aspectj切入点匹配特定的注释参数值(aspectj pointcut matching a specific annotation parameter value)

 我正在尝试围绕使用自定义注释注释的方法定义切入点。 注释有一个参数，我想在切入点定义中包含一个检查。 
 
 这是注释： 
 
public @interface MyAnno {
  String[] types;
}
 
 如何应用注释的示例： 
 
public class MyClass {
  @MyAnno(types={"type1", "type2"})
  public void doSomething() {
    // ...
  }
  @MyAnno(types={"type3"})
  public void doSomethingElse() {
    // ...
  }
}
 
 现在我想有两个切入点定义，根据注释的内容选择这两种方法。 
 
 在注释本身上创建切入点相对容易： 
 
@Pointcut("@annotation(myAnno)")
public void pointcutAnno(MyAnno myAnno) {
}

@Pointcut("execution(* *(..)) && pointcutAnno(myAnno)")
public void pointcut(MyAnno myAnno) {
}
 
 这将匹配@MyAnno的每次出现。 但是我如何定义两个切入点，一个匹配@MyAnno ， types包含"type1" ，另一个匹配@MyAnno ， types包含"type3" 

I'm trying to define a pointcut around a method annotated with a custom annotation. The annotation has one parameter that I would like to include a check in the pointcut definition.
 
This is the annotation:
 
public @interface MyAnno {
  String[] types;
}
 
An example of how the annotation could be applied:
 
public class MyClass {
  @MyAnno(types={"type1", "type2"})
  public void doSomething() {
    // ...
  }
  @MyAnno(types={"type3"})
  public void doSomethingElse() {
    // ...
  }
}
 
Now I would like to have two pointcut definitions which select those two methods, based on the contents of the annotation.
 
Creating a pointcut on the annotation itself is relatively easy:
 
@Pointcut("@annotation(myAnno)")
public void pointcutAnno(MyAnno myAnno) {
}

@Pointcut("execution(* *(..)) && pointcutAnno(myAnno)")
public void pointcut(MyAnno myAnno) {
}
 
This will match every occurrence of the of @MyAnno. But how can I define two pointcuts, one matching @MyAnno with types containing "type1" and the other matching @MyAnno with types containing "type3"

原文：https://stackoverflow.com/questions/47459062