STS中web.xml配置文件

 <!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>
   <context-param>
       <param-name>contextConfigLocation</param-name>
       <param-value>classpath:applicationContext.xml</param-value>
   </context-param>
   <!-- 设置字符编码，将所有的字符编码同意设置为utf- -->
     <filter>
         <filter-name>filterEncoding</filter-name>
         <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
         <init-param>
             <param-name>encoding</param-name>
             <param-value>UTF-</param-value>
         </init-param>
         <init-param>
             <param-name>forceEncoding</param-name>
             <param-value>true</param-value>
         </init-param>
     </filter>
     <filter-mapping>
         <filter-name>filterEncoding</filter-name>
         <url-pattern>/*</url-pattern>
     </filter-mapping>
   <listener>
   <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
   </listener>
   <!-- 配置requestcontext监听器 -->
   <listener>
       <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
   </listener>
   <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.xml</param-value>
       </init-param>
   </servlet>
   <servlet-mapping>
       <servlet-name>springmvc</servlet-name>
       <url-pattern>*.do</url-pattern>
   </servlet-mapping>
 </web-app>