springMVC 拦截器 HandlerInterceptor 用法

一、HandlerInterceptor 用法

第一步：注册拦截器

<!-- 注册拦截器 -->
	<mvc:interceptors>
		<bean class="com.project.base.interceptor.ControlInterceptor" />
	</mvc:interceptors>

第二步：继承HandlerInterceptor ，实现拦截器

public class ControlInterceptor implements HandlerInterceptor{
	private static Logger logger = Logger.getLogger(ControlInterceptor.class);

	/**
	 * 执行完控制器后调用，即离开时
	 */
	@Override
	public void afterCompletion(HttpServletRequest request,
			HttpServletResponse response, Object arg2, Exception arg3)
					throws Exception {

		logger.info("className--->" + arg2);
		logger.info("request--->" + 		request);
}}