清除JavaFX WebView中的会话/缓存/ cookie [英] Clear the session/cache/cookie in the JavaFX WebView
问题描述
我有一个Swing对话框，它使用JavaFX WebView 来显示来自Google服务器的oAuth 2.0网址。
I had a Swing dialog, which uses JavaFX WebView to display oAuth 2.0 URL from Google server.
public class SimpleSwingBrowser extends JDialog {
private final JFXPanel jfxPanel = new JFXPanel();
private WebEngine engine;
private final JPanel panel = new JPanel(new BorderLayout());
public SimpleSwingBrowser() {
super(MainFrame.getInstance(), JDialog.ModalityType.APPLICATION_MODAL);
initComponents();
}
private void initComponents() {
createScene();
panel.add(jfxPanel, BorderLayout.CENTER);
getContentPane().add(panel);
java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
setBounds((screenSize.width-460)/2, (screenSize.height-680)/2, 460, 680);
}
private void createScene() {
Platform.runLater(new Runnable() {
@Override
public void run() {
final WebView view = new WebView();
engine = view.getEngine();
engine.titleProperty().addListener(new ChangeListener<String>() {
@Override
public void changed(ObservableValue<? extends String> observable, String oldValue, final String newValue) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
SimpleSwingBrowser.this.setTitle(newValue);
}
});
}
});
engine.getLoadWorker()
.exceptionProperty()
.addListener(new ChangeListener<Throwable>() {
public void changed(ObservableValue<? extends Throwable> o, Throwable old, final Throwable value) {
if (engine.getLoadWorker().getState() == FAILED) {
SwingUtilities.invokeLater(new Runnable() {
@Override public void run() {
JOptionPane.showMessageDialog(
panel,
(value != null) ?
engine.getLocation() + "\n" + value.getMessage() :
engine.getLocation() + "\nUnexpected error.",
"Loading error...",
JOptionPane.ERROR_MESSAGE);
}
});
}
}
});
// http://stackoverflow.com/questions/11206942/how-to-hide-scrollbars-in-the-javafx-webview
// hide webview scrollbars whenever they appear.
view.getChildrenUnmodifiable().addListener(new ListChangeListener<Node>() {
@Override
public void onChanged(Change<? extends Node> change) {
Set<Node> deadSeaScrolls = view.lookupAll(".scroll-bar");
for (Node scroll : deadSeaScrolls) {
scroll.setVisible(false);
}
}
});
jfxPanel.setScene(new Scene(view));
}
});
}
public void loadURL(final String url) {
Platform.runLater(new Runnable() {
@Override
public void run() {
String tmp = toURL(url);
if (tmp == null) {
tmp = toURL("http://" + url);
}
engine.load(tmp);
}
});
}
private static String toURL(String str) {
try {
return new URL(str).toExternalForm();
} catch (MalformedURLException exception) {
return null;
}
}
}
每次，我都会得到来自Google的以下网址。我将使用 SimpleSwingBrowser 加载以下URL。
Everytime, I will get the following URL from Google. I will use the SimpleSwingBrowser to load the following URL.
在第一次期间，以下用户界面将显示。
During the first time, the following UI will be shown.
我
- 在第一屏上成功登录。
- 提交wi屏幕二。
- 点击接受。
- 关闭网络浏览器对话框。
- 再次，生成与第一次完全相同的URL。
- 创建一个全新的
SimpleSwingBrowser实例，以加载在步骤生成的URL
- Perform success login at Screen One.
- Presented with Screen Two.
- Click on Accept.
- Close the web browser dialog.
- Again, generate the exact same URL as first time.
- Create a completely new instance of
SimpleSwingBrowser, to load URL generated at step
我希望Google再次向我展示Screen One，因为这是一个新的浏览会话。但是，我第二次得到的是Screen Two。
I expect Google will show me Screen One again, as this is a new browsing session. However, what I'm getting for the 2nd time, is Screen Two.
似乎在<$ c $中有一些存储的会话/缓存/ cookie c> WebView ，即使它是一个全新的实例。
It seems that, there are some stored session/cache/cookie in the WebView, even though it is a completely new instance.
我希望我能回到Screen One，这样我才能支持多个用户帐户。
I expect I will get myself back to Screen One, so that I can support multiple user accounts.
如何清除 WebView 中的会话/缓存/ cookie？
How can I clear the session/cache/cookie in the WebView?
推荐答案
JavaFX WebView的会话cookie存储在 java.net.CookieHandler 。
Session cookies for JavaFX WebView are stored in java.net.CookieHandler.
要自己管理cookie，请创建 java.net.CookieManager的新实例：
To manage cookies on your own create new instance of java.net.CookieManager:
java.net.CookieManager manager = new java.net.CookieManager();
然后将其设为默认值：
java.net.CookieHandler.setDefault(manager);
要清除cookie，只需调用removeAll方法：
To clear cookies just call removeAll method:
manager.getCookieStore().removeAll();
或者只是创建cookie管理器的新实例并将其设置为默认值：
or just create new instance of cookie manager and set it as default:
java.net.CookieHandler.setDefault(new java.net.CookieManager());
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