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  • java 枚举类非常好的运用实例

    枚举类 举例:

     1 import lombok.Getter;
     2 
     3 public class PublicConstants {
     4     public enum StatusEnum {
     5 
     6         STATUS_TEMP_STORAGE(1,"暂存", "待提交"),
     7         STATUS_AUDI_TING(2,"审批中"),
     8         STATUS_AUDIT_PASS(3,"审批通过","审批通过","**确认·待***确认"),
     9         STATUS_AUDIT_REJECT(4,"审批驳回"),
    10         STATUS_APPEAL(5,"申诉中", "申诉"),
    11         STATUS_CANCEL(6,"已作废"),
    12         STATUS_FINISH(7,"完成","完成","***已确认"),
    13         STATUS_DELETE(8,"删除"),
    14         STATUS_REVOKE(9,"已撤销");
    15 
    16         @Getter/** 码值 **/
    17         private Integer code;
    18         @Getter/** 名称 **/
    19         private String name;
    20         @Getter/** 别名 **/
    21         private String alias;
    22         @Getter/** 描述 **/
    23         private String desc;
    24 
    25         StatusEnum(Integer code, String name, String alias, String desc) {
    26             this.code = code;
    27             this.name = name;
    28             this.alias = alias;
    29             this.desc = desc;
    30         }
    31 
    32         StatusEnum(Integer code, String name, String alias) {
    33             this.code = code;
    34             this.name = name;
    35             this.alias = alias;
    36             this.desc = name;
    37         }
    38 
    39         StatusEnum(Integer code, String name) {
    40             this.code = code;
    41             this.name = name;
    42             this.alias = name;
    43             this.desc = name;
    44         }
    45 
    46         //通过描述获取code
    47         public static int getCode(String name){
    48             StatusEnum[] values = StatusEnum.values();
    49             for(int i=0;i<values.length;i++){
    50                 StatusEnum be = values[i];
    51                 if(be.name.equalsIgnoreCase(name)){
    52                     return be.code;
    53                 }
    54             }
    55             return 0;
    56         }
    57 
    58         //通过code获取枚举对象
    59         public static StatusEnum getEnumByCode(Integer code) {
    60             for (StatusEnum flagEnum : StatusEnum.values()) {
    61                 if (code.equals(flagEnum.getCode())) {
    62                     return flagEnum;
    63                 }
    64             }
    65             return null;
    66         }
    67     }
    68 
    69 }

    运用:

    en.setStateName(PublicConstants.StatusEnum.getEnumByCode(en.getStatus()).getName());

    说明:使用 常量类 PublicConstants 是为了 代码提示,方便编程。

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  • 原文地址:https://www.cnblogs.com/bridgestone29-08/p/15184201.html
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