Java枚举类型如何使用

将写死的数据或者参数写入枚举类中，需要时直接调用。

/**
 * @description: 状态值枚举类
 * @author: Aweicy
 * @create: 2020-09-29 21:30
 **/ public enum StatusEnum { STATUS_101(101,"错误码101"), STATUS_DEFAULT(-1,""); private int code; private String msg; public static StatusEnum getCode(int code){ for (StatusEnum e: StatusEnum.values()) { if(e.code == code){ return e; } } return STATUS_DEFAULT; } StatusEnum(int code, String msg) { this.code = code; this.msg = msg; } public int getCode() { return code; } public void setCode(int code) { this.code = code; } public String getMsg() { return msg; } public void setMsg(String msg) { this.msg = msg; } } 

测试

public static void main(String[] args) { String msg = StatusEnum.getCode(101).getMsg(); System.out.println(msg); } 

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