springmvc 自定义的拦截器

最新推荐文章于 2019-10-24 16:13:16 发布

原创最新推荐文章于 2019-10-24 16:13:16 发布 · 218 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#springmvc拦截器

springmvc 专栏收录该内容

9 篇文章

订阅专栏

本文介绍了一个具体的Spring MVC拦截器实现案例，展示了如何通过实现HandlerInterceptor接口来创建自定义的登录验证拦截器，并配置其在所有请求路径上生效。

拦截器定义

//实现HandlerInterceptor
public class LoginAuthentication implements HandlerInterceptor {
	
	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
			throws Exception {
		// TODO Auto-generated method stub
		System.out.println("handle执行前");
		return true;
	}
	
	@Override
	public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
			ModelAndView modelAndView) throws Exception {
		// TODO Auto-generated method stub
		System.out.println("handle方法中");
	}
	
	@Override
	public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)
			throws Exception {
		// TODO Auto-generated method stub
		System.out.println("handle执行后");
	}
}

拦截器配置

    <mvc:interceptors>
    	<mvc:interceptor>
    		<mvc:mapping path="/**"/>
    		<bean class="com.samrtian.interceptor.LoginAuthentication"/>
    	</mvc:interceptor>
    </mvc:interceptors>