一个基于SSL的简单浏览器(使用Swing)

来源：互联网发布：linux系统内核参数编辑：程序博客网时间：2024/06/06 18:16

//代码如下

import javax.swing.text.*;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;
import javax.swing.*;

import java.net.*;
import java.io.*;
import javax.swing.event.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.text.html.*;
import java.beans.*;

public class SimpleWebBrowser extends JFrame implements HyperlinkListener,ActionListener{
private JTextField jtf=new JTextField(80);
private JEditorPane jep=new JEditorPane();
private String initialPage="";
private String host="localhost";
private int port=8888;
private SSLSocket socket;
public SimpleWebBrowser(String title) throws IOException{
super(title);

jtf.setText("");
jtf.addActionListener(this);
jep.setEditable(false);
jep.addHyperlinkListener(this);
//监听editorKit属性被重新设置的事件
jep.addPropertyChangeListener("editorKit", new PropertyChangeListener(){//注册一个PropertyChangeListener
public void propertyChange(PropertyChangeEvent evt){
EditorKit kit = jep.getEditorKit();
if(kit.getClass() == HTMLEditorKit.class) {
((HTMLEditorKit)kit).setAutoFormSubmission(false);//按手工方式提交表单
}
}
});

JPanel northPanel = new JPanel();///////////////////////////////////////
add(northPanel, BorderLayout.NORTH);
JButton solidButton = new JButton("网址:");//按钮
JButton searchButton = new JButton("浏览");
northPanel.add(solidButton);
northPanel.add(jtf);;
northPanel.add(searchButton);
add(new JScrollPane(jep));




searchButton.addActionListener(new ActionListener() {////////////点击按钮
@Override
public void actionPerformed(ActionEvent e) {
try {
initialPage=jtf.getText();///////////////将url中的网址放入

try {
communicate();//握手
} catch (Exception e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
//String info="http://www.javathinker.org";
jep.setPage(initialPage);//？/////发送请求，接受响应并·解析网页
} catch (IOException e1) {
showError(initialPage);
}
}
});//关闭按钮

pack();//自适应
setVisible(true);//可视化
setBounds(100,200,1100,700);
setLocationRelativeTo(null);
setDefaultCloseOperation(EXIT_ON_CLOSE);
}

public void showError(String url){
jep.setContentType("text/html");
jep.setText("<html>无法打开网页:"+url+"。输入的URL不合法，或者网页不存在。</html>");
}

public static void main(String[] args) throws IOException{
SimpleWebBrowser browser=new SimpleWebBrowser("浏览器");
}

public void actionPerformed(ActionEvent evt){
try{
jep.setPage(jtf.getText());
System.out.println("4");
}catch(Exception e){
showError(jtf.getText());
}
}
/** 处理用户选择超级链接或者提交表单事件 */
public void hyperlinkUpdate(HyperlinkEvent evt){
try{
if (evt.getClass() == FormSubmitEvent.class) { //处理提交表单事件
FormSubmitEvent fevt = (FormSubmitEvent)evt;
URL url=fevt.getURL(); //获得URL
String method=fevt.getMethod().toString(); //获得请求方式
String data=fevt.getData(); //获得表单数据

if(method.equals("GET")){ //如果为GET请求方式
jep.setPage(url.toString());
jtf.setText(url.toString()); //把文本框设为用户选择的超级链接
}else if(method.equals("POST")){ //如果为POST请求方式
URLConnection uc=url.openConnection();
//发送HTTP响应正文
System.out.println("1");
uc.setDoOutput(true);//设置是否可以获得输出流
OutputStreamWriter out=new OutputStreamWriter(uc.getOutputStream());
out.write(data);
//System.out.println(data);
out.close();

//接收HTTP响应正文
InputStream in=uc.getInputStream();
ByteArrayOutputStream buffer=new ByteArrayOutputStream();
byte[] buff=new byte[1024];
int len=-1;

while((len=in.read(buff))!=-1){
buffer.write(buff,0,len);
}
in.close();
// System.out.println("2");
jep.setText(new String(buffer.toByteArray()));
jtf.setText(url.toString()); //把文本框设为用户选择的超级链接
}
}else if(evt.getEventType()==HyperlinkEvent.EventType.ACTIVATED){ //处理用户选择的超级链接

System.out.println("3");
jep.setPage(evt.getURL());
jtf.setText(evt.getURL().toString()); //把文本框设为用户选择的超级链接
}

}catch(Exception e){
showError(evt.getURL().toString());
}
}
//**************************

public void communicate()throws Exception{////////////////////////////////////////////
System.setProperty("javax.net.ssl.trustStore", "D:\\myeclipse2016_workSpace\\SSLWeb\\test.keys");
SSLSocketFactory factory=(SSLSocketFactory)SSLSocketFactory.getDefault();
socket=(SSLSocket)factory.createSocket();
SocketAddress remoteAddr=new InetSocketAddress(host, port);
socket.connect(remoteAddr);

String[] supported=socket.getSupportedCipherSuites();
socket.setEnabledCipherSuites(supported);
System.out.println(socket.getUseClientMode()? "客户模式":"服务器模式");
StringBuffer sb=new StringBuffer("GET "+"/"+" HTTP/1.1\r\n");
sb.append("Host: localhost\r\n");
sb.append("Accept: */*\r\n");
sb.append("Accept-Language: zh-cn\r\n");
sb.append("Accept-Encoding: gzip, deflate\r\n");
sb.append("User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)\r\n");
sb.append("Connection: Keep-Alive\r\n\r\n");
//发出HTTP请求
OutputStream socketOut=socket.getOutputStream();//SSL就在握手
socketOut.write(sb.toString().getBytes());//SSL就在握手

BufferedReader br=getReader(socket);
String data;
while((data=br.readLine())!=null){
System.out.println(data);

}

// socket.close();
}
private PrintWriter getWriter(SSLSocket socket)throws IOException{
OutputStream socketOut = socket.getOutputStream();
return new PrintWriter(socketOut,true);
}
private BufferedReader getReader(SSLSocket socket)throws IOException{
InputStream socketIn = socket.getInputStream();
return new BufferedReader(new InputStreamReader(socketIn));
}
}

//结果

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