NetUtil.java

/**
 * @author UFreedom
 * @since 2014 2014-10-4 下午2:18:59
 * @see www.52yummy.com
 * <br>
 * sunfreedom@sina.cn
 * <br>
 * Copyright (C) 2014 UFreedom. All Rights Reserved.
 */

package com.codecomb.utils;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;

import javax.net.ssl.HttpsURLConnection;

public class NetUtil {

	public static byte[] getUrlBytes(String urlSpec) throws IOException {

		URL url = new URL(urlSpec);
		HttpURLConnection connection = (HttpURLConnection) url.openConnection();

		try {
			ByteArrayOutputStream out = new ByteArrayOutputStream();
			InputStream in = connection.getInputStream();

			if (connection.getResponseCode() != HttpURLConnection.HTTP_OK) {
				return null;
			}

			int bytesRead = 0;
			byte[] buffer = new byte[1024];
			while ((bytesRead = in.read(buffer)) > 0) {
				out.write(buffer, 0, bytesRead);
			}
			out.close();
			return out.toByteArray();
		} finally {
			connection.disconnect();
		}
	}

	public static String getUrl(String urlSpec) throws IOException {
		return new String(getUrlBytes(urlSpec));
	}
}