基于Java和Oracle的学生信息管理系统

}

Class.forName(\);

catch (ClassNotFoundException ce) { } try {

Connection con =

JOptionPane.showMessageDialog(s,ce.getMessage());

DriverManager.getConnection(\,\\,\);

Statement stmt = con.createStatement();

ResultSet rs = stmt.executeQuery(\);

rs=stmt.executeQuery(\ID='\+id+\);

if(id.equals(\)) { }

else if(rs.next())//如果账号存在 {

if(oldpad.equals(\)) { \);

} else { 就提示,反之

{

if(pad.equals(0))

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JOptionPane.showMessageDialog(this,\账号未填写!\);

JOptionPane.showMessageDialog(s,\原密码未填写！

if(rs.getString(\).equals(oldpad))//如果密码正确

{ 能为空！\);

} else { 码已重置！\);

this.setVisible(false); else { }

JOptionPane.showMessageDialog(s,\密码

}

int a = stmt.executeUpdate(\if(a==1)

JOptionPane.showMessageDialog(s,\密

PWD = '\+pad+\+oldpad+\);

{

JOptionPane.showMessageDialog(s,\密码不

失败！\);

rs.close(); stmt.close();

} } 确！\);

} } else {

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else { }

JOptionPane.showMessageDialog(s,\原密码不正

JOptionPane.showMessageDialog(s,\账号不存在，请重新输入正确的账号！\); } }

}

public static void main(String[] args) { }

@SuppressWarnings(\)

tchlogpassword change = new tchlogpassword(); } else { }

ID.setText(\);

oldpassword.setText(\); password.setText(\); ID.requestFocus(); }

catch (SQLException se) { }

JOptionPane.showMessageDialog(s,se.getMessage());

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