uri填路径

public static void main(String[] args) throws IOException {

		String uri = "/user/WeiboAD/DF/part-r-00000";

		BufferedReader br =null;

	    Configuration conf = new Configuration();

	    FileSystem fs = FileSystem. get(URI.create (uri), conf);

	    InputStream in = null;

	    try {

	         in = fs.open( new Path(uri));

	         br = new BufferedReader(new InputStreamReader(in, "UTF-8"));

	         System.out.println(br.readLine());

	        } finally {

	         IOUtils.closeStream(in);

	        }

	}