diff --git a/jsowell-pile/src/main/java/com/jsowell/pile/service/programlogic/AbstractProgramLogic.java b/jsowell-pile/src/main/java/com/jsowell/pile/service/programlogic/AbstractProgramLogic.java index b867e849d..bf4e803bb 100644 --- a/jsowell-pile/src/main/java/com/jsowell/pile/service/programlogic/AbstractProgramLogic.java +++ b/jsowell-pile/src/main/java/com/jsowell/pile/service/programlogic/AbstractProgramLogic.java @@ -38,7 +38,6 @@ import org.springframework.beans.factory.annotation.Value; import javax.annotation.Resource; import java.math.BigDecimal; import java.math.RoundingMode; -import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Objects; @@ -800,147 +799,6 @@ public abstract class AbstractProgramLogic implements InitializingBean { return resultMap; } - /** - * 余额支付 计算需要退回的金额 - * 【公共方法】 - * - * @param principalPay 本金支付金额 - * @param giftPay 赠送金额支付的金额 - * @param orderAmount 订单消费金额 - * @param discountAmount 订单折扣金额 - * @param insuranceAmount 保险金额 - * @return - */ - protected static Map calculateReturnAmount(BigDecimal principalPay, BigDecimal giftPay, BigDecimal orderAmount, BigDecimal discountAmount, BigDecimal insuranceAmount) { - // 创建返回的Map - Map refundMap = new HashMap<>(); - - // 初始化所有返回值为0 - refundMap.put("returnPrincipal", BigDecimal.ZERO); - refundMap.put("returnGift", BigDecimal.ZERO); - refundMap.put("returnPrincipalForInsurance", BigDecimal.ZERO); - refundMap.put("returnGiftForInsurance", BigDecimal.ZERO); - - // 设置精度为2位小数 - RoundingMode roundingMode = RoundingMode.HALF_UP; - int scale = 2; - - // 1. 计算总支付金额和电费预付金额 - BigDecimal totalPay = principalPay.add(giftPay).setScale(scale, roundingMode); - BigDecimal prepaidElectricity = totalPay.subtract(insuranceAmount).setScale(scale, roundingMode); - - // 2. 计算实际电费消费金额（应用折扣） - BigDecimal actualConsume = orderAmount.subtract(discountAmount); - if (actualConsume.compareTo(BigDecimal.ZERO) < 0) { - actualConsume = BigDecimal.ZERO; - } - actualConsume = actualConsume.setScale(scale, roundingMode); - - // 3. 计算电费应退款金额 - BigDecimal electricityRefund = prepaidElectricity.subtract(actualConsume); - if (electricityRefund.compareTo(BigDecimal.ZERO) < 0) { - electricityRefund = BigDecimal.ZERO; - } - electricityRefund = electricityRefund.setScale(scale, roundingMode); - - // 4. 判断保险是否退款（实际电费消费 < 1元时退还保险） - BigDecimal insuranceRefund = BigDecimal.ZERO; - boolean isInsuranceRefund = actualConsume.compareTo(new BigDecimal("1.00")) < 0; - if (isInsuranceRefund) { - insuranceRefund = insuranceAmount.setScale(scale, roundingMode); - } - - // 5. 计算电费退款中本金和赠金的部分（优先使用本金，退款时优先退回赠金） - BigDecimal remainingElectricityRefund = electricityRefund; - BigDecimal principalUsedForElectricity = BigDecimal.ZERO; - BigDecimal giftUsedForElectricity = BigDecimal.ZERO; - - // 5.1 计算本金和赠金在电费预付中的使用情况 - if (prepaidElectricity.compareTo(BigDecimal.ZERO) > 0) { - // 本金优先用于支付电费，最多不超过本金总额且不超过电费预付金额 - principalUsedForElectricity = principalPay.min(prepaidElectricity); - principalUsedForElectricity = principalUsedForElectricity.setScale(scale, roundingMode); - - // 剩余的电费预付由赠金支付 - giftUsedForElectricity = prepaidElectricity.subtract(principalUsedForElectricity); - giftUsedForElectricity = giftUsedForElectricity.setScale(scale, roundingMode); - - // 5.2 分配电费退款（优先退回赠金） - // 先退赠金支付的部分 - if (giftUsedForElectricity.compareTo(BigDecimal.ZERO) > 0) { - BigDecimal giftRefundForElectricity = remainingElectricityRefund.min(giftUsedForElectricity); - giftRefundForElectricity = giftRefundForElectricity.setScale(scale, roundingMode); - refundMap.put("returnGift", giftRefundForElectricity); - remainingElectricityRefund = remainingElectricityRefund.subtract(giftRefundForElectricity); - } - - // 剩余的电费退款退回到本金 - if (remainingElectricityRefund.compareTo(BigDecimal.ZERO) > 0) { - BigDecimal principalRefundForElectricity = remainingElectricityRefund.min(principalUsedForElectricity); - principalRefundForElectricity = principalRefundForElectricity.setScale(scale, roundingMode); - refundMap.put("returnPrincipal", principalRefundForElectricity); - } - } - - // 6. 计算保险退款中本金和赠金的部分 - if (insuranceRefund.compareTo(BigDecimal.ZERO) > 0) { - // 计算支付电费后剩余的本金和赠金 - BigDecimal remainingPrincipalAfterElectricity = principalPay.subtract(refundMap.get("returnPrincipal")); - BigDecimal remainingGiftAfterElectricity = giftPay.subtract(refundMap.get("returnGift")); - - // 保险支付顺序：优先使用剩余本金，不足部分用赠金 - BigDecimal principalUsedForInsurance = remainingPrincipalAfterElectricity.min(insuranceAmount); - BigDecimal giftUsedForInsurance = insuranceAmount.subtract(principalUsedForInsurance); - - // 保险退款（优先退回赠金部分） - BigDecimal remainingInsuranceRefund = insuranceRefund; - - // 先退赠金支付的保险部分 - if (giftUsedForInsurance.compareTo(BigDecimal.ZERO) > 0) { - BigDecimal giftRefundForInsurance = remainingInsuranceRefund.min(giftUsedForInsurance); - giftRefundForInsurance = giftRefundForInsurance.setScale(scale, roundingMode); - refundMap.put("returnGiftForInsurance", giftRefundForInsurance); - remainingInsuranceRefund = remainingInsuranceRefund.subtract(giftRefundForInsurance); - } - - // 剩余的保险退款退回到本金 - if (remainingInsuranceRefund.compareTo(BigDecimal.ZERO) > 0) { - BigDecimal principalRefundForInsurance = remainingInsuranceRefund.min(principalUsedForInsurance); - principalRefundForInsurance = principalRefundForInsurance.setScale(scale, roundingMode); - refundMap.put("returnPrincipalForInsurance", principalRefundForInsurance); - } - } - - return refundMap; - } - - public static void main(String[] args) { - BigDecimal principalPay = new BigDecimal("30"); - BigDecimal giftPay = new BigDecimal("20"); - BigDecimal orderAmount = new BigDecimal("0.8"); - BigDecimal discountAmount = new BigDecimal("0"); - BigDecimal insuranceAmount = new BigDecimal("0.0"); - Map stringBigDecimalMap = calculateReturnAmount(principalPay, giftPay, orderAmount, discountAmount, insuranceAmount); - - // 获取各项退款金额 - BigDecimal returnPrincipal = stringBigDecimalMap.get("returnPrincipal"); - BigDecimal returnGift = stringBigDecimalMap.get("returnGift"); - BigDecimal returnPrincipalForInsurance = stringBigDecimalMap.get("returnPrincipalForInsurance"); - BigDecimal returnGiftForInsurance = stringBigDecimalMap.get("returnGiftForInsurance"); - - // 计算总计 - BigDecimal electricityRefund = returnPrincipal.add(returnGift); - BigDecimal insuranceRefund = returnPrincipalForInsurance.add(returnGiftForInsurance); - BigDecimal totalRefund = electricityRefund.add(insuranceRefund); - BigDecimal totalPrincipalRefund = returnPrincipal.add(returnPrincipalForInsurance); - BigDecimal totalGiftRefund = returnGift.add(returnGiftForInsurance); - - String input = String.format("输入：本金%s元，赠金%s元，消费%s元，折扣%s元，保险%s元", principalPay, giftPay, orderAmount, discountAmount, insuranceAmount); - System.out.println(input); - String output = String.format("输出：%s元，赠金%s元，保险%s元，总退款%s元", returnPrincipal, returnGift, returnPrincipalForInsurance, returnGiftForInsurance, totalRefund); - System.out.println(output); - } - /** * 计算解冻金额 *