/**
* 拦截器，实现HandlerInterceptor接口
* 只拦截控制器，不拦截jsp
* @author Administrator
*
*/
public class MyHeaderInterceptor
implements HandlerInterceptor{
//preHandle在Controller之前执行
@Override
public boolean preHandle(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2)
throws Exception {
System.out.println("Interceptor:preHandle"
);
return true;
}
//postHandle在控制器之后，jsp之前执行
@Override
public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2, ModelAndView arg3)
throws Exception {
System.out.println("Interceptor:postHandle"
);
}
//afterCompletion最后一定会执行，
@Override
public void afterCompletion(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2, Exception arg3)
throws Exception {
System.out.println("Interceptor:afterCompletion"
);
}
}
SpringMVC.xml
<!-- 拦截所有控制器 -->
<mvc:interceptors>
<bean id="interceptor" class="com.ment.filter.MyHeaderInterceptor"></bean>
</mvc:interceptors>
<!-- 只拦截mian控制器，可以配置多个mvc:mapping -->
<mvc:interceptors>
<mvc:interceptor>
<mvc:mapping path="/main"/>
<bean id="interceptor" class="com.ment.filter.MyHeaderInterceptor"></bean>
</mvc:interceptor>
</mvc:interceptors>
转载于:https://www.cnblogs.com/lastingjava/p/10029716.html
