Python往kafka生产消费数据
安装 kafka: pip install kafka-python
生产数据
1 from kafka import KafkaProducer 2 import json 3 4 ''' 5 生产者demo 6 向test_lyl2主题中循环写入10条json数据 7 注意事项:要写入json数据需加上value_serializer参数,如下代码 8 ''' 9 producer = KafkaProducer( 10 value_serializer=lambda v: json.dumps(v).encode('utf-8'), 11 bootstrap_servers=['192.168.12.101:6667','192.168.12.102:6667','192.168.12.103:6667'] 12 ) 13 for i in range(10): 14 data={ 15 "name":"李四", 16 "age":23, 17 "gender":"男", 18 "id":i 19 } 20 producer.send('test_lyl2', data) 21 producer.close()
消费数据
1 from kafka import KafkaConsumer 2 import json 3 4 ''' 5 消费者demo 6 消费test_lyl2主题中的数据 7 注意事项:如需以json格式读取数据需加上value_deserializer参数 8 ''' 9 10 11 consumer = KafkaConsumer('test_lyl2',group_id="lyl-gid1", 12 bootstrap_servers=['192.168.12.101:6667','192.168.12.102:6667','192.168.12.103:6667'], 13 auto_offset_reset='earliest',value_deserializer=json.loads 14 ) 15 for message in consumer: 16 print(message.value)