增加数据库

goldminer/backend/app.py

@@ -6,11 +6,24 @@ from flask_socketio import SocketIO, emit, join_room, leave_room
 import os
 import uuid
 from datetime import datetime
+from sqlalchemy.exc import OperationalError
+import logging
+
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger(__name__)
 
 app = Flask(__name__, static_folder='../frontend/dist')
 app.config['SECRET_KEY'] = os.environ.get('SECRET_KEY', 'dev_key_for_goldminer')
-app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///goldminer.db'
+
+# MySQL 数据库配置
+DB_USER = os.environ.get('DB_USER', 'goldminer')
+DB_PASSWORD = os.environ.get('DB_PASSWORD', 'goldminer')
+DB_HOST = os.environ.get('DB_HOST', 'localhost')
+DB_NAME = os.environ.get('DB_NAME', 'gold')
+
+app.config['SQLALCHEMY_DATABASE_URI'] = f'mysql+pymysql://{DB_USER}:{DB_PASSWORD}@{DB_HOST}/{DB_NAME}'
 app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
+app.config['SQLALCHEMY_ECHO'] = True # 开启SQL查询日志，方便调试
 
 CORS(app, supports_credentials=True, origins=['*'])  # Enable CORS with credentials for all origins
 db = SQLAlchemy(app)
@@ -67,9 +80,24 @@ class ChatMessage(db.Model):
     room = db.relationship('ChatRoom', backref=db.backref('messages', lazy=True))
     user = db.relationship('User', backref=db.backref('messages', lazy=True))
 
-# 创建数据库表
-with app.app_context():
-    db.create_all()
+# 检查数据库连接并创建表
+def init_db():
+    with app.app_context():
+        try:
+            logger.info("正在连接到MySQL数据库...")
+            # The act of creating tables will test the connection.
+            db.create_all()
+            logger.info("数据库连接成功，并且所有表都已（如果不存在则）创建。")
+        except OperationalError as e:
+            logger.error("无法连接到MySQL数据库。请检查您的数据库配置和服务器状态。")
+            logger.error(f"错误详情: {e}")
+            logger.error("请确保：")
+            logger.error("1. MySQL服务器正在运行。")
+            logger.error(f"2. 数据库 '{DB_NAME}' 已存在。 (例如：CREATE DATABASE {DB_NAME};)")
+            logger.error(f"3. 用户 '{DB_USER}' 已创建并拥有对 '{DB_NAME}' 数据库的权限。")
+            # The application will likely fail to start properly, which is intended.
+        except Exception as e:
+            logger.error(f"初始化数据库时发生未知错误: {e}")
 
 # 注册API
 @app.route('/api/register', methods=['POST'])
@@ -449,4 +477,7 @@ def handle_send_message(data):
     }, room=str(room_id))
 
 if __name__ == '__main__':
-    socketio.run(app, debug=True, host='0.0.0.0') 
+    # 在启动应用前初始化数据库
+    init_db()
+    # 使用 eventlet 或 gevent 来获得更好的性能
+    socketio.run(app, debug=True, host='0.0.0.0', port=5000) 

goldminer/backend/requirements.txt

@@ -4,3 +4,4 @@ flask-sqlalchemy
 flask-socketio
 werkzeug
 sqlalchemy<2.0.0
+PyMySQL 

goldminer/frontend/node_modules/.cache/babel-loader/24a99a6067e6f9dcee51a29de6aacc420e32f03ce0b1f2d1c2f35c39e72fbfce.json

@@ -0,0 +1 @@
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goldminer/frontend/node_modules/.cache/babel-loader/cc6ca55790ce06b0d3a38d6c82998638025d37e2b0d25b48b5724ab7c95f99fb.json

@@ -0,0 +1 @@
+{"ast":null,"code":"import { createApp } from 'vue';\nimport App from './App.vue';\nimport router from './router';\nimport axios from 'axios';\n\n// 配置axios默认URL，使用当前主机名而不是硬编码的localhost\nconst currentHost = window.location.hostname;\naxios.defaults.baseURL = process.env.NODE_ENV === 'production' ? '' : `http://${currentHost}:5000`;\nconst app = createApp(App);\napp.use(router);\napp.mount('#app');","map":{"version":3,"names":["createApp","App","router","axios","currentHost","window","location","hostname","defaults","baseURL","process","env","NODE_ENV","app","use","mount"],"sources":["D:/学习/网络应用程序开发/pdf/goldminer/frontend/src/main.js"],"sourcesContent":["import { createApp } from 'vue'\r\nimport App from './App.vue'\r\nimport router from './router'\r\nimport axios from 'axios'\r\n\r\n// 配置axios默认URL，使用当前主机名而不是硬编码的localhost\r\nconst currentHost = window.location.hostname\r\naxios.defaults.baseURL = process.env.NODE_ENV === 'production' \r\n  ? '' \r\n  : `http://${currentHost}:5000`\r\n\r\nconst app = createApp(App)\r\napp.use(router)\r\napp.mount('#app') "],"mappings":"AAAA,SAASA,SAAS,QAAQ,KAAK;AAC/B,OAAOC,GAAG,MAAM,WAAW;AAC3B,OAAOC,MAAM,MAAM,UAAU;AAC7B,OAAOC,KAAK,MAAM,OAAO;;AAEzB;AACA,MAAMC,WAAW,GAAGC,MAAM,CAACC,QAAQ,CAACC,QAAQ;AAC5CJ,KAAK,CAACK,QAAQ,CAACC,OAAO,GAAGC,OAAO,CAACC,GAAG,CAACC,QAAQ,KAAK,YAAY,GAC1D,EAAE,GACF,UAAUR,WAAW,OAAO;AAEhC,MAAMS,GAAG,GAAGb,SAAS,CAACC,GAAG,CAAC;AAC1BY,GAAG,CAACC,GAAG,CAACZ,MAAM,CAAC;AACfW,GAAG,CAACE,KAAK,CAAC,MAAM,CAAC","ignoreList":[]},"metadata":{},"sourceType":"module","externalDependencies":[]}

goldminer/frontend/node_modules/.cache/eslint/123ee647.json

@@ -1 +1 @@
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goldminer/start.bat

@@ -65,7 +65,7 @@ echo ===================================
 echo Starting Backend Server...
 echo Backend will listen on all network interfaces (0.0.0.0:5000)
 echo ===================================
-python -c "from app import socketio, app; socketio.run(app, host='0.0.0.0', port=5000, debug=True)"
+python app.py
 pause
 if "%1"=="" goto menu
 exit /b