SpringMVC 学习 八 SSM环境搭建(一) web.xml配置
第一步:导入jar包
注意包的兼容性,以后采用maven会好很多
第二步:配置web.xml
在web.xml中,主要的配置内容有以下几点
(1)spring容器配置文件的位置
<!-- spring配置文件位置 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param>
(2)配置监听器,在项目一启动就创建spring的容器,这个监听器实现了ServletContextListener接口
<!-- 配置监听器,在项目一启动就创建spring的容器 这个监听器实现了ServletContextListener接口 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener>
(3)springMVC的前端控制器 DispatcherServlet
<!-- springMVC的前端控制器 DispatcherServlet--> <servlet> <servlet-name>springMVC</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet </servlet-class> <!-- 修改springMVC配置文件的路径和名称 --> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc.xml</param-value> </init-param> <!-- 配置DispatcherServlet自启动 --> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springMVC</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping>
(4)设置请求的过滤器
<!-- 设置请求的过滤器 --> <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>
最后完成的web.xml
<?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" id="WebApp_ID" version="3.1"> <display-name>SSM</display-name> <!-- spring配置文件位置 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> <!-- 配置监听器,在项目一启动就创建spring的容器 这个监听器实现了ServletContextListener接口 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- springMVC的前端控制器 DispatcherServlet--> <servlet> <servlet-name>springMVC</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet </servlet-class> <!-- 修改springMVC配置文件的路径和名称 --> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc.xml</param-value> </init-param> <!-- 配置DispatcherServlet自启动 --> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springMVC</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- 设置请求的过滤器 --> <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> </web-app>