vaadin6 + spring：向应用程序添加自定义组件

Question

当我使用此代码时，结果为空页：

public class Vaadin6biuApplication extends Application {
    @Override
    public void init() {
        xx a = new xx();
           Window w = new Window("aness conf");
           w.addComponent(a);
           setMainWindow(w);
    }  
}

public class xx extends CustomComponent {
    @AutoGenerated
    private AbsoluteLayout mainLayout;
    @AutoGenerated
    private Button button_1;
    public xx() {
        buildMainLayout();
        setCompositionRoot(mainLayout);
    }
    @AutoGenerated
    private AbsoluteLayout buildMainLayout() {
        mainLayout = new AbsoluteLayout();
        mainLayout.setImmediate(false);
        button_1 = new Button();
        mainLayout.addComponent(button_1, "top:100.0px;left:100.0px;");         
        return mainLayout;
    }  
}

如何向应用程序添加自定义组件？ 谢谢你的回答

Answer 1

您是否阅读了wiki tutorial vaadin6 + spring？随着春天＆gt; 2.5它很简单：

@Configurable(preConstruction = true)
public class SpringHelloWorld extends com.vaadin.Application {

@Autowired
private MyBeanInterface bean;

public void init() {
    final Window main = new Window("Hello window");
    setMainWindow(main);        
    main.addComponent(new Label( bean.myMethod() ));
}
}