网络编程问题

[假的旁边就是真的]

每隔10秒访问一次百度网页，如果访问成功把网页返回的信息输出到文本文件里，访问不成功记录访问时间，不知道该如何写这个程序 没有头绪该怎么做，请各位大牛指点

[地下室森林]

这个是可以访问百度的代码，你要让他十秒访问一次可以自己改下

package csdn.programbbs_609;

import java.io.IOException;

public class BrowserControl {
	/**
	 * Display a file in the system browser. If you want to display a file, you
	 * must include the absolute path name.
	 * 
	 * @param url
	 *            the file's url (the url must start with either "http://" or
	 *            "file://").
	 */
	public static void displayURL(String url) {
		boolean windows = isWindowsPlatform();
		String cmd = null;
		try {
			if (windows) {
				// cmd = 'rundll32 url.dll,FileProtocolHandler http://...'
				cmd = WIN_PATH + "    " + WIN_FLAG + "    " + url;
				Process p = Runtime.getRuntime().exec(cmd);
			} else {
				// Under Unix, Netscape has to be running for the "-remote"
				// command to work. So, we try sending the command and
				// check for an exit value. If the exit command is 0,
				// it worked, otherwise we need to start the browser.
				// cmd = 'netscape -remote openURL(http://www.javaworld.com)'
				cmd = UNIX_PATH + "    " + UNIX_FLAG + "(" + url + ")";
				Process p = Runtime.getRuntime().exec(cmd);
				try {
					// wait for exit code -- if it's 0, command worked,
					// otherwise we need to start the browser up.
					int exitCode = p.waitFor();
					if (exitCode != 0) {
						// Command failed, start up the browser
						// cmd = 'netscape http://www.javaworld.com'
						cmd = UNIX_PATH + "    " + url;
						p = Runtime.getRuntime().exec(cmd);
					}
				} catch (InterruptedException x) {
					System.err.println("Error    bringing    up    browser,    cmd='"
									+ cmd + "'");
					System.err.println("Caught:    " + x);
				}
			}
		} catch (IOException x) {
			// couldn't exec browser
			System.err.println("Could    not    invoke    browser,    command="
					+ cmd);
			System.err.println("Caught:    " + x);
		}
	}

	/**
	 * Try to determine whether this application is running under Windows or
	 * some other platform by examing the "os.name" property.
	 * 
	 * @return true if this application is running under a Windows OS
	 */
	public static boolean isWindowsPlatform() {
		String os = System.getProperty("os.name");
		if (os != null && os.startsWith(WIN_ID))
			return true;
		else
			return false;

	}

	/**
	 * Simple example.
	 */
	public static void main(String[] args) {
		displayURL("http://www.baidu.com");
	}

	// Used to identify the windows platform.
	private static final String WIN_ID = "Windows";
	// The default system browser under windows.
	private static final String WIN_PATH = "rundll32";
	// The flag to display a url.
	private static final String WIN_FLAG = "url.dll,FileProtocolHandler";
	// The default browser under unix.
	private static final String UNIX_PATH = "netscape";
	// The flag to display a url.
	private static final String UNIX_FLAG = "-remote    openURL";
}