1.定义一个数据表
2.为这个表建立一个类，成员变量是表的字段、方法是每个成员变量的getter与setter
3.建立一个DAO类，实现对这个表的数据的添加、删除、更新、查询（包括查询单条记录与查询多条记录）
4.建立一个Swing程序、控制台程序（二选一），实现对这个数据表的增删改查功能。
步骤：
定义一个数据表，直接在SQL数据库中定义就行。如果不清楚怎么在Java和SQL数据库中搭建JDBC，请看我的用JDBC连接SQL Server2017数据库。在这里我建立了一个学生信息的数据表。
做准备工作：
建一个Java链接SQL数据库的类：
DbTools.java:
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import cn.model.www.Students;
public class DbTools {
Connection conn;
public Connection getConn(){
try {
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
String url="jdbc:sqlserver://localhost:1433;DatabaseName=填写你的表格名";
String user="你的SQL账户";
String password="账户密码";
conn=DriverManager.getConnection(url, user, password);
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return conn;
}
}
为这个表建立一个Students的类：
public class Students {
private int id;
private String sname;
private String sex;
private int age;
private String hobby;
private String sclass;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getSname() {
return sname;
}
public void setSname(String sname) {
this.sname = sname;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getHobby() {
return hobby;
}
public void setHobby(String hobby) {
this.hobby = hobby;
}
public String getSclass() {
return sclass;
}
public void setSclass(String sclass) {
this.sclass = sclass;
}
}
建立一个更新数据的类：
public class UpDateNumber {
private int number;
static int n;
public int getNumber() {
return number;
}
public void setNumber(int number) {
this.number = number;
n=number;
}
public static int getN(){
return n;
}
}
建立一个DAO类，实现对这个表的数据的添加、删除、更新、查询（包括查询单条记录与查询多条记录）：
package cn.dao.www;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
import cn.db.www.DbTools;
import cn.model.www.Students;
public class StuDao {
public int addusers(Students stu){ // 添加学生信息
int i=0;
DbTools db=new DbTools();
Connection conn=db.getConn();
try {
String sql="insert into tb_student (sname,sex,age,hobby,sclass)values(?,?,?,?,?)";
PreparedStatement ps=conn.prepareStatement(sql);
ps.setString(1, stu.getSname());
ps.setString(2, stu.getSex());
ps.setInt(3, stu.getAge());
ps.setString(4, stu.getHobby());
ps.setString(5, stu.getSclass());
i=ps.executeUpdate();
ps.close();
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
return i;
}
public int updateusers(Students stu,int id){ // 修改学生信息
int i=0;
DbTools db=new DbTools();
Connection conn=db.getConn();
try {
String sql="update tb_student set sname=?,sex=?,age=?,hobby=?,sclass=? where id=?";
PreparedStatement ps=conn.prepareStatement(sql);
ps.setString(1, stu.getSname());
ps.setString(2, stu.getSex());
ps.setInt(3, stu.getAge());
ps.setString(4, stu.getHobby());
ps.setString(5, stu.getSclass());
ps.setInt(6, id);
i=ps.executeUpdate();
ps.close();
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
return i;
}
public List selectAll(){ // 查询所有学生信息
String sql="select * from tb_student";
DbTools db=new DbTools();
Connection conn=db.getConn();
ResultSet rs=null;
List<Students> ls=new ArrayList<Students>();
try {
Statement st=conn.createStatement();
rs=st.executeQuery(sql);
while(rs.next()){
Students stu=new Students();
stu.setId(rs.getInt("id"));
stu.setSname(rs.getString("sname"));
stu.setSex(rs.getString("sex"));
stu.setAge(rs.getInt("age"));
stu.setHobby(rs.getString("hobby"));
stu.setSclass(rs.getString("sclass"));
ls.add(stu);
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return ls;
}
public Students getOne(int id){ // 查询一个学生信息
Students stu=new Students();
String sql="select * from tb_student where id="+id;
DbTools db=new DbTools();
Connection conn=db.getConn();
ResultSet rs=null;
try {
Statement st=conn.createStatement();
rs=st.executeQuery(sql);
while(rs.next()){
stu.setSname(rs.getString("sname"));
stu.setSex(rs.getString("sex"));
stu.setAge(rs.getInt("age"));
stu.setHobby(rs.getString("hobby"));
stu.setSclass(rs.getString("sclass"));
}
} catch (SQLException e) {
e.printStackTrace();
}
return stu;
}
public void deleteStu(int id){ // 删除一个学生信息
String sql="delete from tb_student where id="+id;
DbTools db=new DbTools();
Connection conn=db.getConn();
ResultSet rs=null;
try {
Statement st=conn.createStatement();
st.execute(sql);
} catch (SQLException e) {
e.printStackTrace();
}
}
}
开始设计Swing程序窗口对数据库进行增删改查：
包含三个窗口：一个主窗口（MainFrame），一个添加窗口（InsertStuFrame），一个更新窗口（UpdateStuFrame）
MainFrame.java:
package cn.frame.www;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.List;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.border.EmptyBorder;
import javax.swing.table.DefaultTableModel;
import cn.dao.www.StuDao;
import cn.model.www.Students;
import cn.model.www.UpDateNumber;
public class MainFrame extends JFrame {
private JPanel contentPane;
private JTable table;
private StuDao dao = new StuDao();
JScrollPane scrollPane = new JScrollPane();
private DefaultTableModel defaultModel;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
MainFrame frame = new MainFrame();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public MainFrame() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 426, 357);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
JPanel panel = new JPanel();
panel.setBounds(0, 0, 576, 417);
contentPane.add(panel);
panel.setLayout(null);
JLabel messageLabel = new JLabel("\u5B66\u751F\u4FE1\u606F");
messageLabel.setFont(new Font("华文中宋", Font.PLAIN, 16));
messageLabel.setBounds(149, 26, 108, 34);
panel.add(messageLabel);
scrollPane.setBounds(33, 70, 346, 204);
panel.add(scrollPane);
selecttable();
JButton deleteButton = new JButton("删除");
deleteButton.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
do_deleteButton_actionPerformed(arg0);
}
}
);
deleteButton.setBounds(209, 284, 73, 23);
panel.add(deleteButton);
JButton closeButton = new JButton("关闭");
closeButton.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
do_button_1_actionPerformed(arg0);
}
}
);
closeButton.setBounds(292, 284, 73, 23);
panel.add(closeButton);
JButton button = new JButton("\u4FEE\u6539");
button.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
do_button_actionPerformed(e);
}
}
);
button.setBounds(126, 284, 73, 23);
panel.add(button);
JButton button_1 = new JButton("\u6DFB\u52A0");
button_1.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
addstu(e);
}
}
);
button_1.setBounds(43, 284, 73, 23);
panel.add(button_1);
}
public void selecttable() {
table = new JTable();
defaultModel = (DefaultTableModel) table.getModel();// 获得表格模型
defaultModel.setRowCount(0);// 清空表格模型中的数据
defaultModel.setColumnIdentifiers(new Object[] { "学号", "姓名", "性别", "年龄", "班级" });// 定义表头
table.getTableHeader().setReorderingAllowed(false);
table.setModel(defaultModel);// 设置表格模型
List list = dao.selectAll();
for (int i = 0; i < list.size(); i++) {
Students stu = (Students) list.get(i);
defaultModel
.addRow(new Object[] { stu.getId(), stu.getSname(), stu.getSex(), stu.getAge(), stu.getSclass() });
}
scrollPane.setViewportView(table);
}
// 删除按钮的单击事件
protected void do_deleteButton_actionPerformed(ActionEvent arg0) {
int row = table.getSelectedRow();
if (row == -1) { // 如果用户没有选择任何行，则进行提示
JOptionPane.showMessageDialog(this, "请选择要删除的学生", "", JOptionPane.WARNING_MESSAGE);
return;
}
if (row >= 0) {
int n = JOptionPane.showConfirmDialog(getContentPane(), "确认删除吗？", "删除对话框",
JOptionPane.YES_NO_CANCEL_OPTION);
if (n == JOptionPane.YES_OPTION) { // 如果用户确认信息
dao.deleteStu(Integer.parseInt(table.getValueAt(row, 0).toString()));
}
selecttable();
}
}
// 关闭按钮的单击事件
protected void do_button_1_actionPerformed(ActionEvent arg0) {
int n = JOptionPane.showConfirmDialog(getContentPane(), "确认关闭吗？", "关闭对话框", JOptionPane.YES_NO_CANCEL_OPTION);
if (n == JOptionPane.YES_OPTION) { // 如果用户确认信息
System.exit(0);
}
}
protected void addstu(ActionEvent arg0) {// 添加按钮的单击事件
InsertStuFrame insert = new InsertStuFrame();
insert.setVisible(true);
selecttable();
}
// 修改按钮的单击事件
protected void do_button_actionPerformed(ActionEvent e) {
int row = table.getSelectedRow();
if (row == -1) { // 如果用户没有选择任何行，则进行提示
JOptionPane.showMessageDialog(this, "请选择要修改的学生", "", JOptionPane.WARNING_MESSAGE);
return;
}
UpDateNumber up = new UpDateNumber();
up.setNumber(Integer.parseInt(table.getValueAt(row, 0).toString()));
UpdateStuFrame uf = new UpdateStuFrame();
uf.setVisible(true);
selecttable();
}
}
InsertStuFrame.java:
package cn.frame.www;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;
import cn.dao.www.StuDao;
import cn.model.www.Students;
public class InsertStuFrame extends JDialog {
private JPanel contentPane;
private JTextField sname;
private JTextField age;
private JTextField sclass;
private JComboBox sexComboBox;
JCheckBox checkBox, checkBox_1, checkBox_2, checkBox_3;
private JTextField userNameTextField;
private JCheckBox checkBox_4;
private JCheckBox checkBox_5;
StringBuffer buff = new StringBuffer();
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
InsertStuFrame frame = new InsertStuFrame();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public InsertStuFrame() {
setModal(true);
setResizable(false);
setModalExclusionType(ModalExclusionType.TOOLKIT_EXCLUDE);
setBounds(100, 100, 331, 363);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
setTitle("添加学生信息");
JPanel panel = new JPanel();
panel.setBounds(0, 0, 324, 338);
contentPane.add(panel);
panel.setLayout(null);
JLabel nameLabel = new JLabel("姓名：");
nameLabel.setBounds(29, 24, 45, 15);
panel.add(nameLabel);
sname = new JTextField();
sname.setBounds(84, 21, 194, 21);
panel.add(sname);
sname.setColumns(10);
JLabel sexLabel = new JLabel("性别：");
sexLabel.setBounds(29, 58, 45, 15);
panel.add(sexLabel);
age = new JTextField();
age.setBounds(214, 52, 66, 21);
panel.add(age);
age.setColumns(10);
String[] sex = new String[] { "男", "女" };
sexComboBox = new JComboBox(sex);
sexComboBox.setBounds(84, 52, 55, 21);
panel.add(sexComboBox);
JLabel ageLabel = new JLabel("年龄：");
ageLabel.setBounds(159, 58, 45, 15);
panel.add(ageLabel);
JLabel deptLabel = new JLabel("\u73ED\u7EA7\uFF1A");
deptLabel.setBounds(29, 198, 45, 15);
panel.add(deptLabel);
checkBox = new JCheckBox("旅游"); // 添加复选框
checkBox.setBounds(84, 106, 63, 23);
panel.add(checkBox);
checkBox_1 = new JCheckBox("看书"); // 添加复选框
checkBox_1.setBounds(149, 106, 63, 23);
panel.add(checkBox_1);
checkBox_2 = new JCheckBox("上网"); // 添加复选框
checkBox_2.setBounds(84, 143, 63, 23);
panel.add(checkBox_2);
checkBox_3 = new JCheckBox("音乐"); // 添加复选框
checkBox_3.setBounds(214, 106, 103, 23);
panel.add(checkBox_3);
checkBox_4 = new JCheckBox("羽毛球"); // 添加复选框
checkBox_4.setBounds(149, 143, 66, 23);
panel.add(checkBox_4);
checkBox_5 = new JCheckBox("乒乓球"); // 添加复选框
checkBox_5.setBounds(214, 143, 74, 23);
panel.add(checkBox_5);
sclass = new JTextField();
sclass.setBounds(84, 195, 194, 21);
panel.add(sclass);
sclass.setColumns(10);
JButton insertButton = new JButton("添加");
insertButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
do_insertButton_actionPerformed(arg0);
}
});
insertButton.setBounds(84, 281, 66, 23);
panel.add(insertButton);
JButton closeButton = new JButton("关闭");
closeButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
do_closeButton_actionPerformed(arg0);
}
});
closeButton.setBounds(159, 281, 66, 23);
panel.add(closeButton);
JLabel label = new JLabel("\u7231\u597D\uFF1A");
label.setBounds(29, 110, 54, 15);
panel.add(label);
}
// 关闭按钮的单击事件
protected void do_closeButton_actionPerformed(ActionEvent arg0) {
this.setVisible(false);
}
// 添加按钮的单击事件
protected void do_insertButton_actionPerformed(ActionEvent arg0) {
StuDao dao = new StuDao();
Students stu = new Students();
if (checkBox.isSelected()) {
buff.append(checkBox.getText() + "、");
}
if (checkBox_1.isSelected()) {
buff.append(checkBox_1.getText() + "、");
}
if (checkBox_2.isSelected()) {
buff.append(checkBox_2.getText() + "、");
}
if (checkBox_3.isSelected()) {
buff.append(checkBox_3.getText() + "、");
}
if (checkBox_4.isSelected()) {
buff.append(checkBox_4.getText() + "、");
}
if (checkBox_5.isSelected()) {
buff.append(checkBox_5.getText() + "、");
}
String strLoves = buff.toString();
stu.setSname(sname.getText());
stu.setSex(sexComboBox.getSelectedItem().toString());
stu.setAge(Integer.parseInt(age.getText()));
stu.setSclass(sclass.getText());
stu.setHobby(strLoves);
if (!(sname.getText().equals(""))
&& (!sclass.getText().equals(""))
&& (!age.getText().equals(""))) {
dao.addusers(stu);
JOptionPane.showMessageDialog(getContentPane(), "数据添加成功！", "信息提示框",
JOptionPane.WARNING_MESSAGE);
} else {
JOptionPane.showMessageDialog(getContentPane(), "请将信息添加完整！",
"信息提示框", JOptionPane.WARNING_MESSAGE);
}
}
}
UpdateStuFrame.java:
package cn.frame.www;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;
import cn.dao.www.StuDao;
import cn.model.www.Students;
import cn.model.www.UpDateNumber;
public class UpdateStuFrame extends JDialog {
private JPanel contentPane;
private JTextField sname;
private JTextField age;
private JTextField sclass;
private JComboBox sexComboBox;
JCheckBox checkBox, checkBox_1, checkBox_2, checkBox_3;
private JTextField userNameTextField;
private JCheckBox checkBox_4;
private JCheckBox checkBox_5;
StringBuffer buff = new StringBuffer();
StuDao dao = new StuDao();
int id=UpDateNumber.getN();
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
UpdateStuFrame frame = new UpdateStuFrame();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public UpdateStuFrame() {
setModal(true);
setResizable(false);
setModalExclusionType(ModalExclusionType.TOOLKIT_EXCLUDE);
setBounds(100, 100, 329, 380);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
setTitle("添加学生信息");
JPanel panel = new JPanel();
panel.setBounds(0, 0, 325, 356);
contentPane.add(panel);
panel.setLayout(null);
JLabel nameLabel = new JLabel("姓名：");
nameLabel.setBounds(29, 64, 45, 15);
panel.add(nameLabel);
sname = new JTextField();
sname.setBounds(84, 61, 194, 21);
panel.add(sname);
sname.setColumns(10);
JLabel sexLabel = new JLabel("性别：");
sexLabel.setBounds(29, 110, 45, 15);
panel.add(sexLabel);
age = new JTextField();
age.setBounds(204, 107, 66, 21);
panel.add(age);
age.setColumns(10);
String[] sex = new String[] { "男", "女" };
sexComboBox = new JComboBox(sex);
sexComboBox.setBounds(84, 107, 55, 21);
panel.add(sexComboBox);
JLabel ageLabel = new JLabel("年龄：");
ageLabel.setBounds(149, 110, 45, 15);
panel.add(ageLabel);
JLabel deptLabel = new JLabel("\u73ED\u7EA7\uFF1A");
deptLabel.setBounds(29, 241, 45, 15);
panel.add(deptLabel);
checkBox = new JCheckBox("旅游"); // 添加复选框
checkBox.setBounds(84, 155, 63, 23);
panel.add(checkBox);
checkBox_1 = new JCheckBox("看书"); // 添加复选框
checkBox_1.setBounds(149, 155, 63, 23);
panel.add(checkBox_1);
checkBox_2 = new JCheckBox("上网"); // 添加复选框
checkBox_2.setBounds(84, 191, 63, 23);
panel.add(checkBox_2);
checkBox_3 = new JCheckBox("音乐"); // 添加复选框
checkBox_3.setBounds(214, 155, 103, 23);
panel.add(checkBox_3);
checkBox_4 = new JCheckBox("羽毛球"); // 添加复选框
checkBox_4.setBounds(149, 191, 66, 23);
panel.add(checkBox_4);
checkBox_5 = new JCheckBox("乒乓球"); // 添加复选框
checkBox_5.setBounds(214, 191, 74, 23);
panel.add(checkBox_5);
sclass = new JTextField();
sclass.setBounds(84, 238, 194, 21);
panel.add(sclass);
sclass.setColumns(10);
JButton insertButton = new JButton("\u4FEE\u6539");
insertButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
do_insertButton_actionPerformed(arg0);
}
});
insertButton.setBounds(84, 306, 66, 23);
panel.add(insertButton);
JButton closeButton = new JButton("关闭");
closeButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
do_closeButton_actionPerformed(arg0);
}
});
closeButton.setBounds(160, 306, 66, 23);
panel.add(closeButton);
JLabel label = new JLabel("\u7231\u597D\uFF1A");
label.setBounds(29, 159, 54, 15);
panel.add(label);
JLabel label_1 = new JLabel("\u5B66\u53F7\uFF1A");
label_1.setBounds(29, 28, 45, 15);
panel.add(label_1);
JLabel stuid = new JLabel(UpDateNumber.getN()+"");
stuid.setBounds(84, 28, 84, 15);
panel.add(stuid);
// 获得要修改的学生信息
Students stu=dao.getOne(id);
sname.setText(stu.getSname());
age.setText(stu.getAge()+"");
sclass.setText(stu.getSclass());
String[] hy=stu.getHobby().split("、");
if(hy.length>0){
for(int i=0;i<hy.length;i++){ // 为爱好赋值
if(hy[i].equals("旅游")){
checkBox.setSelected(true);
}
if(hy[i].equals("看书")){
checkBox_1.setSelected(true);
}
if(hy[i].equals("上网")){
checkBox_2.setSelected(true);
}
if(hy[i].equals("音乐")){
checkBox_3.setSelected(true);
}
if(hy[i].equals("羽毛球")){
checkBox_4.setSelected(true);
}
if(hy[i].equals("乒乓球")){
checkBox_5.setSelected(true);
}
}
}
if("男".equals(stu.getSex())){ // 为性别赋值
sexComboBox.setSelectedIndex(0);
}else{
sexComboBox.setSelectedIndex(1);
}
}
// 关闭按钮的单击事件
protected void do_closeButton_actionPerformed(ActionEvent arg0) {
this.setVisible(false);
}
// 添加按钮的单击事件
protected void do_insertButton_actionPerformed(ActionEvent arg0) {
StuDao dao = new StuDao();
Students stu = new Students();
if (checkBox.isSelected()) {
buff.append(checkBox.getText() + "、");
}
if (checkBox_1.isSelected()) {
buff.append(checkBox_1.getText() + "、");
}
if (checkBox_2.isSelected()) {
buff.append(checkBox_2.getText() + "、");
}
if (checkBox_3.isSelected()) {
buff.append(checkBox_3.getText() + "、");
}
if (checkBox_4.isSelected()) {
buff.append(checkBox_4.getText() + "、");
}
if (checkBox_5.isSelected()) {
buff.append(checkBox_5.getText() + "、");
}
String strLoves = buff.toString();
stu.setSname(sname.getText());
stu.setSex(sexComboBox.getSelectedItem().toString());
stu.setAge(Integer.parseInt(age.getText()));
stu.setSclass(sclass.getText());
stu.setHobby(strLoves);
if (!(sname.getText().equals("")) && (!sclass.getText().equals(""))
&& (!age.getText().equals(""))) {
dao.updateusers(stu,id);
JOptionPane.showMessageDialog(getContentPane(), "数据修改成功！", "信息提示框",
JOptionPane.WARNING_MESSAGE);
} else {
JOptionPane.showMessageDialog(getContentPane(), "请将信息添加完整！",
"信息提示框", JOptionPane.WARNING_MESSAGE);
}
}
}
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