使用java讀取文件中的中文問題

在讀取的時候，給予讀取格式。

public String download(String urlStr) {
		StringBuffer sb = new StringBuffer();
		String line = null;
		BufferedReader buffer = null;
		try {
			// 創建一個URL對象
			url = new URL(urlStr);
			// 創建一個Http連接
			HttpURLConnection urlConn = (HttpURLConnection) url
					.openConnection();
			// 使用IO流讀取數據
			buffer = new BufferedReader(new InputStreamReader(urlConn
					.getInputStream(),"<span style="color:#ff0000;">UTF-8</span>"));
			while ((line = buffer.readLine()) != null) {
				sb.append(line);
			}
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				buffer.close();
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
		return sb.toString();
	}