用VaadinServlet去掉Vaadin 7中的web.xml

Question

我是Java和Vaadin的新手.一个基本的Vaadin项目web.xml用于所有映射.如果我想使用@WebServlet注释,我需要创建一个内部类,它继承自某个地方HttpServlet.

@SuppressWarnings("serial")
public class VaadinplaygroundUI extends UI {

    @WebServlet(urlPatterns="/Helo")
    public static class Servlet extends VaadinServlet {

    }

    @Override
    protected void init(VaadinRequest request) {
        final VerticalLayout layout = new VerticalLayout();

我知道,我在内部类中缺少一些覆盖的方法Servlet来使它工作,但我不知道哪个.有在互联网Vaadin 6.x的,其中内部类扩展的例子很多AbstractApplicationServlet.

谢谢你的帮助.

Answer 1

这是7.x:

public class MyUI extends UI {

    @WebServlet(value = "/*", asyncSupported = true, initParams = {
            @WebInitParam(name = "ui", value = "com.example.MyUI"),
            @WebInitParam(name = "productionMode", value = "false") })
    public static class Servlet extends VaadinServlet {
    }

    @Override
    protected void init(VaadinRequest request) {
        ..
    }
}

对于7.1和更新版本:

public class MyUI extends UI {

    @WebServlet(value = "/*", asyncSupported = true)
    @VaadinServletConfiguration(productionMode = false, ui = MyUI.class)
    public static class Servlet extends VaadinServlet {
    }

    @Override
    protected void init(VaadinRequest request) {
        ..
    }
}