你的要求似乎与 Hadoop 完全。您只需要查找 id 根据 hadoop jar 命令。以下代码段将完成此工作：

private static Map<String, Integer> getMovieMappings(String filePath)
        throws IOException {
    Map<String, Integer> movieMap = new HashMap<String, Integer>();
    BufferedReader br = null;
    try {
        br = new BufferedReader(new FileReader(filePath));
        String line;
        while ((line = br.readLine()) != null) {
            String[] temp = line.split(",");
            movieMap.put(temp[2].trim(), Integer.parseInt(temp[0].trim()));
        }
    } finally {
        if (br != null)   br.close(); 
    }
    return movieMap;
}

现在在驱动程序中，只需获取Map并相应地设置输入路径：

Map<String, Integer> movieMap = getMovieMappings("/pathTo/movie_title.txt");
int movieId = movieMap.get(args[2]);
System.out.println(String.format("mv_%06d", movieId));
FileInputFormat.addInputPath( job, 
                              new Path( "training_set",
                                        String.format("mv_%06d", movieId)));

愿它有用。