/**
      * @parameter fileName 要读取的文件名
      * @return 文件内容
 */
public static String readFile(String fileName) {
    String context = "";
    File f = new File(fileName);
    BufferedReader bufReader = null;
    try {
        InputStreamReader isr = new InputStreamReader(new FileInputStream(fileName), "GBK");
        bufReader = new BufferedReader(isr);
        context = bufReader.readLine();

    } catch (IOException ie) {
        ie.printStackTrace();
    } finally {
        try {
            bufReader.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    return context;
}