Merge pull request #380 in DESIGN/design from ~HZZZ/design61:release/10.0 to release/10.0

* commit '55e792cedb8818a399c6e7630022d8b666c12841':
  REPORT-10489【客户升级10.0】工作目录切换位远程后，第一次预览数据集进度框一直显示

designer-base/src/main/java/com/fr/design/data/datapane/preview/PreviewTablePane.java

@@ -26,14 +26,25 @@ import com.fr.design.layout.FRGUIPaneFactory;
 import com.fr.design.mainframe.DesignerContext;
 import com.fr.function.TIME;
 import com.fr.general.FRFont;
-
 import com.fr.log.FineLoggerFactory;
 
-import javax.swing.*;
+import javax.swing.BorderFactory;
+import javax.swing.Icon;
+import javax.swing.JComponent;
+import javax.swing.JOptionPane;
+import javax.swing.JPanel;
+import javax.swing.JScrollPane;
+import javax.swing.JTable;
+import javax.swing.SwingWorker;
+import javax.swing.UIManager;
 import javax.swing.table.DefaultTableCellRenderer;
 import javax.swing.table.TableColumn;
 import javax.swing.table.TableModel;
-import java.awt.*;
+import java.awt.BorderLayout;
+import java.awt.Color;
+import java.awt.Component;
+import java.awt.Font;
+import java.awt.Graphics;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 import java.awt.event.MouseAdapter;
@@ -358,14 +369,16 @@ public class PreviewTablePane extends BasicPane {
         worker = new SwingWorker<PreviewTableModel, Void>() {
             protected PreviewTableModel doInBackground() throws Exception {
                 connectionBar.start();
+                try {
                     if (tableData instanceof DBTableData) {
                         boolean status = DataOperator.getInstance().testConnection(((DBTableData) tableData).getDatabase());
                         if (!status) {
-                        connectionBar.close();
                             throw new Exception(com.fr.design.i18n.Toolkit.i18nText("Fine-Design_Basic_Database_Connection_Failed"));
                         }
                     }
+                } finally {
                     connectionBar.close();
+                }
                 TableDataSource dataSource = HistoryTemplateListPane.getInstance().getCurrentEditingTemplate().getTarget();
                 previewTableData = DesignTableDataManager.previewTableDataNeedInputParameters(dataSource, tableData, (int) maxPreviewNumberField.getValue(), true);
                 // parameterInputDialog