JAVA读取HDFS信息

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);
	        }
	}