策略模式

1. 定义一个接口
2. 具体的实现类去实现这个接口
3. 定义策略类

   

 

 

package com.lew.group.strategy.demo2;

/**
 * @Author: lew
 * @Date: 2022-3-29/21:30
 */
public enum PaymentEnum {
    /**
     * 支付方式
     */
    Alipay(1,"Alipay"),
    WeChat(2,"WeChat"),
    CreditCard(3,"CreditCard")
    ;

    private final Integer payCode;

    private final String payType;

    public Integer getPayCode() {
        return payCode;
    }

    public String getPayType() {
        return payType;
    }

    PaymentEnum(Integer payCode, String payType) {

        this.payCode = payCode;
        this.payType = payType;
    }

    public static String getPayType(Integer payCode) {
        for (PaymentEnum obj : PaymentEnum.values()) {
            if (payCode.equals(obj.getPayCode())) {
                return obj.getPayType();
            }
        }
        return null;
    }


}