SpringMVC及拦截器基本配置
导包就不记了。
web.xml:

<!-- Spring MVC 核心控制器 通过此DispatcherServlet分发到各逻辑单元--><servlet><servlet-name>coreAction</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><load-on-startup>1</load-on-startup></servlet><!-- <init-param>节点中配置了名为“contextConfigLocation”的Servlet参数，此参数指定了Spring配置文件的位置“/WEB-INF/Config.xml”。如果忽略此设定，则默认为“/WEB-INF/<servlet name>-servlet.xml”，其中<servlet name>以Servlet 名替换（在当前环境下，默认值也就是/WEB-INF/Dispatcher-servlet.xml）<init-param><param-name>contextConfigLocation</param-name><param-value>/WEB-INF/Config.xml</param-value></init-param>--><filter><filter-name>encodingFilter</filter-name><filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class><init-param><param-name>encoding</param-name><param-value>UTF-8</param-value></init-param><param-name>forceEncoding</param-name><param-value>true</param-value></filter><servlet-mapping><servlet-name>coreAction</servlet-name><url-pattern>*.kara</url-pattern><url-pattern>*.do</url-pattern></servlet-mapping>

接着是spring配置，由于是没在web.xml手动配置指定哪个spring配置文件，所以指向的是配置文件名是:coreAction-servlet.xml。

<!-- 视图 --><bean id="viewResolver" name="code">package com.biz;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.springframework.web.servlet.ModelAndView;import org.springframework.web.servlet.mvc.Controller;/** * @author Administrator * 实现单个方法的controller */public class LoginAction implements Controller  {public ModelAndView handleRequest(HttpServletRequest request,HttpServletResponse response) throws Exception {request.setAttribute("kara", "Hello!Kara!");return new ModelAndView("hello");} }

贴上拦截器：

package com.intercept;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.springframework.web.servlet.ModelAndView;import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;public class MyInterceptor  extends HandlerInterceptorAdapter{public void afterCompletion(HttpServletRequest arg0,HttpServletResponse arg1, Object arg2, Exception arg3)throws Exception {// TODO Auto-generated method stubSystem.out.println("回调执行");}public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1,Object arg2, ModelAndView arg3) throws Exception {// TODO Auto-generated method stubSystem.out.println("调用controller后进入");}public boolean preHandle(HttpServletRequest arg0, HttpServletResponse arg1,Object arg2) throws Exception {System.out.println("拦截开始：");System.out.println("***");System.out.println("&&&:"+arg2.getClass().getCanonicalName());System.out.println(arg2.getClass().getSimpleName());return false;}}