初始提交

app/config_loader.py

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+import json
+import os
+from zoneinfo import ZoneInfo
+from typing import Dict, Any
+
+class ConfigLoader:
+    def __init__(self, config_file: str = 'config.json'):
+        self.config_file = config_file
+        self._config = None
+    
+    def load_config(self) -> Dict[str, Any]:
+        """加载 JSON 配置文件"""
+        if self._config is None:
+            config_path = os.path.join(os.path.dirname(os.path.dirname(__file__)), self.config_file)
+            try:
+                with open(config_path, 'r', encoding='utf-8') as f:
+                    self._config = json.load(f)
+            except FileNotFoundError:
+                raise FileNotFoundError(f"配置文件 {config_path} 不存在")
+            except json.JSONDecodeError as e:
+                raise ValueError(f"配置文件格式错误: {e}")
+        
+        return self._config
+    
+    def get(self, key: str, default=None):
+        """获取配置值，支持点号分隔的嵌套键"""
+        config = self.load_config()
+        keys = key.split('.')
+        value = config
+        
+        try:
+            for k in keys:
+                value = value[k]
+            return value
+        except (KeyError, TypeError):
+            return default
+    
+    @property
+    def SECRET_KEY(self) -> str:
+        return self.get('SECRET_KEY')
+    
+    @property
+    def MONGO_URI(self) -> str:
+        return self.get('MONGO_URI')
+    
+    @property
+    def TIMEZONE(self) -> ZoneInfo:
+        timezone_str = self.get('TIMEZONE', 'Asia/Shanghai')
+        return ZoneInfo(timezone_str)
+    
+    @property
+    def ISTEST_MODE(self) -> bool:
+        return self.get('ISTEST_MODE', False)
+    
+    @property
+    def SERVER_HOST(self) -> str:
+        return self.get('SERVER.HOST', '0.0.0.0')
+    
+    @property
+    def SERVER_PORT(self) -> int:
+        return self.get('SERVER.PORT', 5222)
+    
+    @property
+    def SERVER_DEBUG(self) -> bool:
+        return self.get('SERVER.DEBUG', False)
+    
+    @property
+    def JWT_ALGORITHM(self) -> str:
+        return self.get('JWT.ALGORITHM', 'HS256')
+    
+    @property
+    def JWT_EXPIRATION_HOURS(self) -> int:
+        return self.get('JWT.EXPIRATION_HOURS', 24)
+    
+    @property
+    def EMAIL_GMAIL_USER(self) -> str:
+        return self.get('EMAIL.GMAIL_USER')
+    
+    @property
+    def EMAIL_APP_PASSWORD(self) -> str:
+        return self.get('EMAIL.APP_PASSWORD')
+    
+    @property
+    def RSA_PRIVATE_KEY_FILE(self) -> str:
+        return self.get('RSA.PRIVATE_KEY_FILE', 'private.pem')
+    
+    @property
+    def RSA_PUBLIC_KEY_FILE(self) -> str:
+        return self.get('RSA.PUBLIC_KEY_FILE', 'public.pem')
+    
+    @property
+    def LOGGING_LEVEL(self) -> str:
+        return self.get('LOGGING.LEVEL', 'DEBUG')
+    
+    @property
+    def LOGGING_FORMAT(self) -> str:
+        return self.get('LOGGING.FORMAT', '%(asctime)s %(name)s %(levelname)s %(message)s')
+
+# 创建全局配置实例
+config_loader = ConfigLoader()