Reading a web page content

ReadingWebPageContent.java

package net.mahtabalam;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.List;
import java.util.Map;

public class Test {
	
	public static void main(String[] args) throws Exception {
		
		URL url = new URL("http://mahtabalam.net:80");
	    HttpURLConnection httpCon = (HttpURLConnection) url.openConnection();
	    httpCon.connect();
	    
	    System.out.println("Content Type "+httpCon.getContentType());
	    System.out.println("Response Code "+httpCon.getResponseCode());
	    
	    Map<String, List<String>> map = httpCon.getHeaderFields();
	    for (String key : map.keySet()) {
	        System.out.println(key + ":");
	     
	        List<String> values = map.get(key);
	     
	        for (String aValue : values) {
	            System.out.println("\t" + aValue);
	        }
	    }
	    
	    InputStream inputStream = httpCon.getInputStream();
        BufferedInputStream reader = new BufferedInputStream(inputStream);

        BufferedOutputStream writer = new BufferedOutputStream(new FileOutputStream("/tmp/page.html"));

        byte[] buffer = new byte[4096];
        int bytesRead = -1;

        while ((bytesRead = reader.read(buffer)) != -1) {
            writer.write(buffer, 0, bytesRead);
        }

        writer.close();
        reader.close();
        System.out.println("----------Read all content---------");
	}

}