Having problem querying data from database

Question

I'm trying to setup a query form to see if the username and password entered is already in a database. If it is then a Static Text will give a positive message, if not then the user would be asked to register. My query doesn't seem to work, since every time I run it the Static Text doesn't show anything after I hit my submit button. Any help would be great.
public String loginButton_action() {
// TODO: Process the action. Return value is a navigation
// case name where null will return to the same page.
String currentuser = (String) regusernameTF.getValue();
String currentpass = (String) regpasswordTF.getValue();
try {
connection = DriverManager.getConnection(Database_URL);
statement = connection.createStatement();
ResultSet resultset = statement.executeQuery(
"SELECT Username ,Password FROM CustomerInfo" +
"WHERE (Username =' " currentuser " ') ");
connection.commit();
statement.close();
connection.close();
String loggeduser = resultset.getString(1);
String loggedpass = resultset.getString(2);
boolean compare1 = loggeduser.equals(currentuser);
boolean compare2 = loggedpass.equals(currentpass);
if ((compare1==true) || (compare2==true)){
messageST.setRendered(true);
messageST.setText("Login Successful");
else {
messageST.setRendered(true);
messageST.setText("Username & Password not Valid." +
"Please Check Entry or Register to Login");
catch (Exception e){
e.printStackTrace();
return null;
Edited by: mavrik5150 on Feb 9, 2008 4:49 PM
Edit: Forgot to mention the Database does have data already populated into it

Answer 1

Hey Thanks guys for the tips, I was able to fix one problem, now I can get the Static Text field to display a message but I can't get the error message to appear when I purposly enter a wrong password or username. If I enter a correct username I get a successful message, even when I enter the wrong password. Here's the fixed code:
    public String loginButton_action() {
        // TODO: Process the action. Return value is a navigation
        // case name where null will return to the same page.
        Object currentuser =  regusernameTF.getValue();
        Object currentpass =  regpasswordTF.getValue();
        try {
        connection = DriverManager.getConnection(Database_URL);
        statement = connection.createStatement();       
        ResultSet resultset = statement.executeQuery(
                "SELECT Username ,Password FROM CustomerInfo WHERE (Username ='"+currentuser+"') ");       
//        connection.commit();
//        statement.close();
//        connection.close();   
        while (resultset.next()){
        String loggeduser = resultset.getString("username");
        String loggedpass = resultset.getString("password");
        boolean compare1 = loggeduser.equals(currentuser);
        boolean compare2 = loggedpass.equals(currentpass);
        if (compare1 || compare2){
            messageST.setRendered(true);
            messageST.setText("Login Successful");
        else {
            messageST.setRendered(true);
            messageST.setText("Username & Password not Valid." +
                    "Please Check Entry or Register to Login");
        catch (Exception e){
            e.printStackTrace();
        return null;
    }