如何关闭Javafx？ [英] How to shut down Javafx?
本文介绍了如何关闭Javafx？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
此问题与以下内容有关：如何阅读来自此页面的带有Java的HTML内容？
This question is related to : How to read html content from this page with Java?
我使用以下程序来获取网址的内容，但是如何在获取网址后将其关闭html内容，因为来自我的Netbeans，它似乎在获取内容后仍在运行：
I use the following program to get the content of a url, but how to shut it down after it gets the html content, because from my Netbeans, it seems it's still running after it gets the content :
import java.awt.*;
import java.io.*;
import java.net.URL;
import javafx.embed.swing.JFXPanel;
import javafx.application.Platform;
import javafx.collections.ObservableList;
import javafx.concurrent.Worker.State;
import javafx.scene.Scene;
import javafx.scene.layout.*;
import javafx.scene.web.*;
import javax.swing.*;
import javax.xml.transform.*;
import javax.xml.transform.dom.*;
import javax.xml.transform.stream.*;
/**
Note using the browser might require setting the properties
- http.proxyHost
- http.proxyPort
e.g. -Dhttp.proxyHost=webcache.mydomain.com -Dhttp.proxyPort=8080
*/
public class Html_Loader extends JPanel
{
private final int PANEL_WIDTH_INT=1130;
private final int PANEL_HEIGHT_INT=840;
private JFXPanel browserFxPanel;
private Pane browser;
WebView view;
WebEngine eng;
static String Url,Urls[]=new String[]{"https://www.iplocation.net/?query=63.149.124.133"};
// static boolean Show_Frame_B=true;
static boolean Show_Frame_B=false;
StringBuffer Str_Buf;
public Html_Loader() { init(); }
public Html_Loader(String Url)
{
this.Url=Url;
init();
setURL(Url);
}
void init()
{
if (Show_Frame_B)
{
FlowLayout FL=new FlowLayout();
FL.setHgap(0);
FL.setVgap(0);
setLayout(FL);
}
setPreferredSize(new Dimension(PANEL_WIDTH_INT,PANEL_HEIGHT_INT));
browserFxPanel=new JFXPanel();
add(browserFxPanel);
Platform.runLater(new Runnable() { public void run() { createScene(); } });
}
public String getURL() { return eng.getLocation(); }
public String goBack()
{
final WebHistory history=eng.getHistory();
ObservableList<WebHistory.Entry> entryList=history.getEntries();
int currentIndex=history.getCurrentIndex();
// Out("currentIndex = "+currentIndex);
// Out(entryList.toString().replace("],","]\n"));
Platform.runLater(new Runnable() { public void run() { history.go(-1); } });
return entryList.get(currentIndex>0?currentIndex-1:currentIndex).getUrl();
}
public String goForward()
{
final WebHistory history=eng.getHistory();
ObservableList<WebHistory.Entry> entryList=history.getEntries();
int currentIndex=history.getCurrentIndex();
// Out("currentIndex = "+currentIndex);
// Out(entryList.toString().replace("],","]\n"));
Platform.runLater(new Runnable() { public void run() { history.go(1); } });
return entryList.get(currentIndex<entryList.size()-1?currentIndex+1:currentIndex).getUrl();
}
public void refresh() { Platform.runLater(new Runnable() { public void run() { eng.reload(); } }); }
public void stop() { Platform.runLater(new Runnable() { public void run() { eng.getLoadWorker().cancel(); } }); }
public void setURL(final String Url)
{
Platform.runLater(new Runnable()
{
public void run()
{
if (new File(Url).exists()) setURL(new File(Url));
else eng.load((Url.startsWith("http://") || Url.startsWith("https://"))?Url:"http://"+Url);
// browserFxPanel.setEnabled(false);
}
});
}
public void setURL(final URL Url)
{
Platform.runLater(new Runnable()
{
public void run()
{
try { eng.load(Url.toString()); }
catch (Exception e) { e.printStackTrace(); }
}
});
}
public void setURL(final File file)
{
Platform.runLater(new Runnable()
{
public void run()
{
try { eng.load(file.toURI().toURL().toString()); }
catch (Exception e) { e.printStackTrace(); }
}
});
}
private void createScene()
{
browser=createBrowser();
browserFxPanel.setScene(new Scene(browser));
}
private Pane createBrowser()
{
view=new WebView();
if (Show_Frame_B)
{
Double widthDouble=new Integer(PANEL_WIDTH_INT).doubleValue();
Double heightDouble=new Integer(PANEL_HEIGHT_INT).doubleValue();
view.setMinSize(widthDouble,heightDouble);
view.setPrefSize(widthDouble,heightDouble);
}
eng=view.getEngine();
eng.getLoadWorker() // addListener()
.stateProperty()
.addListener((obs,oldValue,newValue)->
{
System.out.println(newValue);
if (newValue==State.SUCCEEDED)
{
Str_Buf=new StringBuffer();
// System.out.println("finished loading");
try
{
TransformerFactory transformerFactory=TransformerFactory.newInstance();
Transformer transformer=transformerFactory.newTransformer();
StringWriter stringWriter=new StringWriter();
transformer.transform(new DOMSource(eng.getDocument()),new StreamResult(stringWriter));
Str_Buf.append(stringWriter.getBuffer());
Out(Str_Buf.toString());
}
catch (Exception e) { e.printStackTrace(); }
}
});
GridPane grid=new GridPane();
grid.getChildren().addAll(view);
return grid;
}
public static void out(String message) { System.out.print(message); }
public static void Out(String message) { System.out.println(message); }
public static void main(String[] args)
{
final Html_Loader demo=new Html_Loader(Urls[0]);
if (Show_Frame_B)
{
SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
JFrame frame=new JFrame("JavaFX 2.2 in Swing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(demo);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
}
}
我不喜欢不需要它来显示一个面板，只需要用它来获取html内容并返回字符串，然后关闭，如何修复它？有没有办法将它简化为最小，只是用它来获取HTML？
I don't need it to show a panel, just need to use it to get the html content and return the string, then shut down, how to fix it ? Is there a way to simplify it to the minimum to just use it to get the html ?
推荐答案
好的，我找到了解决方案：
OK, I found the solution :
import java.awt.*;
import java.io.*;
import java.net.URL;
import javafx.embed.swing.JFXPanel;
import javafx.application.Platform;
import javafx.concurrent.Worker.State;
import javafx.scene.Scene;
import javafx.scene.layout.*;
import javafx.scene.web.*;
import javax.swing.*;
import javax.xml.transform.*;
import javax.xml.transform.dom.*;
import javax.xml.transform.stream.*;
/**
Note using the browser might require setting the properties
- http.proxyHost
- http.proxyPort
e.g. -Dhttp.proxyHost=webcache.mydomain.com -Dhttp.proxyPort=8080
*/
public class JavaFX_Html_Loader extends JPanel
{
private final int PANEL_WIDTH_INT=1130;
private final int PANEL_HEIGHT_INT=840;
private JFXPanel browserFxPanel;
private Pane browser;
WebView view;
WebEngine eng;
static String Url,Urls[]=new String[]{"https://www.iplocation.net/?query=63.149.124.133"};
static boolean Show_Frame_B=true;
// static boolean Show_Frame_B=false;
StringBuffer Str_Buf;
public JavaFX_Html_Loader(String Url)
{
this.Url=Url;
init();
setURL(Url);
}
void init()
{
if (Show_Frame_B)
{
FlowLayout FL=new FlowLayout();
FL.setHgap(0);
FL.setVgap(0);
setLayout(FL);
}
setPreferredSize(new Dimension(PANEL_WIDTH_INT,PANEL_HEIGHT_INT));
browserFxPanel=new JFXPanel();
add(browserFxPanel);
Platform.runLater(new Runnable() { public void run() { createScene(); } });
}
public void setURL(final String Url)
{
Platform.runLater(new Runnable()
{
public void run()
{
if (new File(Url).exists()) setURL(new File(Url));
else eng.load((Url.startsWith("http://") || Url.startsWith("https://"))?Url:"http://"+Url);
// browserFxPanel.setEnabled(false);
}
});
}
public void setURL(final URL Url)
{
Platform.runLater(new Runnable()
{
public void run()
{
try { eng.load(Url.toString()); }
catch (Exception e) { e.printStackTrace(); }
}
});
}
public void setURL(final File file)
{
Platform.runLater(new Runnable()
{
public void run()
{
try { eng.load(file.toURI().toURL().toString()); }
catch (Exception e) { e.printStackTrace(); }
}
});
}
private void createScene()
{
browser=createBrowser();
browserFxPanel.setScene(new Scene(browser));
}
private Pane createBrowser()
{
view=new WebView();
if (Show_Frame_B)
{
Double widthDouble=new Integer(PANEL_WIDTH_INT).doubleValue();
Double heightDouble=new Integer(PANEL_HEIGHT_INT).doubleValue();
view.setMinSize(widthDouble,heightDouble);
view.setPrefSize(widthDouble,heightDouble);
}
eng=view.getEngine();
eng.getLoadWorker().stateProperty().addListener((obs,oldValue,newValue)-> // addListener()
{
System.out.println(newValue);
if (newValue==State.SUCCEEDED)
{
Str_Buf=new StringBuffer();
// System.out.println("finished loading");
try
{
TransformerFactory transformerFactory=TransformerFactory.newInstance();
Transformer transformer=transformerFactory.newTransformer();
StringWriter stringWriter=new StringWriter();
transformer.transform(new DOMSource(eng.getDocument()),new StreamResult(stringWriter));
Str_Buf.append(stringWriter.getBuffer());
Out(Str_Buf.toString());
if (Str_Buf.toString().endsWith("</BODY></HTML>")) System.exit(0);
}
catch (Exception e) { e.printStackTrace(); }
}
});
GridPane grid=new GridPane();
grid.getChildren().addAll(view);
return grid;
}
public static void out(String message) { System.out.print(message); }
public static void Out(String message) { System.out.println(message); }
public static void main(String[] args)
{
final JavaFX_Html_Loader demo=new JavaFX_Html_Loader(Urls[0]);
if (Show_Frame_B)
{
SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
JFrame frame=new JFrame("JavaFX 2.2 in Swing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(demo);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
}
}
这篇关于如何关闭Javafx？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！
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