Java annotation Merge, annotation inheritance __java

Sometimes in spring, a class marks a lot of annotations.

In fact, Java annotations can be inherited (that is, merging multiple annotations into 1)

such as Springmvc's notes.

@RestController
@RequestMapping ("/person")

Can be merged into one

@PathRestController ("/user")

Implementation is:

Import java.lang.annotation.Documented;
Import Java.lang.annotation.ElementType;
Import java.lang.annotation.Retention;
Import Java.lang.annotation.RetentionPolicy;
Import Java.lang.annotation.Target;

Import Org.springframework.core.annotation.AliasFor;
Import org.springframework.web.bind.annotation.RequestMapping;
Import Org.springframework.web.bind.annotation.RestController;

@Target (Elementtype.type)
@Retention (retentionpolicy.runtime)
@Documented
@RestController
@ Requestmapping public
@interface Pathrestcontroller {
	@AliasFor ("path")
	string[] Value () default {};

	@AliasFor ("value")
	string[] path () default {};
}