java如何用swing做出界面 不用数据库实现永久的增删改查

代码如下

package org.lanqian.mimi;

import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import java.io.EOFException;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.table.DefaultTableModel;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JTextField;
import javax.swing.JButton;
import javax.swing.JTable;
import javax.swing.JScrollPane;

public class TestMian extends JFrame {

	private JPanel contentPane;
	private JTextField textField;
	private JTextField textField_1;
	private JTextField textField_2;
	private JTable table;
	private List person =new ArrayList();
	private String[] columnNames = {"密码","性别","爱好"};// 定义表格列名数组,"密码","性别","爱好","专业","出生年月"
	private Person seletd;

	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				try {
					增删改查 frame = new 增删改查();
					frame.setVisible(true);
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}

	/**
	 * Create the frame.
	 */
	public 增删改查() {
		setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
		setBounds(100, 100, 595, 620);
		contentPane = new JPanel();
		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
		setContentPane(contentPane);
		contentPane.setLayout(null);
		
		JLabel label = new JLabel("序号");
		label.setBounds(14, 13, 43, 18);
		contentPane.add(label);
		
		textField = new JTextField();
		textField.setBounds(56, 10, 86, 24);
		contentPane.add(textField);
		textField.setColumns(10);
		
		JLabel label_1 = new JLabel("姓名");
		label_1.setBounds(171, 13, 35, 18);
		contentPane.add(label_1);
		
		textField_1 = new JTextField();
		textField_1.setBounds(220, 10, 86, 24);
		contentPane.add(textField_1);
		textField_1.setColumns(10);
		
		JLabel label_2 = new JLabel("年龄");
		label_2.setBounds(14, 47, 43, 18);
		contentPane.add(label_2);
		
		textField_2 = new JTextField();
		textField_2.setBounds(56, 44, 86, 24);
		contentPane.add(textField_2);
		textField_2.setColumns(10);
		
		JButton button = new JButton("增加");
		button.setBounds(320, 9, 86, 27);
		button.addActionListener(new ActionListener() {
			
			@Override
			public void actionPerformed(ActionEvent e) {
				// TODO 自动生成的方法存根
				add();
			}
		});
		contentPane.add(button);
		
		JButton button_1 = new JButton("删除");
		button_1.setBounds(420, 9, 80, 27);
		button_1.addActionListener(new ActionListener() {
			
			@Override
			public void actionPerformed(ActionEvent e) {
				int row = table.getSelectedRow();
				System.out.println(row);
				int a = table.getSelectedRows().length;
				System.out.println(a);
				if(row!=-1){
					for(int i =0;i

person实体类

package org.lanqian.mimi;

import java.io.Serializable;

public class Person implements Serializable{

	/**
	 * 
	 */
	private static final long serialVersionUID = 5820406232562041052L;
	private String fid;
	private String fname;
	private	int fage;
	public String getFid() {
		return fid;
	}
	public void setFid(String fid) {
		this.fid = fid;
	}
	public String getFname() {
		return fname;
	}
	public void setFname(String fname) {
		this.fname = fname;
	}
	public int getFage() {
		return fage;
	}
	public void setFage(int fage) {
		this.fage = fage;
	}
	public Person(String fid, String fname, int fage) {
		super();
		this.fid = fid;
		this.fname = fname;
		this.fage = fage;
	}
	public Person() {
		super();
	}
	@Override
	public String toString() {
		return "Person [fid=" + fid + ", fname=" + fname + ", fage=" + fage
				+ "]";
	}
	

}

这是主界面,运行结果如下

 

java如何用swing做出界面 不用数据库实现永久的增删改查_第1张图片

下面是增加和刷新和修改的方法

//修改
	public void modify(){
		String aid = textField.getText();
		String naem = textField_1.getText();
		String age = textField_2.getText();
		seletd.setFid(aid);
		seletd.setFname(naem);
		seletd.setFage(Integer.parseInt(age));
		getinfo();
		
		
		
	}
	//增加
	public void add(){
		String aid = textField.getText();
		String naem = textField_1.getText();
		String age = textField_2.getText();
		Person p = new Person(aid, naem, Integer.parseInt(age));
		person.add(p);
		getinfo();
		textField.setText("");
		textField_1.setText("");
		textField_2.setText("");
	}
	//刷新
	public void getinfo(){
		System.out.println(person);
		Object[][] tableValues = new Object[person.size()][];
		for(int i =0;i

在退出程序的时候用输出流和对象流来保存数据

在点开程序的时候用输入流和对象流来读取数据

 

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