清除 JavaFX WebView 中的 session/cache/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 显示来自 Google 服务器的 oAuth 2.0 URL.
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() + "
" + value.getMessage() :
engine.getLocation() + "
Unexpected 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，我都会从 Google 获取以下 URL.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，将显示以下用户界面.
During the first time, the following UI will be shown.
在我之后
- 在屏幕一成功登录.
- 与屏幕二一起呈现.
- 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，以加载步骤 中生成的 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 会再次向我展示 Screen One，因为这是一个新的浏览会话.然而，我第二次看到的是屏幕二.
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.
看起来，在WebView中存储了一些会话/缓存/cookie，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.
我希望我能回到屏幕一，这样我就可以支持多个用户帐户.
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session/cache/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 中.
Session cookies for JavaFX WebView are stored in java.net.CookieHandler.
要自行管理 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();
然后将其设置为默认值:
Then set it as default:
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());
这篇关于清除 JavaFX WebView 中的 session/cache/cookie的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
