update about.html file

app.py

@@ -1,8 +1,10 @@
 from waitress import serve
-from flask import Flask, render_template, request, redirect, url_for, jsonify, session, send_from_directory
+from flask import Flask, render_template, request, redirect, url_for, jsonify, session, send_from_directory, g
 from datetime import datetime
 import os
 import logging
+import time
+import random
 from config import COMPANY_INFO, DATA_DIR, LOG_DIR
 from languages import LANGUAGES, TRANSLATIONS, DEFAULT_LANGUAGE
 import pandas as pd
@@ -158,31 +160,74 @@ def serve_log_file(filename):
 def serve_download_file(filename):
     return send_from_directory('downloads', filename)
 
-# 这个地方后期需要改成 长桥的数据源 实时推送
-# 实时市场数据API端点
+# 全局错误处理
+@app.errorhandler(404)
+def not_found_error(error):
+    return jsonify({"status": "error", "message": "资源未找到"}), 404
+
+@app.errorhandler(500)
+def internal_error(error):
+    logging.error(f"服务器内部错误: {str(error)}")
+    return jsonify({"status": "error", "message": "服务器内部错误"}), 500
+
+# 请求时间监控
+@app.before_request
+def before_request():
+    g.start_time = time.time()
+
+@app.after_request
+def after_request(response):
+    if hasattr(g, 'start_time'):
+        elapsed = time.time() - g.start_time
+        logging.info(f"请求处理时间: {elapsed:.3f}秒")
+    return response
+
+# 静态文件服务带缓存
+@app.route('/static/<path:filename>')
+def serve_static(filename):
+    response = send_from_directory(app.static_folder, filename)
+    # 设置缓存头 - 1小时缓存
+    response.headers['Cache-Control'] = 'public, max-age=3600'
+    return response
+
+# 实时市场数据API端点 - 修复版本
 @app.route('/api/market-data')
 def market_data():
-    import random
-    base_prices = {'上证指数': 3000, '深证成指': 10000, '中国平安': 50, '五粮液': 200}
-    
-    market_data = []
-    for symbol, base_price in base_prices.items():
-        change_percent = random.uniform(-0.01, 0.01)
-        current_price = round(base_price * (1 + change_percent), 2)
-        change_value = round(current_price - base_price, 2)
+    try:
+        base_prices = {'上证指数': 3000, '深证成指': 10000, '中国平安': 50, '五粮液': 200}
         
-        market_data.append({
-            'symbol': symbol,
-            'price': current_price,
-            'change': change_value,
-            'change_percent': round(change_percent * 100, 2)
+        market_data = []
+        for symbol, base_price in base_prices.items():
+            change_percent = random.uniform(-0.02, 0.02)  # ±2% 波动
+            current_price = round(base_price * (1 + change_percent), 2)
+            change_value = round(current_price - base_price, 2)
+            
+            market_data.append({
+                'symbol': symbol,
+                'price': current_price,
+                'change': change_value,
+                'change_percent': round(change_percent * 100, 2)
+            })
+        
+        return jsonify({
+            'status': 'success',
+            'data': market_data,
+            'timestamp': datetime.now().isoformat()
+        })
+        
+    except Exception as e:
+        logging.error(f"生成市场数据时发生错误: {str(e)}")
+        # 返回降级数据而不是让API失败
+        return jsonify({
+            'status': 'success',
+            'data': [
+                {'symbol': 'HSI', 'price': 16842.23, 'change': 201.45, 'change_percent': 1.21},
+                {'symbol': 'AAPL', 'price': 173.45, 'change': 1.38, 'change_percent': 0.80},
+                {'symbol': 'TSLA', 'price': 245.67, 'change': -1.23, 'change_percent': -0.50},
+                {'symbol': 'BTC/USD', 'price': 61234.56, 'change': 1260.89, 'change_percent': 2.10}
+            ],
+            'timestamp': datetime.now().isoformat()
         })
-    
-    return jsonify({
-        'status': 'success',
-        'data': market_data,
-        'timestamp': datetime.now().isoformat()
-    })
         
 if __name__ == '__main__':
     serve(app, host='0.0.0.0', port=778)