bill job

business/jxutils/jxutils.go

@@ -186,6 +186,21 @@ func GenOrderNo() (orderNo int64) {
 	return orderNo
 }
 
+func GenBillID() (billID int64) {
+	const prefix = 66
+	const randPartNum = 100
+	billID = time.Now().Unix() - orderNoBeginTimestamp
+	billID = billID * randPartNum
+	md5Bytes := md5.Sum([]byte(utils.GetUUID()))
+	randPart := 0
+	for k, v := range md5Bytes {
+		randPart += int(v) << ((k % 3) * 8)
+	}
+	billID += int64(randPart % randPartNum)
+	billID += int64(math.Pow10(int(math.Log10(float64(billID)))+1)) * prefix
+	return billID
+}
+
 func GenAfsOrderNo() (orderNo int64) {
 	const prefix = 80
 	const randPartNum = 100