diff --git a/ProductDaotyj.java b/ProductDaotyj.java
deleted file mode 100644
index 858f01c..0000000
--- a/ProductDaotyj.java
+++ /dev/null
@@ -1,23 +0,0 @@
-package com.tyj.dao;
-
-import java.util.List;
-
-import com.tyj.domain.Product;
-
-public interface ProductDaotyj {
-
-	//查询所有商品数据
-		List<Product> findAll();
-		//根据主键查询
-		Product findById(String id);
-		//按照类别进行查询
-		List<Product> findByCategory(String  category);
-		
-		//创建商品信息 
-		int create(Product product);
-		//修改商品
-			int modify(Product product);
-			//删除商品信息
-			int remove(Product product);
-			List<Product> findCategory(String category);
-}