diff --git a/dao/print_bill.go b/dao/print_bill.go
index eeaefe6..7e2c4b6 100644
--- a/dao/print_bill.go
+++ b/dao/print_bill.go
@@ -7,7 +7,10 @@ import (
 )
 
 // QueryPrintBill 查询打印机账户是否存在
-func QueryPrintBill(userId, printNo string) ([]*app_model.PrintBill, error) {
+func QueryPrintBill(db *sqlx.Tx, userId, printNo string) ([]*app_model.PrintBill, error) {
+	if db == nil {
+		db = globals.GetTxDb()
+	}
 	sql := `SELECT * FROM print_bill WHERE 1 = 1  `
 	var param []interface{}
 	if userId != "" {
@@ -20,7 +23,7 @@ func QueryPrintBill(userId, printNo string) ([]*app_model.PrintBill, error) {
 	}
 
 	var result []*app_model.PrintBill
-	if err := globals.GetDB().Select(&result, sql, param...); err != nil {
+	if err := db.Select(&result, sql, param...); err != nil {
 		return nil, err
 	}
 	return result, nil
@@ -46,7 +49,7 @@ func AddMoney(db *sqlx.Tx, printNo string, money int64) error {
 // UpdateBillToUser 当打印机账户从菜市绑定时,未分配用户,用户再使用小程序绑定时,将打印机分配给用户!
 func UpdateBillToUser(db *sqlx.Tx, param *app_model.PrintBill) error {
 	sql := `UPDATE print_bill SET user_id =   ? WHERE print_no = ?`
-	_, err := globals.GetTxDb().Exec(sql, []interface{}{param.UserId, param.PrintNo}...)
+	_, err := db.Exec(sql, []interface{}{param.UserId, param.PrintNo}...)
 	return err
 }
 
diff --git a/services/print_server/app_server/print_bill.go b/services/print_server/app_server/print_bill.go
index 3b0b43c..8b19d23 100644
--- a/services/print_server/app_server/print_bill.go
+++ b/services/print_server/app_server/print_bill.go
@@ -15,7 +15,7 @@ var PrintBillServer = new(PrintBill)
 // InitPPrintBill 初始化打印机账户
 func (p *PrintBill) InitPPrintBill(tx *sqlx.Tx, bill *app_model.PrintBill) error {
 	// 查询打印机是否有账户,没有添加
-	result, err := dao.QueryPrintBill("", bill.PrintNo)
+	result, err := dao.QueryPrintBill(tx, "", bill.PrintNo)
 	if err != nil {
 		return err
 	}
@@ -40,7 +40,7 @@ func (p *PrintBill) InitPPrintBill(tx *sqlx.Tx, bill *app_model.PrintBill) error
 
 // QueryPrintBill 查询打印机余额
 func (p *PrintBill) QueryPrintBill(userId, printNo string) (*app_model.PrintBill, error) {
-	result, err := dao.QueryPrintBill(userId, printNo)
+	result, err := dao.QueryPrintBill(nil, userId, printNo)
 	if err != nil {
 		return nil, err
 	}