springMVC interceptor
发表于：2024-11-25 作者：热门IT资讯网编辑
编辑最后更新 2024年11月25日，HandlerInterceptorpublic class HandlerInterceptorDemo implements HandlerInterceptor { @Override
HandlerInterceptor
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。