0313界面对接

common/sqlite_handler.py

@@ -108,14 +108,16 @@ class SQLiteHandler:
     """SQLite数据库操作通用类（单例模式）"""
 
     _lock = threading.Lock()  # 单例锁
-    _instance = None
+    _instances = {}
     @classmethod
-    def get_instance(cls, *args, **kwargs):
-        if cls._instance is None:
+    def get_instance(cls,db_path, *args, **kwargs):
+         # 使用文件路径作为键
+        key = db_path
+        if key not in cls._instances:
             with cls._lock:  
-                if cls._instance is None:  # 双重检查
-                    cls._instance = cls(*args, **kwargs)
-        return cls._instance
+                if key not in cls._instances:  # 双重检查
+                    cls._instances[key] = cls(db_path, *args, **kwargs)
+        return cls._instances[key]
     
     def __init__(self, db_path: str = "three.db", max_readers: int = 10, busy_timeout: int = 5000):
         """
@@ -160,7 +162,7 @@ class SQLiteHandler:
         try:
             # 创建临时连接来设置参数
             conn = sqlite3.connect(self.db_path, **self._connection_params)
-            
+        
             # 启用WAL模式（Write-Ahead Logging）
             cursor = conn.execute("PRAGMA journal_mode = WAL")
             journal_mode = cursor.fetchone()[0]
@@ -184,6 +186,7 @@ class SQLiteHandler:
     def _create_connection(self) -> sqlite3.Connection:
         """创建新的数据库连接"""
         conn = sqlite3.connect(self.db_path, **self._connection_params)
+        conn.set_trace_callback(lambda x: print(x))
         conn.row_factory = sqlite3.Row
         return conn