枚举案例二 BILL_TYPE_BJ("BILL_TYPE", "bj", "布机单"),

最新推荐文章于 2020-12-21 20:50:20 发布

转载最新推荐文章于 2020-12-21 20:50:20 发布 · 481 阅读

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原文链接：https://my.oschina.net/u/3621360/blog/2056268

文章标签：

#json #python #java

博客展示了Java中枚举类的定义与操作，包含工单类型和状态的枚举。提供了根据键、值、状态获取对应信息的方法，还展示了将枚举值转换为JSON列表的方法，同时提及Python工程师招聘信息，重点为Java代码实现。

2019独角兽企业重金招聘Python工程师标准>>>

package yt.gk.woserviceapi.common;

import com.alibaba.fastjson.JSONObject;

import java.util.ArrayList;
import java.util.List;

public enum ConstEnum {

   /**
   * 工单类型
   */
   BILL_TYPE_BJ("BILL_TYPE", "bj", "布机单"),
   BILL_TYPE_YJ("BILL_TYPE","yj", "移机单"),
   BILL_TYPE_BH("BILL_TYPE","bh", "补货单"),
   BILL_TYPE_PD("BILL_TYPE","pd", "盘点单"),
   BILL_TYPE_CGRK("BILL_TYPE","cgrk", "采购入库单"),
   BILL_TYPE_LHCK("BILL_TYPE","lhck", "领货出库"),
   BILL_TYPE_SBXJ("BILL_TYPE","sbxj", "设备巡检"),
   BILL_TYPE_SBYC("BILL_TYPE","sbyc", "设备异常"),

   /**
   * 工单状态
   */
   BILL_STATE_WYC("BILL_STATE", 0, "未完成"),
   BILL_STATE_YWC("BILL_STATE", 1, "已完成")

;

private String unique;

private String key;

private Integer state;

private String value;

   ConstEnum(String unique, String key, String value) {
       this.unique = unique;
       this.key = key;
       this.value = value;
   }

   ConstEnum(String unique, Integer state, String value) {
       this.unique = unique;
       this.state = state;
       this.value = value;
   }

   public String getUnique() {
       return unique;
   }

   public void setUnique(String unique) {
       this.unique = unique;
   }

   public String getKey() {
       return key;
   }

   public void setKey(String key) {
       this.key = key;
   }

   public String getValue() {
       return value;
   }

   public void setValue(String value) {
       this.value = value;
   }

   public Integer getState() {
       return state;
   }

   public void setState(Integer state) {
       this.state = state;
   }

   //key为字符串
   public static String getValueByKey(String unique, String key){
       for (ConstEnum s : ConstEnum.values()) {
           if(s.getKey().equals(key) && s.getUnique().equals(unique)){
               return s.getValue();
           }
       }
       return "";
   }

   public static String getKeyByValue(String unique, String value){
       for (ConstEnum s : ConstEnum.values()) {
           if(value.equals(s.getValue()) && s.getUnique().equals(unique)){
               return s.getKey();
           }
       }
       return "";
   }

   //state为Integer
   public static String getValueByState(String unique, Integer state){
       for (ConstEnum s : ConstEnum.values()) {
           if(s.getState()==state && s.getUnique().equals(unique)){
               return s.getValue();
           }
       }
       return "";
   }

   public static Integer getStateByValue(String unique, String value){
       for (ConstEnum s : ConstEnum.values()) {
           if(value.equals(s.getValue()) && s.getUnique().equals(unique)){
               return s.getState();
           }
       }
       return 0;
   }

   //全部枚举值转化位j'son
   public static List<JSONObject> getStateByValue(String unique){
       List<JSONObject> enumList= new ArrayList<>();
       for (ConstEnum s : ConstEnum.values()) {
           if(s.getUnique().equals(unique)){
               JSONObject json = new JSONObject();
               json.put("key", s.getKey());
               json.put("value", s.getValue());
               enumList.add(json);
           }
       }
       return enumList;
   }
}

枚举action方法调用操作

@RequestMapping(value="json",method = RequestMethod.GET)
public  List<JSONObject> json(){
    List<JSONObject> bill_type = ConstEnum.getStateByValue("BILL_TYPE");
    return  bill_type;
}

执行结果:

[
  {
    "value": "布机单",
    "key": "bj"
  },
  {
    "value": "移机单",
    "key": "yj"
  },
  {
    "value": "补货单",
    "key": "bh"
  },
  {
    "value": "盘点单",
    "key": "pd"
  },
  {
    "value": "采购入库单",
    "key": "cgrk"
  },
  {
    "value": "领货出库",
    "key": "lhck"
  },
  {
    "value": "设备巡检",
    "key": "sbxj"
  },
  {
    "value": "设备异常",
    "key": "sbyc"
  }
]

转载于:https://my.oschina.net/u/3621360/blog/2056268