How to implement repeated annotations in java

Explanation

1. The @Repeatable annotation needs to annotate the container class.

2. Two types are required to define repeated comments, one is the comment type and the other is the comment container type. Now, in the show() method of the TestAnnotation class, the @MyAnnotation annotation can be repeated directly.

Java8 also provides a new API when analyzing annotations.

Example

@Repeatable(Authors.class)
@interface Author {
    String name();
}
 
@interface Authors {
    Author[] value();
}
 
@Author(name = "a")
@Author(name = "b")
class Article {
}

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