web.xml文件配置示例
web.xml文件配置：
- 配置默认首页。
- 配置编码过滤器和拦截路径。
- 加载
springmvc.xml文件：配置监听器，指定文件路径。 - 配置前端控制器。
- 配置错误统一处理。
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<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
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>Vending</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<!-- 编码过滤器 -->
<filter>
<filter-name>characterEncoding</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>
<!-- 拦截所有请求 -->
<filter-mapping>
<filter-name>characterEncoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- shiro 过滤器 拦截admin下所有请求-->
<filter>
<filter-name>shiroFilter</filter-name>
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>
<filter-mapping>
<filter-name>shiroFilter</filter-name>
<url-pattern>/admin/*</url-pattern>
</filter-mapping>
<!-- 加载spring配置文件 ，配置监听器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 指定spring配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext-*.xml</param-value>
</context-param>
<!-- 自定义socket监听器 -->
<listener>
<listener-class>com.vending.socket.socketListener</listener-class>
</listener>
<!-- 定义springmvc配置文件，配置前端控制器 -->
<servlet>
<servlet-name>springDispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- 让spring mvc的前端控制器拦截所有请求 -->
<servlet-mapping>
<servlet-name>springDispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 默认servlet放行静态文件 -->
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.jpg</url-pattern>
<url-pattern>*.png</url-pattern>
<url-pattern>*.gif</url-pattern>
<url-pattern>*.css</url-pattern>
<url-pattern>*.js</url-pattern>
</servlet-mapping>
<!-- session过期时间：单位分钟：测试用1分钟 -->
<session-config>
<session-timeout>60</session-timeout>
</session-config>
<!-- 404错误统一处理 -->
<error-page>
<error-code>404</error-code>
<location>/WEB-INF/jsp/404.jsp</location>
</error-page>
</web-app>
