web.xml文件配置

<?xml version="1.0" encoding="UTF-8"?>
<!--文件头-->
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
    "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<!--加载顺序：context-param -> listener -> filter -> servlet -->
<display-name>MingAn application</display-name>
    <!--系统项目路径，避免部署时冲突-->
    <context-param>
        <param-name>webAppRootKey</param-name>
        <param-value>application.root</param-value>
    </context-param>
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>*-service.xml,*-dao.xml,application.xml</param-value>//dao、service等bean的注入
    </context-param>
    <!--配置文件见博客《log4j.xml》-->
    <context-param>
        <param-name>log4jConfigLocation</param-name>
        <param-value>/WEB-INF/log4j.xml</param-value>
    </context-param>
    <!--系统定时刷新log4j.xml时间间隔设置,单位ms-->
    <context-param>
        <param-name>log4jRefreshInterval</param-name>
        <param-value>60000</param-value>
    </context-param>
    
    <!--filter配置，按filtermapping的顺序执行-->
    <!--源码解析见《Spring的字符集过滤器CharacterEncodingFilter》-->
    <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>
        <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>*.do</url-pattern>
    </filter-mapping>
    <!--委派过滤器:将Filter作为spring的bean,由spring来管理-->
    <filter>
        <filter-name>testFilter</filter-name>
        <filter-class>org.acegisecurity.util.FilterToBeanProxy</filter-class>
        <init-param>
            <param-name>targetClass</param-name>
            <param-value>org.acegisecurity.util.FilterChainProxy</param-value>
        </init-param>
    </filter>
    <filter>
        <filter-name>SingleSignOutFilter</filter-name>
        <filter-class>org.jasig.cas.client.session.SingleSignOutFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>SingleSignOutFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>    
    <filter-mapping>
        <filter-name>testFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <filter>
        <filter-name>OpenSessionInViewFilter</filter-name>
        <filter-class>
          org.springframework.orm.hibernate3.support.OpenSessionInViewFilter
        </filter-class>
        <init-param>
            <param-name>sessionFactoryBeanName</param-name>
            <param-value>sessionFactory</param-value>
        </init-param>
        <init-param>
                <param-name>singleSession</param-name>
                <param-value>true</param-value>           
        </init-param>
        <init-param>
                <param-name> flushMode </param-name>
                <param-value>AUTO </param-value>        
        </init-param>
    </filter>
    <listener>
        <listener-class>org.acegisecurity.ui.session.HttpSessionEventPublisher</listener-class>
    </listener>
    <listener>
        <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
    </listener>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <listener>
        <listener-class>org.jasig.cas.client.session.SingleSignOutHttpSessionListener</listener-class>
    </listener>
    <listener> 
        <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class> 
    </listener>
    
    <servlet>
        <servlet-name>action</servlet-name>
        <servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
        <init-param>
            <param-name>config</param-name>
            <param-value>/WEB-INF/struts-config.xml</param-value>
           </init-param>
        <load-on-startup>1</load-on-startup>
    <servlet>
    <servlet-mapping>
        <servlet-name>action</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>
</web-app>

备注：内容为个人总结，仅供参考。。。