diff --git a/ascentweb/src/main/java/com/ascent/service/OrderService b/ascentweb/src/main/java/com/ascent/service/OrderService
new file mode 100644
index 0000000000000000000000000000000000000000..b89b91afadff07e4f88ca373b879a8476327528a
--- /dev/null
+++ b/ascentweb/src/main/java/com/ascent/service/OrderService
@@ -0,0 +1,144 @@
+package com.ascent.service;
+
+import com.ascent.bean.Orderitem;
+import com.ascent.bean.Orders;
+import com.ascent.bean.Product;
+import com.ascent.mapper.OrderitemMapper;
+import com.ascent.mapper.OrdersMapper;
+import com.ascent.util.SqlSessionFactoryUtils;
+import org.apache.ibatis.session.SqlSession;
+import org.apache.ibatis.session.SqlSessionFactory;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 处理订单管理相关的类（删除、修改和询等）
+ */
+public class OrderService {
+    SqlSessionFactory sqlSessionFactory = SqlSessionFactoryUtils.getSqlSessionFactory();
+
+    /**
+     *查询所有订单信息
+     * @return
+     */
+    public List<Orders> selectAllOrder(){
+        // 获取Mapper
+        SqlSession sqlSession = sqlSessionFactory.openSession();
+        OrdersMapper mapper = sqlSession.getMapper(OrdersMapper.class);
+        //调用方法
+        List<Orders> orders = mapper.selectAllOrder();
+        //释放资源
+        sqlSession.close();
+        // 返回订单集合
+        return orders;
+    }
+
+    /**
+     *根据订单id查询订单项，返回商品id
+     * @param ordersid
+     * @return
+     */
+    public List<Product> selectOrderitemByOrdersid(int ordersid){
+        // 获取Mapper
+        SqlSession sqlSession = sqlSessionFactory.openSession();
+        OrderitemMapper mapper = sqlSession.getMapper(OrderitemMapper.class);
+        //调用方法
+        int[] productid = mapper.selectOrderitemProductidByOrdersid(ordersid);
+        //调用其他接口的商品方法，通过商品id获得商品参数
+        List<Product> products =new ArrayList<>();
+        ProductService productService=new ProductService();
+        for (int i = 0; i < productid.length; i++) {
+            Product product=productService.queryById(productid[i]);
+            products.add(product);
+        }
+        //释放资源
+        sqlSession.close();
+        // 返回订单项集合
+        return products;
+    }
+
+    /**
+     *删除订单项根据商品id和订单id
+     * @param productid
+     * @param ordersid
+     */
+    public void deleteOrderitemByproductidAndordersid(int productid,int ordersid){
+        // 获取Mapper
+        SqlSession sqlSession = sqlSessionFactory.openSession();
+        OrderitemMapper mapper = sqlSession.getMapper(OrderitemMapper.class);
+        //调用方法
+        mapper.deleteOrderitemByproductidAndordersid(productid,ordersid);
+        //提交事务和释放资源
+        sqlSession.commit();
+        sqlSession.close();
+    }
+    public Orderitem selectOrderitemByproductidAndordersid(int productid,int ordersid){
+        // 获取Mapper
+        SqlSession sqlSession = sqlSessionFactory.openSession();
+        OrderitemMapper mapper = sqlSession.getMapper(OrderitemMapper.class);
+        //调用方法
+        Orderitem orderitem = mapper.selectOrderitemByproductidAndordersid(productid, ordersid);
+        //释放资源
+        sqlSession.close();
+        // 返回订单项
+        return orderitem;
+    }
+
+    /**
+     *删除订单根据订单id
+     * @param id
+     */
+    public void deleteOrderByid(int id){
+        // 获取Mapper
+        SqlSession sqlSession = sqlSessionFactory.openSession();
+        OrdersMapper mapper = sqlSession.getMapper(OrdersMapper.class);
+        //调用方法删除订单
+        mapper.deleteOrderByid(id);
+        //提交事务和释放资源
+        sqlSession.commit();
+        sqlSession.close();
+    }
+    /**
+     *查询订单根据订单id
+     * @param id
+     */
+    public Orders selectOrderByid(int id){
+        // 获取Mapper
+        SqlSession sqlSession = sqlSessionFactory.openSession();
+        OrdersMapper mapper = sqlSession.getMapper(OrdersMapper.class);
+        //调用方法查询订单
+        Orders orders = mapper.selectOrderByid(id);
+        //释放资源
+        sqlSession.close();
+        // 返回订单
+        return orders;
+    }
+
+    /**
+     *删除订单内的订单项根据其订单id
+     * @param ordersid
+     */
+    public void deleteOrderitemByordersid(int ordersid){
+        // 获取Mapper
+        SqlSession sqlSession = sqlSessionFactory.openSession();
+        OrderitemMapper mapper = sqlSession.getMapper(OrderitemMapper.class);
+        //调用方法
+        mapper.deleteOrderitemByordersid(ordersid);
+        //提交事务和释放资源
+        sqlSession.commit();
+        sqlSession.close();
+    }
+
+    public List<Orders> selectOrderByusrid(int usrid){
+        // 获取Mapper
+        SqlSession sqlSession = sqlSessionFactory.openSession();
+        OrdersMapper mapper = sqlSession.getMapper(OrdersMapper.class);
+        //调用方法查询订单
+        List<Orders> orders = mapper.selectOrderByusrid(usrid);
+        //释放资源
+        sqlSession.close();
+        // 返回订单
+        return orders;
+    }
+}