SSM中 web.xml配置文件

<!--核心监听器
               当tomcat（web容器，应用服务器，web服务器）启动的时候创建spring 工厂类对象，绑定到tomcat上下文中
           -->
            <listener>
                <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
            </listener>

           <!--手动指定spring 主配置文件的位置和名称-->

           <context-param>
               <param-name>contextConfigLocation</param-name>
               <param-value>classpath:spring.xml</param-value>
           </context-param>

<!--spring的前端控制器  拦截请求 交给spring mvc 处理-->
    <servlet>
        <servlet-name>spring-mvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

        <!--指定spring mvc 主配置文件的位置和名称-->

        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring-mvc.xml</param-value>
        </init-param>

    </servlet>

    <servlet-mapping>
        <servlet-name>spring-mvc</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>

<!--配置过滤器解决post请求的中文乱码问题-->

    <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>forceRespanseEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>