diff --git a/business/jxutils/jxutils.go b/business/jxutils/jxutils.go
index 4ea6c2da8..10cc665be 100644
--- a/business/jxutils/jxutils.go
+++ b/business/jxutils/jxutils.go
@@ -712,7 +712,7 @@ func GuessDataResourceVendor(resourceURL string) (vendorID int) {
 	vendorID = -1
 	for tmpVendorID, urlList := range resourceTypeMap {
 		for _, v := range urlList {
-			if strings.Index(resourceURL, "//"+v) >= 0 {
+			if v != "" && strings.Index(resourceURL, "//"+v) >= 0 {
 				vendorID = tmpVendorID
 				break
 			}
diff --git a/business/model/food_recipe.go b/business/model/food_recipe.go
index 6c75cb419..f9f79c203 100644
--- a/business/model/food_recipe.go
+++ b/business/model/food_recipe.go
@@ -13,7 +13,7 @@ type FoodRecipe struct {
 	AuthorID string `orm:"size(48);column(author_id);index" json:"authorID"`
 
 	Description   string `orm:"size(4096)" json:"description"`
-	Img           string `orm:"size(1024)" json:"img"`
+	Img           string `orm:"size(512)" json:"img"`
 	TimeInMinute  int    `json:"timeInMinute"` // 大约时间（分钟）
 	UpvoteCount   int    `json:"upvoteCount"`
 	DownvoteCount int    `json:"downvoteCount"`
@@ -39,7 +39,7 @@ type FoodRecipeStep struct {
 
 	Name        string `orm:"size(48)" json:"name"`
 	Description string `orm:"size(4096)" json:"description"`
-	Img         string `orm:"size(1024)" json:"img"`
+	Img         string `orm:"size(512)" json:"img"`
 }
 
 func (*FoodRecipeStep) TableUnique() [][]string {