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;
???}
?}
???