diff --git a/backend/src/api/config.ts b/backend/src/api/config.ts
index a85e4d9..5c929be 100644
--- a/backend/src/api/config.ts
+++ b/backend/src/api/config.ts
@@ -136,7 +136,7 @@ router.post('/save', async (req, res) => {
     // 保存配置到文件
     const fs = require('fs');
     const path = require('path');
-    const configPath = path.join(__dirname, '../../config.json');
+    const configPath = path.join(__dirname, '../../../config.json');
     
     fs.writeFileSync(configPath, JSON.stringify(config, null, 2));
     
@@ -153,7 +153,7 @@ router.get('/get', async (req, res) => {
     // 从文件读取配置
     const fs = require('fs');
     const path = require('path');
-    const configPath = path.join(__dirname, '../../config.json');
+    const configPath = path.join(__dirname, '../../../config.json');
     
     let config = {};
     if (fs.existsSync(configPath)) {
diff --git a/backend/src/config/index.ts b/backend/src/config/index.ts
index 8f8d593..e323633 100644
--- a/backend/src/config/index.ts
+++ b/backend/src/config/index.ts
@@ -4,13 +4,44 @@ import path from 'path';
 
 dotenv.config();
 
+// 配置文件类型定义
+interface ConfigFile {
+  server?: {
+    port?: number;
+  };
+  security?: {
+    jwtSecret?: string;
+    rateLimit?: {
+      windowMs?: number;
+      max?: number;
+    };
+    cors?: {
+      origin?: string;
+      methods?: string[];
+      allowedHeaders?: string[];
+    };
+  };
+  database?: {
+    postgreSQL?: {
+      host?: string;
+      port?: string;
+      username?: string;
+      password?: string;
+      database?: string;
+    };
+  };
+  dataSource?: any;
+}
+
 // 从文件读取配置
-let fileConfig = {};
+let fileConfig: ConfigFile = {};
 try {
   const configPath = path.join(__dirname, '../../../config.json');
   if (fs.existsSync(configPath)) {
     const configData = fs.readFileSync(configPath, 'utf8');
     fileConfig = JSON.parse(configData);
+    console.log('已读取配置文件:', configPath);
+    console.log('配置文件内容:', fileConfig);
   }
 } catch (error) {
   console.error('读取配置文件失败:', error);
@@ -43,38 +74,48 @@ export const config = {
     methods: fileConfig.security?.cors?.methods || ['GET', 'POST', 'PUT', 'DELETE', 'OPTIONS'],
     allowedHeaders: fileConfig.security?.cors?.allowedHeaders || ['Content-Type', 'Authorization']
   },
-  dataSource: fileConfig.dataSource || {
-    test: {
-      enabled: true,
-      timeout: 10000,
-      retries: 3,
-      refreshInterval: 60000
-    },
-    tqsdk: {
-      enabled: true,
-      apiKey: '',
-      apiSecret: '',
-      username: '',
-      password: '',
-      timeout: 30000,
-      retries: 3,
-      maxConnections: 5
-    },
-    wind: {
-      enabled: false,
-      apiKey: '',
-      apiSecret: '',
-      url: 'https://api.wind.com.cn',
-      timeout: 30000,
-      retries: 3
-    },
-    sina: {
-      enabled: false,
-      url: 'https://finance.sina.com.cn',
-      timeout: 10000,
-      retries: 3,
-      refreshInterval: 60000
-    },
-    defaultDataSource: 'tqsdk'
-  }
+  dataSource: (() => {
+    const dataSourceConfig = fileConfig.dataSource || {
+      test: {
+        enabled: true,
+        timeout: 10000,
+        retries: 3,
+        refreshInterval: 60000
+      },
+      tqsdk: {
+        enabled: true,
+        apiKey: '',
+        apiSecret: '',
+        username: '',
+        password: '',
+        timeout: 30000,
+        retries: 3,
+        maxConnections: 5
+      },
+      wind: {
+        enabled: false,
+        apiKey: '',
+        apiSecret: '',
+        url: 'https://api.wind.com.cn',
+        timeout: 30000,
+        retries: 3
+      },
+      sina: {
+        enabled: false,
+        url: 'https://finance.sina.com.cn',
+        timeout: 10000,
+        retries: 3,
+        refreshInterval: 60000
+      },
+      defaultDataSource: 'tqsdk'
+    };
+    console.log('数据源配置初始化完成:', {
+      hasFileConfig: !!fileConfig.dataSource,
+      enabledDataSources: Object.keys(dataSourceConfig).filter(key => 
+        key !== 'defaultDataSource' && dataSourceConfig[key].enabled
+      ),
+      defaultDataSource: dataSourceConfig.defaultDataSource
+    });
+    return dataSourceConfig;
+  })()
 };
\ No newline at end of file
diff --git a/backend/src/services/datasource/DataSourceFactory.ts b/backend/src/services/datasource/DataSourceFactory.ts
index 30d8e1b..ce98356 100644
--- a/backend/src/services/datasource/DataSourceFactory.ts
+++ b/backend/src/services/datasource/DataSourceFactory.ts
@@ -16,6 +16,7 @@ export class DataSourceFactory {
 
   // 获取数据源实例
   static async getDataSource(type: DataSourceType = DataSourceType.TQSDK, config: any = {}): Promise<DataSource> {
+    console.log('获取数据源实例:', type);
     if (!this.dataSources.has(type)) {
       let dataSource: DataSource;
       
diff --git a/backend/src/services/datasource/TQDataSource.ts b/backend/src/services/datasource/TQDataSource.ts
index ce8c777..6da52c9 100644
--- a/backend/src/services/datasource/TQDataSource.ts
+++ b/backend/src/services/datasource/TQDataSource.ts
@@ -1,9 +1,10 @@
 // TQSDK数据源实现
 import { DataSource } from './DataSource';
-import { TqSdk, TqAccount } from 'tqsdk';
+import TqSdk from 'tqsdk';
+import TqAccount from 'tqsdk';
 
 export class TQDataSource implements DataSource {
-  private tq: TqSdk | null = null;
+  private tq: any = null;
   private initialized: boolean = false;
   private config: {
     username?: string;
@@ -174,7 +175,9 @@ export class TQDataSource implements DataSource {
 
   async close(): Promise<void> {
     if (this.tq) {
-      this.tq.close();
+      if (typeof this.tq.close === 'function') {
+        this.tq.close();
+      }
       this.tq = null;
       this.initialized = false;
       console.log('TQSDK数据源已关闭');
diff --git a/backend/src/services/marketService.ts b/backend/src/services/marketService.ts
index 75435e2..fd3b308 100644
--- a/backend/src/services/marketService.ts
+++ b/backend/src/services/marketService.ts
@@ -14,7 +14,7 @@ export const fetchMarketOverview = async () => {
   try {
     // 获取数据源配置
     const dataSourceConfig = getDataSourceConfig();
-    
+    console.log('获取数据源配置:', dataSourceConfig);
     // 检查是否有可用的数据源
     const hasAvailableDataSource = dataSourceConfig.tqsdk?.enabled || dataSourceConfig.test?.enabled;
     if (!hasAvailableDataSource) {
@@ -43,7 +43,7 @@ export const fetchMarketOverview = async () => {
               winRate: Math.floor(Math.random() * 50) + 30, // 模拟胜率
               atr: +(Math.random() * 5 + 0.5).toFixed(2), // 模拟ATR
               adx: Math.floor(Math.random() * 60) + 10, // 模拟ADX
-              adxStatus: adx => {
+              adxStatus: (adx: number) => {
                 if (adx < 20) return '无趋势/震荡';
                 if (adx < 40) return '弱趋势';
                 return '强趋势';
@@ -156,7 +156,7 @@ export const fetchMarketDetail = async (symbol: string) => {
           winRate: Math.floor(Math.random() * 50) + 30,
           atr: +(Math.random() * 5 + 0.5).toFixed(2),
           adx: Math.floor(Math.random() * 60) + 10,
-          adxStatus: adx => {
+          adxStatus: (adx: number) => {
             if (adx < 20) return '无趋势/震荡';
             if (adx < 40) return '弱趋势';
             return '强趋势';
diff --git a/backend/config.json b/config.json
similarity index 100%
rename from backend/config.json
rename to config.json