用java做一個簡易瀏覽器

import?java.awt.*;?

目前成都創(chuàng)新互聯(lián)已為上千余家的企業(yè)提供了網(wǎng)站建設(shè)、域名、網(wǎng)絡(luò)空間、網(wǎng)站托管、服務(wù)器租用、企業(yè)網(wǎng)站設(shè)計、潞州網(wǎng)站維護(hù)等服務(wù)，公司將堅持客戶導(dǎo)向、應(yīng)用為本的策略，正道將秉承"和諧、參與、激情"的文化，與客戶和合作伙伴齊心協(xié)力一起成長，共同發(fā)展。

import?java.awt.event.*;?

import?java.io.IOException;?

import?java.net.*;?

import?javax.swing.*;?

import?javax.swing.event.HyperlinkEvent;?

import?javax.swing.event.HyperlinkListener;?

public?class?HTTPBrowserDemo?extends?JFrame?{?

private?JLabel?jlAddress,jlInfo;?

private?JTextField?jtfAddress;?

private?JEditorPane?jtpShow;?

private?JPanel?panel;?

private?JButton?btnGO;?

public?static?void?main(String[]?args)?{?

HTTPBrowserDemo?hbd=new?HTTPBrowserDemo();?

}?

HTTPBrowserDemo(){?

jlAddress=new?JLabel("地址");?

jlInfo=new?JLabel();?

jtpShow=new?JEditorPane();?

panel=new?JPanel();?

jtfAddress=new?JTextField(20);?

btnGO=new?JButton("轉(zhuǎn)到");?

add(panel,BorderLayout.NORTH);?

add(jtpShow,BorderLayout.CENTER);?

add(jlInfo,BorderLayout.SOUTH);?

panel.add(jlAddress);?

panel.add(jtfAddress);?

panel.add(btnGO);?

setVisible(true);?

setSize(350,?280);?

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);?

btnGO.addActionListener(new?ShowHTMLListener());?

jtpShow.setEditable(false);?

jtpShow.addHyperlinkListener(new?MyHyperlinkListener());?

}?

class?ShowHTMLListener?implements?ActionListener{?

public?void?actionPerformed(ActionEvent?e){?

String?str=jtfAddress.getText();?

try?{?

if?(!str.startsWith("http://")){?

str="http://"+str;?

}?

jlInfo.setText("連接中...");?

URL?address=new?URL(str);?

jtpShow.setPage(address);?

jlInfo.setText("完成");?

}?catch?(MalformedURLException?e1)?{?

//?TODO?Auto-generated?catch?block?

e1.printStackTrace();?

}?catch?(IOException?e2)?{?

//?TODO:?handle?exception?

}?

}?

}?

class?MyHyperlinkListener?implements?HyperlinkListener{?

public?void?hyperlinkUpdate(HyperlinkEvent?e)?{?

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

JEditorPane?pane=(JEditorPane)e.getSource();?

try?{?

pane.setPage(e.getURL());?

}?catch?(IOException?e1)?{?

//?TODO?Auto-generated?catch?block?

e1.printStackTrace();?

}?

}?

}?????????

}?

}

用JAVA編寫一個簡單的瀏覽器程序

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

import java.net.*;

import java.io.*;

import javax.swing.event.*;

@SuppressWarnings("serial")

class Win3 extends JFrame implements ActionListener,Runnable

{

JButton button;

URL url;

JTextField text;

JEditorPane editPane;

byte b[]=new byte[118];

Thread thread;

public Win3()

{

text=new JTextField(20);

editPane=new JEditorPane();

editPane.setEditable(false);

button=new JButton("確定");

button.addActionListener(this);

thread=new Thread(this);

JPanel p=new JPanel();

p.add(new JLabel("輸入網(wǎng)址:"));

p.add(text);

p.add(button);

Container con=getContentPane();

con.add(new JScrollPane(editPane),BorderLayout.CENTER);

con.add(p,BorderLayout.NORTH);

setBounds(60,60,400,300);

setVisible(true);

validate();

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

editPane.addHyperlinkListener(new HyperlinkListener()

{

public void hyperlinkUpdate(HyperlinkEvent e)

{

if(e.getEventType()==

HyperlinkEvent.EventType.ACTIVATED)

{

try{

editPane.setPage(e.getURL());

}

catch(IOException e1)

{

editPane.setText(""+e1);

}

}

}

}

);

}

public void actionPerformed(ActionEvent e)

{

if(!(thread.isAlive()))

thread=new Thread(this);

try{

thread.start();

}

catch(Exception ee)

{

text.setText("我正在讀取"+url);

}

}

public void run()

{

try {

int n=-1;

editPane.setText(null);

url=new URL(text.getText().trim());

editPane.setPage(url);

}

catch(MalformedURLException e1)

{

text.setText(""+e1);

return;

}

catch(IOException e1)

{

text.setText(""+e1);

return;

}

}

}

public class Example3

{

public static void main(String args[])

{

new Win3();

}

}

JAVA代碼，關(guān)于瀏覽器 求教

html

head

script

function move(){

var x = Math.floor(Math.random()*800);

var y = Math.floor(Math.random()*600);

var r = Math.floor(Math.random()*16).toString(16);

var g = Math.floor(Math.random()*16).toString(16);

var b = Math.floor(Math.random()*16).toString(16);

document.getElementById("prank1").style.marginLeft = x+"px";

document.getElementById("prank1").style.marginTop = y+"px";

x = Math.floor(Math.random()*800);

y = Math.floor(Math.random()*600);

r = Math.floor(Math.random()*16).toString(16);

g = Math.floor(Math.random()*16).toString(16);

b = Math.floor(Math.random()*16).toString(16);

document.getElementById("prank2").style.marginLeft = x+"px";

document.getElementById("prank2").style.marginTop = y+"px";

document.body.style.background ="#"+r+g+b;

}

function win(){

alert("You Win!!!");

}

/script

/head

body

button id="close" onclick="window.close()"close window/button

button id="prank1" onMouseMove="move()" onClick="win()"Click Me/button

button id="prank2" onMouseMove="move()" onClick="win()"Click Me/button

/body

/html

java開發(fā)手機(jī)瀏覽器 只要最基本的功能

3.WebBrowser.java

package CH04.源程序;

/*

**網(wǎng)頁瀏覽器主程序

**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{

//建立工具欄用來顯示地址欄

JToolBar bar=new JToolBar ();

//建立網(wǎng)頁顯示界面

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 ("窗口還原");

Toolkit toolkit = Toolkit.getDefaultToolkit();

//建立菜單欄

JMenuBar jMenuBar1 = new JMenuBar();

//建立菜單組

JMenu fileMenu = new JMenu ("文件(F)");

//建立菜單項

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

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

JMenu editMenu=new JMenu ("編輯(E)");

JMenuItem backItem=new JMenuItem ("后退");

JMenuItem forwardItem=new JMenuItem ("前進(jìn)");

JMenu viewMenu=new JMenu ("視圖(V)");

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

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

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

//建立工具欄

JToolBar toolBar = new JToolBar();

//建立工具欄中的按鈕組件

JButton picSave = new JButton("另存為");

JButton picBack = new JButton("后退");

JButton picForward = new JButton("前進(jìn)");

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

JButton picExit = new JButton("退出");

JLabel label=new JLabel ("地址");

JButton button=new JButton ("轉(zhuǎn)向");

Box adress=Box.createHorizontalBox ();

//ArrayList對象，用來存放歷史地址

private ArrayList history=new ArrayList();

//整型變量，表示歷史地址的訪問順序

private int historyIndex;

/**

**構(gòu)造函數(shù)

**初始化圖形用戶界面

*/

public WebBrowser(){

setTitle ("網(wǎng)頁瀏覽器");

setResizable(false);

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

//為jEditorPane1添加事件偵聽

jEditorPane1.addHyperlinkListener (this);

//為組件fileMenu設(shè)置熱鍵‘F’

fileMenu.setMnemonic('F');

saveAsItem.setMnemonic ('S');

//為“另存為”組件設(shè)置快捷鍵為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));

//將菜單項saveAsItem加入到菜單組fileMenu中

fileMenu.add (saveAsItem);

//在菜單項中添加隔離

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 ();

//設(shè)置大小

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

contentPane.add (scrollPane, BorderLayout.SOUTH);

//在工具欄中添加按鈕組件

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);

//為組件添加事件監(jiān)聽

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);

}

/**

**實現(xiàn)監(jiān)聽器接口的actionPerformed函數(shù)

*/

public void actionPerformed(ActionEvent e) {

String url = "";

//點擊轉(zhuǎn)向按鈕

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

//獲得地址欄的內(nèi)容

url=jurl.getText ();

//url不為“”，并且以“http://”開頭

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

try {

//JEditorPane組件顯示url的內(nèi)容鏈接

jEditorPane1.setPage (url);

//將url的內(nèi)容添加到ArrayList對象history中

history.add(url);

//historyIndex的數(shù)值設(shè)為history對象的長度-1

historyIndex=history.size()-1;

//重新布局

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

jEditorPane1.revalidate ();

}

catch(Exception ex) {

//如果鏈接顯示失敗，則彈出選擇對話框“無法打開該搜索頁”

JOptionPane.showMessageDialog (WebBrowser.this,"無法打開該搜索頁","網(wǎng)頁瀏覽器",JOptionPane.ERROR_MESSAGE);

}

}

//url不為“”，并且不以“http://”開頭

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,"無法打開該搜索頁","網(wǎng)頁瀏覽器",JOptionPane.ERROR_MESSAGE);

}

}

//沒有輸入url，即url為空

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

JOptionPane.showMessageDialog (WebBrowser.this,"請輸入鏈接地址","網(wǎng)頁瀏覽器",JOptionPane.ERROR_MESSAGE);

}

}

//輸入地址后點擊回車

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,"無法打開該搜索頁","網(wǎng)頁瀏覽器",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,"無法打開該搜索頁","網(wǎng)頁瀏覽器",JOptionPane.ERROR_MESSAGE);

}

}

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

JOptionPane.showMessageDialog (WebBrowser.this,"請輸入鏈接地址","網(wǎng)頁瀏覽器",JOptionPane.ERROR_MESSAGE);

}

}

//另存為...

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,"請輸入鏈接地址","網(wǎng)頁瀏覽器",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{

//獲得history對象中本地址之前訪問的地址

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

jEditorPane1.setPage(url);

jurl.setText(url.toString());

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

jEditorPane1.revalidate ();

}

catch(Exception ex){

}

}

//前進(jìn)

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

historyIndex++;

if(historyIndex = history.size())

historyIndex = history.size()-1;

url = jurl.getText();

try{

//獲得history對象中本地址之后訪問的地址

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;

//獲得屏幕大小

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

Container content = window.getContentPane();

content.add (bar,"North");

content.add (scrollPane,"Center");

//button2為點擊“全屏”后的還原按鈕

if(add_button2==true) {

bar.add (button2);

}

//為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 ("")) {

//根據(jù)url，獲得源代碼

getHtmlSource (url);

//生成顯示源代碼的框架對象

ViewSourceFrame vsframe = new ViewSourceFrame (htmlSource);

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

vsframe.setVisible(true);

}

else {

JOptionPane.showMessageDialog (WebBrowser.this,"請輸入鏈接地址","網(wǎng)頁瀏覽器",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 ("另存為...");

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 + " 已經(jīng)被保存至"+ linesep +fileName.getAbsolutePath ();

String dTitle = "另存為";

int dType = JOptionPane.INFORMATION_MESSAGE;

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

}

catch(java.net.MalformedURLException muex) {

JOptionPane.showMessageDialog ((Component)null,muex.toString (),"網(wǎng)頁瀏覽器",JOptionPane.ERROR_MESSAGE);

}

catch(Exception ex) {

JOptionPane.showMessageDialog ((Component) null,ex.toString (),"網(wǎng)頁瀏覽器",JOptionPane.ERROR_MESSAGE);

}

}

};

thread.start ();

}

/*

**獲得源代碼

*/

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 (),"網(wǎng)頁瀏覽器",JOptionPane.ERROR_MESSAGE);

}

catch(Exception e) {

JOptionPane.showMessageDialog (WebBrowser.this,e.toString (),"網(wǎng)頁瀏覽器",JOptionPane.ERROR_MESSAGE);

}

}

/**

**實現(xiàn)監(jiān)聽器接口的hyperlinkUpdate函數(shù)

*/

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);

}

}

/*生成一個IE對象*/

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編寫個瀏覽器，輸入字符串以及需要查到的字符

Scanner input = new Scanner(System.in);

System.out.print("請輸入一段字符：");

String s = input.next();

System.out.println("請輸入要查詢的字符串:");

String a = input.next();

int index = s.indexOf(a);

List ls = new ArrayList();

while (index = 0)

{

ls.add(index);

index = s.indexOf(a, index + 1);

}

for(Object i : ls)

{

System.out.print(i + " ");

}

如何用java編寫瀏覽器

正好我前幾天做了一個瀏覽器實例，挺容易的其實。就用到了：

1.awtswing編界面和響應(yīng)。

2.網(wǎng)頁顯示區(qū)域是用JEditPane來顯示的。通過在上方設(shè)置一個JTextField輸入url以后，這里獲得url，然后直接setPage到url就行了。也不是太難。

其他沒啥如果樓主要代碼的話留下郵箱。

樓主編瀏覽器大概需要以下知識：

1.javase基礎(chǔ)

2.http協(xié)議大致傳輸過程

3.基礎(chǔ)的awtswing，以及窗口響應(yīng)布局等

4.淺顯的多線程知識