一：步骤
1.sql server建立数据库和相关表
2.建立数据源
(1).打开控制面板找到管理，打开ODBC选项或直接搜索数据源
(2).打开数据源配置后点击添加，选择sql server点击完成
(3).给数据源命名，服务器选择本机电脑sql server 服务器名下一步
后面全部点下一步或确定就可以了。
3.代码设计
1.加载数据库驱动
2.与数据源建立连接
3.与数据库建立会话
4.操作数据库
经常使用的一些JDBC URL
JDBC-ODBC:jdbc:odbc:
Oracle:jdbc:oracle:thin:@
DB2:jdbc:db2:MyTest or jdbc.db2://localhost:6789/MyTest(需要用户名和密码)
sql server数据库连接
package mybook;import java.sql.*;import javax.swing.JOptionPane;public class bookdb {
String drivername="sun.jdbc.odbc.JdbcOdbcDriver";//驱动名
Connection conn;
Statement stmt;
ResultSet rs;
bookdb(){ try {
Class.forName(drivername);
conn=DriverManager.getConnection("jdbc:odbc:bookdb","sa","zhangyabiao");//与数据源bookdb建立连接
stmt=conn.createStatement();
} catch (ClassNotFoundException e) { // TODO Auto-generated catch block
e.printStackTrace();
} catch (SQLException e) { // TODO Auto-generated catch block
e.printStackTrace();
}
}
public ResultSet find(String sql){//对数据库进行数据查询
try {
rs=stmt.executeQuery(sql); return rs;
} catch (SQLException e) { // TODO Auto-generated catch block
e.printStackTrace(); return null;
}
} public boolean update(String sql){//对增删改
try {
stmt.executeUpdate(sql); //JOptionPane.showInternalMessageDialog(null, "执行成功");
return true;
} catch (SQLException e) { // TODO Auto-generated catch block
e.printStackTrace(); //JOptionPane.showInternalMessageDialog(null, "执行失败");
return false;
}
}
}
数据库登录验证及账户注册
package mybook;import java.awt.*;import java.awt.event.*;import java.sql.*;import javax.swing.*;
public class denglu extends JFrame implements ActionListener{ JPanel p1,p2,p3; JLabel l1,l2; JTextField f1; JPasswordField f2; JButton b1,b2; ResultSet rs;
bookframe bf;
bookdb b;
zuce z;
denglu(){
b=new bookdb(); this.setLayout(new GridLayout(3,1));
p1=new JPanel();
p2=new JPanel();
p3=new JPanel();
l1=new JLabel("账户：");
l2=new JLabel("密码：");
f1=new JTextField(15);
f2=new JPasswordField(15);
b1=new JButton("登录");
b2=new JButton("注册");
p1.add(l1);
p1.add(f1);
p2.add(l2);
p2.add(f2);
p3.add(b1);
p3.add(b2); this.add(p1); this.add(p2); this.add(p3);
b1.addActionListener(this);
b2.addActionListener(this); this.setBounds(300, 350, 300, 250); this.setVisible(true);
}
public void actionPerformed(ActionEvent e) { // TODO Auto-generated method stub
if(e.getSource()==b1){//账户验证
String sql="select *from yonghu where password='"+f2.getText()+"'";
rs=b.find(sql); try { if(rs.next()){
bf=new bookframe(); this.dispose();//释放窗体
}else{ JOptionPane.showMessageDialog(null, "账户或密码错误，请重新登录");
f1.setText("");
f2.setText("");
}
} catch (SQLException e1) { // TODO Auto-generated catch block
e1.printStackTrace();
}
}else if(e.getSource()==b2){
z=new zuce();//注册账户
}
}
}
账户注册
package mybook;import java.awt.*;import java.awt.event.*;import javax.swing.*;import java.sql.*;
public class zuce extends JFrame implements ActionListener{ JPanel p1,p2,p3; JLabel l1,l2; JTextField f1; JPasswordField f2; JButton b1,b2; ResultSet rs;
bookdb b;
zuce(){
b=new bookdb(); this.setLayout(new GridLayout(3,1));
p1=new JPanel();
p2=new JPanel();
p3=new JPanel();
l1=new JLabel("账户：");
l2=new JLabel("密码：");
f1=new JTextField(15);
f2=new JPasswordField(15);
b1=new JButton("保存");
b2=new JButton("取消");
p1.add(l1);
p1.add(f1);
p2.add(l2);
p2.add(f2);
p3.add(b1);
p3.add(b2); this.add(p1); this.add(p2); this.add(p3);
b1.addActionListener(this);
b2.addActionListener(this); this.setBounds(400, 400, 300,250 ); this.setVisible(true);
}
public void actionPerformed(ActionEvent e) { // TODO Auto-generated method stub
if(e.getSource()==b1){ String sql="insert into yonghu values('"+f1.getText()+"','"+f2.getText()+"')"; if(b.update(sql)){ JOptionPane.showMessageDialog(null, "注册成功"); this.dispose();
}else{ JOptionPane.showMessageDialog(null, "用户已存在");
f1.setText("");
f2.setText("");
}
}else{ this.dispose();
}
}
}
对数据库进行对图书的增删改查
package mybook;import java.sql.*;import java.awt.*;import javax.swing.*;import java.awt.event.*;
public class bookframe extends JFrame implements ActionListener { JLabel l1,l2,l3; JTextField f1,f2,f3; JButton b1,b2,b3,b4; JPanel p1,p2,p3,p4,p5; ResultSet rs;
bookdb b;
bookframe(){
b=new bookdb(); this.setLayout(new GridLayout(5,1));
l1=new JLabel("书本编号：");
l2=new JLabel("书 名：");
l3=new JLabel("书本作者：");
f1=new JTextField(15);
f2=new JTextField(15);
f3=new JTextField(15);
b1=new JButton("增加");
b2=new JButton("查询");
b3=new JButton("修改");
b4=new JButton("删除");
p1=new JPanel();
p2=new JPanel();
p3=new JPanel();
p4=new JPanel();
p5=new JPanel();
p1.add(l1);
p1.add(f1);
p2.add(l2);
p2.add(f2);
p3.add(l3);
p3.add(f3);
p4.add(b1);
p4.add(b2);
p5.add(b3);
p5.add(b4); this.add(p1); this.add(p2); this.add(p3); this.add(p4); this.add(p5);
b1.addActionListener(this);
b2.addActionListener(this);
b3.addActionListener(this);
b4.addActionListener(this);
b3.setEnabled(false);
b4.setEnabled(false); this.setSize(350, 450); this.setVisible(true);
}
public void actionPerformed(ActionEvent e) { // TODO Auto-generated method stub
if(e.getSource()==b1){//增加图书
String sql="insert into book values('"+f1.getText()+"','"+f2.getText()+"','"+f3.getText()+"')"; if(b.update(sql)){
f2.setText("");
f3.setText(""); JOptionPane.showMessageDialog(null, "图书增加成功");
}else{ JOptionPane.showMessageDialog(null, "图书编号已存在");
f1.setText("");
f2.setText("");
f3.setText("");
}
}else if(e.getSource()==b2){//查找图书
String sql="select *from book where bookid='"+f1.getText()+"'";
rs=b.find(sql); try { while(rs.next()){
f2.setText(rs.getString(2));
f3.setText(rs.getString(3));
b3.setEnabled(true);
b4.setEnabled(true);
}
} catch (SQLException e1) { // TODO Auto-generated catch block
e1.printStackTrace(); JOptionPane.showMessageDialog(null, "您查找的编号不存在，请重新查找");
f1.setText("");
f2.setText("");
f3.setText("");
}
}else if(e.getSource()==b3){//修改图书资料
String sql="update book set bookname='"+f2.getText()+"',bookauthor='"+f3.getText()+"'where bookid='"+f1.getText()+"'"; if(b.update(sql)){ JOptionPane.showMessageDialog(null, "修改成功");
f2.setText("");
f3.setText("");
b3.setEnabled(false);
b4.setEnabled(false);
}else{ JOptionPane.showMessageDialog(null, "修改失败，可能您修改的图书编号不存在");
}
}else if(e.getSource()==b4){//删除图书
String sql="delete from book where bookid='"+f1.getText()+"'"; if(b.update(sql)){ JOptionPane.showMessageDialog(null, "图书成功删除");
f1.setText("");
f2.setText("");
f3.setText("");
b3.setEnabled(false);
b4.setEnabled(false);
}else{ JOptionPane.showMessageDialog(null, "没能查找到您要删除的图书编号");
}
}
}
}
主函数
package mybook;public class frame_main { public static void main(String[] args) { // TODO Auto-generated method stub
denglu d=new denglu();
}
}
本文转自lzwxx 51CTO博客，原文链接:
http://blog.51cto.com/13064681/1944371
