java如何在方法声明中使用@Abround spring aop注释？

Question

如何在方法声明中使用@around spring AOP注释？实际上，java类中有很多重复代码，所以我正在考虑对其进行优化。只有@around执行值每次都会更改，3-4个方法的方法定义是相同的。你能建议我在这种情况下可以做些什么来优化代码吗？在给定的示例中，您可以看到nicdStatus和nicdPortStatus只发生了更改，其余所有的方法定义都是相同的。 请提供一些代码优化建议，因为我的java类中有重复的代码

@Around("execution(* dcp.casa.services.nicd.NicdController.**nicdStatus**(..)) && args(*, relationId,..)")
Object handleRunTest(final ProceedingJoinPoint joinPoint, final String relationId) {
    log.info("xyz");
    callAbc();
    return joinPoint.proceed();
}

@Around("execution(* dcp.casa.services.nicd.NicdController.nicdPortStatus(..)) && args(*, relationId,..)")
Object handleRunTest(final ProceedingJoinPoint joinPoint, final String relationId) {
    log.info("xyz");
    callAbc();
    return joinPoint.proceed();
}

Answer 1

Your question is a bit unclear. Am I guessing right that you have multiple @Around advice methods with identical method bodies and you want to factor out those method bodies into a helper method in order to avoid code duplication within your aspect(s)?

是的，你是对的@kriegaex。你理解我的问题

那么，答案很简单：就像重构任何其他Java类一样重构：

package de.scrum_master.aspect;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

@Aspect
public class LoggingAspect {
  private static final Logger log = LoggerFactory.getLogger(LoggingAspect.class);

  private void callAbc() {}

  @Around("execution(* dcp.casa.services.nicd.NicdController.**nicdStatus**(..)) && args(*, relationId, ..)")
  public Object handleRunTestA(ProceedingJoinPoint joinPoint, String relationId) throws Throwable {
    return handleRunHelper(joinPoint);
  }

  @Around("execution(* dcp.casa.services.nicd.NicdController.nicdPortStatus(..)) && args(*, relationId, ..)")
  public Object handleRunTestB(ProceedingJoinPoint joinPoint, String relationId) throws Throwable {
    return handleRunHelper(joinPoint);
  }

  private Object handleRunHelper(ProceedingJoinPoint joinPoint) throws Throwable {
    log.info("xyz");
    callAbc();
    return joinPoint.proceed();
  }
}

如果helper方法也需要访问String relationId，只需向其添加另一个参数并相应地调用它