update print, del print

dao/print_dao.go

@@ -30,9 +30,7 @@ func GetPrinters(db *sqlx.DB, appID int, printNo string) (printers []*model.Prin
 func GetPrintersPage(db *sqlx.DB, appID int, printNo, name string, status, isOnline, offset, pageSize int) (page *model.PagedInfo, err error) {
 	var (
 		printers []*model.Printer
-		count    = &struct {
-			Count int `json:"count"`
-		}{}
+		count    int
 	)
 	sqlCount := `
 		SELECT COUNT(*) count
@@ -67,14 +65,14 @@ func GetPrintersPage(db *sqlx.DB, appID int, printNo, name string, status, isOnl
 	}
 	//查总数
 	row := db.DB.QueryRow(sqlCount+sqlOhter, sqlParams...)
-	if err = row.Scan(count.Count); err != nil {
+	if err = row.Scan(&count); err != nil {
 		return page, err
 	}
 	sqlOhter += " LIMIT ? OFFSET ?"
 	sqlParams = append(sqlParams, pageSize, offset)
 	if err = db.Select(&printers, sql+sqlOhter, sqlParams...); err == nil {
 		return &model.PagedInfo{
-			TotalCount: count.Count,
+			TotalCount: count,
 			Data:       printers,
 		}, err
 	}