fix(repair): 修复 OrderService.calculateDiscountPrice 的 BigDecimal 精度丢失问题 - #26
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deibudei wants to merge 1 commit into
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fix(repair): 修复 OrderService.calculateDiscountPrice 的 BigDecimal 精度丢失问题#26deibudei wants to merge 1 commit into
deibudei wants to merge 1 commit into
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Auto Repair
Session:
pr-precision-20260506-143228Plan
RepairPlan[repairTarget=修复 OrderService.calculateDiscountPrice 的 BigDecimal 精度丢失问题, rootCauseHypothesis=calculateDiscountPrice 使用 double 中间计算导致 IEEE 754 浮点精度丢失，199.96 无法精确表示。, suspectedFiles=[target-service/src/main/java/com/example/targetservice/service/OrderService.java, target-service/src/test/java/com/example/targetservice/service/OrderServicePrecisionTest.java], steps=[将 discountRate 转为 BigDecimal，全程使用 BigDecimal 算术替代 double 运算。, 使用 total.multiply(discountRateBD).multiply(BigDecimal.valueOf(quantity)) 计算并返回。, 运行 target-service 测试验证精度与边界校验。], testCommand=mvn -pl target-service test]
Review
Patch is limited to target-service and tests pass.