您可以考虑合并 afterCompletion 内部的逻辑，即使在处理程序方法引发异常的情况下也将 调用
该逻辑。一个很好的在线例子
public class RequestProcessingTimeInterceptor extends HandlerInterceptorAdapter { private static final Logger logger = LoggerFactory .getLogger(RequestProcessingTimeInterceptor.class); @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { long startTime = System.currentTimeMillis(); logger.info("Request URL::" + request.getRequestURL().toString() + ":: Start Time=" + System.currentTimeMillis()); request.setAttribute("startTime", startTime); //if returned false, we need to make sure 'response' is sent return true; } @Override public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception { System.out.println("Request URL::" + request.getRequestURL().toString() + " Sent to Handler :: Current Time=" + System.currentTimeMillis()); //we can add attributes in the modelAndView and use that in the view page } @Override public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception { long startTime = (Long) request.getAttribute("startTime"); logger.info("Request URL::" + request.getRequestURL().toString() + ":: End Time=" + System.currentTimeMillis()); logger.info("Request URL::" + request.getRequestURL().toString() + ":: Time Taken=" + (System.currentTimeMillis() - startTime)); } }
