java浏览器开发代码 java浏览器开发代码怎么写

运行时可调用浏览器打开一个网页，网页地址在代码中的java代码怎么写？

网页地址在代码中的java代码写法如下：

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package com.test;

import java.lang.reflect.Method;

//实现打开浏览器并跳到指定网址的类

public class BareBonesBrowserLaunch {

public static void openURL(String url) {

try {

browse(url);

} catch (Exception e) {

}

}

private static void browse(String url) throws Exception {

//获取操作系统的名字

String osName = System.getProperty("os.name", "");

if (osName.startsWith("Mac OS")) {

//苹果的打开方式

Class fileMgr = Class.forName("com.apple.eio.FileManager");

Method openURL = fileMgr.getDeclaredMethod("openURL", new Class[] { String.class });

openURL.invoke(null, new Object[] { url });

} else if (osName.startsWith("Windows")) {

//windows的打开方式。

Runtime.getRuntime().exec("rundll32 url.dll,FileProtocolHandler " + url);

} else {

// Unix or Linux的打开方式

String[] browsers = { "firefox", "opera", "konqueror", "epiphany", "mozilla", "netscape" };

String browser = null;

for (int count = 0; count browsers.length browser == null; count++)

//执行代码，在brower有值后跳出，

//这里是如果进程创建成功了，==0是表示正常结束。

if (Runtime.getRuntime().exec(new String[] { "which", browsers[count] }).waitFor() == 0)

browser = browsers[count];

if (browser == null)

throw new Exception("Could not find web browser");

else

//这个值在上面已经成功的得到了一个进程。

Runtime.getRuntime().exec(new String[] { browser, url });

}

}

}

//主方法 测试类

public static void main(String[] args) {

String url = "";      

BareBonesBrowserLaunch.openURL(url);

}

java浏览器的开发html显示异常，一定要内嵌浏览器吗

java浏览器开发,其实很简单, 使用JavaFX的WebView组件即可.(支持html5); 也可以在swing里使用JFXPanel然后添加WebView;

效果图如下

参考代码如下(java8+win10 x64 编写,测试)

import javafx.application.Application;

import javafx.concurrent.Worker.State;

import javafx.geometry.Insets;

import javafx.scene.Scene;

import javafx.scene.control.*;

import javafx.scene.layout.*;

import javafx.scene.web.*;

import javafx.stage.Stage;

public class WebViewTest extends Application {

public static void main(String[] args) {

launch(args);

}

@Override

public void start(Stage primaryStage) throws Exception {

//顶部

HBox hbox=new HBox(8);

Label labeAddr=new Label("地址");

TextField tfAddr = new TextField();

tfAddr.setMinWidth(500);

tfAddr.setText("");

Button btnGo = new Button("Go转到");

Button btnGoBack=new Button("-");

Button btnH=new Button("-");

TextField tfSerch = new TextField();

Button btnSerch= new Button("捜");

hbox.getChildren().addAll(labeAddr,tfAddr,btnGoBack,btnH,btnGo,tfSerch,btnSerch);

hbox.setPadding(new Insets(5));

//中间

WebView wv = new WebView();

WebEngine we = wv.getEngine();

we.getLoadWorker().stateProperty().addListener((ob, ov, nv) - {

if(nv==State.SCHEDULED) {

tfAddr.setText(we.getLocation());//

}

});

//底部

Label labelBottom = new Label();

labelBottom.textProperty().bind(we.getLoadWorker().messageProperty());//底下的信息显示

BorderPane root = new BorderPane();

root.setTop(hbox);

root.setCenter(wv);

root.setBottom(labelBottom);

Scene scene = new Scene(root, 900, 600);

primaryStage.setTitle("JavaFX 雪飞潇潇 web浏览器");

primaryStage.setScene(scene);

primaryStage.show();

btnGo.setOnAction(e - {

we.load(tfAddr.getText().trim());

});

btnGoBack.setOnAction(e-{

we.executeScript("history.back()");//执行JavaScript,后退

});

btnH.setOnAction(e-{

we.executeScript("history.forward()");//执行JavaScript,前进

});

//搜索

btnSerch.setOnAction(e-{

we.load(""+tfSerch.getText());

});

}

}

java开发手机浏览器 只要最基本的功能

3.WebBrowser.java

package CH04.源程序;

/*

**网页浏览器主程序

**WebBrowser.java

*/

import java.awt.*;

import javax.swing.*;

import javax.swing.text.*;

import java.awt.event.*;

import javax.swing.event.*;

import javax.swing.border.*;

import javax.swing.filechooser.FileFilter;

import javax.swing.filechooser.FileView;

import java.io.*;

import java.net.*;

import java.util.*;

public class WebBrowser extends JFrame implements HyperlinkListener,ActionListener{

//建立工具栏用来显示地址栏

JToolBar bar=new JToolBar ();

//建立网页显示界面

JTextField jurl = new JTextField (60);

JEditorPane jEditorPane1 = new JEditorPane ();

JScrollPane scrollPane = new JScrollPane (jEditorPane1);

JFileChooser chooser=new JFileChooser ();

JFileChooser chooser1=new JFileChooser ();

String htmlSource;

JWindow window = new JWindow (WebBrowser.this);

JButton button2=new JButton ("窗口还原");

Toolkit toolkit = Toolkit.getDefaultToolkit();

//建立菜单栏

JMenuBar jMenuBar1 = new JMenuBar();

//建立菜单组

JMenu fileMenu = new JMenu ("文件(F)");

//建立菜单项

JMenuItem saveAsItem = new JMenuItem ("另存为(A)...");

JMenuItem exitItem=new JMenuItem ("退出(I)");

JMenu editMenu=new JMenu ("编辑(E)");

JMenuItem backItem=new JMenuItem ("后退");

JMenuItem forwardItem=new JMenuItem ("前进");

JMenu viewMenu=new JMenu ("视图(V)");

JMenuItem fullscreenItem=new JMenuItem ("全屏(U)");

JMenuItem sourceItem=new JMenuItem ("查看源码(C)");

JMenuItem reloadItem=new JMenuItem ("刷新(R)");

//建立工具栏

JToolBar toolBar = new JToolBar();

//建立工具栏中的按钮组件

JButton picSave = new JButton("另存为");

JButton picBack = new JButton("后退");

JButton picForward = new JButton("前进");

JButton picView = new JButton("查看源代码");

JButton picExit = new JButton("退出");

JLabel label=new JLabel ("地址");

JButton button=new JButton ("转向");

Box adress=Box.createHorizontalBox ();

//ArrayList对象，用来存放历史地址

private ArrayList history=new ArrayList();

//整型变量，表示历史地址的访问顺序

private int historyIndex;

/**

**构造函数

**初始化图形用户界面

*/

public WebBrowser(){

setTitle ("网页浏览器");

setResizable(false);

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

//为jEditorPane1添加事件侦听

jEditorPane1.addHyperlinkListener (this);

//为组件fileMenu设置热键‘F’

fileMenu.setMnemonic('F');

saveAsItem.setMnemonic ('S');

//为“另存为”组件设置快捷键为ctrl+s

saveAsItem.setAccelerator (KeyStroke.getKeyStroke (KeyEvent.VK_S,InputEvent.CTRL_MASK));

exitItem.setMnemonic('Q');

exitItem.setAccelerator (KeyStroke.getKeyStroke (KeyEvent.VK_E,InputEvent.CTRL_MASK));

//将菜单项saveAsItem加入到菜单组fileMenu中

fileMenu.add (saveAsItem);

//在菜单项中添加隔离

fileMenu.addSeparator ();

fileMenu.add (exitItem);

backItem.setMnemonic ('B');

backItem.setAccelerator (KeyStroke.getKeyStroke (KeyEvent.VK_Z,InputEvent.CTRL_MASK));

forwardItem.setMnemonic('D');

forwardItem.setAccelerator (KeyStroke.getKeyStroke (KeyEvent.VK_P,InputEvent.CTRL_MASK));

editMenu.setMnemonic('E');

editMenu.add (backItem);

editMenu.add (forwardItem);

viewMenu.setMnemonic('V');

fullscreenItem.setMnemonic('U');

fullscreenItem.setAccelerator (KeyStroke.getKeyStroke (KeyEvent.VK_U,InputEvent.CTRL_MASK));

sourceItem.setMnemonic('C');

sourceItem.setAccelerator (KeyStroke.getKeyStroke (KeyEvent.VK_C,InputEvent.CTRL_MASK));

reloadItem.setMnemonic('R');

reloadItem.setAccelerator (KeyStroke.getKeyStroke (KeyEvent.VK_R,InputEvent.CTRL_MASK));

Container contentPane=getContentPane ();

//设置大小

scrollPane.setPreferredSize(new Dimension(100,500));

contentPane.add (scrollPane, BorderLayout.SOUTH);

//在工具栏中添加按钮组件

toolBar.add(picSave);

toolBar.addSeparator();

toolBar.add(picBack);

toolBar.add(picForward);

toolBar.addSeparator();

toolBar.add(picView);

toolBar.addSeparator();

toolBar.add(picExit);

contentPane.add (bar,BorderLayout.CENTER);

contentPane.add(toolBar,BorderLayout.NORTH);

viewMenu.add (fullscreenItem);

viewMenu.add (sourceItem);

viewMenu.addSeparator ();

viewMenu.add (reloadItem);

jMenuBar1.add (fileMenu);

jMenuBar1.add (editMenu);

jMenuBar1.add (viewMenu);

setJMenuBar (jMenuBar1);

adress.add (label);

adress.add (jurl);

adress.add (button);

bar.add (adress);

//为组件添加事件监听

saveAsItem.addActionListener(this);

picSave.addActionListener(this);

exitItem.addActionListener(this);

picExit.addActionListener(this);

backItem.addActionListener(this);

picBack.addActionListener(this);

forwardItem.addActionListener(this);

picForward.addActionListener(this);

fullscreenItem.addActionListener(this);

sourceItem.addActionListener(this);

picView.addActionListener(this);

reloadItem.addActionListener(this);

button.addActionListener(this);

jurl.addActionListener(this);

}

/**

**实现监听器接口的actionPerformed函数

*/

public void actionPerformed(ActionEvent e) {

String url = "";

//点击转向按钮

if (e.getSource() == button){

//获得地址栏的内容

url=jurl.getText ();

//url不为“”，并且以“http://”开头

if(url.length ()0url.startsWith ("http://")){

try {

//JEditorPane组件显示url的内容链接

jEditorPane1.setPage (url);

//将url的内容添加到ArrayList对象history中

history.add(url);

//historyIndex的数值设为history对象的长度-1

historyIndex=history.size()-1;

//重新布局

jEditorPane1.setEditable(false); //add by copy editor :)

jEditorPane1.revalidate ();

}

catch(Exception ex) {

//如果链接显示失败，则弹出选择对话框“无法打开该搜索页”

JOptionPane.showMessageDialog (WebBrowser.this,"无法打开该搜索页","网页浏览器",JOptionPane.ERROR_MESSAGE);

}

}

//url不为“”，并且不以“http://”开头

else if(url.length ()0!url.startsWith ("http://")) {

//在url前面添加“http://”

url="http://"+url;

try {

jEditorPane1.setPage (url );

history.add(url);

historyIndex=history.size()-1;

jEditorPane1.setEditable(false); //add by copy editor :)

jEditorPane1.revalidate ();

}

catch(Exception ex) {

JOptionPane.showMessageDialog (WebBrowser.this,"无法打开该搜索页","网页浏览器",JOptionPane.ERROR_MESSAGE);

}

}

//没有输入url，即url为空

else if(url.length ()==0){

JOptionPane.showMessageDialog (WebBrowser.this,"请输入链接地址","网页浏览器",JOptionPane.ERROR_MESSAGE);

}

}

//输入地址后点击回车

else if (e.getSource() == jurl){

url=jurl.getText ();

if(url.length ()0url.startsWith ("http://")) {

try {

jEditorPane1.setPage (url);

history.add(url);

historyIndex=history.size()-1;

jEditorPane1.setEditable(false); //add by copy editor :)

jEditorPane1.revalidate ();

jurl.setMaximumSize (jurl.getPreferredSize ());

}

catch(Exception ex) {

JOptionPane.showMessageDialog (WebBrowser.this,"无法打开该搜索页","网页浏览器",JOptionPane.ERROR_MESSAGE);

}

}

else if(url.length ()0!url.startsWith ("http://")) {

url="http://"+url;

try {

jEditorPane1.setPage (url );

history.add(url);

historyIndex=history.size()-1;

jEditorPane1.setEditable(false); //add by copy editor :)

jEditorPane1.revalidate ();

}

catch(Exception ex) {

JOptionPane.showMessageDialog (WebBrowser.this,"无法打开该搜索页","网页浏览器",JOptionPane.ERROR_MESSAGE);

}

}

else if(url.length ()==0){

JOptionPane.showMessageDialog (WebBrowser.this,"请输入链接地址","网页浏览器",JOptionPane.ERROR_MESSAGE);

}

}

//另存为...

else if (e.getSource() == picSave||e.getSource() == saveAsItem){

url = jurl.getText ().toString ().trim();

if(url.length ()0!url.startsWith ("http://")) {

url="http://"+url;

}

if(!url.equals ("")) {

//保存文件

saveFile(url);

}

else {

JOptionPane.showMessageDialog (WebBrowser.this,"请输入链接地址","网页浏览器",JOptionPane.ERROR_MESSAGE);

}

}

//退出

else if (e.getSource() == exitItem ||e.getSource() == picExit){

System.exit(0);

}

//后退

else if (e.getSource() == backItem ||e.getSource() == picBack){

historyIndex--;

if(historyIndex 0)

historyIndex = 0;

url = jurl.getText();

try{

//获得history对象中本地址之前访问的地址

url = (String)history.get(historyIndex);

jEditorPane1.setPage(url);

jurl.setText(url.toString());

jEditorPane1.setEditable(false); //add by copy editor :)

jEditorPane1.revalidate ();

}

catch(Exception ex){

}

}

//前进

else if (e.getSource() == forwardItem ||e.getSource() == picForward){

historyIndex++;

if(historyIndex = history.size())

historyIndex = history.size()-1;

url = jurl.getText();

try{

//获得history对象中本地址之后访问的地址

url = (String)history.get(historyIndex);

jEditorPane1.setPage(url);

jurl.setText(url.toString());

jEditorPane1.setEditable(false); //add by copy editor :)

jEditorPane1.revalidate ();

}

catch(Exception ex){

}

}

//全屏

else if (e.getSource() == fullscreenItem){

boolean add_button2=true;

//获得屏幕大小

Dimension size = Toolkit.getDefaultToolkit().getScreenSize();

Container content = window.getContentPane();

content.add (bar,"North");

content.add (scrollPane,"Center");

//button2为点击“全屏”后的还原按钮

if(add_button2==true) {

bar.add (button2);

}

//为button2添加事件

button2.addActionListener (new ActionListener () {

public void actionPerformed (ActionEvent evt) {

WebBrowser.this.setEnabled (true);

window.remove (bar);

window.remove (toolBar);

window.remove (scrollPane);

window.setVisible (false);

scrollPane.setPreferredSize (new Dimension (100,500));

getContentPane ().add (scrollPane,BorderLayout.SOUTH);

getContentPane ().add (bar,BorderLayout.CENTER);

getContentPane ().add (toolBar,BorderLayout.NORTH);

bar.remove (button2);

pack();

}

});

window.setSize (size);

window.setVisible (true);

}

//查看源文件

else if (e.getSource() == sourceItem ||e.getSource() == picView){

url = jurl.getText ().toString ().trim ();

if(url.length ()0!url.startsWith ("http://")) {

url="http://"+url;

}

if( !url.equals ("")) {

//根据url，获得源代码

getHtmlSource (url);

//生成显示源代码的框架对象

ViewSourceFrame vsframe = new ViewSourceFrame (htmlSource);

vsframe.setBounds (0,0,800,500);

vsframe.setVisible(true);

}

else {

JOptionPane.showMessageDialog (WebBrowser.this,"请输入链接地址","网页浏览器",JOptionPane.ERROR_MESSAGE);

}

}

//刷新

else if (e.getSource() == reloadItem){

url=jurl.getText ();

if(url.length ()0url.startsWith ("http://")) {

try {

jEditorPane1.setPage (url);

jEditorPane1.setEditable(false); //add by copy editor :)

jEditorPane1.revalidate ();

}

catch(Exception ex) {

}

}

else if(url.length ()0!url.startsWith ("http://")) {

url="http://"+url;

try {

jEditorPane1.setPage (url );

jEditorPane1.setEditable(false); //add by copy editor :)

jEditorPane1.revalidate ();

}

catch(Exception ex) {

}

}

}

}

/*

**保存文件

*/

void saveFile (final String url) {

final String linesep = System.getProperty ("line.separator");

chooser1.setCurrentDirectory (new File ("."));

chooser1.setDialogType (JFileChooser.SAVE_DIALOG);

chooser1.setDialogTitle ("另存为...");

if(chooser1.showSaveDialog (this) != JFileChooser.APPROVE_OPTION)

return;

this.repaint ();

Thread thread = new Thread () {

public void run () {

try {

java.net.URL source = new URL (url);

InputStream in = new BufferedInputStream (source.openStream ());

BufferedReader br=new BufferedReader (new InputStreamReader (in));

File fileName = chooser1.getSelectedFile ();

FileWriter out = new FileWriter (fileName);

BufferedWriter bw = new BufferedWriter (out);

String line;

while((line = br.readLine ()) != null) {

bw.write (line);

bw.newLine ();

}

bw.flush ();

bw.close ();

out.close ();

String dMessage = url + " 已经被保存至"+ linesep +fileName.getAbsolutePath ();

String dTitle = "另存为";

int dType = JOptionPane.INFORMATION_MESSAGE;

JOptionPane.showMessageDialog ((Component) null,dMessage,dTitle,dType);

}

catch(java.net.MalformedURLException muex) {

JOptionPane.showMessageDialog ((Component)null,muex.toString (),"网页浏览器",JOptionPane.ERROR_MESSAGE);

}

catch(Exception ex) {

JOptionPane.showMessageDialog ((Component) null,ex.toString (),"网页浏览器",JOptionPane.ERROR_MESSAGE);

}

}

};

thread.start ();

}

/*

**获得源代码

*/

void getHtmlSource (String url) {

String linesep,htmlLine;

linesep = System.getProperty ("line.separator");

htmlSource ="";

try {

java.net.URL source = new URL (url);

InputStream in = new BufferedInputStream (source.openStream ());

BufferedReader br = new BufferedReader ( new InputStreamReader (in));

while((htmlLine = br.readLine ())!=null) {

htmlSource = htmlSource +htmlLine+linesep;

}

}

catch(java.net.MalformedURLException muex) {

JOptionPane.showMessageDialog (WebBrowser.this,muex.toString (),"网页浏览器",JOptionPane.ERROR_MESSAGE);

}

catch(Exception e) {

JOptionPane.showMessageDialog (WebBrowser.this,e.toString (),"网页浏览器",JOptionPane.ERROR_MESSAGE);

}

}

/**

**实现监听器接口的hyperlinkUpdate函数

*/

public void hyperlinkUpdate (HyperlinkEvent e) {

/* if(e.getEventType () == HyperlinkEvent.EventType.ACTIVATED) {

String url = jurl.getText();

if(url.length ()0url.startsWith ("http://")) {

try {

jEditorPane1.setPage (url);

jEditorPane1.revalidate ();

}

catch(Exception ex) {

}

}

else if(url.length ()0!url.startsWith ("http://")) {

url="http://"+url;

try {

jEditorPane1.setPage (url );

jEditorPane1.revalidate ();

}

catch(Exception ex) {

}

}

}

*/

// Revised by copy editor :) Now with new code to help hyperlink

try {

if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED)

jEditorPane1.setPage(e.getURL());

} catch (Exception ex) {

ex.printStackTrace(System.err);

}

}

/*生成一个IE对象*/

public static void main (String [] args){

try{

UIManager.setLookAndFeel(

UIManager.getCrossPlatformLookAndFeelClassName()

);

}

catch(Exception e){

}

WebBrowser webBrowser = new WebBrowser ();

webBrowser.pack();

webBrowser.setVisible(true);

}

}

用JAVA编写的一个简易浏览器。

import java.awt.*;

import java.awt.event.*;

import java.net.*;

import java.io.*;

import javax.swing.*;

import javax.swing.text.DefaultStyledDocument;

//HTTP连接与浏览

public class HTTPBrowser extends JFrame{

JTextField jtfAddress; //输入html文件地址或网址

JTextPane jtpShow; //显示页面

JTextArea jtaSource; //显示HTML源文件

public HTTPBrowser(){

super("HTTP连接与浏览"); //调用父类构造函数

jtfAddress=new JTextField(30); //实例化地址输入框

jtpShow=new JTextPane(); //实例化显示内容框

jtaSource=new JTextArea();

JPanel p1=new JPanel(); //实例化面板

JSplitPane spane=new JSplitPane(JSplitPane.VERTICAL_SPLIT); //实例化分隔面板

p1.add(new JLabel("地址")); //增加组件到面板上

p1.add(jtfAddress);

spane.add(new JScrollPane(jtpShow),JSplitPane.TOP);

spane.add(new JScrollPane(jtaSource),JSplitPane.BOTTOM);

spane.setDividerLocation(130); //设置分隔位置

spane.setDividerSize(2); //设置分隔栏尺寸

Container container=getContentPane(); //得到容器

container.add(p1,BorderLayout.NORTH); //增加组件到容器上

container.add(spane,BorderLayout.CENTER);

jtfAddress.addActionListener(new ShowHTMLListener()); //输入地址文本域事件处理

setSize(380,300); //设置窗口尺寸

setVisible(true); //设置窗口可视

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //关闭窗口时退出程序

}

class ShowHTMLListener implements ActionListener {

public void actionPerformed(ActionEvent event) {

try{

URL address=new URL(jtfAddress.getText()); //得到HTML页面的URL地址

jtpShow.setContentType("text/html"); //设置内容格式

jtpShow.setPage(address); //设置显示页面

BufferedReader in= new BufferedReader(new InputStreamReader(address.openStream())); //获取输入流

String line;

StringBuffer content = new StringBuffer(); //文件内容

while ((line = in.readLine()) != null) { //读取文件

content.append(line+"\n");

}

jtaSource.setText(new String(content)); //设置显示文本

in.close(); //关闭输入流

}

catch (Exception ex){

ex.printStackTrace(); //输出出错信息

}

}

}

public static void main(String[] args){

new HTTPBrowser();

}

}

这还有一个

import java.awt.*;

import java.awt.event.*;

import java.net.URL;

import javax.swing.*;

//html浏览器

public class HTTPBrowserDemo extends JFrame{

JTextField jtfAddress; //输入html文件地址或网址

JButton jbGo; //转到文件按钮

JTextPane jtpShow; //显示文件

JLabel jlInfo; //提示信息

public HTTPBrowserDemo(){

super("html浏览器"); //调用父类构造函数

jtfAddress=new JTextField(20); //实例化地址输入框

jbGo=new JButton("转到"); //实例化转向按钮

jtpShow=new JTextPane(); //实例化显示内容框

jlInfo=new JLabel(); //实例化信息提示标签

JPanel panel=new JPanel(); //实例化面板

panel.add(new JLabel("地址")); //增加组件到面板上

panel.add(jtfAddress);

panel.add(jbGo);

JScrollPane jsp=new JScrollPane(jtpShow); //实例化滚动窗体

Container container=getContentPane(); //得到容器

container.add(panel,BorderLayout.NORTH); //增加组件到容器上

container.add(jsp,BorderLayout.CENTER);

container.add(jlInfo,BorderLayout.SOUTH);

jbGo.addActionListener(new ShowHTMLListener()); //事件处理,发生按钮点击时显示页面内容

jtfAddress.addActionListener(new ShowHTMLListener());

setSize(350,280); //设置窗口尺寸

setVisible(true); //设置窗口可视

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //关闭窗口时退出程序

}

class ShowHTMLListener implements ActionListener { //显示页面内容事件处理

public void actionPerformed(ActionEvent event) {

try{

jlInfo.setText("正在连接..."); //显示提示信息

URL address=new URL(jtfAddress.getText()); //得到HTML页面的URL地址

jtpShow.setPage(address); //设置显示页面

jlInfo.setText("完成");

}

catch (Exception ex){

jlInfo.setText("连接出错");

ex.printStackTrace(); //输出出错信息

}

}

}

public static void main(String[] args){

new HTTPBrowserDemo();

}

}

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