查询MASTER表时，使用upper对MA_USER进行过滤

src/main/java/com/uas/report/util/MasterManager.java

@@ -123,7 +123,7 @@ public class MasterManager {
 			resultSet.close();
 
 			// 根据当前账套用户名获取其数据库配置信息
-			sql = "select * from master where MA_USER = ?";
+			sql = "select * from master where upper(MA_USER) = upper(?)";
 			preparedStatement = connection.prepareStatement(sql);
 			preparedStatement.setString(1, userName);
 			resultSet = preparedStatement.executeQuery();