borbookfrm.java

这个学期完成的图书管理系统

import java.util.*;
import java.awt.*;
import java.io.*;
import java.net.*;
import java.sql.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.Date;
class Borbookfrm extends JFrame implements ActionListener
{
	JLabel l_msg,l_studentname,l_bookname,l_data,l_beizhu;
	JTextField t_studentname,t_bookname,t_data,t_beizhu;
	JButton b_enter,b_clear,b_back;
	JPanel pan1,pan2,pan3,pan4,pan5,pan6;
	Date d;
	NetConn sql;
	Statement sqll;
	
	Borbookfrm()
	{
		l_msg      =new JLabel("借书窗口    ");
		l_studentname     =new JLabel("借阅者：");
		l_bookname =new JLabel("书  名：");
		l_data     =new JLabel("日  期：");
		l_beizhu   =new JLabel("备  注：");
		t_studentname   =new JTextField("",11);
		t_bookname =new JTextField("",11);
		t_data     =new JTextField("",11);
		d=new Date();
		t_data.setText(d.toLocaleString());
		t_beizhu   =new JTextField("",11);
		b_enter    =new JButton("确定");
		b_clear    =new JButton("清除");
		b_back     =new JButton("返回");
		b_enter.addActionListener(this);
		b_clear.addActionListener(this);
		b_back.addActionListener(this);
		pan1=new JPanel();pan2=new JPanel();pan3=new JPanel
();pan4=new JPanel();pan5=new JPanel();pan6=new JPanel();
		pan1.add(l_msg);pan2.add(l_studentname);pan2.add
(t_studentname);pan3.add(l_bookname);pan3.add(t_bookname);
		pan4.add(l_data);pan4.add(t_data);pan5.add
(l_beizhu);pan5.add(t_beizhu);pan6.add(b_enter);pan6.add
(b_clear);pan6.add(b_back);
		setLayout(new GridLayout(6,1));
		add(pan1);add(pan2);add(pan3);add(pan4);add(pan5);add
(pan6);
		
		sql=new NetConn();
		
		setBounds(400,100,400,500);
		
		
	}
	public void actionPerformed(ActionEvent ed)
	{
		if(ed.getSource()==b_back)
		{
			
				dispose();
		}
		else if(ed.getSource()==b_clear)
		{
			t_studentname.setText("");t_beizhu.setText
("");t_bookname.setText("");
		}
		else if(ed.getSource()==b_enter)
		{
			try{
                         sqll=sql.connect();
                        String s1="'"+t_studentname .getText().trim()+"'";
                           String s2="'"+t_bookname .getText().trim()+"'";
                          String s3="'"+t_data .getText().trim()+"'";  
                             String s4="'"+t_beizhu .getText().trim()+"'";
                           String s5="'"+"n"+"'";
                            l_msg.setText("1");
                            String temp="insert into bookbrowse(studentname,bookname,borrowdata,beizhu,isreturn) values("+s1+","+s2+","+s3+","+s4+","+s5+")";
                               sqll.executeUpdate(temp);
				 l_msg.setText("用户借书成功");
                        }
                      catch(SQLException er){
                      }
                      }
                    
		}
	}