CSV Read
public static void main(String[] args) throws Exception {
File csvFile = new File("file/hello.csv/hello.csv");
try (Reader in = new FileReader(csvFile)) {
CSVParser parser = CSVParser.parse(in, CSVFormat.EXCEL.withFirstRecordAsHeader());
String[] headers = parser.getHeaderMap().keySet().toArray(new String[0]);
Iterable<CSVRecord> records = parser.getRecords();
System.err.println(Arrays.toString(headers));
for (CSVRecord record : records) {
System.err.println(record);
System.err.println(record.size());
}
}
}