spring入门(八) spring mvc设置默认首页

1.web.xml配置如下

 <!DOCTYPE web-app PUBLIC
         "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
         "http://java.sun.com/dtd/web-app_2_3.dtd" >

 <web-app version="2.4"
          xmlns="http://java.sun.com/xml/ns/j2ee"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
         http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
     <display-name>www.xrelz.com</display-name>

     <!--解决中文乱码的问题-->
     <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>forceEncoding</param-name>
             <param-value>true</param-value>
         </init-param>
     </filter>
     <filter-mapping>
         <filter-name>encodingFilter</filter-name>
         <url-pattern>/*</url-pattern>
     </filter-mapping>

     <!--configure the setting of springmvcDispatcherServlet and configure the mapping-->
     <servlet>
         <servlet-name>springmvc</servlet-name>
         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
         <init-param>
             <param-name>contextConfigLocation</param-name>
             <param-value>classpath:springmvc-config.xml</param-value>
         </init-param>
         <!-- <load-on-startup>1</load-on-startup> -->
     </servlet>

     <servlet-mapping>
         <servlet-name>springmvc</servlet-name>
         <url-pattern>/</url-pattern>
     </servlet-mapping>
     <servlet-mapping>
         <servlet-name>springmvc</servlet-name>
         <url-pattern>/index</url-pattern>
     </servlet-mapping>

     <welcome-file-list>
         <welcome-file>index</welcome-file>
     </welcome-file-list>
 </web-app>

关键是41-52行

2.控制器controller

要有对应的  @RequestMapping("/index")  即可.

3.如何直接通过域名访问

如果要发布到服务器,不带项目名访问,把项目打包成ROOT.war,放到webapps下即可. ROOT里面直接是资源文件和WEB-INF(不带项目文件夹).