diff --git a/controllers/api_controller.go b/controllers/api_controller.go
index 5bf778c50..943804a89 100644
--- a/controllers/api_controller.go
+++ b/controllers/api_controller.go
@@ -341,10 +341,11 @@ func (c *ApiController) DoPrint(dataMap map[string]interface{}) (data, errCode s
 			return buildParamErrCodeAndErr(keyContent)
 		}
 	}
-	if _, ok := dataMap[keyOrderNo].(int); !ok {
+	if _, ok := dataMap[keyOrderNo].(string); !ok {
 		return buildParamErrCodeAndErr(keyOrderNo)
 	} else {
-		if orderNo = dataMap[keyOrderNo].(int); orderNo == 0 {
+		orderNoStr := dataMap[keyOrderNo].(string)
+		if orderNo = utils.Str2Int(orderNoStr); orderNo == 0 {
 			return buildParamErrCodeAndErr(keyOrderNo)
 		}
 	}
@@ -385,30 +386,6 @@ func (c *ApiController) GetPrintMsg(dataMap map[string]interface{}) (data map[st
 	}
 	return data, errCode, err
 }
-func unicode2utf8(source string) string {
-	var res = []string{""}
-	sUnicode := strings.Split(source, "\\u")
-	var context = ""
-	for _, v := range sUnicode {
-		var additional = ""
-		if len(v) < 1 {
-			continue
-		}
-		if len(v) > 4 {
-			rs := []rune(v)
-			v = string(rs[:4])
-			additional = string(rs[4:])
-		}
-		temp, err := strconv.ParseInt(v, 16, 32)
-		if err != nil {
-			context += v
-		}
-		context += fmt.Sprintf("%c", temp)
-		context += additional
-	}
-	res = append(res, context)
-	return strings.Join(res, "")
-}
 
 //查询打印机状态
 func (c *ApiController) GetPrinterStatus(dataMap map[string]interface{}) (data, errCode string, err error) {