文本框

你的名字 2021-12-16 06:19 371阅读 0赞

package testDemo;
    /**
    * @author 作者 E-mail:
    * @version 创建时间：2019年6月4日 下午4:13:49
    * 类说明
    */
    import javax.swing.*;
    import javax.swing.table.*;
    import java.awt.*;
    import java.awt.event.*;
     
    public class TestFilter {
    	public static void main(String args[]) {
    		JFrame frame = new JFrame("JTable的过滤测试");
    		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    		Object rows[][] = { { "王明", "中国", 44 }, { "姚明", "中国", 25 },
    				{ "赵子龙", "西蜀", 1234 }, { "曹操", "北魏", 2112 },
    				{ "Bill Gates", "美国", 45 }, { "Mike", "英国", 33 } };
    		String columns[] = { "姓名", "国籍", "年龄" };
    		TableModel 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;
    			}
    		};
    		final JTable table = new JTable(model);
    		final TableRowSorter<TableModel> sorter = new TableRowSorter<TableModel>(
    				model);
    		table.setRowSorter(sorter);
    		JScrollPane pane = new JScrollPane(table);
    		frame.add(pane, BorderLayout.CENTER);
    		JPanel panel = new JPanel(new BorderLayout());
    		JLabel label = new JLabel("过滤");
    		panel.add(label, BorderLayout.WEST);
    		final JTextField filterText = new JTextField("");
    		panel.add(filterText, BorderLayout.CENTER);
    		frame.add(panel, BorderLayout.NORTH);
    		JButton button = new JButton("过滤");
    		button.addActionListener(new ActionListener() {
    			public void actionPerformed(ActionEvent e) {
    				String text = filterText.getText();
    				if (text.length() == 0) {
    					sorter.setRowFilter(null);
    				} else {
    					sorter.setRowFilter(RowFilter.regexFilter(text));
    				}
    			}
    		});
    		frame.add(button, BorderLayout.SOUTH);
    		frame.setSize(300, 250);
    		frame.setVisible(true);
    	}
    }

不同的编写方式

import java.awt.BorderLayout;
    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;
    
    import javax.swing.JButton;
    import javax.swing.JFrame;
    import javax.swing.JLabel;
    import javax.swing.JPanel;
    import javax.swing.JScrollPane;
    import javax.swing.JTable;
    import javax.swing.JTextField;
    import javax.swing.RowFilter;
    import javax.swing.table.DefaultTableModel;
    import javax.swing.table.TableModel;
    import javax.swing.table.TableRowSorter;
    
    
    /*
     * 本程序的目的是在桌面上设计的表格中，，点击要查询的数据，点击过滤按钮之后，就可以
     * 在桌面表格中显示过滤后的数据，
     * 
     */
    
    
    public class MyFirstWork {
    	
         //定义界面框架，面板按钮，桌面表格及其数据
    	JFrame frame =new JFrame("Jtabe 测试文件");
    	//JScrollPane panel = new JScrollPane();
    	JTextField  text =new  JTextField(); 
    	JButton  button =new  JButton("过滤数据");
    	final JTextField filterText = new JTextField("");
    	JPanel panel = new JPanel(new BorderLayout());
    	
    	//定义数据
    
    	Object rows[][] = { { "王明", "中国", 44 }, { "姚明", "中国", 25 },
    
    			{ "赵子龙", "西蜀", 1234 }, { "曹操", "北魏", 2112 },
    
    			{ "Bill Gates", "美国", 45 }, { "Mike", "英国", 33 } };
       //定义数据
    	String columns[] = { "姓名", "国籍", "年龄" };
    	
    	TableModel 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;
    
    		}
    	};
    	
    	
    	final JTable table = new JTable(model);
    	JScrollPane pane = new JScrollPane(table);
    	
    	final TableRowSorter<TableModel> sorter = new TableRowSorter<TableModel>(
    			
    			model);
    	
    	//主类，运行程序
         public static  void main(String []args) {
        	 
        	 new  MyFirstWork();
        	    	 
         }
         
         
         //定义构造器
         public MyFirstWork() {
    
     		frame.setBounds(400, 550, 600,500);
    
     		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        
    		frame.add(pane, BorderLayout.CENTER);
    
    
    		JLabel label = new JLabel("过滤");
    
    		panel.add(label, BorderLayout.WEST);
    
    
    		panel.add(filterText, BorderLayout.CENTER);
    
    		frame.add(panel, BorderLayout.NORTH);
    		table.setRowSorter(sorter);		
    
    	
        	 addButton();
        	     	 
         }
          
    	
    	//添加按钮机器监听事件
    	private void addButton() {
    		// TODO 自动生成的方法存根
    		//定义数据按钮
    				JButton button = new JButton("过滤");
    
    				button.addActionListener(new ActionListener() {
    
    					public void actionPerformed(ActionEvent e) {
    
    						String text = filterText.getText();
    
    						if (text.length() == 0) {
    
    							sorter.setRowFilter(null);
    
    						} else {
    
    							sorter.setRowFilter(RowFilter.regexFilter(text));
    
    						}
    
    					}
    
    				});
    
    				frame.add(button, BorderLayout.SOUTH);
    
    				frame.setSize(500, 450);
    
    				frame.setVisible(true);
    	}
    }

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTc5MjE2Mg_size_16_color_FFFFFF_t_70][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTc5MjE2Mg_size_16_color_FFFFFF_t_70]: /images/20211214/d4bb2df3e5b54f27b69a36beef62e559.png