java发送https请求

import java.net.*;
import java.io.*;
import java.security.*;
import javax.net.ssl.*;
import com.macfaq.io.*;

public class HTTPSClient {

public static void main(String[] args) {

if (args.length == 0) {
System.out.println("Usage: java HTTPSClient2 host");
return;
}

int port = 443; // default https port
String host = args[0];

try {
SSLSocketFactory factory
= (SSLSocketFactory) SSLSocketFactory.getDefault();

SSLSocket socket = (SSLSocket) factory.createSocket(host, port);

// enable all the suites
String[] supported = socket.getSupportedCipherSuites();
socket.setEnabledCipherSuites(supported);

Writer out = new OutputStreamWriter(socket.getOutputStream());
// https requires the full URL in the GET line
out.write("GET http://" + host + "/ HTTP/1.1\r\n");
out.write("Host: " + host + "\r\n");
out.write("\r\n");
out.flush();

// read response
BufferedReader in = new SafeBufferedReader(
new InputStreamReader(socket.getInputStream()));

// read the header
String s;
while (!(s = in.readLine()).equals("")) {
System.out.println(s);
}
System.out.println();

// read the length
String contentLength = in.readLine();
int length = Integer.MAX_VALUE;
try {
length = Integer.parseInt(contentLength.trim(), 16);
}
catch (NumberFormatException ex) {
// This server doesn't send the content-length
// in the first line of the response body
}
System.out.println(contentLength);

int c;
int i = 0;
while ((c = in.read()) != -1 && i++ < length) {
System.out.write(c);
}

System.out.println();
out.close();
in.close();
socket.close();

}
catch (IOException ex) {
System.err.println(ex);
}

}

}

/**
*   Java Network Programming, Third Edition
*   By Elliotte Rusty Harold
*   Third Edition October 2004
*   ISBN: 0-596-00721-3
*/