REPORT-57872 数据集-数据库查询时候，列名之间的分隔符没了

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

@@ -48,9 +48,17 @@ public class CopyableJTable extends SortableJTable {
     boolean mouseDrag = false;
     boolean headerSelect = false;
 
-    DefaultTableCellRenderer tableHeaderCellRenderer = new DefaultTableCellRenderer() {
+
+    class CopyableTableHeaderCellRenderer implements TableCellRenderer {
+        TableCellRenderer tableCellRenderer;
+
+        CopyableTableHeaderCellRenderer(TableCellRenderer tableCellRenderer) {
+            this.tableCellRenderer = tableCellRenderer;
+        }
+
+        @Override
         public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
-            JComponent comp = (JComponent) super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
+            JComponent comp = (JComponent) this.tableCellRenderer.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
             if (isChoose(row, column)) {
                 comp.setBackground(selectBackGround);
             } else {
@@ -58,13 +66,13 @@ public class CopyableJTable extends SortableJTable {
             }
             return comp;
         }
-    };
+    }
 
 
     public CopyableJTable(TableSorter tableModel) {
         super(tableModel);
         initListener();
-        this.getTableHeader().setDefaultRenderer(tableHeaderCellRenderer);
+        this.getTableHeader().setDefaultRenderer(new CopyableTableHeaderCellRenderer(this.getTableHeader().getDefaultRenderer()));
     }
 
     private void initListener() {