J2EE web.xml

1.定义头和根节点.<?xml><DOCTYPE>

2.web-app.

Icon;display-name;description ;context-param;filter ;filter-mapping;listener ;servlet ; servlet-mapping ;session-config;mime-mapping ;welcom-file-list; error-page ;taglib ;resource-env-ref ;resource-ref;security-constraint; login-config;security-role;env-entry;ejb-ref;ejb-local-ref 

<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns="http://java.sun.com/xml/ns/j2ee"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.4"

xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee    http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

<!-- 配置字符编码过滤器（解决乱码问题）

<filter>

<filter-name>encoding</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>encoding</filter-name>

<url-pattern>/*</url-pattern>

</filter-mapping>

  -->

<!-- 解决因session关闭而导致的延迟加载例外的问题 -->

<filter>

<filter-name>OpenSessionInViewFilter</filter-name>

<filter-class>

org.springframework.orm.hibernate3.support.OpenSessionInViewFilter

</filter-class>

</filter>

<filter-mapping>

<filter-name>OpenSessionInViewFilter</filter-name>

<url-pattern>/*</url-pattern>

</filter-mapping>

<!-- 指定spring的配置文件，默认从web根目录寻找配置文件，我们可以通过spring提供的classpath:前缀指定从类路径下寻找 -->

<context-param>

<param-name>contextConfigLocation</param-name>

<param-value>classpath:applicationContext.xml</param-value>

</context-param>

<!-- 对Spring容器进行实例化,并把实例存放在application的属性里 -->

<listener>

<listener-class>

org.springframework.web.context.ContextLoaderListener

</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>

<init-param>

<param-name>debug</param-name>

<param-value>3</param-value>

</init-param>

<init-param>

<param-name>detail</param-name>

<param-value>3</param-value>

</init-param>

<load-on-startup>0</load-on-startup>

</servlet>

<servlet-mapping>

<servlet-name>action</servlet-name>

<url-pattern>*.do</url-pattern>

</servlet-mapping>

<welcome-file-list>

<welcome-file>Login.html</welcome-file>

</welcome-file-list>

</web-app>