java - spring aop执行返回类型

Question

我通过 AspectJ 拦截方法。我需要在切入点表达式 execution(* *.*(..)) 添加返回类型 TestObj。我怎样才能做到这一点？

@Around("@annotation(interceptor) && execution(* *.*(..)) && args(argType, ..)")
public Object logAction(ProceedingJoinPoint joinPoint, Interceptor interceptor, TestObj argType) throws Throwable {
    // do smth
}

Answer 1

execution() 表达式支持返回类型过滤。如果您需要返回类型为 TestObj 或其任何子类型，则以下内容应该有效:

@Around("@annotation(interceptor) && execution(* TestObj *.*(..)) && args(argType, ..)")
public Object logAction(ProceedingJoinPoint joinPoint, Interceptor interceptor, TestObj argType) throws Throwable {

您可以找到更多in the official docs, Chapter 2. Annotations :

execution(public (@Immutable *) org.xyz..*.*(..))

The execution of any public method in a package with prefix org.xyz, where the method returns an immutable result.