java工厂模式加策略模式实现动态选择类例子

1.工厂模式加策略模式实现动态选择类


public interface RefundIdentifyService {
    CommonNotify toRefund(RefundModel refundModel);
}




//支付宝退款实现
@AllArgsConstructor
@Service
public class AliIdentifyService implements RefundIdentifyService {

    private final RefundUtil refundUtil;

    @PostConstruct
    private void init() {
        //注册类型
        RefundIdentifyFactory.register(1, this);
    }


    @Override
    public CommonNotify toRefund(RefundModel refundModel) {
           //todo something
            return new CommonNotify(false, response.getSubMsg());
        }
    }


//微信退款实现
@AllArgsConstructor
@Service
public class WxIdentifyService implements RefundIdentifyService {

    private final RefundUtil refundUtil;

    @PostConstruct
    private void init() {
       //注册类型
        RefundIdentifyFactory.register(2, this);
    }


    @Override
    public CommonNotify toRefund(RefundModel refundModel) {
      //todo something
        return refundUtil.wxRefund(wxRefund);
    }
}


//设置工厂

public class RefundIdentifyFactory {

    private static Map ocrFactory = new HashMap<>();

    
    public static void register(Integer type, RefundIdentifyService refundIdentifyService) {
        if (null != type) {
            ocrFactory.put(type, refundIdentifyService);
        }
    }

    
    public static RefundIdentifyService createObj(Integer type) {
        return ocrFactory.get(type);
    }
}

//调用
CommonNotify commonNotify = RefundIdentifyFactory.createObj(orderInfo.getType()).toRefund(refundModel);