简易图书管理系统

本程序以java为设计语言，能够实现一个简单的图书管理系统，可以实现简单的增加图书，查询图书，删除图书的功能，其中用到数据库的连接，窗体的布局管理。

本程序有以下几个功能函数组成所有模块都在名为bookmanager的包中1：主函数mainframe.java2：增加模块adddialog.java3:查询模块searchdialog.java4:查询结果模块searchresult.java5:书本类book.java6：数据库连接类dbcon.java1.主界面2.添加模块3.查询模块4.输出模块5.6.源程序如下1.mainframe.javapackage bookmanager;import javax.swing.*;import javax.swing.table.DefaultTableModel;import java.awt.*;import java.awt.event.*;import java.sql.Connection;import java.sql.PreparedStatement;import java.sql.ResultSet;.import java.sql.SQLException;import java.util.LinkedList;public class mainframe extends JFrame implements ActionListener{ private JToolBar tb;String []btntitle={"增加","查询","删除","退出"};String []tabeltitle={"图书编号","书名","定价","出版社"};JButton btn[]=new JButton[4];JTable table;DefaultTableModel model;public mainframe(){super("图书管理系统");//初始化各个按钮tb=new JToolBar("工具栏");for(int i=0;i<btntitle.length;i++){btn[i]=new JButton(btntitle[i]);btn[i].addActionListener(this);tb.add(btn[i]);}//创建表模型model=new DefaultTableModel(tabeltitle,10);table=new JTable(model);//设定单元格的高度table.setRowHeight(25);add(tb,BorderLayout.NORTH );add(new JScrollPane(table),BorderLayout.CENTER );setSize(900,600);setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE );setLocation(100,30);init();}public void actionPerformed(ActionEvent e){mainframe m=new mainframe();Object o=e.getSource();{if(o==btn[0]){adddialog ad=new adddialog(m,25,25);init();}if(o==btn[1]){searchdialog sd=new searchdialog(m,25,25);sd.dialog.setVisible(true);init();}if(o==btn[2]){.int result=JOptionPane.showConfirmDialog(null,"确实要删除该条图书信息吗？","确认",JOptionPane.YES_NO_OPTION ,JOptionPane.QUESTION_MESSAGE );if(result==0){Connection con=dbcon.getconnectin();Object ob=model.getValueAt(table.getSelectedRow(),0);dbcon.delete(con,ob);init();}else {return ;}}if(o==btn[3]){System.exit(0);}}}public void init(){Connection con=dbcon.getconnectin();LinkedList list=null;try {PreparedStatement stmt=con.prepareStatement("select * from book");ResultSet rs=stmt.executeQuery();list=new LinkedList();while(rs.next()){String id=rs.getString(1);String name=rs.getString(2);String price=rs.getString(3);String publish=rs.getString(4);book b=new book(id,name,Float.valueOf(price),publish);list.add(b);}model.setRowCount(0);for(int i=0;i<list.size();i++){book b=(book)list.get(i);Object[]str={b.getid(),b.getname(),b.getprice(),b.getpublish()};model.addRow(str);}} catch (SQLException e) {// TODO Auto-generated catch blocke.printStackTrace();.}}public static void main(String args[]){new mainframe().show();}}******************************************************************************************************************2.Adddialog.java添加模块package bookmanager;import java.awt.*;import java.awt.event.*;import java.util.LinkedList;import javax.swing.*;public class adddialog implements ActionListener {JLabel label[]=new JLabel[4];JTextField txt[]=new JTextField[4];String [] ltitle={"图书编号","图书名称","单价","出版社"};String []btitle={"上一个","下一个","确定","取消"};JButton btn[]=new JButton[4];JDialog dialog;JPanel p;LinkedList list;public adddialog(JFrame f,int x,int y){dialog=new JDialog(f,"增加",true);dialog.setLocation(x,y);p=new JPanel();list=new LinkedList();// p.setBorder(BorderFactory.createTitledBorder("请选择操作"));// p.setBorder(BorderFactory.createLineBorder(Color.red ));// p.setBorder(BorderFactory.createBevelBorder(0, Color.red ,Color.green ));p.setBorder(BorderFactory.createBevelBorder(0, Color.red ,Color.green , Color.blue , Color.yellow ));for(int i=0;i<ltitle.length ;i++){label[i]=new JLabel(ltitle[i]);label[i].setFont(new Font("宋体",Font.PLAIN ,18));txt[i]=new JTextField();btn[i]=new JButton(btitle[i]);btn[i].addActionListener(this);btn[i].setFont(new Font("幼圆",Font.PLAIN ,15));dialog.add(label[i]);dialog.add(txt[i]);dialog.add(btn[i]);}dialog.setLayout(null);p.setBounds(10,150,310,160);p.setBackground(Color.green );label[0].setBounds(10,10,90,25);txt[0].setBounds(110,10,200,25);label[1].setBounds(10,45,90,25);txt[1].setBounds(110,45,200,25);label[2].setBounds(10,80,90,25);txt[2].setBounds(110,80,200,25);label[3].setBounds(10,115,90,25);txt[3].setBounds(110,115,200,25) ;dialog.add(p);btn[0].setBounds(60,180,80,25);btn[1].setBounds(175,180,80,25);btn[2].setBounds(60,250,80,25);btn[3].setBounds(175,250,80,25);dialog.setSize(400,400);dialog.show();dialog.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE );}public void actionPerformed(ActionEvent e){int size=list.size();// init();// list.add(b);// if(e.getSource()==btn[0]){//// book b1=(book)list.get(size);// size--;// txt[0].setText(b1.getid());// txt[1].setText(b1.getname());// txt[2].setText(Float.toString(b1.getprice()));// txt[3].setText(b1.getpublish());// }// if(e.getSource()==btn[1]){//// book b2=(book)list.get(size);// size++;// txt[0].setText(b2.getid());// txt[1].setText(b2.getname());// txt[2].setText(Float.toString(b2.getprice()));// txt[3].setText(b2.getpublish());// }if(e.getSource()==btn[2]){String id=txt[0].getText();String name=txt[1].getText();float price=getprice(txt[2].getText());String publish=txt[3].getText();Object str[]={id,name,price,publish};dbcon.insert(dbcon.getconnectin(), str);}}private float getprice(String str){float price=0;try{price=Float.valueOf(str);}catch(Exception ex){JOptionPane.showMessageDialog(null,"价格必须是数字，请重新输入!","错误",JOptionPane.WARNING_MESSAGE );}return price;}//设定上一个，下一个按钮的可用性//private void init(){//if(list.size()==0)//{// btn[0].setEnabled(false);// btn[1].setEnabled(false);// }//else{// btn[0].setEnabled(true);// btn[1].setEnabled(true);//}//}}3.searchdialog.java 查找模块package bookmanager;import javax.swing.*;import java.awt.*;import java.awt.event.*;import java.sql.Connection;import java.sql.PreparedStatement;import java.sql.ResultSet;import java.sql.SQLException;import java.util.LinkedList;public class searchdialog implements ActionListener ,ItemListener{ JRadioButton []radio=new JRadioButton[3];ButtonGroup group;String []rtitle={"图书编号","图书名称","出版社"};String []btitle={" 确定(Yes)","取消(Esc)"};JTextField txtfield[]=new JTextField[3];JButton btn[]=new JButton[2];JDialog dialog;searchresult st;public searchdialog(JFrame f,int x,int y){//初始化单选按钮group=new ButtonGroup();st=new searchresult();for(int i=0;i<radio.length;i++){radio[i]=new JRadioButton(rtitle[i]);radio[i].addActionListener(this);radio[i].setFont(new Font("宋体",Font.PLAIN ,15));radio[i].addItemListener(this);group.add(radio[i]);txtfield[i]=new JTextField();txtfield[i].setEditable(false);}for(int i=0;i<2;i++){btn[i]=new JButton(btitle[i]);btn[i].addActionListener(this);btn[i].setFont(new Font("宋体",Font.PLAIN ,15));}dialog =new JDialog(f,"查询",true);//初始化radio[0].setSelected(true);txtfield[0].setEditable(true );dialog.setLocation(x,y);dialog.setLayout(null);//设定各个组件的边界radio[0].setBounds(10,10,90,25);txtfield[0].setBounds(110,10,250, 25);radio[1].setBounds(10,45,90,25);txtfield[1].setBounds(110,45,250, 25);radio[2].setBounds(10,80,90,25);txtfield[2].setBounds(110,80,250, 25);for(int i=0;i<radio.length ;i++){dialog.add(radio[i]);dialog.add(txtfield[i]);}btn[0].setBounds(20,135,120,25);btn[1].setBounds(200,135,120,25);dialog.add(btn[0]);dialog.add(btn[1]);dialog.setSize(400,250);dialog.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE );}public void actionPerformed(ActionEvent e){if(e.getSource()==btn[0]){st.init();Connection con=dbcon.getconnectin();PreparedStatement stmt=null;ResultSet rs=null;LinkedList list=new LinkedList();try {if(radio[0].isSelected()){stmt=con.prepareStatement("select * from book where bid like '%"+txtfield[0].getText().trim()+"%'");}if(radio[1].isSelected()){stmt=con.prepareStatement("select * from book where bname like '%"+txtfield[1].getText().trim()+"%'");}if(radio[2].isSelected()){stmt=con.prepareStatement("select * from book where bpublish like '%"+txtfield[2].getText().trim()+"%'");}rs=stmt.executeQuery();while(rs.next()){String id=rs.getString(1);String name=rs.getString(2);String price=rs.getString(3);String publish=rs.getString(4);.book b=new book(id,name,Float.valueOf(price),publish);list.add(b);}for(int i=0;i<list.size();i++){book b=(book)list.get(i);Objectob[]={b.getid(),b.getname(),b.getprice(),b.getpublish()};st.model.addRow(ob);}JOptionPane.showMessageDialog(null,"总共找到"+list.size()+"条记录!","信息",RMATION_MESSAGE );st.show();} catch (SQLException e1) {// TODO Auto-generated catch blocke1.printStackTrace();}}}public void itemStateChanged(ItemEvent e){for(int i=0;i<radio.length;i++){if(radio[i].isSelected()){txtfield[i].setEditable(true);}else txtfield[i].setEditable(false);}}}4.searchresult.java查找结果package bookmanager;import javax.swing.*;import javax.swing.table.DefaultTableModel;import java.awt.*;import java.awt.event.*;public class searchresult extends JFrame implements ActionListener{ JTable table;DefaultTableModel model;String []rtitle={"图书编号","图书名称","单价","出版社"};JDialog dialog;.public searchresult(){super("查询结果");model=new DefaultTableModel(rtitle,0);table=new JTable(model);add(new JScrollPane(table),BorderLayout.CENTER );table.setRowHeight(25);table.setFont(new Font("楷体",Font.PLAIN ,18));setSize(600,400);}public void init(){model.setRowCount(0);}public void actionPerformed(ActionEvent e){//以后扩展用，暂不实现任何功能}}**************************5.dbcon.java数据库连接类package bookmanager;import java.io.*;import .URL;import java.sql.*;import javax.swing.JOptionPane;public class dbcon {public final static Connection getconnectin(){Connection con=null;try{Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");String url="jdbc:sqlserver://localhost:1433;integratedSecurity=true;";con=DriverManager.getConnection(url);con.setCatalog("book");}catch(ClassNotFoundException ex){ex.printStackTrace();}catch(SQLException ex){ex.printStackTrace();}return con;。