置Log4j -->
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>classpath:config/log4j.properties</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
</listener>

<!-- 配置spring2.5 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:config
/*.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<!-- Spring 刷新Introspector防止内存泄露 -->
<listener>
<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
</listener>

<!-- 配置编码 -->
<filter>
<filter-name>characterEncodingFilter</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>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

<!-- 配置OpenSessionInViewFilter来处理延迟加载的问题 -->
<filter>
<filter-name>HibernateSpringFilter</filter-name>
<filter-class>
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>HibernateSpringFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

<filter>
<filter-name>struts2-cleanup</filter-name>
<filter-class>org.apache.struts2.dispatcher.ActionContextCleanUp</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2-cleanup</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

<!-- 配置sitemesh -->
<filter>
<filter-name>sitemesh</filter-name>
<filter-class>com.opensymphony.module.sitemesh.filter.PageFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>sitemesh</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

<!-- 配置struts2 -->
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>*.action</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>*.jsp</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>*.htm</url-pattern>
</filter-mapping>

<!-- 配置FCKEditor -->
<servlet>
<servlet-name>Connector</servlet-name>
<servlet-class>com.wzc.pub.utils.fckeditor.ConnectorServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Connector</servlet-name>
<url-pattern>/fckeditor/editor/filemanager/connectors/*</url-pattern>
</servlet-mapping>

<!-- session超时定义,单位为分钟 -->
<session-config>
<session-timeout>30</session-timeout>
</session-config>

</web-app>