package com.koyw23.Annotation;
import java.lang.annotation.ElementType;import java.lang.annotation.Retention;import java.lang.annotation.RetentionPolicy;import java.lang.annotation.Target;
@Target(ElementType.TYPE)@Retention(RetentionPolicy.RUNTIME)public @interface Ann { int text(); String textStr();}
package com.koyw23.Annotation;
@Ann(text = 2, textStr = "name")public class AnnClass {
private int id; private int Ann_Name;
public int getId() { return id; }
public void setId(int id) { this.id = id; }
public int getAnn_Name() { return Ann_Name; }
public void setAnn_Name(int ann_Name) { Ann_Name = ann_Name; }
public static void main(String[] args) {
try { Class<?> clazz = Class.forName("com.koyw23.Annotation.AnnClass"); Ann ann = (Ann) clazz.getAnnotation(Ann.class); boolean b = clazz.isAnnotationPresent(Ann.class); if (b) {
System.out.println(ann.text()); System.out.println(ann.textStr()); if(ann.textStr().equals("name")){ System.err.println("nishabi"); } }
} catch (ClassNotFoundException e) { e.printStackTrace(); }
}
}
转载于:https://www.cnblogs.com/koyw23/p/5669261.html
相关资源：数据结构—成绩单生成器