JoinPoint 获取方法注解

JoinPoint 获取方法注解

方法名	功能
Signature getSignature();	获取封装了部署信息的对象，在该对象中可以获取到目标方法名，所属类的Class等信息
Object[] getArgs();	获取传入目标方法的参数对象
Object getTarget();	获取被代理的对象
Object getThis();	获取代理对象

// 第一种
try {
    Class<?> clazz = joinPoint.getTarget().getClass();
    String methodName = joinPoint.getSignature().getName();
    Class<?>[] parameterTypes = ((MethodSignature) joinPoint.getSignature()).getMethod().getParameterTypes();
    Method method = clazz.getMethod(methodName, parameterTypes);
    PostMapping postMapping = method.getAnnotation(PostMapping.class);
    String[] paths = postMapping.value();
} catch (NoSuchMethodException e) {
    e.printStackTrace();
}

// 第二种
String[] paths = ((MethodSignature) joinPoint.getSignature()).getMethod().getAnnotation(PostMapping.class).value();

// Feign接口注解
// Method method = ((MethodSignature) joinPoint.getSignature()).getMethod();
// FeignClient feignClient = method.getDeclaringClass().getAnnotation(FeignClient.class);