试图让JTable + JScrollPane滚动
我已经完成了谷歌搜索并尝试实施了许多关于JTable和JScrollPane的不同解决方案。 以下是我遇到的问题的自包含示例。 我希望能够有这些表的水平滚动条。 非常感谢您的协助：
package org.examples; import java.awt.EventQueue; import java.awt.Frame; import java.awt.Rectangle; import java.util.ArrayList; import java.util.List; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.JViewport; import javax.swing.ListSelectionModel; import javax.swing.table.AbstractTableModel; public class TableTest extends JFrame { private JTable tableTest_1; private ArrayListStringTableModel tableTestModel_1; private JTable tableTest_2; private ArrayListStringTableModel tableTestModel_2; private JScrollPane tableTestScrollPane_1; private JScrollPane tableTestScrollPane_2; private class ArrayListStringTableModel extends AbstractTableModel { /** * */ private static final long serialVersionUID = 3071398398073956893L; private List listOfStrings; private String[] columnNames = {""}; public ArrayListStringTableModel (String[] lColumnNames) { columnNames = lColumnNames; listOfStrings = new ArrayList(); } public void addString (String lString) { String localString = lString; listOfStrings.add(localString); } public int getColumnCount () { return columnNames.length; } public int getRowCount () { return listOfStrings.size(); } public String getColumnName (int col) { return columnNames[col]; } public Object getValueAt (int row, int column) { Object returnObject = null; String localString = listOfStrings.get(row); switch (column) { case 0 : returnObject = (Object)localString; break; } return returnObject; } } /** * Initialize the contents of the frame. */ public TableTest() { String[] rows = {"Damage Resistance (only vs. Head Shots) Physical Damage Reduction, Resistant, 75% ; Only Works Against Head Shots Rare attack , Only Amyklai can use Energy Damage Reduction, Resistant, 75% ; Only Works Against Head Shots Rare attack , Only Amyklai can use", "Mental Defense (10 points total),Only Amyklai can use", "Sight Group Flash Defense (5 points),Only Amyklai can use", "Resistant Protection (10 PD/10 ED),STR Min 18 , Costs Half Endurance", "Banded Mail Resistant Protection (8 PD/8 ED)" }; String[] columns = {"Damage"}; tableTestModel_1 = new ArrayListStringTableModel(columns); tableTestModel_2 = new ArrayListStringTableModel(columns); // Set up the main window frame setTitle("Table Test"); setSize(435, 375); getContentPane().setLayout(null); for (int i=0; i <= 4; i++) { tableTestModel_1.addString(rows[i]); tableTestModel_2.addString(rows[i]); } tableTest_1 = new JTable(tableTestModel_1); tableTest_1.setBounds(new Rectangle(10, 10, 395, 250)); tableTest_1.setAutoResizeMode(JTable.AUTO_RESIZE_OFF); tableTestScrollPane_1 = new JScrollPane(tableTest_1); tableTestScrollPane_1.setBounds(10, 10, 405, 80); tableTestScrollPane_1.setColumnHeaderView(tableTest_1); tableTest_2 = new JTable(tableTestModel_2); tableTest_2.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); tableTest_2.setAutoResizeMode(JTable.AUTO_RESIZE_OFF); tableTestScrollPane_2 = new JScrollPane(tableTest_2); tableTestScrollPane_2.setBounds(10, 100, 200, 80); JViewport viewport = new JViewport(); viewport.setView(tableTest_2); viewport.setPreferredSize(tableTest_2.getPreferredSize()); tableTestScrollPane_2.setRowHeaderView(viewport); tableTestScrollPane_2.setCorner(JScrollPane.UPPER_LEFT_CORNER, tableTest_2.getTableHeader()); getContentPane().add(tableTestScrollPane_1); getContentPane().add(tableTestScrollPane_2); } /** * @param args */ public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { public void run() { try { TableTest testtableWindow = new TableTest(); testtableWindow.setVisible(true); } catch (Exception e) { e.printStackTrace(); } } }); } } 这是将表移动到滚动窗格列标题位置，它没有滚动条…摆脱它…
tableTestScrollPane_1.setColumnHeaderView(tableTest_1);
这实质上是从滚动窗格中删除tableTest_2并将其放在一个新的视图端口并将其添加到行标题…没有滚动条。
viewport.setView(tableTest_2); ... tableTestScrollPane_2.setRowHeaderView(viewport);
一个组件只能属于一个父…
尝试类似的事情;
tableTest_1 = new JTable(tableTestModel_1); tableTest_1.setBounds(new Rectangle(10, 10, 395, 100)); tableTest_1.setAutoResizeMode(JTable.AUTO_RESIZE_OFF); tableTestScrollPane_1 = new JScrollPane(tableTest_1); tableTest_2 = new JTable(tableTestModel_2); tableTest_2.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); tableTest_2.setAutoResizeMode(JTable.AUTO_RESIZE_OFF); tableTestScrollPane_2 = new JScrollPane(tableTest_2); getContentPane().add(tableTestScrollPane_1); getContentPane().add(tableTestScrollPane_2);