Add km module kafka

docs/zh/Kafka客户端/python_client.md

@@ -0,0 +1,67 @@
+# Python客户端 接入 Kafka
+
+## 安装
+
+```shell
+# python kafka客户端采用kafka-python(1.4.6)及以上
+pip install kafka-python
+
+#使用lz4压缩需要
+pip install lz4
+
+#使用snappy压缩需要
+pip install snappy
+pip install python-snappy
+```
+
+## 发送例子
+
+```python
+from kafka import KafkaConsumer,KafkaProducer
+import logging
+import time
+import json
+#logging.basicConfig(level=logging.DEBUG)
+BOOTSTRAP_SERVERS='127.0.0.1:9093'
+TOPIC='test0'
+ 
+producer=KafkaProducer(bootstrap_servers=BOOTSTRAP_SERVERS,
+                       compression_type="lz4",
+                       security_protocol="SASL_PLAINTEXT",
+                       sasl_mechanism="PLAIN",
+                       sasl_plain_username='95.appId_000001',    //clusterId.appId
+                       sasl_plain_password='12345'
+)
+for i in range(10):
+    producer.send(TOPIC, bytes("Hello World".encode('utf-8')))
+producer.flush()
+```
+
+
+## 消费例子
+
+```python
+from kafka import KafkaConsumer,KafkaProducer
+import logging
+import time
+import json
+#logging.basicConfig(level=logging.DEBUG)
+BOOTSTRAP_SERVERS='127.0.0.1:9093'
+TOPIC='test0'
+consumer = KafkaConsumer(TOPIC,
+                        group_id = 'test_group'
+                        bootstrap_servers=BOOTSTRAP_SERVERS,
+                        auto_offset_reset='earliest',
+                        security_protocol='SASL_PLAINTEXT',
+                        sasl_mechanism='PLAIN',
+                        sasl_plain_username='95.appId_000001',     //clusterId.appId
+                        sasl_plain_password='12345',
+                        receive_buffer_bytes=1024,
+                        enable_auto_commit='False')
+ 
+ 
+for msg in consumer:
+    print(msg)
+ 
+consumer.commit()
+```