@RequestMapping底层源码

##@RequestMapping注解

1. 结构
   

2.源码

package org.springframework.web.bind.annotation;

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;


@Target({ElementType.TYPE, ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Mapping
public @interface RequestMapping {

	
	String name() default "";

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

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

	
	RequestMethod[] method() default {};

	
	String[] params() default {};

	
	String[] headers() default {};

	
	String[] consumes() default {};

	
	String[] produces() default {};

}
3.总结
注释类,其中规范了注解的作用域,使用方法,声明周期