不带名称的Avro架构数组

{
  "type": "record",
  "name": "ExampleRecord",
  "fields": [
    {
      "name": "arrayField",
      "type": {
        "type": "array",
        "items": "int"
      }
    }
  ]
}

import org.apache.avro.Schema;
import org.apache.avro.file.DataFileReader;
import org.apache.avro.file.DataFileWriter;
import org.apache.avro.generic.GenericDatumReader;
import org.apache.avro.generic.GenericDatumWriter;
import org.apache.avro.generic.GenericRecord;
import org.apache.avro.io.DatumReader;
import org.apache.avro.io.DatumWriter;

import java.io.File;
import java.io.IOException;

public class AvroArrayExample {
    public static void main(String[] args) throws IOException {
        Schema schema = new Schema.Parser().parse("{\"type\":\"record\",\"name\":\"ExampleRecord\",\"fields\":[{\"name\":\"arrayField\",\"type\":{\"type\":\"array\",\"items\":\"int\"}}]}");

        GenericRecord record = new GenericData.Record(schema);
        record.put("arrayField", new Integer[]{1, 2, 3, 4, 5});

        File file = new File("example.avro");
        DatumWriter<GenericRecord> datumWriter = new GenericDatumWriter<>(schema);
        DataFileWriter<GenericRecord> dataFileWriter = new DataFileWriter<>(datumWriter);
        dataFileWriter.create(schema, file);
        dataFileWriter.append(record);
        dataFileWriter.close();

        DatumReader<GenericRecord> datumReader = new GenericDatumReader<>(schema);
        DataFileReader<GenericRecord> dataFileReader = new DataFileReader<>(file, datumReader);
        GenericRecord readRecord = null;
        while (dataFileReader.hasNext()) {
            readRecord = dataFileReader.next(readRecord);
            System.out.println(readRecord.get("arrayField"));
        }
        dataFileReader.close();
    }
}