无法在JavaFX WebView中登录Google [英] Cannot sign in to Google in JavaFX WebView

问题描述

我无法在JavaFX WebView中登录Google。单击下一步按钮时，页面无法加载。

I cannot sign in to Google in JavaFX WebView. The page doesn't load when I click the 'Next' button.

其他网站上的其他登录工作正常。

Other logins on different websites work fine.

以下是您可以运行的示例：

Here is an example you can run:

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.StackPane;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebView;
import javafx.stage.Stage;

public class App extends Application
{
    @Override
    public void start(Stage primaryStage) throws Exception
    {
        WebView browser = new WebView();

        WebEngine webEngine = browser.getEngine();

        webEngine.load("https://calendar.google.com");

        StackPane root = new StackPane();
        root.getChildren().add(browser);

        primaryStage.setScene(new Scene(root, 600, 600));
        primaryStage.show();
    }

    public static void main(String[] args)
    {
        launch(args);
    }
}

此处的屏幕截图

推荐答案

简短版本：

在加载页面之前，在主方法中添加以下行：

Add the following line to your main method, before you load the page:

System.setProperty("sun.net.http.allowRestrictedHeaders", "true");

长版本：

我的第一直觉是JavaScript无法正常工作，但我测试了虚拟电子邮件并正确地收到错误：

My first instinct was that JavaScript wasn't working, but I tested dummy emails and correctly got the error:

couldn'找到你的Google帐户

Couldn't find your Google Account

所以看起来有些JavaScript正在运行，但不是让用户继续输入他们的部分密码。我添加了以下监听器来监听控制台错误，我在这里找到的：

So it seemed like some JavaScript was working, but not the part which enabled the user to continue to enter their password. I added the following listener to listen for console errors, which I found here:

com.sun.javafx.webkit.WebConsoleListener.setDefaultListener(
    (webView, message, lineNumber, sourceId) ->
        System.out.println("Console: [" + sourceId + ":" + lineNumber + "] " + message)
);

这导致以下错误：

控制台：[null：0] XMLHttpRequest无法加载
https://ssl.gstatic.com/accounts/static/_/js/blahblahblah

来源 Access-Control-Allow-Origin不允许使用=noreferrer> https://accounts.google.com 。

这是一项名为同源政策的安全功能。它旨在阻止页面从潜在的恶意第三方网站加载脚本。

This is a security feature called Same-Origin Policy. It's designed to stop pages being able to load scripts from potentially malicious third-party websites.

我搜索了同源策略JavaFX和发现以下问题，这将解决您的问题。

I searched for "Same Origin Policy JavaFX" and found the following question which will solve your problem.

修复和附加日志记录的完整应用程序是：

The full application with both the fix and the additional logging is:

public class CalendarController extends Application
{
    @Override
    public void start(Stage primaryStage) throws Exception
    {
        WebView browser = new WebView();

        WebEngine webEngine = browser.getEngine();

        com.sun.javafx.webkit.WebConsoleListener.setDefaultListener(
            (webView, message, lineNumber, sourceId)-> System.out.println("Console: [" + sourceId + ":" + lineNumber + "] " + message)
        );

        webEngine.load("http://calendar.google.com");

        StackPane root = new StackPane();
        root.getChildren().add(browser);

        primaryStage.setScene(new Scene(root, 600, 600));
        primaryStage.show();
    }

    public static void main(String[] args)
    {
        System.setProperty("sun.net.http.allowRestrictedHeaders", "true");
        launch(args);
    }
}

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