diff --git a/lab-31/lab-31-rocketmq-demo/src/main/java/cn/iocoder/springboot/lab31/rocketmqdemo/consumer/Demo07Consumer.java b/lab-31/lab-31-rocketmq-demo/src/main/java/cn/iocoder/springboot/lab31/rocketmqdemo/consumer/Demo07Consumer.java
new file mode 100644
index 00000000..e7d2f2fa
--- /dev/null
+++ b/lab-31/lab-31-rocketmq-demo/src/main/java/cn/iocoder/springboot/lab31/rocketmqdemo/consumer/Demo07Consumer.java
@@ -0,0 +1,25 @@
+package cn.iocoder.springboot.lab31.rocketmqdemo.consumer;
+
+import cn.iocoder.springboot.lab31.rocketmqdemo.message.Demo05Message;
+import cn.iocoder.springboot.lab31.rocketmqdemo.message.Demo07Message;
+import org.apache.rocketmq.spring.annotation.RocketMQMessageListener;
+import org.apache.rocketmq.spring.core.RocketMQListener;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Component;
+
+@Component
+@RocketMQMessageListener(
+        topic = Demo07Message.TOPIC,
+        consumerGroup = "demo07-consumer-group-" + Demo05Message.TOPIC
+)
+public class Demo07Consumer implements RocketMQListener<Demo07Message> {
+
+    private Logger logger = LoggerFactory.getLogger(getClass());
+
+    @Override
+    public void onMessage(Demo07Message message) {
+        logger.info("[onMessage][线程编号:{} 消息内容：{}]", Thread.currentThread().getId(), message);
+    }
+
+}
diff --git a/lab-31/lab-31-rocketmq-demo/src/main/java/cn/iocoder/springboot/lab31/rocketmqdemo/ExtRocketMQTemplate.java b/lab-31/lab-31-rocketmq-demo/src/main/java/cn/iocoder/springboot/lab31/rocketmqdemo/core/ExtRocketMQTemplate.java
similarity index 84%
rename from lab-31/lab-31-rocketmq-demo/src/main/java/cn/iocoder/springboot/lab31/rocketmqdemo/ExtRocketMQTemplate.java
rename to lab-31/lab-31-rocketmq-demo/src/main/java/cn/iocoder/springboot/lab31/rocketmqdemo/core/ExtRocketMQTemplate.java
index 7c1af565..ddccec8e 100644
--- a/lab-31/lab-31-rocketmq-demo/src/main/java/cn/iocoder/springboot/lab31/rocketmqdemo/ExtRocketMQTemplate.java
+++ b/lab-31/lab-31-rocketmq-demo/src/main/java/cn/iocoder/springboot/lab31/rocketmqdemo/core/ExtRocketMQTemplate.java
@@ -1,4 +1,4 @@
-package cn.iocoder.springboot.lab31.rocketmqdemo;
+package cn.iocoder.springboot.lab31.rocketmqdemo.core;
 
 import org.apache.rocketmq.spring.annotation.ExtRocketMQTemplateConfiguration;
 import org.apache.rocketmq.spring.core.RocketMQTemplate;
diff --git a/lab-31/lab-31-rocketmq-demo/src/main/java/cn/iocoder/springboot/lab31/rocketmqdemo/producer/Demo07Producer.java b/lab-31/lab-31-rocketmq-demo/src/main/java/cn/iocoder/springboot/lab31/rocketmqdemo/producer/Demo07Producer.java
index db2dcb66..1c1efac4 100644
--- a/lab-31/lab-31-rocketmq-demo/src/main/java/cn/iocoder/springboot/lab31/rocketmqdemo/producer/Demo07Producer.java
+++ b/lab-31/lab-31-rocketmq-demo/src/main/java/cn/iocoder/springboot/lab31/rocketmqdemo/producer/Demo07Producer.java
@@ -1,18 +1,54 @@
 package cn.iocoder.springboot.lab31.rocketmqdemo.producer;
 
-import org.apache.rocketmq.client.producer.SendResult;
+import cn.iocoder.springboot.lab31.rocketmqdemo.message.Demo07Message;
+import org.apache.rocketmq.client.producer.TransactionSendResult;
+import org.apache.rocketmq.spring.annotation.RocketMQTransactionListener;
+import org.apache.rocketmq.spring.core.RocketMQLocalTransactionListener;
+import org.apache.rocketmq.spring.core.RocketMQLocalTransactionState;
 import org.apache.rocketmq.spring.core.RocketMQTemplate;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.messaging.Message;
+import org.springframework.messaging.support.MessageBuilder;
 import org.springframework.stereotype.Component;
 
 @Component
 public class Demo07Producer {
 
+    private static final String TX_PRODUCER_GROUP = "demo07-producer-group";
+
     @Autowired
     private RocketMQTemplate rocketMQTemplate;
 
-    public SendResult syncSendOrderly(Integer id) {
-        return null;
+    public TransactionSendResult sendMessageInTransaction(Integer id) {
+        // 创建 Demo07Message 消息
+        Message message = MessageBuilder.withPayload(new Demo07Message().setId(id))
+                .build();
+        // 发送事务消息
+        return rocketMQTemplate.sendMessageInTransaction(TX_PRODUCER_GROUP, Demo07Message.TOPIC, message,
+                id);
+    }
+
+    @RocketMQTransactionListener(txProducerGroup = TX_PRODUCER_GROUP)
+    public class TransactionListenerImpl implements RocketMQLocalTransactionListener {
+
+        private Logger logger = LoggerFactory.getLogger(getClass());
+
+        @Override
+        public RocketMQLocalTransactionState executeLocalTransaction(Message msg, Object arg) {
+            // ... local transaction process, return rollback, commit or unknown
+            logger.info("[executeLocalTransaction][执行本地事务，消息：{} arg：{}]", msg, arg);
+            return RocketMQLocalTransactionState.UNKNOWN;
+        }
+
+        @Override
+        public RocketMQLocalTransactionState checkLocalTransaction(Message msg) {
+            // ... check transaction status and return rollback, commit or unknown
+            logger.info("[checkLocalTransaction][回查消息：{}]", msg);
+            return RocketMQLocalTransactionState.COMMIT;
+        }
+
     }
 
 }
diff --git a/lab-31/lab-31-rocketmq-demo/src/test/java/cn/iocoder/springboot/lab31/rocketmqdemo/producer/Demo07ProducerTest.java b/lab-31/lab-31-rocketmq-demo/src/test/java/cn/iocoder/springboot/lab31/rocketmqdemo/producer/Demo07ProducerTest.java
new file mode 100644
index 00000000..be023ed7
--- /dev/null
+++ b/lab-31/lab-31-rocketmq-demo/src/test/java/cn/iocoder/springboot/lab31/rocketmqdemo/producer/Demo07ProducerTest.java
@@ -0,0 +1,34 @@
+package cn.iocoder.springboot.lab31.rocketmqdemo.producer;
+
+import cn.iocoder.springboot.lab31.rocketmqdemo.Application;
+import org.apache.rocketmq.client.producer.SendResult;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import java.util.concurrent.CountDownLatch;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(classes = Application.class)
+public class Demo07ProducerTest {
+
+    private Logger logger = LoggerFactory.getLogger(getClass());
+
+    @Autowired
+    private Demo07Producer producer;
+
+    @Test
+    public void testSendMessageInTransaction() throws InterruptedException {
+        int id = (int) (System.currentTimeMillis() / 1000);
+        SendResult result = producer.sendMessageInTransaction(id);
+        logger.info("[testSendMessageInTransaction][发送编号：[{}] 发送结果：[{}]]", id, result);
+
+        // 阻塞等待，保证消费
+        new CountDownLatch(1).await();
+    }
+
+}