From 717dddbeba9d1a31e488118833c295e0c0726470 Mon Sep 17 00:00:00 2001
From: nxist2202005025 <1970759842@qq.com>
Date: Tue, 11 Jun 2024 09:38:16 +0800
Subject: [PATCH] ADD file via upload

---
 dishDAOimp.java | 98 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 dishDAOimp.java

diff --git a/dishDAOimp.java b/dishDAOimp.java
new file mode 100644
index 0000000..e781345
--- /dev/null
+++ b/dishDAOimp.java
@@ -0,0 +1,98 @@
+package imp;
+
+import DAO.dishDAO;
+import model.dish;
+import java.sql.*;
+import java.util.ArrayList;
+import java.util.List;
+
+public class dishDAOimp implements dishDAO {
+
+    @Override
+    public void insert(dish dish) {
+        String sql = "INSERT INTO dishes (dishID, dishName, description, price, image) VALUES (?, ?, ?, ?, ?)";
+        try (Connection conn = JDBCutil.getConnection();
+             PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setInt(1, dish.getDishID());
+            pstmt.setString(2, dish.getDishName());
+            pstmt.setString(3, dish.getDescription());
+            pstmt.setInt(4, dish.getPrice());
+            pstmt.setString(5, dish.getImage());
+            pstmt.executeUpdate();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public void delete(dish dish) {
+        String sql = "DELETE FROM dishes WHERE dishID = ?";
+        try (Connection conn = JDBCutil.getConnection();
+             PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setInt(1, dish.getDishID());
+            pstmt.executeUpdate();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public void update(dish dish) {
+        String sql = "UPDATE dishes SET dishName = ?, description = ?, price = ?, image = ? WHERE dishID = ?";
+        try (Connection conn = JDBCutil.getConnection();
+             PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setString(1, dish.getDishName());
+            pstmt.setString(2, dish.getDescription());
+            pstmt.setInt(3, dish.getPrice());
+            pstmt.setString(4, dish.getImage());
+            pstmt.setInt(5, dish.getDishID());
+            pstmt.executeUpdate();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public dish findById(int id) {
+        String sql = "SELECT * FROM dishes WHERE dishID = ?";
+        try (Connection conn = JDBCutil.getConnection();
+             PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setInt(1, id);
+            ResultSet rs = pstmt.executeQuery();
+            if (rs.next()) {
+                dish newDish = new dish();
+                newDish.setDishID(rs.getInt("dishID"));
+                newDish.setDishName(rs.getString("dishName"));
+                newDish.setDescription(rs.getString("description"));
+                newDish.setPrice(rs.getInt("price"));
+                newDish.setImage(rs.getString("image"));
+                return newDish;
+            }
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    @Override
+    public List<dish> findAll() {
+        String sql = "SELECT * FROM dishes";
+        List<dish> dishes = new ArrayList<>();
+        try (Connection conn = JDBCutil.getConnection();
+             Statement stmt = conn.createStatement();
+             ResultSet rs = stmt.executeQuery(sql)) {
+            while (rs.next()) {
+                dish newDish = new dish();
+                newDish.setDishID(rs.getInt("dishID"));
+                newDish.setDishName(rs.getString("dishName"));
+                newDish.setDescription(rs.getString("description"));
+                newDish.setPrice(rs.getInt("price"));
+                newDish.setImage(rs.getString("image"));
+                dishes.add(newDish);
+            }
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+        return dishes;
+    }
+}
\ No newline at end of file