Initial commit

2025-09-08 16:24:41 +08:00
commit 9142055732
4 changed files with 331 additions and 0 deletions
--- a/.env
+++ b/.env
@@ -0,0 +1,5 @@
+DB_HOST=mysql.theaken.com
+DB_PORT=33306
+DB_NAME=db_A021
+DB_USER=A021
+DB_PASSWORD=wJk1O5qtP7pf
--- a/Prompt.txt
+++ b/Prompt.txt
@@ -0,0 +1,35 @@
+請執行hw3_Products_lowMargin.md prompt 內容
+
+
+
+您一是資深程式設計師，請根據以下需求幫我產生一段 Python 程式碼，能夠連線到資料庫一個 pizzas table及新增10筆資料。
+資料庫資訊：請參考Z:\E\AI\AI_Coding\DB>.env。
+需求：
+1.create pizzas TABLE，pizzas table 的欄位有：name(名稱)、size(尺寸)、price(價格)
+2.請您在產生10筆模擬資料新增到 pizzas table。
+3.執行成功後，印出「pizzas 的模擬資料！」。
+4.請將產生出的 Python 儲存於 Z:\E\AI\AI_Coding\20250908> 路徑下。
+
+
+--------------------------------------------------------------------------------------------------------------------------
+
+請產生一支可直接執行的 Flask API 伺服器，需求：
+- 使用 mysql.connector 連線
+
+資料庫資訊：請參考Z:\E\AI\AI_Coding\DB>.env。
+TABLE = users
+
+- 路由：
+  - GET    /v1/users：支援 ?min_age、?max_age、?page、?limit，要多回傳 {meta}
+  - GET    /v1/users/<id>：找不到回 404
+  - POST   /v1/users：接收 JSON {name,email,age}，欄位驗證，成功回 201 並回新資料
+  - PATCH  /v1/users/<id>：可更新任一欄位（name/email/age），成功回 200 回更新後資料
+  - DELETE /v1/users/<id>：成功回 204
+    
+- 所有寫入請用參數化查詢避免 SQL 注入
+- 統一格式 { status,code,message,data }
+- 統一錯誤格式 {status:"error", code, message}
+- 啟用 CORS（允許本機前端）
+
+
+
--- a/create_and_insert_pizzas.py
+++ b/create_and_insert_pizzas.py
@@ -0,0 +1,60 @@
+import mysql.connector
+from mysql.connector import Error
+import random
+
+# 資料庫連線資訊
+db_config = {
+    'host': 'mysql.theaken.com',
+    'port': 33306,
+    'database': 'db_A021',
+    'user': 'A021',
+    'password': 'wJk1O5qtP7pf'
+}
+
+# 披薩名稱列表
+pizza_names = [
+    '瑪格麗特', '夏威夷', '海鮮總匯', '燻雞蘑菇', '蔬菜總匯',
+    '德式香腸', '四種起司', '韓式泡菜', '泰式酸辣', 'BBQ烤肉'
+]
+
+# 披薩尺寸列表
+pizza_sizes = ['S', 'M', 'L', 'XL']
+
+def create_and_insert_pizzas():
+    try:
+        # 建立資料庫連線
+        connection = mysql.connector.connect(**db_config)
+        cursor = connection.cursor()
+
+        # 創建pizzas表
+        cursor.execute("""
+        CREATE TABLE IF NOT EXISTS pizzas (
+            id INT AUTO_INCREMENT PRIMARY KEY,
+            name VARCHAR(50) NOT NULL,
+            size VARCHAR(10) NOT NULL,
+            price INT NOT NULL
+        )
+        """)
+
+        # 新增10筆披薩資料
+        for i in range(10):
+            name = random.choice(pizza_names)
+            size = random.choice(pizza_sizes)
+            price = random.randint(100, 500)
+            
+            query = "INSERT INTO pizzas (name, size, price) VALUES (%s, %s, %s)"
+            cursor.execute(query, (name, size, price))
+        
+        # 提交交易
+        connection.commit()
+        print("pizzas 的模擬資料！")
+        
+    except Error as e:
+        print(f"資料庫錯誤: {e}")
+    finally:
+        if connection.is_connected():
+            cursor.close()
+            connection.close()
+
+if __name__ == "__main__":
+    create_and_insert_pizzas()
--- a/pizza_api.py
+++ b/pizza_api.py
@@ -0,0 +1,231 @@
+from flask import Flask, request, jsonify
+from flask_cors import CORS
+import mysql.connector
+from mysql.connector import Error
+
+app = Flask(__name__)
+CORS(app)
+
+# 資料庫連線資訊
+db_config = {
+    'host': 'mysql.theaken.com',
+    'port': 33306,
+    'database': 'db_A021',
+    'user': 'A021',
+    'password': 'wJk1O5qtP7pf'
+}
+
+def get_db_connection():
+    try:
+        connection = mysql.connector.connect(**db_config)
+        return connection
+    except Error as e:
+        print(f"資料庫連線錯誤: {e}")
+        return None
+
+@app.route('/v1/pizzas', methods=['GET'])
+def get_pizzas():
+    min_id = request.args.get('min_id', type=int)
+    max_id = request.args.get('max_id', type=int)
+    page = request.args.get('page', default=1, type=int)
+    limit = request.args.get('limit', default=10, type=int)
+    offset = (page - 1) * limit
+
+    connection = get_db_connection()
+    if not connection:
+        return jsonify({"status": "error", "code": 500, "message": "資料庫連線失敗"}), 500
+
+    try:
+        cursor = connection.cursor(dictionary=True)
+        
+        # 基礎查詢
+        query = "SELECT * FROM pizzas WHERE 1=1"
+        params = []
+        
+        # 添加篩選條件
+        if min_id is not None:
+            query += " AND id >= %s"
+            params.append(min_id)
+        if max_id is not None:
+            query += " AND id <= %s"
+            params.append(max_id)
+        
+        # 計算總數
+        count_query = "SELECT COUNT(*) as total FROM (" + query + ") as t"
+        cursor.execute(count_query, params)
+        total = cursor.fetchone()['total']
+        
+        # 添加分頁
+        query += " LIMIT %s OFFSET %s"
+        params.extend([limit, offset])
+        
+        cursor.execute(query, params)
+        pizzas = cursor.fetchall()
+        
+        meta = {
+            "total": total,
+            "page": page,
+            "limit": limit,
+            "has_next": (page * limit) < total
+        }
+        
+        return jsonify({
+            "status": "success",
+            "code": 200,
+            "message": "",
+            "data": pizzas,
+            "meta": meta
+        })
+    except Error as e:
+        return jsonify({"status": "error", "code": 500, "message": str(e)}), 500
+    finally:
+        if connection.is_connected():
+            cursor.close()
+            connection.close()
+
+@app.route('/v1/pizzas/<int:pizza_id>', methods=['GET'])
+def get_pizza(pizza_id):
+    connection = get_db_connection()
+    if not connection:
+        return jsonify({"status": "error", "code": 500, "message": "資料庫連線失敗"}), 500
+
+    try:
+        cursor = connection.cursor(dictionary=True)
+        cursor.execute("SELECT * FROM pizzas WHERE id = %s", (pizza_id,))
+        pizza = cursor.fetchone()
+        
+        if not pizza:
+            return jsonify({"status": "error", "code": 404, "message": "披薩不存在"}), 404
+            
+        return jsonify({"status": "success", "code": 200, "message": "", "data": pizza})
+    except Error as e:
+        return jsonify({"status": "error", "code": 500, "message": str(e)}), 500
+    finally:
+        if connection.is_connected():
+            cursor.close()
+            connection.close()
+
+@app.route('/v1/pizzas', methods=['POST'])
+def create_pizza():
+    data = request.get_json()
+    
+    # 驗證必要欄位
+    if not all(key in data for key in ['name', 'size', 'price']):
+        return jsonify({"status": "error", "code": 400, "message": "缺少必要欄位: name, size, price"}), 400
+    
+    connection = get_db_connection()
+    if not connection:
+        return jsonify({"status": "error", "code": 500, "message": "資料庫連線失敗"}), 500
+
+    try:
+        cursor = connection.cursor(dictionary=True)
+        query = "INSERT INTO pizzas (name, size, price) VALUES (%s, %s, %s)"
+        cursor.execute(query, (data['name'], data['size'], data['price']))
+        connection.commit()
+        
+        # 獲取新建立的披薩
+        pizza_id = cursor.lastrowid
+        cursor.execute("SELECT * FROM pizzas WHERE id = %s", (pizza_id,))
+        new_pizza = cursor.fetchone()
+        
+        return jsonify({
+            "status": "success",
+            "code": 201,
+            "message": "披薩建立成功",
+            "data": new_pizza
+        }), 201
+    except Error as e:
+        return jsonify({"status": "error", "code": 500, "message": str(e)}), 500
+    finally:
+        if connection.is_connected():
+            cursor.close()
+            connection.close()
+
+@app.route('/v1/pizzas/<int:pizza_id>', methods=['PATCH'])
+def update_pizza(pizza_id):
+    # 從URL參數獲取要更新的欄位
+    update_name = request.args.get('name')
+    update_size = request.args.get('size')
+    update_price = request.args.get('price', type=float)
+    
+    connection = get_db_connection()
+    if not connection:
+        return jsonify({"status": "error", "code": 500, "message": "資料庫連線失敗"}), 500
+
+    try:
+        cursor = connection.cursor(dictionary=True)
+        
+        # 檢查披薩是否存在
+        cursor.execute("SELECT * FROM pizzas WHERE id = %s", (pizza_id,))
+        pizza = cursor.fetchone()
+        if not pizza:
+            return jsonify({"status": "error", "code": 404, "message": "披薩不存在"}), 404
+        
+        # 構建更新語句
+        set_clauses = []
+        params = []
+        
+        if update_name is not None:
+            set_clauses.append("name = %s")
+            params.append(update_name)
+        if update_size is not None:
+            set_clauses.append("size = %s")
+            params.append(update_size)
+        if update_price is not None:
+            set_clauses.append("price = %s")
+            params.append(update_price)
+        
+        # 如果沒有提供任何可更新參數
+        if not set_clauses:
+            return jsonify({"status": "error", "code": 400, "message": "至少需要提供一個更新參數: name, size, price"}), 400
+        
+        query = "UPDATE pizzas SET " + ", ".join(set_clauses) + " WHERE id = %s"
+        params.append(pizza_id)
+        
+        cursor.execute(query, params)
+        connection.commit()
+        
+        # 獲取更新後的披薩
+        cursor.execute("SELECT * FROM pizzas WHERE id = %s", (pizza_id,))
+        updated_pizza = cursor.fetchone()
+        
+        return jsonify({
+            "status": "success",
+            "code": 200,
+            "message": "披薩更新成功",
+            "data": updated_pizza
+        })
+    except Error as e:
+        return jsonify({"status": "error", "code": 500, "message": str(e)}), 500
+    finally:
+        if connection.is_connected():
+            cursor.close()
+            connection.close()
+
+@app.route('/v1/pizzas/<int:pizza_id>', methods=['DELETE'])
+def delete_pizza(pizza_id):
+    connection = get_db_connection()
+    if not connection:
+        return jsonify({"status": "error", "code": 500, "message": "資料庫連線失敗"}), 500
+
+    try:
+        cursor = connection.cursor()
+        
+        # 檢查披薩是否存在
+        cursor.execute("SELECT id FROM pizzas WHERE id = %s", (pizza_id,))
+        if not cursor.fetchone():
+            return jsonify({"status": "error", "code": 404, "message": "披薩不存在"}), 404
+        
+        cursor.execute("DELETE FROM pizzas WHERE id = %s", (pizza_id,))
+        connection.commit()
+        
+        return '', 204
+    except Error as e:
+        return jsonify({"status": "error", "code": 500, "message": str(e)}), 500
+    finally:
+        if connection.is_connected():
+            cursor.close()
+            connection.close()
+
+if __name__ == '__main__':
+    app.run(debug=True)