java 枚举的优雅定义

﹏ヽ暗。殇╰゛Y 2024-03-16 22:59 69阅读 0赞

#### java 枚举的优雅定义 ####

##### 新建枚举 #####

public enum CommissionStatusEnum {
        
    
        ONGOING(10, "进行中"),
        FINISHED(20, "已完成"),
        CLOSED(30, "已关闭");
    
        private Integer key;
        private String value;
    
        CommissionStatusEnum(Integer key, String value) {
        
            this.key = key;
            this.value = value;
        }
    
        public static String getValue(Integer key) {
        
            for (CommissionStatusEnum c : CommissionStatusEnum.values()) {
        
                if (c.getKey().equals(key)) {
        
                    return c.value;
                }
            }
            return null;
        }
    
        public static String getName(Integer key) {
        
            for (CommissionStatusEnum c : CommissionStatusEnum.values()) {
        
                if (c.getKey().equals(key)) {
        
                    return c.name();
                }
            }
            return "";
        }
    
        public static CommissionStatusEnum getEnum(Integer key) {
        
            for (CommissionStatusEnum c : CommissionStatusEnum.values()) {
        
                if (c.getKey().equals(key)) {
        
                    return c;
                }
            }
            return null;
        }
    
        public static boolean isExist(Integer key) {
        
            for (CommissionStatusEnum c : CommissionStatusEnum.values()) {
        
                if (c.getKey().equals(key)) {
        
                    return true;
                }
            }
            return false;
        }
    
        public Integer getKey() {
        
            return key;
        }
    
        public void setKey(Integer key) {
        
            this.key = key;
        }
    
        public String getValue() {
        
            return value;
        }
    
        public void setValue(String value) {
        
            this.value = value;
        }
    }

###### 获取枚举的key ######

CommissionStatusEnum.FINISHED.getKey();

###### 获取枚举的value ######

CommissionStatusEnum.FINISHED.getValue();

###### 获取枚举的名称 ######

CommissionStatusEnum.getName(CommissionStatusEnum.CLOSED.getKey());
    CommissionStatusEnum.getEnum(CommissionStatusEnum.CLOSED.getKey());