diff --git a/src/main/java/UnitTest/OpenGaussReplicationToKafka.java b/src/main/java/UnitTest/OpenGaussReplicationToKafka.java
index 0c6a823..dc0f41f 100644
--- a/src/main/java/UnitTest/OpenGaussReplicationToKafka.java
+++ b/src/main/java/UnitTest/OpenGaussReplicationToKafka.java
@@ -1,5 +1,6 @@
 package UnitTest;
 
+import com.alibaba.fastjson.JSONObject;
 import com.jfinal.plugin.activerecord.ActiveRecordPlugin;
 import com.jfinal.plugin.activerecord.Db;
 import com.jfinal.plugin.activerecord.Record;
@@ -177,6 +178,10 @@ public class OpenGaussReplicationToKafka {
                 String res = new String(source, offset, length);
                 if (res.equals("BEGIN")) continue;
                 if (res.startsWith("COMMIT")) continue;
+                JSONObject jo = JSONObject.parseObject(res);
+                jo.put("LSN", key);
+                res = jo.toString();
+
                 ProducerRecord<String, String> record = new ProducerRecord<>(TOPIC, res);
                 kafkaProducer.send(record);
                 System.out.println("send ok ==> " + res);