Hi...
In the last post we told u that u can make or design the login page according to you as you want.Now we will tell you to make conectivity with MYSQL database....
Steps to do it are as follows..

Step1-make a project in Command prompt as
                                     >webAppCreator -out loginpage com.loginpage

Step2- Now, in eclipse
                             File > import > Existing project into workspace>Browse loginpage>finish

Step3- add a mysql connector in the project as follow-
                    loginpage (right click) > build path > Add external archieves >  Browse it and add it
Download connector by link-
Step4 - In the login page do coding as for example -

loginpage.java

package com.client;
/**
 * Entry point classes define <code>onModuleLoad()</code>.
 */
public class first implements EntryPoint {
  /**
   * The message displayed to the user when the server cannot be reached or
   * returns an error.
   */
  private static final String SERVER_ERROR = "An error occurred while "
      + "attempting to contact the server. Please check your network "
      + "connection and try again.";
  /**
   * Create a remote service proxy to talk to the server-side Greeting service.
   */
   GreetingServiceAsync a1 = GWT.create(GreetingService.class);
  /**
   * This is the entry point method.
   */
  RootPanel root;
  public void onModuleLoad() {
    root=RootPanel.get();
   
    final AbsolutePanel absolutePanel = new AbsolutePanel();
    root.add(absolutePanel, 31, 31);
    absolutePanel.setSize("383px", "237px");
   
    final TextBox textBox = new TextBox();
    absolutePanel.add(textBox, 196, 46);
   
    final PasswordTextBox passwordTextBox = new PasswordTextBox();
    absolutePanel.add(passwordTextBox, 196, 97);
   
    Button button = new Button("New button");
    button.addClickHandler(new ClickHandler() {
     public void onClick(ClickEvent event) {
       String s1=textBox.getText();
       String s2=passwordTextBox.getText();
      
      a1.check(s1,s2, new AsyncCallback<String>() {
  
    @Override
    public void onSuccess(String result) {
     // TODO Auto-generated method stub
     if(result.equals("yes"))
     Window.alert("Result ok");
   
    }
  
    @Override
    public void onFailure(Throwable caught) {
     Window.alert("Result not ok");
    }
   });
     }
    });
    button.setText("login");
    absolutePanel.add(button, 186, 158);
   
    Label lblUsername = new Label("UserName");
    absolutePanel.add(lblUsername, 75, 47);
   
    Label lblPassword = new Label("Password");
    absolutePanel.add(lblPassword, 75, 98);
   
    Label lblRegisteredUser = new Label("Registered User");
    absolutePanel.add(lblRegisteredUser, 122, 10);
   
    Hyperlink hprlnkNewUserClick = new Hyperlink("New User Click Me", false, "newHistoryToken");
    hprlnkNewUserClick.addClickHandler(new ClickHandler() {
     public void onClick(ClickEvent event) {
      absolutePanel.clear();
      NewUser n=new NewUser();
      n.setVisible(true);
           }
    });
    absolutePanel.add(hprlnkNewUserClick, 106, 206);
   
  }
}
Design of loginpage.java



Step 5-  Newuser.java

package com.client;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.AbsolutePanel;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.core.client.GWT;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.user.client.ui.PasswordTextBox;
public class NewUser extends Composite {
RootPanel r1;
 public NewUser() {
  r1=RootPanel.get();
  final GreetingServiceAsync a1=GWT.create(GreetingService.class);
  AbsolutePanel absolutePanel = new AbsolutePanel();
  r1.add(absolutePanel, 48, 10);
  absolutePanel.setSize("402px", "280px");
 
  final TextBox textBox = new TextBox();
  absolutePanel.add(textBox, 230, 52);
 
  Label lblUsername = new Label("Username");
  absolutePanel.add(lblUsername, 69, 53);
 
  Label lblPassword = new Label("Password");
  absolutePanel.add(lblPassword, 69, 116);
 
  Label lblConfirmPassword = new Label("Confirm Password");
  absolutePanel.add(lblConfirmPassword, 69, 184);
 
  Button button = new Button("New button");
  button.setText("Add Me");
  absolutePanel.add(button, 137, 222);
 
  final PasswordTextBox passwordTextBox = new PasswordTextBox();
  absolutePanel.add(passwordTextBox, 230, 115);
 
  final PasswordTextBox passwordTextBox_1 = new PasswordTextBox();
  absolutePanel.add(passwordTextBox_1, 230, 184);
  button.addClickHandler(new ClickHandler() {
   public void onClick(ClickEvent event) {
    String s1=textBox.getText();
             String s2=passwordTextBox.getText();
             String s3=passwordTextBox_1.getText();
            if(s2.equals(s3))
            {
            
              a1.newuser(s1, s2, new AsyncCallback<String>() {

               @Override
               public void onSuccess(String result)
               {
             
                if(result.equals("yes"))
                {
                 Window.alert("inserted");
                }
 
               }

 @Override
 public void onFailure(Throwable caught) {
 
  Window.alert("Try Again");
 
 }
});
            
            }
            else
         
      {
       Window.alert("Please Enter Correct Password");
      
      }
            
   
   }
  });
 
 }
}