Swing之JTable篇如何在表头中增加图片

import java.awt.BorderLayout; import java.awt.Component; import javax.swing.Icon; import javax.swing.ImageIcon; import javax.swing.JComponent; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.UIManager; import javax.swing.border.Border; import javax.swing.table.TableCellRenderer; import javax.swing.table.TableColumn; import javax.swing.table.TableColumnModel; class JComponentTableCellRenderer implements TableCellRenderer { public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { return (JComponent) value; } } public class LabelHeaderSample { public static void main(String args[]) { final Object rows[][] = { { "one", "1" }, { "two", "2" }, { "three", "3" } }; JFrame frame = new JFrame("Label Header"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); String headers[] = { "English", "#" }; JTable table = new JTable(rows, headers); JScrollPane scrollPane = new JScrollPane(table); //创建需要增加的图片对象 Icon redIcon = new ImageIcon("yourFile.gif"); Icon blueIcon = new ImageIcon("yourFile.gif"); Border headerBorder = UIManager.getBorder("TableHeader.cellBorder"); JLabel blueLabel = new JLabel(headers[0], blueIcon, JLabel.CENTER); blueLabel.setBorder(headerBorder); JLabel redLabel = new JLabel(headers[1], redIcon, JLabel.CENTER); redLabel.setBorder(headerBorder); //获得表单元个渲染器 TableCellRenderer renderer = new JComponentTableCellRenderer(); //获得表列模式 TableColumnModel columnModel = table.getColumnModel(); //获得需要增加图片的列对象 TableColumn column0 = columnModel.getColumn(0); TableColumn column1 = columnModel.getColumn(1); //将用于绘制 TableColumn 的头的 TableCellRenderer 设置为 renderer。 column0.setHeaderRenderer(renderer); //设置 Object，将使用其字符串表示形式作为 headerRenderer 的值。 column0.setHeaderValue(blueLabel); column1.setHeaderRenderer(renderer); column1.setHeaderValue(redLabel); frame.add(scrollPane, BorderLayout.CENTER); frame.setSize(300, 150); frame.setVisible(true); } } import java.awt.BorderLayout; import java.awt.Component; import javax.swing.Icon; import javax.swing.ImageIcon; import javax.swing.JComponent; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.UIManager; import javax.swing.border.Border; import javax.swing.table.TableCellRenderer; import javax.swing.table.TableColumn; import javax.swing.table.TableColumnModel; class JComponentTableCellRenderer implements TableCellRenderer { public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { return (JComponent) value; } } public class LabelHeaderSample { public static void main(String args[]) { final Object rows[][] = { { "one", "1" }, { "two", "2" }, { "three", "3" } }; JFrame frame = new JFrame("Label Header"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); String headers[] = { "English", "#" }; JTable table = new JTable(rows, headers); JScrollPane scrollPane = new JScrollPane(table); //创建需要增加的图片对象 Icon redIcon = new ImageIcon("yourFile.gif"); Icon blueIcon = new ImageIcon("yourFile.gif"); Border headerBorder = UIManager.getBorder("TableHeader.cellBorder"); JLabel blueLabel = new JLabel(headers[0], blueIcon, JLabel.CENTER); blueLabel.setBorder(headerBorder); JLabel redLabel = new JLabel(headers[1], redIcon, JLabel.CENTER); redLabel.setBorder(headerBorder); //获得表单元个渲染器 TableCellRenderer renderer = new JComponentTableCellRenderer(); //获得表列模式 TableColumnModel columnModel = table.getColumnModel(); //获得需要增加图片的列对象 TableColumn column0 = columnModel.getColumn(0); TableColumn column1 = columnModel.getColumn(1); //将用于绘制 TableColumn 的头的 TableCellRenderer 设置为 renderer。 column0.setHeaderRenderer(renderer); //设置 Object，将使用其字符串表示形式作为 headerRenderer 的值。 column0.setHeaderValue(blueLabel); column1.setHeaderRenderer(renderer); column1.setHeaderValue(redLabel); frame.add(scrollPane, BorderLayout.CENTER); frame.setSize(300, 150); frame.setVisible(true); } }