过滤器与拦截器的区别：
过滤器在 url-pattern 中配置了 @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { System.out.println("执行前......testInterceptor...."); return true; } @Override public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception { System.out.println("执行后......testInterceptor...."); } @Override public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception { System.out.println("success.jsp执行后..."); } }
2：在springmvc.xml中配置自定义拦截器
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