String topic = "order1";

        /*读取配置文件*/
        Properties props = new Properties();
        props.put("bootstrap.servers", "192.168.146.131:9092");
        props.put("acks", "all");
        props.put("retries", 0);
        props.put("batch.size", 16384);
        props.put("linger.ms", 1);
        props.put("buffer.memory", 33554432);
        props.put("key.serializer", "org.apache.kafka.common.serialization.StringSerializer");
        props.put("value.serializer", "org.apache.kafka.common.serialization.StringSerializer");

        Producer<String, String> producer = new KafkaProducer<String,String>(props);
        for (int i = 0; i < 10; i++)
            producer.send(new ProducerRecord<String, String>("order1", Integer.toString(i), UUID.randomUUID().toString()));

        producer.close();

在kafka安装的linux集群上，执行命令生产和消费都没有问题
但是执行上述命令时，kafka没有收到消息
解决：
在kafka的/config/service.properties中，添加上一句host.name=192.168.146.131
IP地址为kafka自己的ip