java图形界面以及链接数据库

import java、awt、*;

import java、awt、event、*;

import javax、swing、*;

import java、sql、*;

public class NoteTextArea extends JFrame implements ActionListener

{

private JPanel jp=new JPanel();

private JButton[] jb = new JButton[4];

private JComboBox box;

private JTextArea jt=new JTextArea();

private JScrollPane js=new JScrollPane(jt,ScrollPaneConstants、VERTICAL_SCROLLBAR_ALWAYS,ScrollPaneConstants、HORIZONTAL_SCROLLBAR_NEVER);

private String[] obj;

private JTextField text = new JTextField();

public NoteTextArea()

{

jp、setLayout(null);

String[] obj = new String[]{"微笑","生气","难过","得意"};

box = new JComboBox(obj);

JLabel j1 = new JLabel("留言版");

JLabel j2 = new JLabel("您");

JLabel j3 = new JLabel("地说:");

jb[0] = new JButton("清屏");

jb[1] = new JButton("至顶");

jb[2] = new JButton("至尾");

jb[3] = new JButton("提交");

for(int i = 0;i < 3;i++)

{

jb[i]、setBounds(650,i*75+55,100,50);

}

for(int i = 0;i < 3;i++)

{

jp、add(jb[i]);

}

j1、setBounds(280,10,50,30);

j2、setBounds(20,375,30,50);

box、setBounds(55,385,80,30);

j3、setBounds(160,375,40,50);

text、setBounds(210,385,300,30);

jb[3]、setBounds(520,365,75,50);

js、setBounds(10,50,600,300);

jp、add(j1);

jp、add(j2);

jp、add(j3);

jp、add(box);

jp、add(text);

jp、add(jb[3]);

jp、add(js);

for(int i=0;i<=3;i++)

{

jb[i]、addActionListener(this);

}

jt、setEditable(false);

jt、setLineWrap(true);

jt、setText("留言内容:");

this、add(jp);

this、setTitle("留言版程序");

this、setBounds(100,100,800,500);

this、setVisible(true);

this、setDefaultCloseOperation(JFrame、EXIT_ON_CLOSE);

}

public void actionPerformed(ActionEvent e)

{

if(e、getSource() == jb[0])

{

jt、setText("");

jt、setText("留言内容:");

}

else if(e、getSource() == jb[1])

{

jt、setCaretPosition(0);

}

else if(e、getSource() == jb[2])

{

jt、selectAll();

}

else if(e、getSource() == jb[3])

{

String jt1 = "\n您" + box、getItemAt(box、getSelectedIndex()) + "地说:" + text、getText();

jt、append(jt1);

try

{

Class、forName("sun、jdbc、odbc、JdbcOdbcDriver");

String dbURL ="jdbc:odbc:driver={Microsoft Access Driver (*、mdb)};DBQ=D:\\DB1、mdb";

System、out、println("数据库连接成功！");

Connection conn=DriverManager、getConnection(dbURL);

Statement stmt=conn、createStatement();

stmt、executeUpdate("insert into test1 values('"+jt1+"')");

System、out、println("添加记录:"+ jt1 +"\t成功！");

stmt、close();

conn、close();

}catch(Exception e1)

{

System、out、println("添加到数据库出错");

}

jt、setCaretPosition(jt、getText()、length());

text、setText("");

text、requestFocus();

}

}

public static void main(String[] args)

{

new NoteTextArea();

}

}