Refactor logger to implement a global file handler, preventing duplicate log entries. Updated logger initialization to ensure a single file handler is used across all loggers, enhancing logging efficiency and clarity.

gx_gp_monitor/core/logger.py

@@ -59,6 +59,7 @@ class Logger:
         if not self._initialized:
             self._loggers = {}
             self._config = None
+            self._file_handler = None  # 全局文件处理器，避免重复创建
             self._initialized = True
 
     def init_logger(self, name: str = "gx_gp_monitor", config=None) -> logging.Logger:
@@ -89,6 +90,9 @@ class Logger:
         logger = logging.getLogger(name)
         logger.setLevel(getattr(logging, self._config.log_level.value))
 
+        # 防止消息传播到父logger，避免重复记录
+        logger.propagate = False
+
         # 避免重复添加处理器
         if logger.handlers:
             return logger
@@ -115,20 +119,23 @@ class Logger:
 
         logger.addHandler(console_handler)
 
-        # 文件处理器（如果配置了日志文件）
-        if self._config.log_file:
+        # 文件处理器（如果配置了日志文件）- 使用全局文件处理器避免重复
+        if self._config.log_file and self._file_handler is None:
             log_dir = Path(self._config.log_file).parent
             log_dir.mkdir(parents=True, exist_ok=True)
 
-            file_handler = logging.handlers.RotatingFileHandler(
+            self._file_handler = logging.handlers.RotatingFileHandler(
                 self._config.log_file,
                 maxBytes=self._config.log_max_size,
                 backupCount=self._config.log_backup_count,
                 encoding='utf-8'
             )
-            file_handler.setLevel(getattr(logging, self._config.log_level.value))
-            file_handler.setFormatter(formatter)
-            logger.addHandler(file_handler)
+            self._file_handler.setLevel(getattr(logging, self._config.log_level.value))
+            self._file_handler.setFormatter(formatter)
+
+        # 为所有logger添加全局文件处理器
+        if self._file_handler is not None:
+            logger.addHandler(self._file_handler)
 
         self._loggers[name] = logger
         return logger