如何在 Java 中过滤 JTable?
awtjavaobject oriented programmingprogrammingswing
JTable 提供了一种非常灵活的方式来创建和显示表格。TableModel 接口为指定表格内容的对象定义了方法。AbstractTableModel 类通常经过扩展以提供模型表的自定义实现。JTable 类提供了使用方法 setCellEditor() 编辑表格的功能，该方法允许 TableCellEditor 接口的对象。
我们可以使用 TableRowSorter 类的 setRowFilter() 方法过滤表格。
示例
import java.awt.*;
import java.awt.event.*;
import java.util.regex.*;
import javax.swing.*;
import javax.swing.table.*;
public class FilterTableTest extends JFrame {
private JTable table;
private TableModel model;
public FilterTableTest() {
setTitle("FilterTable Test");
Object rows[][] = {{"Adithya", "Content Developer", 25000}, {"Jai", "SME", 30000}, {"Chaitanya", "Java Engineer", 45000}, {"Ramesh", "Scala Developer", 40000}, {"Ravi", "SAP Consultant", 70000}};
Object columns[] = {"Name", "Designation", "Salary"};
model = new DefaultTableModel(rows, columns) {
public Class getColumnClass(int column) {
Class returnValue;
if((column >= 0) && (column < getColumnCount())) {
returnValue = getValueAt(0, column).getClass();
} else {
returnValue = Object.class;
}
return returnValue;
}
};
table = new JTable(model);
final TableRowSorter<TableModel> sorter = new TableRowSorter<TableModel>(model);
table.setRowSorter(sorter);
add(new JScrollPane(table), BorderLayout.CENTER);
JPanel panel = new JPanel(new BorderLayout());
JLabel label = new JLabel("Filter");
panel.add(label, BorderLayout.WEST);
final JTextField filterText = new JTextField("");
panel.add(filterText, BorderLayout.CENTER);
add(panel, BorderLayout.NORTH);
JButton button = new JButton("Filter");
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
String text = filterText.getText();
if(text.length() == 0) {
sorter.setRowFilter(null);
} else {
try {
sorter.setRowFilter(RowFilter.regexFilter(text));
} catch(PatternSyntaxException pse) {
System.out.println("Bad regex pattern");
}
}
}
});
add(button, BorderLayout.SOUTH);
setSize(400, 300);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLocationRelativeTo(null);
setVisible(true);
}
public static void main(String args[]) {
new FilterTableTest();
}
}
输出
