添加 IntelliJ IDEA 项目配置文件

backend/config/database.js

@@ -0,0 +1,55 @@
+const { Sequelize } = require('sequelize');
+require('dotenv').config();
+
+// 数据库连接配置
+const sequelize = new Sequelize({
+  host: process.env.DB_HOST || '129.211.213.226',
+  port: process.env.DB_PORT || 9527,
+  database: process.env.DB_NAME || 'jiebandata',
+  username: process.env.DB_USER || 'root',
+  password: process.env.DB_PASSWORD || 'aiotAiot123!',
+  dialect: process.env.DB_DIALECT || 'mysql',
+  logging: process.env.NODE_ENV === 'development' ? console.log : false,
+  pool: {
+    max: 5,
+    min: 0,
+    acquire: 30000,
+    idle: 10000
+  },
+  define: {
+    timestamps: true,
+    underscored: true,
+    freezeTableName: true
+  },
+  timezone: '+08:00'
+});
+
+// 测试数据库连接
+const testConnection = async () => {
+  try {
+    await sequelize.authenticate();
+    console.log('✅ 数据库连接成功');
+    return true;
+  } catch (error) {
+    console.error('❌ 数据库连接失败:', error.message);
+    return false;
+  }
+};
+
+// 同步数据库模型
+const syncDatabase = async (options = {}) => {
+  try {
+    await sequelize.sync(options);
+    console.log('✅ 数据库同步成功');
+  } catch (error) {
+    console.error('❌ 数据库同步失败:', error);
+    throw error;
+  }
+};
+
+module.exports = {
+  sequelize,
+  testConnection,
+  syncDatabase,
+  Sequelize
+};