HandlerInterceptor
我们提供的服务有：做网站、成都网站建设、微信公众号开发、网站优化、网站认证、茫崖ssl等。为上千企事业单位解决了网站和推广的问题。提供周到的售前咨询和贴心的售后服务，是有科学管理、有技术的茫崖网站制作公司
public class HandlerInterceptorDemo implements HandlerInterceptor {
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
return false;
}
@Override
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
}
@Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
}
}WebRequestInterceptor
public class WebRequestInterceptorDemo implements WebRequestInterceptor {
@Override
public void preHandle(WebRequest webRequest) throws Exception {
}
@Override
public void postHandle(WebRequest webRequest, ModelMap modelMap) throws Exception {
}
@Override
public void afterCompletion(WebRequest webRequest, Exception e) throws Exception {
}
}说明：interceptor是在请求在适配之后，对具体的handler方法前后的业务处理。
interceptor并不会拦截到所有request，它只有在handlerMapping找到对应的映射之后才会起作用。
