Vaadin 更改默认会话过期通知? [英] Vaadin Change the default Session Expired Notification?

问题描述

瓦丁 7.6.2

如何更改默认的会话过期通知；消息和通知类型?

How to change the default Session Expired Notification; both the message and the type of notification?

推荐答案

要更改会话过期消息，您需要创建自己的 SystemMessagesProvider，您可以在其中定义它.例如，在 servlet 部署中，您可以执行以下操作:

To change session expired message you need to create your own SystemMessagesProvider, where you define it. For example in a servlet deployment, you could do the following:

@WebServlet(urlPatterns = "/*", name = "MyUIServlet", asyncSupported = true)
@VaadinServletConfiguration(ui = MyUI.class, productionMode = false)
public static class MyUIServlet extends VaadinServlet {

    @Override
    protected void servletInitialized() throws ServletException {
        super.servletInitialized();

        CustomizedSystemMessages messages = new CustomizedSystemMessages();
        messages.setSessionExpiredCaption("Session expired caption");
        messages.setSessionExpiredMessage("Session expired more detailed message");

        getService().setSystemMessagesProvider(e -> messages);

    }
}

没有改变通知类型的内置方法.当然，您可以使用 css 设置样式，但样式也会影响其他系统通知.

There is no a built-in way to change the type of notification. Of course you can style it with css, but the styling affects to other system notifications as well.

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