如果在 sprig 启动项目中添加了 @EnableTransactionManagement，则 @Aspectj 日志记录会出现问题

如何解决如果在 sprig 启动项目中添加了 @EnableTransactionManagement，则 @Aspectj 日志记录会出现问题

我尝试使用 @Aspect 来记录所有请求和响应，代码运行良好且成功，具有通用配置且没有任何初始化的简单 spring boot 项目方法或数据库调用。

以下代码不起作用，其中包括对使用的所需数据的初始化配置和数据库调用 @EnableTransactionManagement 在运行我的应用程序时使用 @Aspect 时出现错误

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationListener;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.event.ContextRefreshedEvent;
import org.springframework.transaction.annotation.EnableTransactionManagement;

@Configuration
@EnableTransactionManagement
public class MyContextClass implements ApplicationListener<ContextRefreshedEvent>{

@Autowire
private MyServiceRepository myServiceRepo;
    @Override
    public void onApplicationEvent(ContextRefreshedEvent event) {
          // Added Db call
          CommonUtils.setYears(myServiceRepo.getTotalYears());
    }
}

@Aspect 日志代码

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.springframework.util.StopWatch;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.*;

@Aspect
@Component
public class LoggingAspect {
private final Logger log = LoggerFactory.getLogger(this.getClass());
    @Autowired
    private HttpServletRequest request;
    @Autowired
    private HttpServletResponse response;


@pointcut("within(@org.springframework.stereotype.Repository *)"
            + " || within(@org.springframework.stereotype.Service *)"
            + " || within(@org.springframework.web.bind.annotation.RestController *)")
    public void springBeanpointcut() {
        // Method is empty as this is just a pointcut,the implementations are in the
        // advices.
        log.info("springBeanpointcut");
    }

 /**
     * pointcut that matches all Spring beans in the application's main packages.
     */
    @pointcut("within(com.test.mypackage..*)")
    public void applicationPackagepointcut() {
        // Method is empty as this is just a pointcut,the implementations are in the
        // advices.
        log.info("applicationPackagepointcut");
    }

 @Around("applicationPackagepointcut() && springBeanpointcut()")
    public Object logAround(ProceedingJoinPoint joinPoint) throws Throwable {
        MethodSignature methodSignature = (MethodSignature) joinPoint.getSignature();
        String className = methodSignature.getDeclaringType().getSimpleName();
        String methodName = methodSignature.getName();
        String methodParameterNames = methodSignature.getmethod().toString();
        if (request ! = null) {
            log.info(request.getRequestURL());
            log.info(request.getmethod());
        }
       if (response != null) {
            log.info(response.getRequestURL());
            log.info(response.getStatus());
        }
       final StopWatch stopWatch = new StopWatch();
       stopWatch.start();
       Object result = joinPoint.proceed();
       stopWatch.stop();
}

此代码构建成功。但是当我运行下面的应用程序时，错误显示 setYears

中的错误

2021-05-07 20:14:58 [restartedMain] ERROR o.s.boot.SpringApplication-[SpringApplication.java:856]-Application run Failed
java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request,or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message,your code is probably running outside of dispatcherServlet: In this case,use RequestContextListener or RequestContextFilter to expose the current request.
    at org.springframework.web.context.request.RequestContextHolder.currentRequestAttributes(RequestContextHolder.java:131)
    at org.springframework.web.context.support.WebApplicationContextUtils.currentRequestAttributes(WebApplicationContextUtils.java:313)
    at org.springframework.web.context.support.WebApplicationContextUtils.access$400(WebApplicationContextUtils.java:66)
    at org.springframework.web.context.support.WebApplicationContextUtils$RequestObjectFactory.getobject(WebApplicationContextUtils.java:329)
    at org.springframework.web.context.support.WebApplicationContextUtils$RequestObjectFactory.getobject(WebApplicationContextUtils.java:324)
    at org.springframework.beans.factory.support.AutowireUtils$ObjectFactoryDelegatingInvocationHandler.invoke(AutowireUtils.java:292)
    at com.sun.proxy.$Proxy120.getRequestURL(UnkNown Source)
    at com.opl.ans.config.utils.LoggingAspect.logAround(LoggingAspect.java:137)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:634)
    at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:624)
    at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:72)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.cglibAopProxy$cglibMethodInvocation.proceed(cglibAopProxy.java:749)
    at org.springframework.aop.framework.cglibAopProxy$DynamicAdvisedInterceptor.intercept(cglibAopProxy.java:691)

这是正确的做法吗？有什么建议吗？请帮忙。

解决方法

根据错误堆栈，问题是 request 实例无效。我猜想自动连接到 request 的 Aspect 实例可能已经过时，或者不与当前线程相关联。这意味着 request 实例不为空，并且 logAround() 方法中的检查给出了意想不到的结果。

如果当前没有请求属性绑定到线程，

RequestContextHolder.getRequestAttributes() 将返回 null。修改

if (request ! = null) { ..} 与 if (RequestContextHolder.getRequestAttributes() ! = null) {..} 核对应该可以解决问题。

此外，spring boot 还为您当前通过 AOP 尝试的内容提供了开箱即用的解决方案。也请检查一下。

• HTTP Tracing
• Spring MVC Metrics