枚举类

package com.vx.springbootexcel.common.enums;

/**
 * @author wangbs
 * @date 2019/6/18  11:34
 */
public enum BusinessTypeEnum {

    BUSINESS_TYPE_ENUM("1", "业务类型1"),

    BUSINESS_TYPE2_ENUM("2", "业务类型2")
  ;
    private  String key;
    private  String value;

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

    /**
     * 通过key 获取当前的枚举类型
     * @param key
     * @return
     */
    public static BusinessTypeEnum getEnum(String key) {
        for (BusinessTypeEnum temp : BusinessTypeEnum.values()) {
            if (temp.getKey().equals(key)) {
                return temp;
            }
        }
        return null;
    }

    /**
     * 根据key 获取value  就避免了空指针
     * @param key
     * @return
     */
    public static String getValue(String key) {
        for (BusinessTypeEnum temp : BusinessTypeEnum.values()) {
            if (temp.getKey().equals(key)) {
                return temp.getValue();
            }
        }
        return null;
    }


    public String getKey() {
        return key;
    }

    public String getValue() {
        return value;
    }
}