JAVA读取HDFS信息

最新推荐文章于 2024-07-25 16:52:43 发布

转载最新推荐文章于 2024-07-25 16:52:43 发布 · 161 阅读

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原文链接：http://www.cnblogs.com/WinseterCheng/p/8867638.html

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#java

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);

            }
    }

转载于:https://www.cnblogs.com/WinseterCheng/p/8867638.html