关于Spring MVC中action竟然没被调用。大家看看 源代码在此

问题就是在点击了main页面中的按钮后能够调到rlt这个页面，但是WelComeAction根本就没运行，System.out.println("%%%%%%%%%%%%%%%%%%%");这就都没运行还有就是通过request.getParameter("prama1")我能获得页面中id为prama1这个文本框中的内容吗？？<?xml version="1.0" encoding="UTF-8"?>
<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">
<servlet>
<servlet-name>springmail</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<init-param>   
        <param-name>contextConfigLocation</param-name>   
        <param-value>/WEB-INF/springmail-servlet.xml</param-value>   
    </init-param>  
<load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
<servlet-name>springmail</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>/WEB-INF/jsp/main.jsp</welcome-file>
</welcome-file-list><?xml version="1.0" encoding="UTF-8"?>    
<!DOCTYPE beans PUBLIC  "-//SPRING//DTD BEAN//EN"    
 "http://www.springframework.org/dtd/spring-beans.dtd">     
<beans>    
    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">   
        <property name="viewClass">   
            <value>org.springframework.web.servlet.view.JstlView</value>   
        </property>   
        <property name="prefix">   
            <value>/WEB-INF/jsp/</value>   
        </property> 
        <property name="suffix">   
            <value>.jsp</value>   
        </property>   
    </bean>         
    <bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">   
        <property name="mappings">                 
            <props>    
                <prop key="main.do">welcome</prop>    
            </props>    
        </property>    
    </bean>        
    <bean id="welcome" class= "com.action.WelComeAction">   
        <property name="commandClass">                
            <value>com.po.mailservice</value>    
        </property>   
        <property name="formView" value="main" />   
        <property name="successView" value="rlt" />
    </bean>   
</beans>  package com.action;import java.util.HashMap;   
import javax.servlet.http.HttpServletRequest;   
import javax.servlet.http.HttpServletResponse;   import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.validation.BindException;   
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;   
import org.springframework.web.servlet.mvc.SimpleFormController; public class WelComeAction extends SimpleFormController{
 protected ModelAndView onSubmit(HttpServletRequest request,   
            HttpServletResponse response){
  System.out.println("%%%%%%%%%%%%%%%%%%%");
  String pra1 = request.getParameter("prama1");
  String pra2 = request.getParameter("prama2");
  System.out.println("!!!!!!!!!!!!!!!!!!!!!!:"+pra1+"@@@@@:"+pra2);
  HashMap tojsp = new HashMap();
  tojsp.put("pra1", request.getParameter("prama1"));
  tojsp.put("pra2", request.getParameter("prama2"));
  tojsp.put("pra3", "dfe");
  tojsp.put("pra4","hgds");
  return new ModelAndView(this.getSuccessView(),"tojsp",tojsp);
 }
}<%@ page language="java" pageEncoding="GB2312" contentType="text/html; charset=GB2312"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  
  <body>
  <form action="./main.do" method="post">
参数1：<input id="prama1" type="text" value="s"><br>
参数2：<input id="prama2" type="text" value="dfz"><br>
    <input type="submit">
   </form>
  </body>
</html>