hadoop之sequenceFile

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--------------------------Demo

protected void setup(Context context) throws IOException, InterruptedException {Configuration conf = context.getConfiguration();// 设置配置文件名System.setProperty("config-file", conf.get("config-file"));URI[] uris = context.getCacheFiles();if (uris != null) {for (URI uri : uris) {String filename = uri.toString().substring(uri.toString().lastIndexOf("/") + 1);log.info(BaseConstant.LOG_PREFIX + "cache file is " + filename);Reader reader = new SequenceFile.Reader(conf, Reader.file(new Path(filename)));LongWritable key = new LongWritable();Text value = new Text();while (reader.next(key, value)) {String[] datas = value.toString().split("\\|");    }    reader.close();}}}