Btukfyl

when i tried to go to another page using navigator he always go to this page, and if someone could help me with this:

http://localhost:8080/#!/index

and here is the code:

 @SpringUI(path = "/")

 public class Mainview extends UI implements View {`



@Override

protected void init(VaadinRequest vaadinRequest) {

    VerticalLayout contents = new VerticalLayout();

    setContent(contents);



    TextField username = new TextField("Email OR User Name");

    username.setWidth("25%");

    contents.addComponent(username);

    contents.setComponentAlignment(username, Alignment.MIDDLE_CENTER);



    TextField password = new TextField("password");

    password.setWidth("25%");

    contents.addComponent(password);

    contents.setComponentAlignment(password, Alignment.MIDDLE_CENTER);



    Button signButton = new Button("Sign In");

    signButton.setWidth("15%");

    contents.addComponent(signButton);

    contents.setComponentAlignment(signButton, Alignment.BOTTOM_CENTER);



    signButton.addClickListener(clickEvent -> {

        Navigator navigator = new Navigator(getUI(), this);

        navigator.addView("/", new Mainview());

        navigator.addView("/index", new SecondPage());

        navigator.navigateTo("/index");

    });

}

}

and here is the other page:

@SpringUI(path = "/index")

public class SecondPage extends UI implements View {

@Override

protected void init(VaadinRequest vaadinRequest) {

    VerticalLayout contents = new VerticalLayout();

    setContent(contents);

    Button button = new Button("hey");

    button.setWidth("10%");

    button.setHeight("10%");



    contents.addComponent(button);

}

thank's for the helpers.

The reason is quite simple, the other UI is deployed at URL http://localhost:8080/index not http://localhost:8080/#!/index. You seem to have a misconception about Navigator. Navigator is made for within UI navigation, i.e. navigation between views, not between UI's.

I assume you actually do not want to define the SecondPage as another UI, but as another view. So you should not extend UI there. Also as you are using Spring DI there, you should define it as @SpringView. And as you do so, you do not need to register it via Navigator.addView(..) method, since Spring add-on will auto register all @SpringView annotated views to view provider automatically. So you should just autowire the view provider and set the view provider of the Navigator.

There is more documentation with examples here: https://vaadin.com/docs/v8/framework/advanced/advanced-spring.html