枚舉的本質實際上是一種多例模式,枚舉中可以定義各種類型,在開發中使用枚舉主要是考慮到線程安全,代碼如下:
package com.mischen.pay.common.core.enums;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* 消息消費隊列名稱枚舉
* @author:mischen
*/
public enum NotifyDestinationNameEnum {
/**
* 會計隊列
*/
ACCOUNTING_NOTIFY("會計隊列"),
/**
* 銀行隊列
*/
BANK_NOTIFY("銀行隊列") ,
/**
* 商戶通知
*/
MERCHANT_NOTIFY("商戶通知隊列");
/** 描述 */
private String desc;
private NotifyDestinationNameEnum(String desc) {
this.desc = desc;
}
public String getDesc() {
return desc;
}
public void setDesc(String desc) {
this.desc = desc;
}
public static NotifyDestinationNameEnum getEnum(String enumName) {
NotifyDestinationNameEnum resultEnum = null;
NotifyDestinationNameEnum[] enumAry = NotifyDestinationNameEnum.values();
for (int i = 0; i < enumAry.length; i++) {
if (enumAry[i].name().equals(enumName)) {
resultEnum = enumAry[i];
break;
}
}
return resultEnum;
}
public static Map<String, Map<String, Object>> toMap() {
NotifyDestinationNameEnum[] ary = NotifyDestinationNameEnum.values();
Map<String, Map<String, Object>> enumMap = new HashMap<String, Map<String, Object>>();
for (int num = 0; num < ary.length; num++) {
Map<String, Object> map = new HashMap<String, Object>();
String key = ary[num].name();
map.put("desc", ary[num].getDesc());
map.put("name", ary[num].name());
enumMap.put(key, map);
}
return enumMap;
}
@SuppressWarnings({ "rawtypes", "unchecked" })
public static List toList() {
NotifyDestinationNameEnum[] ary = NotifyDestinationNameEnum.values();
List list = new ArrayList();
for (int i = 0; i < ary.length; i++) {
Map<String, String> map = new HashMap<String, String>();
map.put("desc", ary[i].getDesc());
map.put("name", ary[i].name());
list.add(map);
}
return list;
}
}