回退日志组件为按天分割

app/logger.py

@@ -0,0 +1,110 @@
+import logging
+import logging.handlers
+import os
+from pathlib import Path
+from typing import Optional
+
+from app.config import settings
+
+
+class LoggerManager:
+    """日志管理器"""
+    
+    _loggers = {}
+    _initialized = False
+    
+    @classmethod
+    def setup_logging(cls):
+        """设置日志系统"""
+        if cls._initialized:
+            return
+        
+        # 创建日志目录
+        log_dir = Path(settings.log_file).parent
+        log_dir.mkdir(parents=True, exist_ok=True)
+        
+        # 配置根日志器
+        root_logger = logging.getLogger()
+        root_logger.setLevel(getattr(logging, settings.log_level.upper()))
+        
+        # 清除现有处理器
+        root_logger.handlers.clear()
+        
+        # 创建控制台处理器
+        console_handler = logging.StreamHandler()
+        console_handler.setLevel(getattr(logging, settings.log_level.upper()))
+        
+        # 控制台使用普通格式化器
+        console_formatter = logging.Formatter(
+            fmt=settings.log_format,
+            datefmt=settings.log_date_format
+        )
+        console_handler.setFormatter(console_formatter)
+        
+        # 创建文件处理器（按时间轮转）
+        file_handler = logging.handlers.TimedRotatingFileHandler(
+            filename=settings.log_file,
+            when='midnight',  # 每天午夜轮转
+            interval=1,       # 每天一次
+            backupCount=settings.log_backup_count,
+            encoding='utf-8',
+        )
+        # 创建后设置 suffix 属性
+        file_handler.suffix = "%Y%m%d"  # 设置文件后缀格式，如 app.log.20231215
+        file_handler.setLevel(settings.log_level)  # 文件记录所有级别
+        
+        # 文件使用普通格式化器
+        file_formatter = logging.Formatter(
+            fmt=settings.log_format,
+            datefmt=settings.log_date_format
+        )
+        file_handler.setFormatter(file_formatter)
+        
+        # 添加处理器到根日志器
+        root_logger.addHandler(console_handler)
+        root_logger.addHandler(file_handler)
+        
+        # 设置第三方库的日志级别
+        logging.getLogger("uvicorn").setLevel(logging.INFO)
+        logging.getLogger("uvicorn.access").setLevel(logging.WARNING)
+        logging.getLogger("sqlalchemy.engine").setLevel(logging.WARNING)
+        logging.getLogger("httpx").setLevel(logging.WARNING)
+        logging.getLogger("watchfiles").setLevel(logging.WARNING)
+        
+        cls._initialized = True
+        
+        # 记录日志系统启动
+        logger = cls.get_logger("LoggerManager")
+        logger.info("🚀 日志系统初始化完成")
+        logger.info(f"📁 日志文件: {settings.log_file}")
+        logger.info(f"📊 日志级别: {settings.log_level}")
+    
+    @classmethod
+    def get_logger(cls, name: str) -> logging.Logger:
+        """获取指定名称的日志器"""
+        if not cls._initialized:
+            cls.setup_logging()
+        
+        if name not in cls._loggers:
+            cls._loggers[name] = logging.getLogger(name)
+        
+        return cls._loggers[name]
+
+
+def get_logger(name: Optional[str] = None) -> logging.Logger:
+    """获取日志器的便捷函数"""
+    if name is None:
+        # 自动获取调用者的模块名
+        import inspect
+        frame = inspect.currentframe().f_back
+        name = frame.f_globals.get('__name__', 'unknown')
+    
+    return LoggerManager.get_logger(name)
+
+
+# 预定义的日志器
+app_logger = get_logger("app")
+api_logger = get_logger("api")
+db_logger = get_logger("database")
+redis_logger = get_logger("redis")
+external_api_logger = get_logger("external_api")