如何记录Spring Data JPA存储库方法的执行时间？

我有简单的Spring Data JPA存储库。

public interface UserRepository extends JpaRepository{ … } 

有没有办法监视Spring生成的方法的执行时间（例如findOne(…) ）？

Answer 1

最简单的方法是使用CustomizableTraceInterceptor ，如下所示：

 @Configuration @EnableAspectJAutoProxy public class SpringDataExecutionLoggingConfiguration { @Bean public CustomizableTraceInterceptor customizableTraceInterceptor() { CustomizableTraceInterceptor customizableTraceInterceptor = new CustomizableTraceInterceptor(); customizableTraceInterceptor.setUseDynamicLogger(true); customizableTraceInterceptor.setExitMessage("Executed $[methodName] in $[invocationTime]"); return customizableTraceInterceptor; } @Bean public Advisor advisor() { AspectJExpressionPointcut pointcut = new AspectJExpressionPointcut(); pointcut.setExpression("execution(public * org.springframework.data.jpa.repository.CrudRepository+.*(..))"); return new DefaultPointcutAdvisor(pointcut, customizableTraceInterceptor()); } } 

Answer 2

另一个工作方案：

 @Aspect @Component public class ProfilerAspect { Logger logger = LoggerFactory.getLogger(this.getClass()); @Pointcut("execution(public * org.springframework.data.repository.Repository+.*(..))") public void monitor() {} @Around("monitor()") public Object profile(ProceedingJoinPoint pjp) { long start = System.currentTimeMillis(); logger.debug("JVM memory in use = "+ (Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory())); Object output = null; try { output = pjp.proceed(); } catch (Throwable e) { logger.error(e.getMessage(), e); } long elapsedTime = System.currentTimeMillis() - start; logger.debug(pjp.getTarget()+"."+pjp.getSignature()+": Execution time: " + elapsedTime + " ms. ("+ elapsedTime/60000 + " minutes)"); return output; } }