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Dialog

Dialog 对象通过 Page.onDialog(handler) 事件按页分派。

¥Dialog objects are dispatched by page via the Page.onDialog(handler) event.

使用 Dialog 类的示例：

¥An example of using Dialog class:

import com.microsoft.playwright.*;

public class Example {
  public static void main(String[] args) {
    try (Playwright playwright = Playwright.create()) {
      BrowserType chromium = playwright.chromium();
      Browser browser = chromium.launch();
      Page page = browser.newPage();
      page.onDialog(dialog -> {
        System.out.println(dialog.message());
        dialog.dismiss();
      });
      page.evaluate("alert('1')");
      browser.close();
    }
  }
}
注意

除非有 Page.onDialog(handler) 监听器，否则对话框会自动关闭。当监听器存在时，它必须是 Dialog.accept() 或 Dialog.dismiss() 对话框 - 否则页面将 freeze 等待对话框，并且单击等操作将永远不会完成。

¥Dialogs are dismissed automatically, unless there is a Page.onDialog(handler) listener. When listener is present, it must either Dialog.accept() or Dialog.dismiss() the dialog - otherwise the page will freeze waiting for the dialog, and actions like click will never finish.

方法​

¥Methods

accept​

Added before v1.9 dialog.accept

当对话框被接受时返回。

¥Returns when the dialog has been accepted.

用法

¥Usage

Dialog.accept();
Dialog.accept(promptText);

参数

¥Arguments

在提示中输入的文本。如果对话框的 type 没有提示，不会造成任何影响。可选的。

¥A text to enter in prompt. Does not cause any effects if the dialog's type is not prompt. Optional.

返回

¥Returns

defaultValue​

Added before v1.9 dialog.defaultValue

如果对话框有提示，则返回默认提示值。否则，返回空字符串。

¥If dialog is prompt, returns default prompt value. Otherwise, returns empty string.

用法

¥Usage

Dialog.defaultValue();

返回

¥Returns

dismiss​

Added before v1.9 dialog.dismiss

当对话框关闭时返回。

¥Returns when the dialog has been dismissed.

用法

¥Usage

Dialog.dismiss();

返回

¥Returns

message​

Added before v1.9 dialog.message

对话框中显示一条消息。

¥A message displayed in the dialog.

用法

¥Usage

Dialog.message();

返回

¥Returns

page​

Added in: v1.34 dialog.page

启动此对话框的页面（如果可用）。

¥The page that initiated this dialog, if available.

用法

¥Usage

Dialog.page();

返回

¥Returns

type​

Added before v1.9 dialog.type

返回对话框的类型，可以是 alert、beforeunload、confirm 或 prompt 之一。

¥Returns dialog's type, can be one of alert, beforeunload, confirm or prompt.

用法

¥Usage

Dialog.type();

返回

¥Returns