Java中枚举类型Enum的一种使用方式

 1 package demo.java.jiangkd.enum_.demo;
 2 
 3 import lombok.Getter;
 4 
 5 /**
 6  * 状态
 7  * 
 8  * @author jiangkd
 9  * @date 2020/06/04
10  */
11 @Getter
12 public enum Status {
13 
14     SUCCESS(1, "执行成功"), FAILED(2, "执行失败");
15 
16     private Integer code;
17     private String desc;
18 
19     private Status(int code, String desc) {
20         this.code = code;
21         this.desc = desc;
22     }
23 
24     public static String getDesc(Integer code) {
25         //
26         Status[] values = Status.values();
27         for (Status s : values) {
28             if (s.getCode() == code) {
29                 return s.getDesc();
30             }
31         }
32         return null;
33     }
34 
35     public static void main(String[] args) {
36         //
37         String desc = Status.getDesc(1);
38         System.out.println(desc); // 执行成功
39 
40         desc = Status.getDesc(2);
41         System.out.println(desc); // 执行失败
42 
43         desc = Status.getDesc(3);
44         System.out.println(desc); // null
45     }
46 }