java.lang.IllegalStateException:找不到线程绑定请求,方面是异常


问题内容

以下是我的观点:

    @Configurable
    @Aspect
    public class TimingAspect {

        @Autowired
        private HttpServletRequest httpServletRequest;

        // Generic performance logger for any mothod
        private Object logPerfomanceInfo(ProceedingJoinPoint joinPoint, String remoteAddress) {
            StringBuilder tag = new StringBuilder();
            if (joinPoint.getTarget() != null) {
                tag.append(joinPoint.getTarget().getClass().getName());
                tag.append(".");
            }
            tag.append(joinPoint.getSignature().getName());
            StopWatch stopWatch = new StopWatch(tag.toString());
            Object result = joinPoint.proceed(); // continue on the intercepted method
            stopWatch.stop();

            PerformanceUtils.logInPerf4jFormat(stopWatch.getStartTime(), stopWatch.getElapsedTime(), stopWatch.getTag(), stopWatch.getMessage(), remoteAddress);
            return result;
        }

        @Around("execution(* $$$.$$$.$$$.api.controller.*.*(..))")
        public Object logAroundApis(ProceedingJoinPoint joinPoint) throws Throwable {
            String remoteAddress = null;
            if (httpServletRequest != null) {
               remoteAddress = httpServletRequest.getRemoteAddr();
            }
            return logPerfomanceInfo(joinPoint, remoteAddress);
        }

        @Around("execution(* $$$.$$$.$$$.$$$.$$$.$$$.*(..))")
        public Object logAroundService(ProceedingJoinPoint joinPoint) throws Throwable {
            String remoteAddress = null;
            if (httpServletRequest != null) {
                remoteAddress = httpServletRequest.getRemoteAddr();
            }
            return logPerfomanceInfo(joinPoint, remoteAddress);
        }

我没有收到任何编译时错误,但是在启动码头服务器时出现以下异常:

嵌套异常为java.lang.IllegalStateException:未找到线程绑定的请求:您是在实际Web请求之外引用请求属性,还是在原始接收线程之外处理请求?如果您实际上是在Web请求中操作并且仍然收到此消息,则您的代码可能在DispatcherServlet
/
DispatcherPortlet之外运行:在这种情况下,请使用RequestContextListener或RequestContextFilter公开当前请求。

这里要注意的一件事是,如果删除“ logAroundService”方法,则不会获得任何异常。


问题答案:

您不应该HttpServletRequest在方面方面自动进行a布线,因为这会将您的方面与只能在执行中调用的类一起运行HttpServletRequest

而是RequestContextHolder在需要时使用来获取请求。

private String getRemoteAddress() {
    RequestAttributes attribs = RequestContextHolder.getRequestAttributes();
    if (attribs instanceof NativeWebRequest) {
        HttpServletRequest request = (HttpServletRequest) ((NativeWebRequest) attribs).getNativeRequest();
        return request.getRemoteAddr();
    }
    return null;
}