Email格式验证

public class EmailSpider
{
	public static void main(String[] args)
	{
		try
		{
			BufferedReader br = new BufferedReader(new FileReader(
					"D:\\test.txt"));
			String line = "";
			BufferedWriter bfw = new BufferedWriter(new FileWriter("D:\\t.txt"));
			while ((line = br.readLine()) != null)
			{
				bfw.write(parse(line));
				bfw.newLine();
			}
			bfw.flush();
			bfw.close();
		} catch (FileNotFoundException e)
		{
			e.printStackTrace();
		} catch (IOException e)
		{
			e.printStackTrace();
		}
	}

	private static String parse(String line)
	{
		Pattern p = Pattern.compile("[\\w[.-]]+@[\\w[.-]]+\\.[\\w]+");
		Matcher m = p.matcher(line);
		StringBuffer buf = new StringBuffer();
		while (m.find())
		{
			System.out.println(m.group());
			buf.append(m.group());
		}
		return buf.toString();
	}
}