将程序修改为在搅拌楼端运行

database/access_db.py

@@ -1,5 +1,6 @@
 """Access数据库操作模块"""
 import pyodbc
+import os
 
 
 class AccessDB:
@@ -10,49 +11,74 @@ class AccessDB:
 
     def connect(self):
         """连接Access数据库"""
-        conn_str = (
-            r'DRIVER={Microsoft Access Driver (*.mdb, *.accdb)};'
-            f'DBQ={self.db_path};'
-            f'PWD={self.password};'
-        )
-        self.connection = pyodbc.connect(conn_str)
-        return self.connection
+        try:
+            # 检查网络路径是否存在
+            if self.db_path.startswith('\\\\') and not os.path.exists(self.db_path):
+                raise FileNotFoundError(f"无法访问网络路径: {self.db_path}，请检查网络连接和共享设置")
+            
+            conn_str = (
+                r'DRIVER={Microsoft Access Driver (*.mdb, *.accdb)};'
+                f'DBQ={self.db_path};'
+                f'PWD={self.password};'
+            )
+            self.connection = pyodbc.connect(conn_str)
+            return self.connection
+        except pyodbc.Error as e:
+            print(f"连接Access数据库失败: {e}")
+            raise
+        except FileNotFoundError as e:
+            print(f"数据库文件不可访问: {e}")
+            raise
 
     def get_max_mark(self):
         """获取Access数据库中最大的Mark值"""
-        if not self.connection:
-            self.connect()
+        try:
+            if not self.connection:
+                self.connect()
 
-        cursor = self.connection.cursor()
-        cursor.execute("SELECT MAX(Mark) FROM Produce")
-        max_mark = cursor.fetchone()[0]
+            cursor = self.connection.cursor()
+            cursor.execute("SELECT MAX(Mark) FROM Produce")
+            max_mark = cursor.fetchone()[0]
 
-        if max_mark is None:
-            max_mark = 0
+            if max_mark is None:
+                max_mark = 0
 
-        return max_mark
+            return max_mark
+        except pyodbc.Error as e:
+            print(f"查询最大Mark值时出错: {e}")
+            return 0
+        except Exception as e:
+            print(f"获取最大Mark值时发生未知错误: {e}")
+            return 0
 
     def query_task_status(self, mis_ids):
         """查询任务状态"""
-        if not self.connection:
-            self.connect()
+        try:
+            if not self.connection:
+                self.connect()
 
-        if not mis_ids:
+            if not mis_ids:
+                return {}
+
+            cursor = self.connection.cursor()
+            placeholders = ','.join('?' * len(mis_ids))
+            query = f"SELECT MISID, Flag FROM Produce WHERE MISID IN ({placeholders})"
+            cursor.execute(query, mis_ids)
+            results = cursor.fetchall()
+
+            current_tasks = {}
+            for row in results:
+                mark = row[0]
+                flag = row[1] if row[1] is not None else ""
+                current_tasks[mark] = flag
+
+            return current_tasks
+        except pyodbc.Error as e:
+            print(f"查询任务状态时出错: {e}")
+            return {}
+        except Exception as e:
+            print(f"查询任务状态时发生未知错误: {e}")
             return {}
-
-        cursor = self.connection.cursor()
-        placeholders = ','.join('?' * len(mis_ids))
-        query = f"SELECT MISID, Flag FROM Produce WHERE MISID IN ({placeholders})"
-        cursor.execute(query, mis_ids)
-        results = cursor.fetchall()
-
-        current_tasks = {}
-        for row in results:
-            mark = row[0]
-            flag = row[1] if row[1] is not None else ""
-            current_tasks[mark] = flag
-
-        return current_tasks
 
     def close(self):
         """关闭数据库连接"""

database/sql_server_connection.py

@@ -32,7 +32,7 @@ class SQLServerConnection:
             SELECT 
                 Code, 
                 U1, U2, U3, U4, U5, U6, U7, U8, U9, U10, U11, U12, U13, U14, U15, U16, U17
-            FROM MixTable 
+            FROM Recipe_back 
             WHERE Code IS NOT NULL
             ORDER BY Code
             """