CsvMapper mapper = new CsvMapper(); CsvSchema schema = CsvSchema.builder() .addColumn("name") .addColumn("age") .build(); CsvFactory factory = new CsvFactory(); factory.setUseThreadLocal(true); List<Person> persons = new ArrayList<>(); CsvMapper mapper = new CsvMapper(); ObjectWriter writer = mapper.writerFor(Person.class).with(schema); File csvFile = new File("output.csv"); writer.writeValues(csvFile).writeAll(persons);