首页 > 代码库 > hadoop 读取文件操作
hadoop 读取文件操作
- Path hdfsPath = new Path(args[0]);
- Configuration conf = new Configuration();
- FileSystem fs = FileSystem.get(hdfsPath.toUri(),conf);
- CompressionCodecFactory factory = new CompressionCodecFactory(conf);
- CompressionCodec codec = factory.getCodec(hdfsPath);
- FSDataInputStream inputStream = fs.open(hdfsPath);
- BufferedReader reader = null;
- try {
- if (codec == null) {
- reader = new BufferedReader(new InputStreamReader(inputStream));
- } else {
- CompressionInputStream comInputStream = codec.createInputStream(inputStream);
- reader = new BufferedReader(new InputStreamReader(comInputStream));
- }
- } catch (Exception e) {
- e.printStackTrace();
- }
声明:以上内容来自用户投稿及互联网公开渠道收集整理发布,本网站不拥有所有权,未作人工编辑处理,也不承担相关法律责任,若内容有误或涉及侵权可进行投诉: 投诉/举报 工作人员会在5个工作日内联系你,一经查实,本站将立刻删除涉嫌侵权内容。