Spring MVC web.xml文件分析说明
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1"> <!-- //1.提供GUI工具可能会用来标记这个特定的Web应用的一个名称 --> <display-name>CESmart</display-name> <!-- //1.用来声明应用范围(整个WEB项目)内的上下文初始化参数。 --> <!-- //2.param-name,为key --> <!-- //3.param-value,为value --> <context-param> <param-name>WebApp</param-name> <param-value>com.proserver</param-value> </context-param> <context-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/configs/spring/applicationContext*.xml</param-value> </context-param> <!-- //1.初始化spring环境,用到context-param中的 contextConfigLocation --> <!-- //2.web容器使用ContextLoaderListener这个实例来完成SpringMVC的初始化工作,就是建立工作环境(上下文) --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- //1.容器(Tomcat)的Context指定的servlet --> <!-- //2.servlet的初始化和DispatcherServlet建立相关的映射关系 --> <servlet> <servlet-name>SpringMVC</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <!-- //1.DispatcherServlet运行时用到的参数, --> <!-- //2.DispatcherServlet要扫描那些名找controler,并建立映射表关系 --> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/configs/spring/mvc-demo-servlet.xml,/WEB-INF/configs/spring/applicationContext*.xml </param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <!-- //1.容器(Tomcat)的Context指定的servlet的URL --> <!-- //2.url-pattern 定义匹配映射过滤 (可以有多个) --> <!-- //(1).以“/”开头,并以"/*"结尾的字符串用于路径的映射。如“/xing/*” --> <!-- //(2).以"*."开头,用于做扩展的映射。(扩展名匹配) --> <!-- //(3).一个仅包含"/"的字符串,将当前这个servlet明确为应用的默认servlet。如“/xing/*” --> <!-- //(4).其他都是精确匹配。如“/TestConnect” --> <servlet-mapping> <servlet-name>SpringMVC</servlet-name> <!-- <url-pattern>/</url-pattern> --> <url-pattern>/xing/*</url-pattern> </servlet-mapping> <listener> <description>HttpSessionListener监听器</description> <listener-class>com.proserver.common.controller.Test.Listener.MyServletContextListener</listener-class> </listener> <!-- //1.过滤器配置 --> <filter> <filter-name>filterTest3</filter-name> <filter-class>com.proserver.common.controller.Test.filter.FilterTest3</filter-class> <init-param> <param-name>userName</param-name> <param-value>HelloWorld</param-value> </init-param> </filter> <!-- //1.过滤器规则配置 --> <filter-mapping> <filter-name>filterTest3</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>