增加描述信息

Author: cloudAndMonkey

APIJSON-Java-Server/APIJSONDemo-MultiDataSource-Kafka/README.md

@@ -9,5 +9,38 @@
 Access表名 = 消息队列 topic
 
 Access表配置说明：
+![image](https://user-images.githubusercontent.com/12228225/210956299-204115a7-433c-4f18-af27-5120068dab2e.png)
+Request表配置post权限
+![image](https://user-images.githubusercontent.com/12228225/210956378-be095589-0ced-4317-bb46-6b296538f26e.png)
 
-![image-20230106155124881](/Users/xy/Library/Application Support/typora-user-images/image-20230106155124881.png)
+apijson发送mq消息：
+单条
+{
+"@datasource": "kafka",
+ "Topic_User":{
+ "message":"test-101"
+ },
+ "tag": "Topic_User",
+ "@explain": false
+}
+多条
+{
+ "Topic_User[]": [
+ {
+ "message":"test-100"
+ },
+ {
+ "message":"test-101"
+ }
+ ],
+ "tag": "Topic_User[]",
+ "@datasource": "kafka",
+ "@explain": true
+}
+
+客户端接收消息：
+offset = 47, key = null, value = test-101
+offset = 48, key = null, value = test-100
+offset = 49, key = null, value = test-101
+
+用java代码方式，获取具体数据源，调用即可