springMVC小结_1


1.web.xml中配置Spring的servlet和servlet-mapping
   <servlet>
        <servlet-name>example</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param> 
            <param-name>contextConfigLocation</param-name> 
            <param-value>/WEB-INF/application-servlet.xml</param-value> 
        </init-param> 
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>example</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>
2.配置spring配置文件application-servlet.xml
   <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
     <property name="prefix">
         <value>/page/</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="/login.do">loginAction</prop>
            </props>
        </property>
   </bean>
   <bean id="loginAction" class="loginAction">
        <property name="commandClass">
            <value> LoginActionVo  </value>
        </property>
        <property name="formView">
            <value>login</value>
        </property>
        <property name="sessionForm">
            <value>true</value>
        </property>
        <property name="serviceLocator">
            <ref bean="servicelocator" />
        </property>
 </bean>
3.新建類繼承SimpleFormController﹐並複寫protected Object formBackingObject(HttpServletRequest request) 和 protected ModelAndView onSubmit(HttpServletRequest request, HttpServletResponse response,
 Object cmd, BindException ex)。常用結構為
   protected Object formBackingObject(HttpServletRequest request){
      LoginActionVo  loginActionVo   = new LoginActionVo ();
      request.setAttribute(" loginActionVo", loginActionVo);
      return loginActionVo;
   }
   protected ModelAndView onSubmit(HttpServletRequest request, HttpServletResponse response,
       Object cmd, BindException ex){
      LoginActionVo  loginActionVo =(LoginActionVo)cmd;
      Map map = new HashMap();
     map.put(" loginActionVo", loginActionVo);
     request.getSession().setAttribute(this.getFormSessionAttributeName(), loginActionVo);
     return new ModelAndView("login",map);
  }

4.將jsp頁面參數和VO進行綁定。綁定的方法為頁面元素name和VO對象對應﹐當進行深層次的綁定時﹐要注意﹐在變量的get方法中進行初始化。在servlet2.4容器中可以不用c:out標籤
輸入框綁定﹕<input name="user.name"  value = "<c:out value="${loginActionVo.user.name}"/>" type="text" disabled="disabled"  size="14" maxlength="14" /></td>
VO為﹕
 public class loginActionVo{
    private User user;
    public User getUser(User user){
      if( user == null){
         user = new User();
      }
      return user;
   }
 }

   

posted on 2006-10-09 15:14 software5168 阅读(706) 评论(0)  编辑  收藏


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