diff --git a/src/core/__init__.py b/src/core/__init__.py
new file mode 100644
index 0000000..9655e1c
--- /dev/null
+++ b/src/core/__init__.py
@@ -0,0 +1 @@
+# Core module for application state and schedulers 
\ No newline at end of file
diff --git a/src/core/app_state.py b/src/core/app_state.py
new file mode 100644
index 0000000..b450394
--- /dev/null
+++ b/src/core/app_state.py
@@ -0,0 +1,148 @@
+"""
+应用核心状态管理和基础交易逻辑。
+
+包含全局交易实例、日志记录器以及登录/登出等核心功能。
+"""
+import time
+from typing import Optional
+
+from ..config import Config  # 使用相对导入
+from ..logger_config import get_logger
+from ..real.xt_trader import XtTrader
+from ..simulation.simulation_trader import SimulationTrader
+from ..base_trader import BaseTrader
+from ..real.real_trader_manager import RealTraderManager # 确保导入
+
+# 获取日志记录器
+logger = get_logger("app_state") # 可以考虑是否需要区分 logger 名称
+
+# 全局交易实例（采用单例模式）
+_trader_instance: Optional[BaseTrader] = None
+_real_trader_manager_instance: Optional[RealTraderManager] = None
+
+
+def is_real_mode() -> bool:
+    """检查当前是否为实盘交易模式。"""
+    return not Config.SIMULATION_MODE
+
+
+def on_connect_failed() -> None:
+    """交易连接失败的回调函数。"""
+    logger.critical("交易系统连接失败，API将返回错误状态")
+
+
+def get_trader() -> Optional[BaseTrader]:
+    """
+    获取交易实例（模拟或实盘）。
+
+    根据配置和当前时间（是否为交易日/交易时间），返回合适的交易实例。
+    在非交易日或非交易时间（实盘模式下），会返回一个临时的、标记为连接失败的实例。
+    
+    Returns:
+        Optional[BaseTrader]: 交易实例或 None。
+    """
+    global _trader_instance
+
+    if is_real_mode() and _trader_instance is None:
+        if not BaseTrader.is_trading_date():
+            temp_trader = XtTrader(connect_failed_callback=on_connect_failed)
+            temp_trader.connection_failed = True
+            temp_trader.connection_error_message = "当前为非交易日，交易系统未连接"
+            return temp_trader
+        
+        if not BaseTrader.is_trading_time():
+            temp_trader = XtTrader(connect_failed_callback=on_connect_failed)
+            temp_trader.connection_failed = True
+            temp_trader.connection_error_message = "当前为非交易时间，交易系统未连接"
+            return temp_trader
+            
+    return _trader_instance
+
+
+def get_real_trader_manager() -> Optional[RealTraderManager]:
+    """
+    获取实盘交易管理器单例。
+
+    如果当前为模拟模式，则返回 None。
+    Returns:
+        Optional[RealTraderManager]: 实盘交易管理器实例或 None。
+    """
+    global _real_trader_manager_instance
+
+    if _real_trader_manager_instance is None:
+        current_trader = get_trader()
+        if Config.SIMULATION_MODE:
+            _real_trader_manager_instance = None
+        elif current_trader is not None: 
+             _real_trader_manager_instance = RealTraderManager(current_trader)
+        else:
+            _real_trader_manager_instance = None
+            
+    return _real_trader_manager_instance
+
+
+def login() -> bool:
+    """
+    初始化并登录交易实例。
+
+    会根据配置（实盘/模拟）创建相应的交易实例并尝试登录。
+    Returns:
+        bool: 登录是否成功。
+    Raises:
+        Exception: 如果在实盘模式下创建实例失败。
+    """
+    global _trader_instance
+    
+    try:
+        if _trader_instance is not None and is_real_mode():
+            # _trader_instance is BaseTrader or its child, which should have logout
+            _trader_instance.logout() 
+            _trader_instance = None
+            
+        _trader_instance = SimulationTrader() if Config.SIMULATION_MODE else XtTrader(connect_failed_callback=on_connect_failed)
+        
+        logger.info("开始登录")
+        
+        if Config.SIMULATION_MODE:
+            return True
+            
+        # _trader_instance is XtTrader here, which has login
+        login_success = _trader_instance.login() 
+        
+        if login_success:
+            # _trader_instance is XtTrader here
+            result = _trader_instance.get_balance() 
+            if result and result.get("account_id") is not None:
+                logger.info(f"查询余额成功: {result}")
+                return True
+            else:
+                logger.error(f"登录成功但查询余额失败: {result}")
+                if _trader_instance:
+                    _trader_instance.connection_failed = True # BaseTrader property
+                    _trader_instance.last_reconnect_time = time.time() # BaseTrader property
+                    _trader_instance.notify_connection_failure("登录成功但查询余额失败") # BaseTrader method
+                return False
+        else:
+            logger.error("登录失败")
+            return False
+    except Exception as e:
+        logger.error(f"登录初始化异常: {str(e)}")
+        if is_real_mode() and _trader_instance is not None:
+            _trader_instance.connection_failed = True
+            _trader_instance.last_reconnect_time = time.time()
+            _trader_instance.notify_connection_failure(f"登录初始化异常: {str(e)}")
+            return False
+        raise Exception(f"登录失败，无法创建交易实例: {e}")
+
+
+def logout() -> None:
+    """登出并销毁交易实例。"""
+    global _trader_instance
+    
+    if _trader_instance is not None:
+        _trader_instance.logout()
+        logger.info("登出成功")
+        
+        if is_real_mode():
+            _trader_instance = None
+            logger.info("交易实例已销毁") 
\ No newline at end of file
diff --git a/src/core/scheduler_tasks.py b/src/core/scheduler_tasks.py
new file mode 100644
index 0000000..bd8c69e
--- /dev/null
+++ b/src/core/scheduler_tasks.py
@@ -0,0 +1,111 @@
+"""
+定时任务管理和执行。
+
+本模块负责定义、调度和执行所有后台定时任务，
+例如每日自动登录/登出、QMT重启以及连接状态检查等。
+"""
+import schedule
+import threading
+import time
+import subprocess
+import os
+
+from ..config import Config
+from ..logger_config import get_logger
+from ..base_trader import BaseTrader
+from .app_state import login, logout, is_real_mode, _trader_instance, logger as app_logger # 使用 app_state中的logger
+
+# 如果需要独立的 logger，可以取消下面这行的注释
+# logger = get_logger("scheduler") 
+logger = app_logger # 复用 app_state 的 logger
+
+def _run_scheduler() -> None:
+    """定时任务执行线程的主循环。"""
+    while True:
+        try:
+            schedule.run_pending()
+            time.sleep(1)
+        except Exception as e:
+            logger.error(f"调度器执行错误: {str(e)}")
+
+def _check_reconnect() -> None:
+    """定期检查交易实例是否需要重连（仅实盘模式）。"""
+    while True:
+        try:
+            # 直接使用 app_state 中的 _trader_instance
+            if is_real_mode() and _trader_instance is not None and hasattr(_trader_instance, 'check_reconnect'):
+                _trader_instance.check_reconnect()
+            time.sleep(60)  # 每分钟检查一次
+        except Exception as e:
+            logger.error(f"重连检查错误: {str(e)}")
+
+def login_on_trading_day() -> None:
+    """仅在交易日执行登录操作。"""
+    if BaseTrader.is_trading_date():
+        logger.info("今天是交易日，执行计划的登录操作")
+        login() # 调用 app_state.login
+    else:
+        logger.info("今天不是交易日，跳过计划的登录操作")
+
+def logout_on_trading_day() -> None:
+    """仅在交易日执行登出操作。"""
+    if BaseTrader.is_trading_date():
+        logger.info("今天是交易日，执行计划的登出操作")
+        logout() # 调用 app_state.logout
+    else:
+        logger.info("今天不是交易日，跳过计划的登出操作")
+
+def restart_qmt() -> None:
+    """重启QMT客户端软件。"""
+    try:
+        if not os.path.exists(Config.XT_LAUNCHER):
+            logger.error(f"QMT启动路径不存在: {Config.XT_LAUNCHER}")
+            return
+
+        for proc_name in [Config.XT_PROCESS1, Config.XT_PROCESS2]:
+            try:
+                kill_cmd = f'taskkill /F /IM {proc_name}'
+                result = subprocess.run(kill_cmd, shell=True, capture_output=True, text=True, check=False)
+                if result.returncode == 0:
+                    logger.info(f"已关闭进程: {proc_name}")
+                else:
+                    # 进程不存在通常返回码 128 或 1
+                    if result.returncode not in [1, 128]: 
+                        logger.warning(f"关闭进程 {proc_name} 时返回码: {result.returncode}, 输出: {result.stdout}, 错误: {result.stderr}")
+            except Exception as e:
+                logger.error(f"关闭进程 {proc_name} 时发生异常: {str(e)}")
+
+        subprocess.Popen(Config.XT_LAUNCHER)
+        logger.info(f"已尝试启动QMT软件: {Config.XT_LAUNCHER}")
+    except Exception as e:
+        logger.error(f"重启QMT软件时发生错误: {str(e)}")
+
+def restart_qmt_on_trading_day() -> None:
+    """仅在交易日执行QMT软件重启操作。"""
+    if BaseTrader.is_trading_date():
+        logger.info("今天是交易日，执行计划的QMT软件重启操作")
+        restart_qmt()
+    else:
+        logger.info("今天不是交易日，跳过计划的QMT软件重启")
+
+def setup_scheduler() -> threading.Thread:
+    """
+    设置所有定时任务并启动调度线程。
+
+    Returns:
+        threading.Thread: 启动的调度器线程实例。
+    """
+    schedule.every().day.at(Config.MARKET_OPEN_TIME).do(login_on_trading_day)
+    schedule.every().day.at(Config.MARKET_CLOSE_TIME).do(logout_on_trading_day)
+    schedule.every().day.at(Config.XT_RESTART_TIME).do(restart_qmt_on_trading_day)
+    
+    scheduler_thread = threading.Thread(target=_run_scheduler, daemon=True)
+    scheduler_thread.start()
+    logger.info("定时任务调度器已启动")
+    
+    if is_real_mode():
+        reconnect_thread = threading.Thread(target=_check_reconnect, daemon=True)
+        reconnect_thread.start()
+        logger.info("重连检查线程已启动")
+    
+    return scheduler_thread 
\ No newline at end of file
diff --git a/src/routes/__init__.py b/src/routes/__init__.py
new file mode 100644
index 0000000..8f3617c
--- /dev/null
+++ b/src/routes/__init__.py
@@ -0,0 +1 @@
+# Routes module for Flask Blueprints 
\ No newline at end of file
diff --git a/src/routes/account_routes.py b/src/routes/account_routes.py
new file mode 100644
index 0000000..509b8ef
--- /dev/null
+++ b/src/routes/account_routes.py
@@ -0,0 +1,85 @@
+"""
+账户信息查询相关的API端点。
+
+包括余额、持仓、当日成交、当日委托和单个订单查询。
+"""
+from flask import Blueprint, jsonify, abort
+
+from ..core.app_state import get_trader, is_real_mode, logger
+
+account_bp = Blueprint('account_routes', __name__, url_prefix='/yu')
+
+def _check_trader_availability():
+    """辅助函数，检查交易实例是否可用，如果不可用则 abort(503)。"""
+    trader = get_trader()
+    if not trader:
+        logger.error("Trader instance not available for account request.")
+        abort(503, description="Trader not available. System may be initializing or in a failed state.")
+    
+    if is_real_mode() and not trader.is_available():
+        logger.warning(f"Account info request when trader is not available: {trader.connection_error_message}")
+        abort(503, description=trader.connection_error_message or "交易系统连接失败，请稍后再试")
+    return trader
+
+@account_bp.route("/balance", methods=["GET"])
+def get_balance_route(): # Renamed to avoid conflict with get_balance from app_state if imported directly
+    """获取账户余额信息。"""
+    logger.info("Received balance request")
+    try:
+        trader = _check_trader_availability()
+        balance = trader.get_balance()
+        return jsonify(balance), 200
+    except Exception as e:
+        logger.error(f"Error processing balance request: {str(e)}", exc_info=True)
+        abort(500, description="Internal server error during balance request")
+
+@account_bp.route("/positions", methods=["GET"])
+def get_positions_route(): # Renamed
+    """获取账户持仓信息。"""
+    logger.info("Received positions request")
+    try:
+        trader = _check_trader_availability()
+        positions = trader.get_positions()
+        return jsonify(positions), 200
+    except Exception as e:
+        logger.error(f"Error processing positions request: {str(e)}", exc_info=True)
+        abort(500, description="Internal server error during positions request")
+
+@account_bp.route("/todaytrades", methods=["GET"])
+def get_today_trades_route(): # Renamed
+    """获取当日成交信息。"""
+    logger.info("Received today trades request")
+    try:
+        trader = _check_trader_availability()
+        trades = trader.get_today_trades()
+        return jsonify(trades), 200
+    except Exception as e:
+        logger.error(f"Error processing today trades request: {str(e)}", exc_info=True)
+        abort(500, description="Internal server error during today trades request")
+
+@account_bp.route("/todayorders", methods=["GET"])
+def get_today_orders_route(): # Renamed
+    """获取当日委托信息。"""
+    logger.info("Received today orders request")
+    try:
+        trader = _check_trader_availability()
+        orders = trader.get_today_orders()
+        return jsonify(orders), 200
+    except Exception as e:
+        logger.error(f"Error processing today orders request: {str(e)}", exc_info=True)
+        abort(500, description="Internal server error during today orders request")
+
+@account_bp.route("/order/<order_id>", methods=["GET"])
+def get_order_route(order_id: str): # Renamed
+    """根据订单ID获取订单信息。"""
+    logger.info(f"Received order request for order {order_id}")
+    try:
+        trader = _check_trader_availability()
+        order_info = trader.get_order(order_id)
+        if order_info is None or (isinstance(order_info, dict) and not order_info): # Handle case where order not found
+            logger.warning(f"Order not found for ID: {order_id}")
+            abort(404, description=f"Order with ID {order_id} not found.")
+        return jsonify(order_info), 200
+    except Exception as e:
+        logger.error(f"Error processing order request for {order_id}: {str(e)}", exc_info=True)
+        abort(500, description=f"Internal server error during order request for {order_id}") 
\ No newline at end of file
diff --git a/src/routes/health_routes.py b/src/routes/health_routes.py
new file mode 100644
index 0000000..aac11c1
--- /dev/null
+++ b/src/routes/health_routes.py
@@ -0,0 +1,26 @@
+"""
+健康检查和测试相关的API端点。
+"""
+from flask import Blueprint, jsonify
+
+from ..core.app_state import is_real_mode, get_trader, logger
+
+health_bp = Blueprint('health_routes', __name__, url_prefix='/yu')
+
+@health_bp.route("/healthcheck", methods=["GET"])
+def health_check():
+    """健康检查端点，检查交易系统连接状态。"""
+    if is_real_mode():
+        trader = get_trader()
+        if trader and not trader.is_available():
+            return jsonify({
+                "status": "error",
+                "message": trader.connection_error_message or "交易系统连接失败"
+            }), 503
+    return jsonify({"status": "ok"}), 200
+
+@health_bp.route("/test", methods=["GET"])
+def test_route():
+    """测试路由，用于验证API路由前缀和基本连通性。"""
+    logger.info("Test route accessed.")
+    return jsonify({"success": True, "message": "API路由前缀验证成功"}), 200 
\ No newline at end of file
diff --git a/src/routes/strategy_routes.py b/src/routes/strategy_routes.py
new file mode 100644
index 0000000..b1f54f3
--- /dev/null
+++ b/src/routes/strategy_routes.py
@@ -0,0 +1,35 @@
+"""
+策略管理相关的API端点。
+"""
+from flask import Blueprint, jsonify, abort
+
+from ..core.app_state import get_trader, logger
+
+strategy_bp = Blueprint('strategy_routes', __name__, url_prefix='/yu')
+
+@strategy_bp.route("/clear/<strategy_name>", methods=["DELETE"])
+def clear_strategy_route(strategy_name: str): # Renamed
+    """清除指定策略的持仓管理数据。"""
+    logger.info(f"接收到清除策略持仓请求: {strategy_name}")
+    try:
+        trader = get_trader()
+        if not trader:
+            logger.error("Trader instance not available for clear_strategy request.")
+            return jsonify({"success": False, "message": "Trader not available"}), 503
+
+        # 假设 clear_position_manager 是 BaseTrader 或其子类的方法
+        if hasattr(trader, 'clear_position_manager'):
+            cleared = trader.clear_position_manager(strategy_name)
+            if cleared:
+                logger.info(f"策略 {strategy_name} 持仓数据已清除。")
+                return jsonify({"success": True, "message": f"Strategy {strategy_name} cleared successfully."}), 200
+            else:
+                logger.warning(f"尝试清除一个不存在的策略或清除失败: {strategy_name}")
+                return jsonify({"success": False, "message": f"Strategy {strategy_name} not found or could not be cleared."}), 404
+        else:
+            logger.error(f"Trader instance does not have 'clear_position_manager' method for strategy {strategy_name}")
+            return jsonify({"success": False, "message": "Clear position manager feature not available."}), 501 # Not Implemented
+
+    except Exception as e:
+        logger.error(f"清除策略 {strategy_name} 持仓时出错: {str(e)}", exc_info=True)
+        abort(500, description=f"服务器内部错误，清除策略 {strategy_name} 持仓失败。") 
\ No newline at end of file
diff --git a/src/routes/trading_routes.py b/src/routes/trading_routes.py
new file mode 100644
index 0000000..f1bcbce
--- /dev/null
+++ b/src/routes/trading_routes.py
@@ -0,0 +1,168 @@
+"""
+核心交易操作相关的API端点 (买入、卖出、撤单)。
+"""
+from flask import Blueprint, request, jsonify, abort
+
+from ..core.app_state import get_trader, get_real_trader_manager, is_real_mode, logger
+from ..base_trader import BaseTrader
+from ..trade_constants import ORDER_TYPE_LIMIT, ORDER_DIRECTION_BUY, ORDER_DIRECTION_SELL
+
+trading_bp = Blueprint('trading_routes', __name__, url_prefix='/yu')
+
+@trading_bp.route("/buy", methods=["POST"])
+def buy():
+    """处理买入请求。"""
+    logger.info("Received buy request")
+    data = request.get_json()
+    if not data:
+        logger.error("Buy request with no JSON data")
+        abort(400, description="Request body must be JSON.")
+
+    code = data.get("code")
+    price_str = data.get("price")
+    amount_str = data.get("amount")
+    strategy_name = data.get("strategy_name", "default_strategy")
+    order_type = data.get("order_type", ORDER_TYPE_LIMIT)
+
+    try:
+        if not all([code, price_str, amount_str]):
+            logger.warning(f"Buy request missing parameters: code={code}, price={price_str}, amount={amount_str}")
+            raise ValueError("Missing required parameters: code, price, amount")
+
+        price = float(price_str)
+        amount = int(float(amount_str))
+
+        if order_type == ORDER_TYPE_LIMIT and (price <= 0 or amount <= 0):
+            logger.warning(f"Buy request with invalid price/amount: price={price}, amount={amount}")
+            raise ValueError("For limit orders, price and amount must be positive")
+
+        trader = get_trader()
+        if not trader:
+            logger.error("Trader instance not available for buy request.")
+            return jsonify({"success": False, "error": "Trader not available"}), 503
+
+        if is_real_mode():
+            if not BaseTrader.is_trading_time():
+                logger.warning(f"Buy attempt outside trading hours: {code}, {price}, {amount}")
+                return jsonify({"success": False, "error": "交易失败: 非交易时间不能实盘交易"}), 400
+            
+            if not trader.is_available():
+                logger.error(f"Trader not available for real mode buy: {trader.connection_error_message}")
+                return jsonify({"success": False, "error": trader.connection_error_message or "交易系统连接失败"}), 503
+            
+            rtm = get_real_trader_manager()
+            if not rtm:
+                logger.error("RealTraderManager not available for buy request.")
+                return jsonify({"success": False, "error": "RealTraderManager not available"}), 503
+            
+            logger.info(f"Using RealTraderManager for buy: {code}, {price}, {amount}, {strategy_name}")
+            result = rtm.place_order(strategy_name, code, ORDER_DIRECTION_BUY, amount, price, order_type)
+        else:
+            result = trader.buy(code, price, amount, strategy_name)
+
+        if result.get("success"):
+            logger.info(f"买入下单成功: {result}")
+            return jsonify({"success": True, "order_id": result.get("order_id")}), 200
+        else:
+            logger.error(f"买入下单失败: {result}")
+            return jsonify({"success": False, "error": result.get("error", "Unknown error placing buy order")}), 400
+
+    except ValueError as e:
+        logger.error(f"Invalid buy request parameters: {str(e)}")
+        abort(400, description=str(e))
+    except Exception as e:
+        logger.error(f"Error processing buy request: {str(e)}", exc_info=True)
+        abort(500, description="Internal server error during buy request")
+
+@trading_bp.route("/sell", methods=["POST"])
+def sell():
+    """处理卖出请求。"""
+    logger.info("Received sell request")
+    data = request.get_json()
+    if not data:
+        logger.error("Sell request with no JSON data")
+        abort(400, description="Request body must be JSON.")
+
+    code = data.get("code")
+    price_str = data.get("price")
+    amount_str = data.get("amount")
+    strategy_name = data.get("strategy_name", "default_strategy") 
+    order_type = data.get("order_type", ORDER_TYPE_LIMIT)
+
+    try:
+        if not all([code, price_str, amount_str]):
+            logger.warning(f"Sell request missing parameters: code={code}, price={price_str}, amount={amount_str}")
+            raise ValueError("Missing required parameters: code, price, amount")
+
+        price = float(price_str)
+        amount = int(float(amount_str))
+
+        if order_type == ORDER_TYPE_LIMIT and (price <= 0 or amount <= 0):
+            logger.warning(f"Sell request with invalid price/amount: price={price}, amount={amount}")
+            raise ValueError("For limit orders, price and amount must be positive")
+
+        trader = get_trader()
+        if not trader:
+            logger.error("Trader instance not available for sell request.")
+            return jsonify({"success": False, "error": "Trader not available"}), 503
+
+        if is_real_mode():
+            if not BaseTrader.is_trading_time():
+                logger.warning(f"Sell attempt outside trading hours: {code}, {price}, {amount}")
+                return jsonify({"success": False, "error": "交易失败: 非交易时间不能实盘交易"}), 400
+            
+            if not trader.is_available():
+                logger.error(f"Trader not available for real mode sell: {trader.connection_error_message}")
+                return jsonify({"success": False, "error": trader.connection_error_message or "交易系统连接失败"}), 503
+
+            rtm = get_real_trader_manager()
+            if not rtm:
+                logger.error("RealTraderManager not available for sell request.")
+                return jsonify({"success": False, "error": "RealTraderManager not available"}), 503
+
+            logger.info(f"Using RealTraderManager for sell: {code}, {price}, {amount}, {strategy_name}")
+            result = rtm.place_order(strategy_name, code, ORDER_DIRECTION_SELL, amount, price, order_type)
+        else:
+            result = trader.sell(code, price, amount, strategy_name)
+
+        if result.get("success"):
+            logger.info(f"卖出下单成功: {result}")
+            return jsonify({"success": True, "order_id": result.get("order_id")}), 200
+        else:
+            logger.error(f"卖出下单失败: {result}")
+            return jsonify({"success": False, "error": result.get("error", "Unknown error placing sell order")}), 400
+
+    except ValueError as e:
+        logger.error(f"Invalid sell request parameters: {str(e)}")
+        abort(400, description=str(e))
+    except Exception as e:
+        logger.error(f"Error processing sell request: {str(e)}", exc_info=True)
+        abort(500, description="Internal server error during sell request")
+
+@trading_bp.route("/cancel/<order_id>", methods=["DELETE"])
+def cancel(order_id: str):
+    """根据订单ID处理撤单请求。"""
+    logger.info(f"Received cancel request for order {order_id}")
+
+    try:
+        trader = get_trader()
+        if not trader:
+            logger.error("Trader instance not available for cancel request.")
+            return jsonify({"success": False, "error": "Trader not available"}), 503
+        
+        if is_real_mode() and not trader.is_available():
+            logger.error(f"Trader not available for real mode cancel: {trader.connection_error_message}")
+            return jsonify({"success": False, "error": trader.connection_error_message or "交易系统连接失败"}), 503
+
+        result = trader.cancel(order_id)
+        logger.info(f"撤单结果: {result}")
+        
+        # 假设 cancel 操作总是返回一个字典，即使失败也包含状态
+        if isinstance(result, dict) and result.get("success") is False:
+             return jsonify(result), 400 # Propagate error from trader if structured
+        
+        return jsonify(result), 200
+
+    except Exception as e:
+        logger.error(f"Error processing cancel request for order {order_id}: {str(e)}", exc_info=True)
+        abort(500, description=f"Internal server error during cancel request for order {order_id}") 
\ No newline at end of file
diff --git a/src/trade_server.py b/src/trade_server.py
index 4bed74c..d5d6cbe 100644
--- a/src/trade_server.py
+++ b/src/trade_server.py
@@ -1,567 +1,91 @@
-import schedule
-import threading
-import time
-import subprocess
-import os
-from real.xt_trader import XtTrader
-from flask import Flask, request, abort, jsonify
-from config import Config
-from simulation.simulation_trader import SimulationTrader
-from logger_config import get_logger
-from real.real_trader_manager import RealTraderManager
-from trade_constants import *
-from base_trader import BaseTrader
+"""
+Flask应用主入口文件。
 
-# 获取日志记录器
-logger = get_logger("server")
+负责初始化Flask应用、设置核心服务、注册API路由蓝图以及启动服务。
+"""
+from flask import Flask, request, abort
 
-# 全局交易实例（采用单例模式）
-_trader_instance = None  # 交易实例（单例）
-_real_trader_manager_instance = None  # 实盘交易管理器实例（单例）
+from .config import Config
+from .logger_config import get_logger # 主应用的logger
 
+# 核心服务和状态初始化
+from .core.app_state import login as initialize_trader_login, logger as app_state_logger, is_real_mode
+from .core.scheduler_tasks import setup_scheduler, logger as scheduler_logger
 
-def is_real_mode():
-    return not Config.SIMULATION_MODE
-
-
-# 交易接口连接失败回调
-def on_connect_failed():
-    """交易连接失败的回调函数"""
-    logger.critical("交易系统连接失败，API将返回错误状态")
-
-
-# 获取实盘交易管理器实例的辅助函数
-def get_real_trader_manager():
-    global _real_trader_manager_instance
-
-    if _real_trader_manager_instance is None:
-        _real_trader_manager_instance = (
-            None if Config.SIMULATION_MODE else RealTraderManager(get_trader())
-        )
-
-    return _real_trader_manager_instance
-
-
-# 获取交易实例 - 根据情况返回模拟或实盘交易实例
-def get_trader():
-    global _trader_instance
-
-    # 实盘模式下
-    if is_real_mode() and _trader_instance is None:
-        # 检查是否为交易日
-        if not BaseTrader.is_trading_date():
-            # 非交易日创建临时实例提供错误信息
-            temp_trader = XtTrader(connect_failed_callback=on_connect_failed)
-            temp_trader.connection_failed = True
-            temp_trader.connection_error_message = "当前为非交易日，交易系统未连接"
-            return temp_trader
-        
-        # 交易日但非交易时间
-        if not BaseTrader.is_trading_time():
-            # 非交易时间创建临时实例提供错误信息
-            temp_trader = XtTrader(connect_failed_callback=on_connect_failed)
-            temp_trader.connection_failed = True
-            temp_trader.connection_error_message = "当前为非交易时间，交易系统未连接"
-            return temp_trader
-            
-    # 返回已存在的实例
-    return _trader_instance
-
-def login():
-    global _trader_instance
-    
-    try:
-        # 如果已经有实例，先销毁
-        if _trader_instance is not None and is_real_mode():
-            _trader_instance.logout()
-            _trader_instance = None
-            
-        # 创建新的XtTrader实例
-        _trader_instance = SimulationTrader() if Config.SIMULATION_MODE else XtTrader(connect_failed_callback=on_connect_failed)
-        
-        logger.info("开始登录")
-        
-        # 模拟交易直接返回成功
-        if Config.SIMULATION_MODE:
-            return True
-            
-        # 如果是实盘交易，调用login方法
-        login_success = _trader_instance.login()
-        
-        # 验证连接
-        if login_success:
-            result = _trader_instance.get_balance()
-            if result and result.get("account_id") is not None:
-                logger.info(f"查询余额成功: {result}")
-                return True
-            else:
-                logger.error(f"登录成功但查询余额失败: {result}")
-                _trader_instance.connection_failed = True
-                _trader_instance.last_reconnect_time = time.time()
-                _trader_instance.notify_connection_failure("登录成功但查询余额失败")
-                return False
-        else:
-            logger.error("登录失败")
-            # 不需要在这里设置失败状态，在XtTrader.login方法中已设置
-            return False
-    except Exception as e:
-        logger.error(f"登录初始化异常: {str(e)}")
-        # 如果是实盘模式并且已经成功创建了实例，设置失败状态
-        if is_real_mode() and _trader_instance is not None:
-            _trader_instance.connection_failed = True
-            _trader_instance.last_reconnect_time = time.time()
-            _trader_instance.notify_connection_failure(f"登录初始化异常: {str(e)}")
-            return False
-        # 如果创建实例失败，则抛出异常
-        raise Exception(f"登录失败，无法创建交易实例: {e}")
-
-def logout():
-    global _trader_instance
-    
-    if _trader_instance is not None:
-        _trader_instance.logout()
-        logger.info("登出成功")
-        
-        # 销毁实例
-        if is_real_mode():
-            _trader_instance = None
-            logger.info("XtTrader实例已销毁")
-
-
-def _run_scheduler():
-    """定时任务执行线程"""
-    while True:
-        try:
-            schedule.run_pending()
-            time.sleep(1)
-        except Exception as e:
-            logger.error(f"调度器执行错误: {str(e)}")
-
-
-def _check_reconnect():
-    """重连检查线程，定期检查是否需要重连"""
-    while True:
-        try:
-            if is_real_mode() and _trader_instance is not None:
-                _trader_instance.check_reconnect()
-            time.sleep(60)  # 每分钟检查一次
-        except Exception as e:
-            logger.error(f"重连检查错误: {str(e)}")
-
-
-# 定时任务：检查是否为交易日，并在交易日执行登录操作
-def login_on_trading_day():
-    """仅在交易日执行登录操作"""
-    # 使用BaseTrader中的静态方法检查是否为交易日
-    if BaseTrader.is_trading_date():
-        logger.info("今天是交易日，执行登录操作")
-        login()
-    else:
-        logger.info("今天不是交易日，跳过登录操作")
-
-
-# 定时任务：检查是否为交易日，并在交易日执行登出操作
-def logout_on_trading_day():
-    """仅在交易日执行登出操作"""
-    # 使用BaseTrader中的静态方法检查是否为交易日
-    if BaseTrader.is_trading_date():
-        logger.info("今天是交易日，执行登出操作")
-        logout()
-    else:
-        logger.info("今天不是交易日，跳过登出操作")
-
-
-def restart_qmt():
-    try:
-        # 检查QMT路径是否存在
-        if not os.path.exists(Config.XT_LAUNCHER):
-            logger.error(f"QMT启动路径不存在: {Config.XT_LAUNCHER}")
-            return
-
-        # 先关闭所有QMT相关进程
-        for proc_name in [Config.XT_PROCESS1, Config.XT_PROCESS2]:
-            try:
-                kill_cmd = f'taskkill /F /IM {proc_name}'
-                result = subprocess.run(kill_cmd, shell=True, capture_output=True, text=True)
-                if result.returncode == 0:
-                    logger.info(f"已关闭进程: {proc_name}")
-                else:
-                    logger.warning(f"关闭进程{proc_name}时返回码: {result.returncode}, 输出: {result.stdout}, 错误: {result.stderr}")
-            except Exception as e:
-                logger.error(f"关闭进程{proc_name}时发生异常: {str(e)}")
-
-        # 尝试启动QMT软件
-        subprocess.Popen(Config.XT_LAUNCHER)
-        logger.info(f"已启动QMT软件: {Config.XT_LAUNCHER}")
-    except Exception as e:
-        logger.error(f"重启QMT软件时发生错误: {str(e)}")
-
-# 定时任务：在交易日重启QMT软件
-def restart_qmt_on_trading_day():
-    """仅在交易日执行QMT软件重启操作"""
-    if BaseTrader.is_trading_date():
-        logger.info("今天是交易日，执行QMT软件重启操作")
-        restart_qmt()
-    else:
-        logger.info("今天不是交易日，跳过QMT软件重启")
-
-
-def setup_scheduler():
-    # 设置每日任务，仅在交易日执行
-    schedule.every().day.at(Config.MARKET_OPEN_TIME).do(login_on_trading_day)
-    schedule.every().day.at(Config.MARKET_CLOSE_TIME).do(logout_on_trading_day)
-    schedule.every().day.at(Config.XT_RESTART_TIME).do(restart_qmt_on_trading_day)
-    
-    # 启动调度线程
-    scheduler_thread = threading.Thread(target=_run_scheduler, daemon=True)
-    scheduler_thread.start()
-    logger.info("定时任务调度器已启动")
-    
-    # 启动重连检查线程（仅在实盘模式下）
-    if is_real_mode():
-        reconnect_thread = threading.Thread(target=_check_reconnect, daemon=True)
-        reconnect_thread.start()
-        logger.info("重连检查线程已启动")
-    
-    return scheduler_thread
-
-
-# 初始化交易系统
-try:
-    # 程序启动时初始化交易实例 - 尝试登录，但即使失败也继续启动服务
-    login_success = login()
-    if not login_success and is_real_mode():
-        logger.warning("初始登录失败，系统将在稍后定期尝试重连")
-    
-    # 设置并启动调度器
-    setup_scheduler()
-    
-    logger.info("交易系统初始化完成")
-except Exception as e:
-    logger.error(f"交易系统初始化异常: {e}")
-    # 即使初始化失败也尝试启动调度器
-    try:
-        setup_scheduler()
-        logger.info("调度器启动成功，将尝试定期重新初始化交易系统")
-    except Exception as scheduler_e:
-        logger.error(f"调度器启动失败: {scheduler_e}")
-        raise
+# API 路由蓝图
+from .routes.health_routes import health_bp
+from .routes.trading_routes import trading_bp
+from .routes.account_routes import account_bp
+from .routes.strategy_routes import strategy_bp
 
+# 主日志记录器 (可以根据需要选择使用 app_state_logger 或 scheduler_logger, 或者独立的)
+logger = get_logger("trade_server_main")
 
+# 创建 Flask 应用实例
 app = Flask(__name__)
 
-# 添加中间件，拦截所有不以"/yu"开头的请求并返回404
-@app.before_request
-def check_path_prefix():
-    if not request.path.startswith('/yu'):
-        logger.warning(f"拦截非法请求: {request.path}")
-        abort(404)
-
-@app.route("/yu/healthcheck", methods=["GET"])
-def health_check():
-    if is_real_mode() and _trader_instance and not _trader_instance.is_available():
-        return jsonify({
-            "status": "error",
-            "message": _trader_instance.connection_error_message or "交易系统连接失败"
-        }), 503
-    return jsonify({"status": "ok"}), 200
-
-
-@app.route("/yu/buy", methods=["POST"])
-def buy():
-    """Buy an item with given parameters."""
-    logger.info("Received buy request")
-
-    # Get data from request body
-    data = request.get_json()
-    code = data.get("code")
-    price_str = data.get("price")
-    amount_str = data.get("amount")
-    strategy_name = data.get(
-        "strategy_name", "default_strategy"
-    )  # 新增策略名称参数，默认为空
-    order_type = data.get("order_type", ORDER_TYPE_LIMIT)
+# --- 应用初始化和设置 ---
 
+def initialize_app_services():
+    """初始化应用核心服务，如交易系统登录和定时任务。"""
+    logger.info("开始初始化应用服务...")
     try:
-        if not all([code, price_str, amount_str]):
-            raise ValueError("Missing required parameters")
+        # 1. 尝试初始登录交易系统
+        # login 函数现在位于 app_state.py
+        login_success = initialize_trader_login()
+        if not login_success and is_real_mode():
+            logger.warning("主程序：初始登录失败，系统将在后台尝试重连。")
+        else:
+            logger.info("主程序：交易系统登录步骤完成。")
 
-        price = float(price_str)
-        amount = int(float(amount_str))
-
-        if order_type == ORDER_TYPE_LIMIT and (price <= 0 or amount <= 0):
-            raise ValueError("Price and amount must be positive")
-
-        trader = get_trader()
-
-        if is_real_mode():
-            # 检查是否在交易时间内
-            if not BaseTrader.is_trading_time():
-                logger.warning(
-                    f"交易失败 - 非交易时间不能交易 - 代码: {code}, 价格: {price}, 数量: {amount}"
-                )
-                return (
-                    jsonify(
-                        {"success": False, "error": f"交易失败: 非交易时间不能实盘交易"}
-                    ),
-                    400,
-                )
-            
-            # 检查交易系统是否可用
-            if is_real_mode() and not trader.is_available():
-                return jsonify({
-                    "success": False, 
-                    "error": trader.connection_error_message or "交易系统连接失败，请稍后再试"
-                }), 503
+        # 2. 设置并启动调度器
+        # setup_scheduler 函数现在位于 scheduler_tasks.py
+        setup_scheduler()
+        logger.info("主程序：定时任务调度器已设置并启动。")
         
-            # 开始买入
-            logger.info(
-                f"使用RealTraderManager执行买入: 代码={code}, 价格={price}, 数量={amount}, 策略={strategy_name}"
-            )
-            rtm = get_real_trader_manager()
-            result = rtm.place_order(
-                strategy_name, code, ORDER_DIRECTION_BUY, amount, price, order_type
-            )
-        else:
-            result = trader.buy(code, price, amount, strategy_name)
-
-        if result.get("success"):
-            logger.info(f"买入下单成功: {result}")
-            return jsonify({"success": True, "order_id": result.get("order_id")}), 200
-        else:
-            logger.error(f"买入下单失败: {result}")
-            return jsonify({"success": False, "error": result}), 400
-
-    except ValueError as e:
-        logger.error(f"Invalid request parameters: {str(e)}")
-        abort(400, description=str(e))
-    except Exception as e:
-        logger.error(f"Error processing buy request: {str(e)}")
-        abort(500, description="Internal server error")
-
-
-@app.route("/yu/sell", methods=["POST"])
-def sell():
-    """Sell an item with given parameters."""
-    logger.info("Received sell request")
-
-    # Get data from request body
-    data = request.get_json()
-    code = data.get("code")
-    price_str = data.get("price")
-    amount_str = data.get("amount")
-    strategy_name = data.get("strategy_name", "")  # 新增策略名称参数，默认为空
-    order_type = data.get("order_type", ORDER_TYPE_LIMIT)
-
-    try:
-        if not all([code, price_str, amount_str]):
-            raise ValueError("Missing required parameters")
-
-        price = float(price_str)
-        amount = int(float(amount_str))
-
-        if order_type == ORDER_TYPE_LIMIT and (price <= 0 or amount <= 0):
-            raise ValueError("Price and amount must be positive")
-
-        trader = get_trader()
-
-        if is_real_mode():
-            # 检查是否在交易时间内
-            if not BaseTrader.is_trading_time():
-                logger.warning(
-                    f"交易失败 - 非交易时间不能交易 - 代码: {code}, 价格: {price}, 数量: {amount}"
-                )
-                return (
-                    jsonify(
-                        {"success": False, "error": f"交易失败: 非交易时间不能实盘交易"}
-                    ),
-                    400,
-                )
-            
-            # 检查交易系统是否可用
-            if not trader.is_available():
-                return jsonify({
-                    "success": False, 
-                    "error": trader.connection_error_message or "交易系统连接失败，请稍后再试"
-                }), 503
-            
-            # 开始卖出
-            logger.info(
-                f"使用RealTraderManager执行卖出: 代码={code}, 价格={price}, 数量={amount}, 策略={strategy_name}"
-            )
-            rtm = get_real_trader_manager()
-            result = rtm.place_order(
-                strategy_name, code, ORDER_DIRECTION_SELL, amount, price, order_type
-            )
-        else:
-            result = trader.sell(code, price, amount, strategy_name)
-
-        if result.get("success"):
-            logger.info(f"卖出下单成功: {result}")
-            return jsonify({"success": True, "order_id": result.get("order_id")}), 200
-        elif "error" in result:
-            logger.error(f"卖出下单失败: {result}")
-            return jsonify({"success": False, "error": result["error"]}), 400
-        else:
-            logger.error(f"卖出下单失败: {result}")
-            return jsonify({"success": False, "error": result}), 400
-
-    except ValueError as e:
-        logger.error(f"Invalid request parameters: {str(e)}")
-        abort(400, description=str(e))
-    except Exception as e:
-        logger.error(f"Error processing sell request: {str(e)}")
-        abort(500, description="Internal server error")
-
-
-@app.route("/yu/cancel/<order_id>", methods=["DELETE"])
-def cancel(order_id):
-    """Cancel an order by order_id."""
-    logger.info(f"Received cancel request for order {order_id}")
-
-    try:
-        # 检查交易系统是否可用
-        trader = get_trader()
-        if is_real_mode() and not trader.is_available():
-            return jsonify({
-                "success": False, 
-                "error": trader.connection_error_message or "交易系统连接失败，请稍后再试"
-            }), 503
-
-        result = trader.cancel(order_id)
-        logger.info(f"撤单结果: {result}")
-        return jsonify(result), 200
-    except Exception as e:
-        logger.error(f"Error processing cancel request: {str(e)}")
-        abort(500, description="Internal server error")
-
-
-@app.route("/yu/balance", methods=["GET"])
-def get_balance():
-    """Get balance information."""
-    logger.info("Received balance request")
-
-    try:
-        # 检查交易系统是否可用
-        trader = get_trader()
-        if is_real_mode() and not trader.is_available():
-            return jsonify({
-                "success": False, 
-                "error": trader.connection_error_message or "交易系统连接失败，请稍后再试"
-            }), 503
-
-        balance = trader.get_balance()
-        return jsonify(balance), 200
-    except Exception as e:
-        logger.error(f"Error processing balance request: {str(e)}")
-        abort(500, description="Internal server error")
-
-
-@app.route("/yu/positions", methods=["GET"])
-def get_positions():
-    """Get position information."""
-    logger.info("Received positions request")
-
-    try:
-        # 检查交易系统是否可用
-        trader = get_trader()
-        if is_real_mode() and not trader.is_available():
-            return jsonify({
-                "success": False, 
-                "error": trader.connection_error_message or "交易系统连接失败，请稍后再试"
-            }), 503
-
-        positions = trader.get_positions()
-        return jsonify(positions), 200
-    except Exception as e:
-        logger.error(f"Error processing positions request: {str(e)}")
-        abort(500, description="Internal server error")
-
-
-@app.route("/yu/todaytrades", methods=["GET"])
-def get_today_trades():
-    """Get today's trade information."""
-    logger.info("Received today trades request")
-
-    try:
-        # 检查交易系统是否可用
-        trader = get_trader()
-        if is_real_mode() and not trader.is_available():
-            return jsonify({
-                "success": False, 
-                "error": trader.connection_error_message or "交易系统连接失败，请稍后再试"
-            }), 503
-
-        trades = trader.get_today_trades()
-        return jsonify(trades), 200
-    except Exception as e:
-        logger.error(f"Error processing today trades request: {str(e)}")
-        abort(500, description="Internal server error")
-
-
-@app.route("/yu/todayorders", methods=["GET"])
-def get_today_orders():
-    """Get today's order information."""
-    logger.info("Received today orders request")
-
-    try:
-        # 检查交易系统是否可用
-        trader = get_trader()
-        if is_real_mode() and not trader.is_available():
-            return jsonify({
-                "success": False, 
-                "error": trader.connection_error_message or "交易系统连接失败，请稍后再试"
-            }), 503
-
-        orders = trader.get_today_orders()
-        return jsonify(orders), 200
-    except Exception as e:
-        logger.error(f"Error processing today orders request: {str(e)}")
-        abort(500, description="Internal server error")
-
-
-@app.route("/yu/order/<order_id>", methods=["GET"])
-def get_order(order_id):
-    """Get order information by order_id."""
-    logger.info(f"Received order request for order {order_id}")
-
-    try:
-        # 检查交易系统是否可用
-        trader = get_trader()
-        if is_real_mode() and not trader.is_available():
-            return jsonify({
-                "success": False, 
-                "error": trader.connection_error_message or "交易系统连接失败，请稍后再试"
-            }), 503 
-
-        order = trader.get_order(order_id)
-        return jsonify(order), 200
-    except Exception as e:
-        logger.error(f"Error processing order request: {str(e)}")
-        abort(500, description="Internal server error")
-
-
-@app.route("/yu/clear/<strategy_name>", methods=["DELETE"])
-def clear_strategy(strategy_name):
-    """清除指定策略的持仓管理数据"""
-    logger.info(f"接收到清除策略持仓请求: {strategy_name}")
-    try:
-        if get_trader().clear_position_manager(strategy_name):
-            return jsonify({"success": True, "message": "clear success"}), 200
-        else:
-            return jsonify({"success": False, "message": "策略不存在: " + strategy_name}), 400
+        logger.info("应用服务初始化完成。")
 
     except Exception as e:
-        logger.error(f"清除策略持仓时出错: {str(e)}")
-        abort(500, description="服务器内部错误")
+        logger.error(f"主程序：交易系统或调度器初始化异常: {e}", exc_info=True)
+        # 即使部分初始化失败，也尝试继续，让Flask应用能启动（可能API部分功能受限）
+        # 如果调度器启动失败是关键错误，可以考虑在这里重新抛出异常或退出
+        if "setup_scheduler" not in str(e): # 避免重复日志
+            try:
+                logger.info("尝试单独启动调度器...")
+                setup_scheduler()
+            except Exception as scheduler_e:
+                logger.error(f"主程序：调度器单独启动也失败: {scheduler_e}", exc_info=True)
+                # 根据关键性决定是否在此处 raise scheduler_e
 
+# --- Flask 中间件和路由注册 ---
 
-@app.route("/yu/test", methods=["GET"])
-def test_route():
-    """测试路由，用于验证中间件是否正常工作"""
-    return jsonify({"success": True, "message": "API路由前缀验证成功"}), 200
+@app.before_request
+def check_path_prefix() -> None:
+    """中间件：拦截所有不以 /yu 开头的请求并返回404。"""
+    if not request.path.startswith('/yu'):
+        # 允许访问 Flask 的静态文件，例如 /static/...
+        if not request.path.startswith(app.static_url_path or '/static'): 
+            logger.warning(f"拦截非法路径请求: {request.path}")
+            abort(404)
 
+# 注册蓝图
+app.register_blueprint(health_bp) 
+app.register_blueprint(trading_bp)
+app.register_blueprint(account_bp)
+app.register_blueprint(strategy_bp)
 
+logger.info("所有API路由蓝图已注册。")
+
+# --- 主程序入口 ---
 if __name__ == "__main__":
-    logger.info(f"Server starting on {Config.HOST}:{Config.PORT}")
-    app.run(debug=Config.DEBUG, host=Config.HOST, port=Config.PORT)
+    # 在启动Web服务器之前初始化服务
+    initialize_app_services() 
+    
+    logger.info(f"Flask 服务器准备在 {Config.HOST}:{Config.PORT} 启动...")
+    app.run(debug=Config.DEBUG, host=Config.HOST, port=Config.PORT, use_reloader=False)
+    # use_reloader=False 建议在生产或有自定义启动/关闭逻辑时使用，以避免重复初始化。
+    # 对于开发模式，debug=True 通常会启用重载器。
+else:
+    # 如果是通过 Gunicorn 等 WSGI 服务器运行，则也需要初始化服务
+    # Gunicorn 通常会为每个 worker 进程加载一次应用模块
+    initialize_app_services()