Java 调整标题表的大小
我的桌子有两个问题。我设法给行添加了一个标题。但是，即使我正在使用Java 调整标题表的大小,java,swing,jtable,Java,Swing,Jtable,我的桌子有两个问题。我设法给行添加了一个标题。但是，即使我正在使用headerTable.setAutoResizeModeJTable.AUTO_RESIZE_ALL_COLUMNS），它们也不会自行调整大小。此外，即使我在表格模型中设置了我的列名，也不会显示它们 下面是一个简短的示例程序： import java.awt.Color; import java.awt.Component; import java.awt.Dimension; import java.awt.EventQueu
headerTable.setAutoResizeModeJTable.AUTO_RESIZE_ALL_COLUMNS），它们也不会自行调整大小。此外，即使我在表格模型中设置了我的列名，也不会显示它们
下面是一个简短的示例程序：
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Font;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.SwingConstants;
import javax.swing.UIManager;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.event.RowSorterEvent;
import javax.swing.event.RowSorterListener;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableModel;
import javax.swing.table.TableRowSorter;
public class JTableRowHeader {
private JFrame frame = new JFrame("JTable RowHeader");
private JScrollPane scrollPane;
private JTable table;
private DefaultTableModel model;
private TableRowSorter<TableModel> sorter;
private JTable headerTable;
public JTableRowHeader() {
table = new JTable(5, 10);
for (int i = 0; i < table.getRowCount(); i++) {
System.out.println(i);
for (int a = 0; a < table.getColumnCount(); a++) {
System.out.println(a);
table.setValueAt(a, i, a);
}
}
sorter = new TableRowSorter<TableModel>(table.getModel());
table.setRowSorter(sorter);
model = new DefaultTableModel() {
/**
* UUID
*/
private static final long serialVersionUID = 2797195270050411045L;
private String[] columnNames = {"test1", "test2", "test3", "test3", "test5"};
@Override
public int getColumnCount() {
return 1;
}
@Override
public boolean isCellEditable(int row, int col) {
return false;
}
@Override
public String getColumnName(int index) {
return columnNames[index];
}
@Override
public int getRowCount() {
return table.getRowCount();
}
@Override
public Class<?> getColumnClass(int colNum) {
switch (colNum) {
case 0:
return String.class;
default:
return super.getColumnClass(colNum);
}
}
};
//set table headers
headerTable = new JTable(model);
headerTable.setValueAt("Costs", 0, 0);
headerTable.setValueAt("Product", 1, 0);
headerTable.setValueAt("Table", 2, 0);
headerTable.setValueAt("Risk", 3, 0);
headerTable.setValueAt("Equity", 4, 0);
headerTable.setShowGrid(true);
headerTable.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS);
headerTable.setPreferredScrollableViewportSize(new Dimension(50, 0));
headerTable.getColumnModel().getColumn(0).setPreferredWidth(50);
headerTable.getColumnModel().getColumn(0).setCellRenderer(new TableCellRenderer() {
@Override
public Component getTableCellRendererComponent(JTable x, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
boolean selected = table.getSelectionModel().isSelectedIndex(row);
Component component = table.getTableHeader().getDefaultRenderer().getTableCellRendererComponent(table, value, false, false, -1, -2);
((JLabel) component).setHorizontalAlignment(SwingConstants.CENTER);
if (selected) {
component.setFont(component.getFont().deriveFont(Font.BOLD));
component.setForeground(Color.red);
} else {
component.setFont(component.getFont().deriveFont(Font.PLAIN));
}
return component;
}
});
table.getRowSorter().addRowSorterListener(new RowSorterListener() {
@Override
public void sorterChanged(RowSorterEvent e) {
model.fireTableDataChanged();
}
});
table.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
@Override
public void valueChanged(ListSelectionEvent e) {
model.fireTableRowsUpdated(0, model.getRowCount() - 1);
}
});
scrollPane = new JScrollPane(table);
scrollPane.setRowHeaderView(headerTable);
table.setPreferredScrollableViewportSize(table.getPreferredSize());
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.add(scrollPane);
frame.pack();
frame.setLocation(150, 150);
frame.setVisible(true);
}
public static void main(String[] args) {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e) {
//e.printStackTrace();
}
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
JTableRowHeader TestTableRowHeader = new JTableRowHeader();
}
});
}
}
您可以看到它们是由以下部分组成的：
更新2
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Font;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.SwingConstants;
import javax.swing.UIManager;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.event.RowSorterEvent;
import javax.swing.event.RowSorterListener;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableModel;
import javax.swing.table.TableRowSorter;
public class JTableRowHeader {
private JFrame frame = new JFrame("JTable RowHeader");
private JScrollPane scrollPane;
private JTable table;
private DefaultTableModel model;
private TableRowSorter<TableModel> sorter;
private JTable headerTable;
public JTableRowHeader() {
table = new JTable(5, 10);
for (int i = 0; i < table.getRowCount(); i++) {
System.out.println(i);
for (int a = 0; a < table.getColumnCount(); a++) {
System.out.println(a);
table.setValueAt(a, i, a);
}
}
sorter = new TableRowSorter<TableModel>(table.getModel());
table.setRowSorter(sorter);
model = new DefaultTableModel() {
/**
* UUID
*/
private static final long serialVersionUID = 2797195270050411045L;
private String[] columnNames = {"test1", "test2", "test3", "test4", "test5", "test6", "test7", "test8", "test9", "test10"};
@Override
public int getColumnCount() {
return 1;
}
@Override
public boolean isCellEditable(int row, int col) {
return false;
}
@Override
public String getColumnName(int index) {
return columnNames[index];
}
@Override
public int getRowCount() {
return table.getRowCount();
}
@Override
public Class<?> getColumnClass(int colNum) {
switch (colNum) {
case 0:
return String.class;
default:
return super.getColumnClass(colNum);
}
}
};
//set table headers
headerTable = new JTable(model);
headerTable.setValueAt("Costs and Sales", 0, 0);
headerTable.setValueAt("Product", 1, 0);
headerTable.setValueAt("Table 234", 2, 0);
headerTable.setValueAt("Risk and Equity", 3, 0);
headerTable.setValueAt("Equity in million", 4, 0);
headerTable.setShowGrid(false);
headerTable.setAutoResizeMode(JTable.AUTO_RESIZE_LAST_COLUMN);
headerTable.setPreferredScrollableViewportSize(new Dimension(50, 0));
headerTable.getColumnModel().getColumn(0).setPreferredWidth(50);
headerTable.getColumnModel().getColumn(0).setCellRenderer(new TableCellRenderer() {
@Override
public Component getTableCellRendererComponent(JTable x, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
boolean selected = table.getSelectionModel().isSelectedIndex(row);
Component component = table.getTableHeader().getDefaultRenderer().getTableCellRendererComponent(table, value, false, false, -1, -2);
((JLabel) component).setHorizontalAlignment(SwingConstants.CENTER);
if (selected) {
component.setFont(component.getFont().deriveFont(Font.BOLD));
component.setForeground(Color.red);
} else {
component.setFont(component.getFont().deriveFont(Font.PLAIN));
}
return component;
}
});
table.getRowSorter().addRowSorterListener(new RowSorterListener() {
@Override
public void sorterChanged(RowSorterEvent e) {
model.fireTableDataChanged();
}
});
table.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
@Override
public void valueChanged(ListSelectionEvent e) {
model.fireTableRowsUpdated(0, model.getRowCount() - 1);
}
});
scrollPane = new JScrollPane(table);
scrollPane.setRowHeaderView(headerTable);
table.setPreferredScrollableViewportSize(table.getPreferredSize());
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.add(scrollPane);
frame.pack();
frame.setLocation(150, 150);
frame.setVisible(true);
}
public static void main(String[] args) {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e) {
//e.printStackTrace();
}
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
JTableRowHeader TestTableRowHeader = new JTableRowHeader();
}
});
}
}
导入java.awt.Color；
导入java.awt.Component；
导入java.awt.Dimension；
导入java.awt.EventQueue；
导入java.awt.Font；
导入javax.swing.JFrame；
导入javax.swing.JLabel；
导入javax.swing.JScrollPane；
导入javax.swing.JTable；
导入javax.swing.SwingConstants；
导入javax.swing.UIManager；
导入javax.swing.event.ListSelectionEvent；
导入javax.swing.event.ListSelectionListener；
导入javax.swing.event.RowsortRevent；
导入javax.swing.event.RowSorterListener；
导入javax.swing.table.DefaultTableModel；
导入javax.swing.table.TableCellRenderer；
导入javax.swing.table.TableModel；
导入javax.swing.table.TableRowSorter；
公共类JTableRowHeader{
私有JFrame=newjframe（“JTable行标题”）；
私有JScrollPane滚动窗格；
专用JTable表；
私有模型；
私人桌面分拣机；
私人JTable headerTable；
公共JTableRowHeader（）{
表=新的JTable（5,10）；
对于（int i=0；i
您可以看到，当添加足够多的列时，我的列名称保持不变。此外，我的标题表无法调整大小
谢谢你的回复
此外，即使我设置了列名，也不会显示它们
在表格模型中
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Font;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.SwingConstants;
import javax.swing.UIManager;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.event.RowSorterEvent;
import javax.swing.event.RowSorterListener;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableModel;
import javax.swing.table.TableRowSorter;
public class JTableRowHeader {
private JFrame frame = new JFrame("JTable RowHeader");
private JScrollPane scrollPane;
private JTable table;
private DefaultTableModel model;
private TableRowSorter<TableModel> sorter;
private JTable headerTable;
public JTableRowHeader() {
table = new JTable(5, 10);
for (int i = 0; i < table.getRowCount(); i++) {
System.out.println(i);
for (int a = 0; a < table.getColumnCount(); a++) {
System.out.println(a);
table.setValueAt(a, i, a);
}
}
sorter = new TableRowSorter<TableModel>(table.getModel());
table.setRowSorter(sorter);
model = new DefaultTableModel() {
/**
* UUID
*/
private static final long serialVersionUID = 2797195270050411045L;
private String[] columnNames = {"test1", "test2", "test3", "test4", "test5", "test6", "test7", "test8", "test9", "test10"};
@Override
public int getColumnCount() {
return 1;
}
@Override
public boolean isCellEditable(int row, int col) {
return false;
}
@Override
public String getColumnName(int index) {
return columnNames[index];
}
@Override
public int getRowCount() {
return table.getRowCount();
}
@Override
public Class<?> getColumnClass(int colNum) {
switch (colNum) {
case 0:
return String.class;
default:
return super.getColumnClass(colNum);
}
}
};
//set table headers
headerTable = new JTable(model);
headerTable.setValueAt("Costs and Sales", 0, 0);
headerTable.setValueAt("Product", 1, 0);
headerTable.setValueAt("Table 234", 2, 0);
headerTable.setValueAt("Risk and Equity", 3, 0);
headerTable.setValueAt("Equity in million", 4, 0);
headerTable.setShowGrid(false);
headerTable.setAutoResizeMode(JTable.AUTO_RESIZE_LAST_COLUMN);
headerTable.setPreferredScrollableViewportSize(new Dimension(50, 0));
headerTable.getColumnModel().getColumn(0).setPreferredWidth(50);
headerTable.getColumnModel().getColumn(0).setCellRenderer(new TableCellRenderer() {
@Override
public Component getTableCellRendererComponent(JTable x, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
boolean selected = table.getSelectionModel().isSelectedIndex(row);
Component component = table.getTableHeader().getDefaultRenderer().getTableCellRendererComponent(table, value, false, false, -1, -2);
((JLabel) component).setHorizontalAlignment(SwingConstants.CENTER);
if (selected) {
component.setFont(component.getFont().deriveFont(Font.BOLD));
component.setForeground(Color.red);
} else {
component.setFont(component.getFont().deriveFont(Font.PLAIN));
}
return component;
}
});
table.getRowSorter().addRowSorterListener(new RowSorterListener() {
@Override
public void sorterChanged(RowSorterEvent e) {
model.fireTableDataChanged();
}
});
table.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
@Override
public void valueChanged(ListSelectionEvent e) {
model.fireTableRowsUpdated(0, model.getRowCount() - 1);
}
});
scrollPane = new JScrollPane(table);
scrollPane.setRowHeaderView(headerTable);
table.setPreferredScrollableViewportSize(table.getPreferredSize());
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.add(scrollPane);
frame.pack();
frame.setLocation(150, 150);
frame.setVisible(true);
}
public static void main(String[] args) {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e) {
//e.printStackTrace();
}
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
JTableRowHeader TestTableRowHeader = new JTableRowHeader();
}
});
}
}
headerTable.setAutoResizeModeJTable.AUTO_RESIZE_ALL_COLUMNS);.
import java.awt.*;
import java.awt.event.ActionEvent;
import javax.swing.*;
import javax.swing.UIManager.*;
import javax.swing.event.*;
import javax.swing.table.*;
public class JTableRowHeader {
private JFrame frame = new JFrame("JTable RowHeader");
private JScrollPane scrollPane;
private JTable table;
private DefaultTableModel dataModel;
private DefaultTableModel model;
private TableRowSorter<TableModel> sorter;
private JTable headerTable;
private String[] columnNames = {"test1", "test2", "test3", "test3"};
public JTableRowHeader() {
table = new JTable(4, 4);
dataModel = (DefaultTableModel) table.getModel();
for (int i = 0; i < dataModel.getRowCount(); i++) {
for (int ii = 0; ii < dataModel.getRowCount(); ii++) {
dataModel.setValueAt(i + ii, i, ii);
}
}
TableColumnModel tcm = table.getColumnModel();
tcm.getColumn(0).setHeaderValue(columnNames[0]);
tcm.getColumn(1).setHeaderValue(columnNames[1]);
tcm.getColumn(2).setHeaderValue(columnNames[2]);
tcm.getColumn(3).setHeaderValue(columnNames[3]);
sorter = new TableRowSorter<TableModel>(table.getModel());
table.setRowSorter(sorter);
model = new DefaultTableModel() {
private static final long serialVersionUID = 1L;
@Override
public int getColumnCount() {
return 1;
}
@Override
public boolean isCellEditable(int row, int col) {
return false;
}
@Override
public int getRowCount() {
return table.getRowCount();
}
@Override
public Class<?> getColumnClass(int colNum) {
switch (colNum) {
case 0:
return String.class;
default:
return super.getColumnClass(colNum);
}
}
};
headerTable = new JTable(model);
for (int i = 0; i < table.getRowCount(); i++) {
headerTable.setValueAt("Row " + (i + 1), i, 0);
}
headerTable.setShowGrid(false);
headerTable.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
headerTable.setPreferredScrollableViewportSize(new Dimension(50, 0));
headerTable.getColumnModel().getColumn(0).setPreferredWidth(50);
headerTable.getColumnModel().getColumn(0).setCellRenderer(new TableCellRenderer() {
@Override
public Component getTableCellRendererComponent(JTable x, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
boolean selected = table.getSelectionModel().isSelectedIndex(row);
Component component = table.getTableHeader().getDefaultRenderer().getTableCellRendererComponent(table, value, false, false, -1, -2);
((JLabel) component).setHorizontalAlignment(SwingConstants.CENTER);
if (selected) {
component.setFont(component.getFont().deriveFont(Font.BOLD));
component.setForeground(Color.red);
} else {
component.setFont(component.getFont().deriveFont(Font.PLAIN));
}
return component;
}
});
table.getRowSorter().addRowSorterListener(new RowSorterListener() {
@Override
public void sorterChanged(RowSorterEvent e) {
model.fireTableDataChanged();
}
});
table.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
@Override
public void valueChanged(ListSelectionEvent e) {
model.fireTableRowsUpdated(0, model.getRowCount() - 1);
}
});
scrollPane = new JScrollPane(table);
scrollPane.setRowHeaderView(headerTable);
table.setPreferredScrollableViewportSize(table.getPreferredSize());
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.add(scrollPane);
frame.add(new JButton(new AbstractAction("Toggle filter") {
private static final long serialVersionUID = 1L;
private RowFilter<TableModel, Object> filter = new RowFilter<TableModel, Object>() {
@Override
public boolean include(javax.swing.RowFilter.Entry<? extends TableModel, ? extends Object> entry) {
return ((Number) entry.getValue(0)).intValue() % 2 == 0;
}
};
@Override
public void actionPerformed(ActionEvent e) {
if (sorter.getRowFilter() != null) {
sorter.setRowFilter(null);
} else {
sorter.setRowFilter(filter);
}
}
}), BorderLayout.SOUTH);
frame.pack();
frame.setLocation(150, 150);
frame.setVisible(true);
}
public static void main(String[] args) {
try {// UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
if (info.getName().equals("Nimbus")) {
UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (Exception e) {
//e.printStackTrace();
}
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
JTableRowHeader TestTableRowHeader = new JTableRowHeader();
}
});
}
}