springmvc入門重點

**1.導入springmvc的jar包；
2.導入web.xml文件；**

<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>*.action</url-pattern>
  </servlet-mapping>

3.導入springmvc.xml文件；

<bean   class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"></bean>
<bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"></bean>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"></bean>
<bean name="/showDept.action" class="controller.DeptController"></bean>

4.寫controller代替action，繼承controller；

public ModelAndView handleRequest(HttpServletRequest request,
        HttpServletResponse response) throws Exception {
        Dept d=new Dept();
        d.setDeptno(1);
        d.setDname("kaifabu");
        d.setLoc("zhengzhou");
        ModelAndView mav=new ModelAndView();
        mav.setViewName("index.jsp");
        mav.addObject("dept",d);
        return mav;
}

5.寫實體類；重點內容