ADD file via upload

flower_back/src/main/java/com/example/flower/service/CartService.java

@@ -0,0 +1,60 @@
+package com.example.flower.service;
+
+import com.example.flower.entity.Cart;
+import com.example.flower.mapper.CartMapper;
+import com.example.flower.service.impl.CartServiceImpl;
+import com.github.pagehelper.PageHelper;
+import com.github.pagehelper.PageInfo;
+import jakarta.annotation.Resource;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+public class CartService implements CartServiceImpl {
+    @Resource
+    private CartMapper cartMapper;
+
+    @Override
+    public PageInfo<Cart> cartList(int page, int page_size,int user_id) {
+        PageHelper.startPage(page,page_size);
+        return new PageInfo<>(cartMapper.cartList(user_id));
+    }
+    @Override
+    public PageInfo<Cart> cartListByQuery(int page,int page_size,int user_id,String flower_name){
+        PageHelper.startPage(page,page_size);
+        return new PageInfo<>(cartMapper.cartListByQuery(user_id,flower_name));
+    }
+    @Override
+    public void cartAdd(Cart cart){
+        cartMapper.cartAdd(cart);
+    }
+    @Override
+    public int cartDeletePer(int cart_id){
+        return cartMapper.cartDeletePer(cart_id);
+    }
+    @Override
+    public int cartDeleteMul(int[] cart_ids){
+        return cartMapper.cartDeleteMul(cart_ids);
+    }
+    @Override
+    public Cart cartInfo(int cart_id){
+        return cartMapper.cartInfo(cart_id);
+    }
+    @Override
+    public int cartModify(Cart cart){
+        return cartMapper.cartModify(cart);
+    }
+    @Override
+    public int cartModify_num(Cart cart){
+        return cartMapper.cartModify_num(cart);
+    }
+    @Override
+    public List<Cart> cartRepeat(int user_id, int flower_id){
+        return cartMapper.cartRepeat(user_id,flower_id);
+    }
+    @Override
+    public int cartNum(int user_id){
+        return cartMapper.cartNum(user_id);
+    }
+}