spring aop中设置注解属性
时间: 2023-11-20 16:05:03 浏览: 102
在 Spring AOP 中,可以使用注解来标注切面、切点和通知。以下是设置注解属性的步骤:
1. 定义注解
```java
@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
public @interface MyAnnotation {
String value() default "";
}
```
2. 在切点上使用注解
```java
@Pointcut("@annotation(com.example.MyAnnotation)")
public void myPointcut() {}
```
3. 在通知中获取注解属性
```java
@Before("myPointcut() && @annotation(myAnnotation)")
public void beforeMethod(JoinPoint joinPoint, MyAnnotation myAnnotation) {
String value = myAnnotation.value();
// do something
}
```
在上述代码中,`@annotation(myAnnotation)` 表示匹配带有 `MyAnnotation` 注解的方法,`MyAnnotation myAnnotation` 表示将注解作为参数传递给通知方法,并通过 `myAnnotation.value()` 获取注解属性值。
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