本文的目的就是通过图书管理系统掌握数据库编程技术，能正确连接数据库，能对数据库中信息进行查询、插入、删除、修改。
内容：在数据库中创建一张书目信息表，包括书名、作者、出版社、出版日期、书号、价格字段。设计一个GUI界面进行书目管理。在该界面上有四个选项卡，分别是查询、插入、删除、修改。点击查询选项卡，出现的界面上有书名、作者、出版社、书号四个文本框，一个按钮和一个只读文本区。文本框内容可以为空，输入相应的查询信息后（例如根据书名查询可以仅输入书名），点击界面上的“查询”按钮，可以在界面下方的文本区中显示出符合条件的书目详细信息。点击插入选项卡，出现的界面上有书名、作者、出版社、出版日期、书号、价格文本框，一个按钮。在文本框中输入信息后，点击“插入”按钮，该书目信息插入数据库表中。点击删除选项卡，出现的界面上有书名文本框和一个按钮，输入书名后点击“删除”按钮，该书目信息从数据库表中删除。点击修改选项卡，出现的界面上有书名、作者、出版社、出版日期、书号、价格文本框，一个按钮。输入的书名必须是已存在的，否则会弹出消息框显示出错信息。输入信息后，点击“修改”按钮，数据库表中的相应书目信息被修改为新值。
源码：
BookInfo.java
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* 项目名称:图书管理系统
* 版本: 1.0
* 创建者: 张俊强
* 创建时间:2016/5/26
* */
package librarySystem;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.sql.*;
@SuppressWarnings("serial")
public class BookInfo extends JFrame implements ActionListener{
//主角面上的控件
private JLabel inputLabel;
private JTextField inputText;
private JButton searchBut;
private JTable bookTable;
private JScrollPane bookScroll;
private JButton addBut;
private JButton modifyBut;
private JButton deleteBut;
private JButton refreshBut;
private BookTableModel bookTableModel;
public static void main(String[] args) throws SQLException {
// TODO Auto-generated method stub
BookInfo bookInfo=new BookInfo();
bookInfo.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
bookInfo.setBounds(350, 150, 600, 400);
bookInfo.setVisible(true);
// bookInfo.importSQL();//导出数据
bookInfo.setMinWindowLayout();//设置数据
}
public BookInfo() throws SQLException{
//创建主界面上的控件
inputLabel=new JLabel("请输入书名:");
inputText=new JTextField(10);
searchBut=new JButton("查询");
bookTableModel=new BookTableModel();
bookTable=new JTable(bookTableModel);
bookScroll=new JScrollPane(bookTable);
addBut=new JButton("添加");
modifyBut=new JButton("修改");
deleteBut=new JButton("删除");
refreshBut=new JButton("刷新");
searchBut.addActionListener(this);
addBut.addActionListener(this);
refreshBut.addActionListener(this);
modifyBut.addActionListener(this);
deleteBut.addActionListener(this);
}
void setMinWindowLayout(){
//主界面布局
Container con1=new Container();
con1.setLayout(new FlowLayout());
con1.add(inputLabel);
con1.add(inputText);
con1.add(searchBut);
con1.add(refreshBut);
Container con2=new Container();
con2.setLayout(new FlowLayout());
con2.add(addBut);
con2.add(modifyBut);
con2.add(deleteBut);
this.setLayout(new BorderLayout());
this.add(con1,BorderLayout.NORTH);
this.add(bookScroll,BorderLayout.CENTER);
this.add(con2,BorderLayout.SOUTH);
this.validate();
}
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
if(e.getSource()==searchBut){
if(!this.inputText.getText().equals("")){
String bookName=this.inputText.getText();
String sql="SELECT * FROM book_info WHERE book_name ='"+bookName+"'";
try {
bookTableModel=new BookTableModel(sql);
bookTable.setModel(bookTableModel);
} catch (SQLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}else{
JOptionPane.showMessageDialog(this,"输入不能为空", "提示",JOptionPane.PLAIN_MESSAGE);
}
}
else if(e.getSource()==addBut){
@SuppressWarnings("unused")
AddBookDialog addWin=new AddBookDialog(this,"添加图书",true);
this.refreshTable();
}
else if(e.getSource()==refreshBut){
this.refreshTable();
}
else if(e.getSource()==deleteBut){
int rowNum=bookTable.getSelectedRow();
if(rowNum<0||rowNum>bookTable.getRowCount()){
JOptionPane.showMessageDialog(this,"未选中", "提示",JOptionPane.PLAIN_MESSAGE);
}
else{
//System.out.print(bookName);
int n = JOptionPane.showConfirmDialog(null, "确认删除吗?", "确认删除框", JOptionPane.YES_NO_OPTION);
if (n == JOptionPane.YES_OPTION) {
String bookNum=(String) bookTable.getValueAt(rowNum, 0);
String sql="DELETE FROM book_info WHERE book_num= '"+bookNum+"'";
bookTableModel.deleteBook(sql);
this.refreshTable();
JOptionPane.showMessageDialog(this,"删除成功", "提示",JOptionPane.PLAIN_MESSAGE);
} else if (n == JOptionPane.NO_OPTION) {
return;
}
}
}
else if(e.getSource()==modifyBut){
bookTable.setModel(bookTableModel);
int rowNum=bookTable.getSelectedRow();
if(rowNum<0||rowNum>bookTable.getRowCount()){
JOptionPane.showMessageDialog(this,"未选中", "提示",JOptionPane.PLAIN_MESSAGE);
}
else{
@SuppressWarnings("unused")
ModifyBook modifyWin=new ModifyBook(this,"修改信息",true,bookTableModel,rowNum);
this.refreshTable();
}
}
}
public void refreshTable(){
BookTableModel searchBook;
try {
searchBook = new BookTableModel("SELECT * FROM book_info");
bookTable.setModel(searchBook);
bookTableModel=searchBook;
} catch (SQLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
}
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BookTableModel.java
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package librarySystem;
import java.sql.*;
import java.util.*;
/*
* 图书表模型
* */
import javax.swing.table.*;
@SuppressWarnings("serial")
public class BookTableModel extends AbstractTableModel{
//表的元素
private Vector<Vector<String>> rowData;
private Vector<String> colName;
// 数据库
private PreparedStatement stmt;
private ResultSet result;
public BookTableModel(String sql) throws SQLException{
this.initData(sql);
}
public BookTableModel() throws SQLException{
this.initData("SELECT * FROM book_info");
}
public void initData(String sql) throws SQLException{
setRowData(new Vector<Vector<String>>());
setColName(new Vector<String>());
getColName().add("书号");
getColName().add("书名");
getColName().add("作者");
getColName().add("出版社");
getColName().add("出版时间");
getColName().add("价格");
/*
* 数据库的导入
* */
try {
Class.forName("com.mysql.jdbc.Driver");
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
String url= "jdbc:mysql://localhost:3306/device";
String user="root";
String password="zjq1314520";
Connection con=DriverManager.getConnection(url,user,password);
stmt = con.prepareStatement(sql);
result=stmt.executeQuery();
importSQL();
}
void importSQL() throws SQLException{
// TODO Auto-generated method stub
@SuppressWarnings("unused")
boolean signNull=true;
while(result.next()){
Vector<String> item=new Vector<String>();
for(int i=1;i<7;i++){
item.add(result.getString(i));
}
getRowData().add(item);
signNull=false;
}
result.close();
}
@Override
public int getColumnCount() {//得到列数
// TODO Auto-generated method stub
return this.colName.size();
}
@Override
public int getRowCount() {//得到行数
// TODO Auto-generated method stub
return this.rowData.size();
}
@Override
public Object getValueAt(int row, int col) {//得到某行某列的数据
// TODO Auto-generated method stub
return (this.rowData.get(row)).get(col);
}
@Override
public String getColumnName(int column) {
// TODO Auto-generated method stub
return this.colName.get(column);
}
public Vector<Vector<String>> getRowData() {
return rowData;
}
public void setRowData(Vector<Vector<String>> rowData) {
this.rowData = rowData;
}
public Vector<String> getColName() {
return colName;
}
public void setColName(Vector<String> colName) {
this.colName = colName;
}
public void addBook(String sql){
try {
stmt.executeUpdate(sql);
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// initData("SELECT * FROM book_info");
}
public void deleteBook(String sql){
try {
stmt.executeUpdate(sql);
} catch (SQLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
}
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AddBookDialog.java
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package librarySystem;
import java.awt.*;
import java.awt.event.*;
import java.sql.SQLException;
import javax.swing.*;
@SuppressWarnings("serial")
public class AddBookDialog extends JDialog implements ActionListener{
private JLabel bookNumLabel;
private JLabel bookNameLabel;
private JLabel bookWriterLabel;
private JLabel bookPublishLabel;
private JLabel bookPriceLabel;
private JLabel bookTimeLabel;
private JTextField bookNumText;
private JTextField bookNameText;
private JTextField bookWriterText;
private JTextField bookPublishText;
private JTextField bookPriceText;
private JTextField bookTimeText;
private JButton submitBut;
private JButton cancelBut;
public AddBookDialog(Frame owner,String title,boolean model){
//父窗口,窗口名,是否是模式窗口
super(owner,title,model);
bookNumLabel=new JLabel("书 号:");
bookNameLabel=new JLabel("书 名:");
bookWriterLabel=new JLabel("作 者:");
bookPublishLabel=new JLabel("出版社:");
bookPriceLabel=new JLabel("价 格:");
bookTimeLabel=new JLabel("出版时间:");
bookNumText=new JTextField(10);
bookNameText=new JTextField(10);
bookWriterText=new JTextField(10);
bookPublishText=new JTextField(10);
bookPriceText=new JTextField(10);
bookTimeText=new JTextField(9);
submitBut=new JButton("确认");
cancelBut=new JButton("取消");
submitBut.addActionListener(this);
cancelBut.addActionListener(this);
this.setBounds(350,150,400,260);
this.setResizable(false);
this.setLayout(new BorderLayout());
initLayout();
}
public void initLayout(){
Container[] con1=new Container[6];
for(int i=0;i<6;i++) con1[i]=new Container();
con1[0].setLayout(new FlowLayout());
con1[0].add(bookNumLabel);
con1[0].add(bookNumText);
con1[1].setLayout(new FlowLayout());
con1[1].add(bookNameLabel);
con1[1].add(bookNameText);
con1[2].setLayout(new FlowLayout());
con1[2].add(bookWriterLabel);
con1[2].add(bookWriterText);
con1[3].setLayout(new FlowLayout());
con1[3].add(bookPublishLabel);
con1[3].add(bookPublishText);
con1[4].setLayout(new FlowLayout());
con1[4].add(bookPriceLabel);
con1[4].add(bookPriceText);
con1[5].setLayout(new FlowLayout());
con1[5].add(bookTimeLabel);
con1[5].add(bookTimeText);
Container con2=new Container();
con2.setLayout(new BorderLayout());
con2.add(con1[0],BorderLayout.NORTH);
con2.add(con1[1],BorderLayout.CENTER);
con2.add(con1[2],BorderLayout.SOUTH);
Container con3=new Container();
con3.setLayout(new BorderLayout());
con3.add(con1[3],BorderLayout.NORTH);
con3.add(con1[4],BorderLayout.CENTER);
con3.add(con1[5],BorderLayout.SOUTH);
Container con4=new Container();
con4.setLayout(new FlowLayout());
con4.add(submitBut);
con4.add(cancelBut);
Container con5=new Container();
con5.setLayout(new BorderLayout());
con5.add(con2,BorderLayout.NORTH);
con5.add(con3,BorderLayout.CENTER);
con5.add(con4,BorderLayout.SOUTH);
this.add(con5,BorderLayout.CENTER);
this.validate();
this.setVisible(true);
}
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
if(e.getSource()==submitBut){
if(bookNumText.getText().equals("")||bookNameText.getText().equals("")||
bookWriterText.getText().equals("")||bookPublishText.getText().equals("")||
bookPriceText.getText().equals("")||bookTimeText.getText().equals("")){
//System.out.println("输入失败");
JOptionPane.showMessageDialog(this,"输入不能有空", "提示",JOptionPane.PLAIN_MESSAGE);
}
else{
//System.out.println("输入成功");
String sql="insert into "
+ "book_info(book_num,book_name,book_writer,publish_house,book_price,publish_time)"
+ "values('"+bookNumText.getText()+"','"+bookNameText.getText()+"','"+bookWriterText.getText()+"','"+bookPublishText.getText()+"','"+bookPriceText.getText()+"','"+bookTimeText.getText()+"')";
try {
BookTableModel book=new BookTableModel();
book.addBook(sql);
} catch (SQLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
JOptionPane.showMessageDialog(this,"添加成功", "提示",JOptionPane.PLAIN_MESSAGE);
this.setVisible(false);
}
}
if(e.getSource()==cancelBut){
this.setVisible(false);
}
}
}
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ModifyBook.java
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package librarySystem;
import java.awt.*;
import java.awt.event.*;
import java.sql.SQLException;
import javax.swing.*;
@SuppressWarnings("serial")
public class ModifyBook extends JDialog implements ActionListener{
private JLabel bookNumLabel;
private JLabel bookNameLabel;
private JLabel bookWriterLabel;
private JLabel bookPublishLabel;
private JLabel bookPriceLabel;
private JLabel bookTimeLabel;
private JTextField bookNumText;
private JTextField bookNameText;
private JTextField bookWriterText;
private JTextField bookPublishText;
private JTextField bookPriceText;
private JTextField bookTimeText;
private JButton submitBut;
private JButton cancelBut;
private BookTableModel bookModel;
private int rowNum;
public ModifyBook(Frame owner,String title,boolean type,BookTableModel model,int row){
super(owner,title,type);
bookModel=model;
rowNum=row;
bookNumLabel=new JLabel("书 号:");
bookNameLabel=new JLabel("书 名:");
bookWriterLabel=new JLabel("作 者:");
bookPublishLabel=new JLabel("出版社:");
bookPriceLabel=new JLabel("价 格:");
bookTimeLabel=new JLabel("出版时间:");
bookNumText=new JTextField(10);
bookNameText=new JTextField(10);
bookWriterText=new JTextField(10);
bookPublishText=new JTextField(10);
bookPriceText=new JTextField(10);
bookTimeText=new JTextField(9);
submitBut=new JButton("确认修改");
cancelBut=new JButton("取消");
submitBut.addActionListener(this);
cancelBut.addActionListener(this);
this.setBounds(350,150,400,260);
this.setResizable(false);
this.setLayout(new BorderLayout());
this.setValue();
this.initLayout();
}
public void initLayout(){
Container[] con1=new Container[6];
for(int i=0;i<6;i++) con1[i]=new Container();
con1[0].setLayout(new FlowLayout());
con1[0].add(bookNumLabel);
con1[0].add(bookNumText);
con1[1].setLayout(new FlowLayout());
con1[1].add(bookNameLabel);
con1[1].add(bookNameText);
con1[2].setLayout(new FlowLayout());
con1[2].add(bookWriterLabel);
con1[2].add(bookWriterText);
con1[3].setLayout(new FlowLayout());
con1[3].add(bookPublishLabel);
con1[3].add(bookPublishText);
con1[4].setLayout(new FlowLayout());
con1[4].add(bookPriceLabel);
con1[4].add(bookPriceText);
con1[5].setLayout(new FlowLayout());
con1[5].add(bookTimeLabel);
con1[5].add(bookTimeText);
Container con2=new Container();
con2.setLayout(new BorderLayout());
con2.add(con1[0],BorderLayout.NORTH);
con2.add(con1[1],BorderLayout.CENTER);
con2.add(con1[2],BorderLayout.SOUTH);
Container con3=new Container();
con3.setLayout(new BorderLayout());
con3.add(con1[3],BorderLayout.NORTH);
con3.add(con1[4],BorderLayout.CENTER);
con3.add(con1[5],BorderLayout.SOUTH);
Container con4=new Container();
con4.setLayout(new FlowLayout());
con4.add(submitBut);
con4.add(cancelBut);
Container con5=new Container();
con5.setLayout(new BorderLayout());
con5.add(con2,BorderLayout.NORTH);
con5.add(con3,BorderLayout.CENTER);
con5.add(con4,BorderLayout.SOUTH);
this.add(con5,BorderLayout.CENTER);
this.validate();
this.setVisible(true);
}
public void setValue(){
this.bookNumText.setText((String) bookModel.getValueAt(rowNum, 0));
this.bookNumText.setEditable(false);
this.bookNameText.setText((String) bookModel.getValueAt(rowNum, 1));
this.bookWriterText.setText((String) bookModel.getValueAt(rowNum, 2));
this.bookPublishText.setText((String) bookModel.getValueAt(rowNum, 3));
this.bookTimeText.setText((String) bookModel.getValueAt(rowNum, 4));
this.bookPriceText.setText((String) bookModel.getValueAt(rowNum, 5));
this.validate();
}
@Override
public void actionPerformed(ActionEvent e) {
// System.out.println(bookPriceText.getText());
// TODO Auto-generated method stub
if(e.getSource()==submitBut){
if(bookNumText.getText().equals("")||bookNameText.getText().equals("")||
bookWriterText.getText().equals("")||bookPublishText.getText().equals("")||
bookPriceText.getText().equals("")||bookTimeText.getText().equals("")){
//System.out.println("输入失败");
JOptionPane.showMessageDialog(this,"修改不能有空", "提示",JOptionPane.PLAIN_MESSAGE);
}
else{
int n = JOptionPane.showConfirmDialog(null, "确认修改吗?", "确认修改框", JOptionPane.YES_NO_OPTION);
if (n == JOptionPane.YES_OPTION) {
String sql="UPDATE book_info SET book_name ='"+bookNameText.getText()+"', book_writer= '"+bookWriterText.getText()+"',publish_house='"+bookPublishText.getText()+"',book_price='"+bookPriceText.getText()+"',publish_time='"+bookTimeText.getText()+"' WHERE book_num = '"+bookNumText.getText()+"' ";
try {
BookTableModel book=new BookTableModel();
book.addBook(sql);
} catch (SQLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
JOptionPane.showMessageDialog(this,"修改成功", "提示",JOptionPane.PLAIN_MESSAGE);
this.setVisible(false);
} else if (n == JOptionPane.NO_OPTION) {
return;
}
}
}
if(e.getSource()==cancelBut){
this.setVisible(false);
}
}
}
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程序运行结果：主界面：
查询界面：
添加图书界面：
修改界面：
删除操作：
数据库界面：
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。