?? jdbcconn.java~1~
字號:
public void Btn_Login_actionPerformed(ActionEvent e) {
String password_text=PassWord_Text.getText();
String username_text=UserName_Text.getText();
if(username_text.equals("")|| password_text.equals(""))
{
JOptionPane.showMessageDialog(null,"用戶名或密碼不能為空!");
}else{
try{
//建立數(shù)據(jù)庫連接對象
Jdbcconn conn = new Jdbcconn();
//連接數(shù)據(jù)庫
conn.OpenConn("student","sa","yaya");
String strSQL="select * from student where Uno='"+username_text+"'";
//得到記錄;
try {
ResultSet rs = conn.getResults(strSQL);
rs.first();
String PassWord = rs.getString("Upwd"); //得到數(shù)據(jù)庫中對應(yīng)用戶名的密碼
if (PassWord.equals(password_text)) {
JOptionPane.showMessageDialog(null, "成功登陸!");
} else {
JOptionPane.showMessageDialog(null, "密碼錯誤,請重輸!");
PassWord_Text.setText("");
}
} catch (Exception ex) {
JOptionPane.showMessageDialog(null, "用戶名或密碼錯誤!");
UserName_Text.setText("");
PassWord_Text.setText("");
System.out.print(ex.getMessage());
}
}catch(Exception ex)
{
System.out.print(ex.getMessage());
}
System.out.println("username_text:"+username_text);
System.out.println("password_text:"+password_text);
}
}
}
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