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org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import java.math.BigDecimal; \/** * \u9000\u6b3e\u989d\u5ea6\u56de\u6eda\u6838\u5fc3\u670d\u52a1 * \u6b63\u89c4\u5782\u76f4\u670d\u52a1\u5546\u5fc5\u5907\u8d26\u52a1\u95ed\u73af\u903b\u8f91&#xff0c;\u9632\u6b62\u9000\u6b3e\u540e\u6743\u76ca\u6ede\u7559 *\/ &#064;Service public class QuotaRefundRollbackService { \/** * \u8ba2\u5355\u9000\u6b3e\u81ea\u52a8\u56de\u6eda\u62b5\u6263\u989d\u5ea6 * &#064;param orderNo \u8ba2\u5355\u7f16\u53f7 * &#064;param refundRatio \u9000\u6b3e\u6bd4\u4f8b * &#064;return \u56de\u6eda\u989d\u5ea6\u7ed3\u679c *\/ &#064;Transactional(rollbackFor &#061; Exception.class) public BigDecimal rollbackQuotaByRefund(String orderNo, BigDecimal refundRatio){ \/\/ \u67e5\u8be2\u8ba2\u5355\u539f\u59cb\u53d1\u653e\u989d\u5ea6 QuotaRecord record &#061; quotaMapper.selectByOrderNo(orderNo); if(record &#061;&#061; null || &#034;USED&#034;.equals(record.getQuotaStatus())){ \/\/ \u5df2\u6838\u9500\u989d\u5ea6\u4e0d\u652f\u6301\u56de\u6eda&#xff0c;\u907f\u514d\u8d26\u52a1\u9519\u4e71 return BigDecimal.ZERO; } \/\/ \u6309\u9000\u6b3e\u6bd4\u4f8b\u56de\u6eda\u56de\u6536\u989d\u5ea6 BigDecimal rollbackQuota &#061; record.getGrantQuota().multiply(refundRatio); \/\/ \u66f4\u65b0\u989d\u5ea6\u4e3a\u56de\u6536\u72b6\u6001 quotaMapper.updateRollbackQuota(orderNo, rollbackQuota); \/\/ \u8bb0\u5f55\u56de\u6eda\u5bf9\u8d26\u6d41\u6c34 quotaLogMapper.insertRollbackLog(orderNo, rollbackQuota); return rollbackQuota.setScale(2, BigDecimal.ROUND_HALF_UP); } 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