diff --git a/im-client/src/main/java/net/sopod/soim/client/config/exception/ClientException.java b/im-client/src/main/java/net/sopod/soim/client/config/exception/ClientException.java
new file mode 100644
index 0000000..c1a1991
--- /dev/null
+++ b/im-client/src/main/java/net/sopod/soim/client/config/exception/ClientException.java
@@ -0,0 +1,32 @@
+package net.sopod.soim.client.config.exception;
+
+import net.sopod.soim.common.dubbo.exception.SoimException;
+
+/**
+ * ClientException
+ *
+ * @author tmy
+ * @date 2022-06-02 22:46
+ */
+public class ClientException extends SoimException {
+
+    public ClientException() {
+    }
+
+    public ClientException(String message) {
+        super(message);
+    }
+
+    public ClientException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public ClientException(Throwable cause) {
+        super(cause);
+    }
+
+    public ClientException(String message, Throwable cause, boolean writableStackTrace) {
+        super(message, cause, writableStackTrace);
+    }
+
+}
diff --git a/im-client/src/main/java/net/sopod/soim/client/protocol/ImMessageInboundHandler.java b/im-client/src/main/java/net/sopod/soim/client/protocol/ImMessageInboundHandler.java
index 39e9e45..c6cdc58 100644
--- a/im-client/src/main/java/net/sopod/soim/client/protocol/ImMessageInboundHandler.java
+++ b/im-client/src/main/java/net/sopod/soim/client/protocol/ImMessageInboundHandler.java
@@ -1,8 +1,10 @@
 package net.sopod.soim.client.protocol;
 
+import io.netty.buffer.ByteBuf;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.SimpleChannelInboundHandler;
 import net.sopod.soim.data.serialize.ImMessage;
+import net.sopod.soim.data.serialize.ImMessageCodec;
 
 /**
  * ImMessageInboundHandler
@@ -10,13 +12,14 @@ import net.sopod.soim.data.serialize.ImMessage;
  * @author tmy
  * @date 2022-06-02 17:51
  */
-public class ImMessageInboundHandler extends SimpleChannelInboundHandler<ImMessage> {
+public class ImMessageInboundHandler extends SimpleChannelInboundHandler<ByteBuf> {
 
     @Override
-    protected void channelRead0(ChannelHandlerContext channelHandlerContext, ImMessage imMessage) throws Exception {
+    protected void channelRead0(ChannelHandlerContext channelHandlerContext, ByteBuf bytebuf) throws Exception {
+        ImMessage imMessage = ImMessageCodec.decodeImMessage(bytebuf);
         // 请求序列号，complete 对应 CompletableFuture
         int serialNo = imMessage.getSerialNo();
-
+        MessageQueueHolder.getInstance().futureComplete(serialNo, imMessage.getDecodeBody());
     }
 
 }
diff --git a/im-client/src/main/java/net/sopod/soim/client/protocol/MessageQueueHolder.java b/im-client/src/main/java/net/sopod/soim/client/protocol/MessageQueueHolder.java
index 0ee47cd..f8fd727 100644
--- a/im-client/src/main/java/net/sopod/soim/client/protocol/MessageQueueHolder.java
+++ b/im-client/src/main/java/net/sopod/soim/client/protocol/MessageQueueHolder.java
@@ -1,5 +1,14 @@
 package net.sopod.soim.client.protocol;
 
+import com.google.protobuf.MessageLite;
+import org.apache.commons.lang3.tuple.Pair;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.atomic.AtomicInteger;
+
 /**
  * MessageQueueHolder
  * 发送一条消息产生一个序列号，在队列中等待响应消息
@@ -9,10 +18,46 @@ package net.sopod.soim.client.protocol;
  */
 public class MessageQueueHolder {
 
+    private static final Logger logger = LoggerFactory.getLogger(MessageQueueHolder.class);
+
+    private static MessageQueueHolder INSTANCE;
 
+    private final AtomicInteger serialNoGen;
 
-    public void a() {
+    // TODO 超时处理
+    private final ConcurrentHashMap<Integer, CompletableFuture<Object>> futureMap;
+
+    private MessageQueueHolder() {
+        this.serialNoGen = new AtomicInteger();
+        this.futureMap = new ConcurrentHashMap<>();
+    }
+
+    public static MessageQueueHolder getInstance() {
+        if (INSTANCE == null) {
+            synchronized (MessageQueueHolder.class) {
+                if (INSTANCE == null) {
+                    INSTANCE = new MessageQueueHolder();
+                }
+            }
+        }
+        return INSTANCE;
+    }
+
+    public Pair<Integer, CompletableFuture<Object>> nextSerialNo() {
+        int serialNo = serialNoGen.incrementAndGet();
+        CompletableFuture<Object> future = new CompletableFuture<>();
+        futureMap.put(serialNo, future);
+        logger.info("put future: {}", serialNo);
+        return Pair.of(serialNo, future);
+    }
 
+    public void futureComplete(int serialNo, MessageLite body) {
+        CompletableFuture<Object> completableFuture = futureMap.remove(serialNo);
+        if (completableFuture == null) {
+            logger.error("无等待消息的future: {}, {}", serialNo, body);
+        } else {
+            completableFuture.complete(body);
+        }
     }
 
 }
diff --git a/im-client/src/main/java/net/sopod/soim/client/session/SoImSession.java b/im-client/src/main/java/net/sopod/soim/client/session/SoImSession.java
index d7fca2b..09e97ab 100644
--- a/im-client/src/main/java/net/sopod/soim/client/session/SoImSession.java
+++ b/im-client/src/main/java/net/sopod/soim/client/session/SoImSession.java
@@ -9,12 +9,20 @@ import io.netty.channel.ChannelInitializer;
 import io.netty.channel.nio.NioEventLoopGroup;
 import io.netty.channel.socket.SocketChannel;
 import io.netty.channel.socket.nio.NioSocketChannel;
+import io.netty.handler.logging.LogLevel;
+import io.netty.handler.logging.LoggingHandler;
+import net.sopod.soim.client.config.exception.ClientException;
 import net.sopod.soim.client.logger.Logger;
-import net.sopod.soim.common.res.R;
+import net.sopod.soim.client.protocol.ImMessageInboundHandler;
+import net.sopod.soim.client.protocol.MessageQueueHolder;
+import net.sopod.soim.common.util.ImClock;
 import net.sopod.soim.common.util.netty.Varint32FrameCodec;
+import net.sopod.soim.data.proto.ProtoMessageManager;
+import net.sopod.soim.data.serialize.ImMessage;
 import net.sopod.soim.data.serialize.ImMessageCodec;
 import net.sopod.soim.data.msg.auth.Auth;
 import net.sopod.soim.data.msg.chat.Chat;
+import org.apache.commons.lang3.tuple.Pair;
 import org.slf4j.LoggerFactory;
 
 import java.util.concurrent.CompletableFuture;
@@ -60,18 +68,23 @@ public class SoImSession {
                     @Override
                     protected void initChannel(SocketChannel ch) throws Exception {
                         ch.pipeline()
+                            .addLast(new LoggingHandler(LogLevel.INFO))
                             .addLast(new Varint32FrameCodec())
-                            .addLast(new ImMessageCodec.ProtoMsg2ImMessageEncoder())
+//                            .addLast(new ImMessageCodec())
                             .addLast(new ImMessageCodec.ImMessage2ByteEncoder())
-                            .addLast(new ImMessageCodec.ImMessageDecoder())
-                            .addLast(messageDispatcher);
+//                            .addLast(new ImMessageCodec.ImMessageDecoder())
+                            .addLast(new ImMessageInboundHandler());
+                            // .addLast(messageDispatcher);
                     }
                 });
         try {
             Logger.info("连接中...");
             clientChannel = b.connect(host, port).await().channel();
             // 连接后立即发送认证消息，10s未认证连接关闭
-            clientChannel.writeAndFlush(tokenAuth);
+            CompletableFuture<?> future = this.send0(tokenAuth);
+            long start = ImClock.millis();
+            Object res = future.join();
+            logger.info("future 响应: {}, {}ms", res, ImClock.millis() - start);
             this.account = account;
         } catch (Exception e) {
             Logger.error("连接服务器失败: {}", e.getMessage());
@@ -92,21 +105,37 @@ public class SoImSession {
         this.close();
     }
 
+    private CompletableFuture<?> send0(MessageLite message) {
+        if (clientChannel == null
+                || !clientChannel.isActive()) {
+            throw new ClientException("连接已关闭");
+        }
+        // 构建 ImMessage
+        Integer serialNo = ProtoMessageManager.getSerialNo(message.getClass());
+        if (serialNo == null) {
+            throw new ClientException("未知的消息类型:" + message.getClass());
+        }
+        ImMessage imMessage = new ImMessage()
+                .setServiceNo(serialNo)
+                .setBody(message.toByteArray());
+        // serialNo, Future
+        Pair<Integer, CompletableFuture<Object>> futurePair = MessageQueueHolder.getInstance().nextSerialNo();
+        imMessage.setSerialNo(futurePair.getLeft());
+
+        clientChannel.writeAndFlush(imMessage);
+        return futurePair.getRight();
+    }
+
     /**
      * 发送消息
      */
+    @SuppressWarnings("unchecked")
     public <T> CompletableFuture<T> send(MessageLite message) {
         if (!auth.get()) {
             Logger.error("请先登录");
             return null;
         }
-        if (clientChannel == null
-            || !clientChannel.isActive()) {
-            Logger.error("连接已关闭");
-            return null;
-        }
-        clientChannel.writeAndFlush(message);
-        return new CompletableFuture<>();
+        return (CompletableFuture<T>) send0(message);
     }
 
     public void textChat(String receiverName, String message) {
diff --git a/im-common/src/main/java/net/sopod/soim/common/dubbo/exception/ConvertException.java b/im-common/src/main/java/net/sopod/soim/common/dubbo/exception/ConvertException.java
new file mode 100644
index 0000000..09f2b38
--- /dev/null
+++ b/im-common/src/main/java/net/sopod/soim/common/dubbo/exception/ConvertException.java
@@ -0,0 +1,31 @@
+package net.sopod.soim.common.dubbo.exception;
+
+/**
+ * ConvertException
+ *
+ * @author tmy
+ * @date 2022-06-02 22:58
+ */
+public class ConvertException extends SoimException {
+
+    public ConvertException() {
+        super();
+    }
+
+    public ConvertException(String message) {
+        super(message);
+    }
+
+    public ConvertException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public ConvertException(Throwable cause) {
+        super(cause);
+    }
+
+    public ConvertException(String message, Throwable cause, boolean writableStackTrace) {
+        super(message, cause, writableStackTrace);
+    }
+
+}
diff --git a/im-common/src/main/java/net/sopod/soim/common/exception/ConvertException.java b/im-common/src/main/java/net/sopod/soim/common/exception/ConvertException.java
deleted file mode 100644
index 7f0b9ea..0000000
--- a/im-common/src/main/java/net/sopod/soim/common/exception/ConvertException.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package net.sopod.soim.common.exception;
-
-/**
- * ConvertException
- *
- * @author tmy
- * @date 2022-03-27 17:18
- */
-public class ConvertException extends Exception {
-
-    private Throwable originException;
-
-}
diff --git a/im-common/src/main/java/net/sopod/soim/common/res/R.java b/im-common/src/main/java/net/sopod/soim/common/res/R.java
deleted file mode 100644
index 7dd6b23..0000000
--- a/im-common/src/main/java/net/sopod/soim/common/res/R.java
+++ /dev/null
@@ -1,11 +0,0 @@
-package net.sopod.soim.common.res;
-
-/**
- * R
- *
- * @author tmy
- * @date 2022-06-02 15:31
- */
-public class R {
-
-}
diff --git a/im-das-api/im-das-user-api/src/main/java/net/sopod/soim/das/user/api/config/ChatPersistentRabbitMQConfiguration.java b/im-das-api/im-das-user-api/src/main/java/net/sopod/soim/das/user/api/config/ChatPersistentRabbitMQConfiguration.java
index 5e057bf..095c9d2 100644
--- a/im-das-api/im-das-user-api/src/main/java/net/sopod/soim/das/user/api/config/ChatPersistentRabbitMQConfiguration.java
+++ b/im-das-api/im-das-user-api/src/main/java/net/sopod/soim/das/user/api/config/ChatPersistentRabbitMQConfiguration.java
@@ -2,16 +2,15 @@ package net.sopod.soim.das.user.api.config;
 
 import net.sopod.soim.das.user.api.mq.ChatMQMessageConverter;
 import net.sopod.soim.das.user.api.mq.ChatQueueType;
+import net.sopod.soim.das.user.api.service.DasMQPersistentService;
 import org.springframework.amqp.core.Queue;
 import org.springframework.amqp.rabbit.connection.CachingConnectionFactory;
 import org.springframework.amqp.rabbit.core.RabbitTemplate;
 import org.springframework.amqp.support.converter.MessageConverter;
 import org.springframework.beans.factory.support.BeanDefinitionRegistry;
 import org.springframework.beans.factory.support.RootBeanDefinition;
-import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
-import org.springframework.context.annotation.Import;
 import org.springframework.context.annotation.ImportBeanDefinitionRegistrar;
 import org.springframework.core.type.AnnotationMetadata;
 
@@ -53,4 +52,9 @@ public class ChatPersistentRabbitMQConfiguration implements ImportBeanDefinition
         return rabbitTemplate;
     }
 
+    @Bean
+    public DasMQPersistentService dasPersistentService(RabbitTemplate rabbitTemplate) {
+        return new DasMQPersistentService(rabbitTemplate);
+    }
+
 }
diff --git a/im-das-api/im-das-user-api/src/main/java/net/sopod/soim/das/user/api/mq/ChatMQMessageConverter.java b/im-das-api/im-das-user-api/src/main/java/net/sopod/soim/das/user/api/mq/ChatMQMessageConverter.java
index 67a3ee9..106cd66 100644
--- a/im-das-api/im-das-user-api/src/main/java/net/sopod/soim/das/user/api/mq/ChatMQMessageConverter.java
+++ b/im-das-api/im-das-user-api/src/main/java/net/sopod/soim/das/user/api/mq/ChatMQMessageConverter.java
@@ -60,8 +60,12 @@ public class ChatMQMessageConverter extends AbstractMessageConverter {
         MessageProperties messageProperties = message.getMessageProperties();
         Object ordinal = messageProperties.getHeaders().get(MQ_MSG_TYPE);
         Object isSnappy = messageProperties.getHeaders().get(MQ_MSG_IS_SNAPPY);
-        ChatQueueType chatQueueType = ChatQueueType.getMQType(Converter.toInt(ordinal),
-                ori -> new MessageConversionException(String.format("没有ordinal为%d的消息类型,在MQType添加", ori)));
+        String consumerQueue = messageProperties.getConsumerQueue();
+        // 获取mq消息类型
+        ChatQueueType chatQueueType = ordinal == null
+                ? ChatQueueType.getMQType(consumerQueue, queue -> new MessageConversionException(String.format("没有队列为%s的消息类型,在MQType添加", queue)))
+                :  ChatQueueType.getMQType(Converter.toInt(ordinal), ori -> new MessageConversionException(String.format("没有ordinal为%d的消息类型,在MQType添加", ori)));
+        // 反序列化字节数据
         byte[] body = message.getBody();
         if (Boolean.TRUE.equals(isSnappy)) {
             try {
diff --git a/im-das-api/im-das-user-api/src/main/java/net/sopod/soim/das/user/api/mq/ChatQueueType.java b/im-das-api/im-das-user-api/src/main/java/net/sopod/soim/das/user/api/mq/ChatQueueType.java
index 0454a24..bfb4ad5 100644
--- a/im-das-api/im-das-user-api/src/main/java/net/sopod/soim/das/user/api/mq/ChatQueueType.java
+++ b/im-das-api/im-das-user-api/src/main/java/net/sopod/soim/das/user/api/mq/ChatQueueType.java
@@ -70,4 +70,14 @@ public enum ChatQueueType {
         throw exceptionProvider.apply(ordinal);
     }
 
+    public static ChatQueueType getMQType(String queueName, Function<String, RuntimeException> exceptionProvider) {
+        ChatQueueType[] values = values();
+        for (ChatQueueType queueType : values) {
+            if (queueType.getQueueName().equals(queueName)) {
+                return queueType;
+            }
+        }
+        throw exceptionProvider.apply(queueName);
+    }
+
 }
diff --git a/im-das-api/im-das-user-api/src/main/java/net/sopod/soim/das/user/api/service/DasMQPersistentService.java b/im-das-api/im-das-user-api/src/main/java/net/sopod/soim/das/user/api/service/DasMQPersistentService.java
new file mode 100644
index 0000000..90caedd
--- /dev/null
+++ b/im-das-api/im-das-user-api/src/main/java/net/sopod/soim/das/user/api/service/DasMQPersistentService.java
@@ -0,0 +1,30 @@
+package net.sopod.soim.das.user.api.service;
+
+import net.sopod.soim.das.user.api.model.entity.ImGroupMessage;
+import net.sopod.soim.das.user.api.model.entity.ImMessage;
+import net.sopod.soim.das.user.api.mq.ChatQueueType;
+import org.springframework.amqp.rabbit.core.RabbitTemplate;
+
+/**
+ * DasPersistentService
+ *
+ * @author tmy
+ * @date 2022-06-02 20:28
+ */
+public class DasMQPersistentService {
+
+    private final RabbitTemplate rabbitTemplate;
+
+    public DasMQPersistentService(RabbitTemplate rabbitTemplate) {
+        this.rabbitTemplate = rabbitTemplate;
+    }
+
+    public void saveImMessage(ImMessage imMessage) {
+        rabbitTemplate.convertAndSend(ChatQueueType.IM_MESSAGE.getQueueName(), imMessage);
+    }
+
+    public void saveImGroupMessage(ImGroupMessage imGroupMessage) {
+        rabbitTemplate.convertAndSend(ChatQueueType.IM_GROUP_MESSAGE.getQueueName(), imGroupMessage);
+    }
+
+}
diff --git a/im-das/im-das-user/src/main/java/net/sopod/soim/das/user/amqp/Sender.java b/im-das/im-das-user/src/main/java/net/sopod/soim/das/user/amqp/Sender.java
index 7dbff13..368881d 100644
--- a/im-das/im-das-user/src/main/java/net/sopod/soim/das/user/amqp/Sender.java
+++ b/im-das/im-das-user/src/main/java/net/sopod/soim/das/user/amqp/Sender.java
@@ -7,14 +7,11 @@ import net.sopod.soim.das.user.api.model.entity.ImGroupMessage;
 import net.sopod.soim.das.user.api.model.entity.ImMessage;
 import net.sopod.soim.das.user.api.mq.ChatQueueType;
 import net.sopod.soim.logic.api.segmentid.core.SegmentIdGenerator;
-import org.apache.dubbo.config.annotation.DubboReference;
 import org.springframework.amqp.core.AmqpTemplate;
 import org.springframework.boot.context.event.ApplicationReadyEvent;
 import org.springframework.context.ApplicationListener;
 import org.springframework.context.ConfigurableApplicationContext;
-import org.springframework.stereotype.Component;
 
-import java.util.Random;
 import java.util.concurrent.TimeUnit;
 
 /**
@@ -23,7 +20,7 @@ import java.util.concurrent.TimeUnit;
  * @author tmy
  * @date 2022-05-28 16:23
  */
-@Component
+//@Component
 @AllArgsConstructor
 public class Sender implements ApplicationListener<ApplicationReadyEvent> {
 
diff --git a/im-das/im-das-user/src/main/java/net/sopod/soim/das/user/service/FriendDasImpl.java b/im-das/im-das-user/src/main/java/net/sopod/soim/das/user/service/FriendDasImpl.java
index 33d1efa..06f147b 100644
--- a/im-das/im-das-user/src/main/java/net/sopod/soim/das/user/service/FriendDasImpl.java
+++ b/im-das/im-das-user/src/main/java/net/sopod/soim/das/user/service/FriendDasImpl.java
@@ -3,7 +3,6 @@ package net.sopod.soim.das.user.service;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import lombok.AllArgsConstructor;
-import net.sopod.soim.common.constant.LogicConsts;
 import net.sopod.soim.common.util.Collects;
 import net.sopod.soim.common.util.ImClock;
 import net.sopod.soim.das.user.api.config.LogicTables;
diff --git a/im-entry/src/main/java/net/sopod/soim/entry/delay/NetUserDelayTaskManager.java b/im-entry/src/main/java/net/sopod/soim/entry/delay/NetUserDelayTaskManager.java
index d51607e..e6daa95 100644
--- a/im-entry/src/main/java/net/sopod/soim/entry/delay/NetUserDelayTaskManager.java
+++ b/im-entry/src/main/java/net/sopod/soim/entry/delay/NetUserDelayTaskManager.java
@@ -41,7 +41,7 @@ public class NetUserDelayTaskManager {
                     if (netUser.isActive()) {
                         // 延时任务执行时 NetUser 可能已升级为 Account
                         NetUser curNetUser = netUser.channel().attr(NetUser.NET_USER_KEY).get();
-                        ProtoMessageDispatcher.dispatch(curNetUser, delayTask.getTaskMsg());
+                        ProtoMessageDispatcher.dispatch(null, curNetUser, delayTask.getTaskMsg());
                     } else {
                         logger.info("delayTask netUser inactive, task cancel!");
                     }
diff --git a/im-entry/src/main/java/net/sopod/soim/entry/server/ImEntryInitializer.java b/im-entry/src/main/java/net/sopod/soim/entry/server/ImEntryInitializer.java
index 14eb834..501fe9b 100644
--- a/im-entry/src/main/java/net/sopod/soim/entry/server/ImEntryInitializer.java
+++ b/im-entry/src/main/java/net/sopod/soim/entry/server/ImEntryInitializer.java
@@ -27,7 +27,8 @@ public class ImEntryInitializer extends ChannelInitializer<SocketChannel> {
         ChannelPipeline pipeline = socketChannel.pipeline();
         pipeline.addLast(new LoggingHandler(logLevel))
                 .addLast(new Varint32FrameCodec())
-                .addLast(new ImMessageCodec())
+                .addLast(new ImMessageCodec.ImMessageDecoder())
+                .addLast(new ImMessageCodec.ImMessage2ByteEncoder())
                 .addLast(new InboundImMessageHandler());
     }
 
diff --git a/im-entry/src/main/java/net/sopod/soim/entry/server/InboundImMessageHandler.java b/im-entry/src/main/java/net/sopod/soim/entry/server/InboundImMessageHandler.java
index 25e1389..2af8b24 100644
--- a/im-entry/src/main/java/net/sopod/soim/entry/server/InboundImMessageHandler.java
+++ b/im-entry/src/main/java/net/sopod/soim/entry/server/InboundImMessageHandler.java
@@ -1,11 +1,12 @@
 package net.sopod.soim.entry.server;
 
-import com.google.protobuf.MessageLite;
 import io.netty.channel.Channel;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.SimpleChannelInboundHandler;
 import io.netty.util.Attribute;
 import net.sopod.soim.common.util.ImClock;
+import net.sopod.soim.data.serialize.ImMessage;
+import net.sopod.soim.entry.server.handler.ImContext;
 import net.sopod.soim.entry.server.session.NetUser;
 import net.sopod.soim.data.msg.task.Tasks;
 import net.sopod.soim.entry.delay.NetUserDelayTaskManager;
@@ -19,7 +20,7 @@ import java.util.concurrent.atomic.AtomicInteger;
  * @author tmy
  * @date 2022-04-10 22:40
  */
-public class InboundImMessageHandler extends SimpleChannelInboundHandler<MessageLite> {
+public class InboundImMessageHandler extends SimpleChannelInboundHandler<ImMessage> {
 
     /**
      * channel 建立连接，设置初始属性
@@ -50,11 +51,12 @@ public class InboundImMessageHandler extends SimpleChannelInboundHandler<Message
     }
 
     @Override
-    protected void channelRead0(ChannelHandlerContext ctx, MessageLite messageLite) throws Exception {
+    protected void channelRead0(ChannelHandlerContext ctx, ImMessage imMessage) throws Exception {
         Attribute<NetUser> netUserAttr = ctx.channel().attr(NetUser.NET_USER_KEY);
         NetUser netUser = netUserAttr.get();
+        ImContext execCtx = new ImContext(imMessage.getSerialNo());
         // TODO dispatcher
-        ProtoMessageDispatcher.dispatch(netUser, messageLite);
+        ProtoMessageDispatcher.dispatch(execCtx, netUser, imMessage.getDecodeBody());
     }
 
 }
diff --git a/im-entry/src/main/java/net/sopod/soim/entry/server/ProtoMessageDispatcher.java b/im-entry/src/main/java/net/sopod/soim/entry/server/ProtoMessageDispatcher.java
index fbf54a1..b0ecfd7 100644
--- a/im-entry/src/main/java/net/sopod/soim/entry/server/ProtoMessageDispatcher.java
+++ b/im-entry/src/main/java/net/sopod/soim/entry/server/ProtoMessageDispatcher.java
@@ -2,6 +2,8 @@ package net.sopod.soim.entry.server;
 
 import com.google.protobuf.MessageLite;
 import net.sopod.soim.common.constant.DubboConstant;
+import net.sopod.soim.common.dubbo.exception.SoimException;
+import net.sopod.soim.entry.server.handler.ImContext;
 import net.sopod.soim.entry.server.handler.MessageHandler;
 import net.sopod.soim.entry.registry.ProtoMessageHandlerRegistry;
 import net.sopod.soim.entry.server.session.Account;
@@ -18,20 +20,20 @@ import net.sopod.soim.entry.worker.WorkerGroup;
  */
 public class ProtoMessageDispatcher {
 
-    public static void dispatch(NetUser netUser, MessageLite message) {
+    public static void dispatch(ImContext ctx, NetUser netUser, MessageLite message) {
         MessageHandler<MessageLite> typeHandler = ProtoMessageHandlerRegistry
                 .getTypeHandler(message.getClass());
         if (typeHandler == null) {
-            throw new IllegalCallerException("no handler for message : " + message.getClass());
+            throw new SoimException("no handler for message type: " + message.getClass());
         }
         Worker worker = WorkerGroup.next();
         worker.execute(() -> {
             if (netUser.isAccount()) {
-                Account account = (Account)netUser;
+                Account account = (Account) netUser;
                 MessageHandlerContext.setAttribute(DubboConstant.CTX_UID, String.valueOf(account.getUid()));
             }
             try {
-                typeHandler.exec(netUser, message);
+                typeHandler.exec(ctx, netUser, message);
             } finally {
                 MessageHandlerContext.remove();
             }
diff --git a/im-entry/src/main/java/net/sopod/soim/entry/server/handler/AccountMessageHandler.java b/im-entry/src/main/java/net/sopod/soim/entry/server/handler/AccountMessageHandler.java
index 12e1d31..b77ca6b 100644
--- a/im-entry/src/main/java/net/sopod/soim/entry/server/handler/AccountMessageHandler.java
+++ b/im-entry/src/main/java/net/sopod/soim/entry/server/handler/AccountMessageHandler.java
@@ -14,13 +14,13 @@ import net.sopod.soim.entry.server.session.NetUser;
 public abstract class AccountMessageHandler<T> implements MessageHandler<T> {
 
     @Override
-    public final void exec(NetUser netUser, T req) {
+    public final void exec(ImContext ctx, NetUser netUser, T req) {
         if (!netUser.isAccount()) {
             throw new IllegalStateException("NetUser is not account!" + netUser);
         }
         MessageLite res = handle((Account) netUser, req);
         if (res != null) {
-            netUser.writeNow(res);
+            netUser.writeNow(ctx, res);
         }
     }
 
diff --git a/im-entry/src/main/java/net/sopod/soim/entry/server/handler/ImContext.java b/im-entry/src/main/java/net/sopod/soim/entry/server/handler/ImContext.java
new file mode 100644
index 0000000..f9028d1
--- /dev/null
+++ b/im-entry/src/main/java/net/sopod/soim/entry/server/handler/ImContext.java
@@ -0,0 +1,22 @@
+package net.sopod.soim.entry.server.handler;
+
+/**
+ * ExecContext
+ *
+ * @author tmy
+ * @date 2022-06-02 23:31
+ */
+public class ImContext {
+
+    /** 请求id */
+    private final Integer serialNo;
+
+    public ImContext(Integer serialNo) {
+        this.serialNo = serialNo;
+    }
+
+    public Integer getSerialNo() {
+        return serialNo;
+    }
+
+}
diff --git a/im-entry/src/main/java/net/sopod/soim/entry/server/handler/MessageHandler.java b/im-entry/src/main/java/net/sopod/soim/entry/server/handler/MessageHandler.java
index d2242e5..5610e7a 100644
--- a/im-entry/src/main/java/net/sopod/soim/entry/server/handler/MessageHandler.java
+++ b/im-entry/src/main/java/net/sopod/soim/entry/server/handler/MessageHandler.java
@@ -10,6 +10,6 @@ import net.sopod.soim.entry.server.session.NetUser;
  */
 public interface MessageHandler<T> {
 
-    void exec(NetUser netUser, T msg);
+    void exec(ImContext ctx, NetUser netUser, T msg);
 
 }
diff --git a/im-entry/src/main/java/net/sopod/soim/entry/server/handler/NetUserMessageHandler.java b/im-entry/src/main/java/net/sopod/soim/entry/server/handler/NetUserMessageHandler.java
index cbef33a..0c4c8e5 100644
--- a/im-entry/src/main/java/net/sopod/soim/entry/server/handler/NetUserMessageHandler.java
+++ b/im-entry/src/main/java/net/sopod/soim/entry/server/handler/NetUserMessageHandler.java
@@ -12,10 +12,10 @@ import net.sopod.soim.entry.server.session.NetUser;
 public abstract class NetUserMessageHandler<T> implements MessageHandler<T> {
 
     @Override
-    public final void exec(NetUser netUser, T msg) {
+    public final void exec(ImContext ctx, NetUser netUser, T msg) {
         MessageLite res = handle(netUser, msg);
         if (res != null) {
-            netUser.writeNow(res);
+            netUser.writeNow(ctx, res);
         }
     }
 
diff --git a/im-entry/src/main/java/net/sopod/soim/entry/server/session/NetUser.java b/im-entry/src/main/java/net/sopod/soim/entry/server/session/NetUser.java
index acb66ad..ed589cf 100644
--- a/im-entry/src/main/java/net/sopod/soim/entry/server/session/NetUser.java
+++ b/im-entry/src/main/java/net/sopod/soim/entry/server/session/NetUser.java
@@ -1,12 +1,20 @@
 package net.sopod.soim.entry.server.session;
 
+import com.google.protobuf.MessageLite;
 import io.netty.channel.Channel;
 import io.netty.util.AttributeKey;
+import net.sopod.soim.data.serialize.ImMessage;
+import net.sopod.soim.data.serialize.ImMessageCodec;
+import net.sopod.soim.entry.server.handler.ImContext;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.lang.ref.WeakReference;
 
 public class NetUser {
 
+    private static final Logger logger = LoggerFactory.getLogger(NetUser.class);
+
     /** channel 绑定 netUser 对象 */
     public static final AttributeKey<NetUser> NET_USER_KEY = AttributeKey.valueOf(NetUser.class, "NET_USER");
 
@@ -39,24 +47,24 @@ public class NetUser {
         }
     }
 
-    public void write(Object message) {
-        write(message, false);
+    public void writeNow(MessageLite message) {
+        write0(null, message);
     }
 
-    public void writeNow(Object message) {
-        write(message, true);
+    public void writeNow(ImContext ctx, MessageLite message) {
+        write0(ctx.getSerialNo(), message);
     }
 
-    private void write(Object message, boolean now) {
+    private void write0(Integer serialNo, MessageLite message) {
         Channel channel = this.channel.get();
         if (channel == null) {
+            logger.error("channel closed drop message: {}, {}", serialNo, message);
             return;
         }
-        if (now) {
-            channel.writeAndFlush(message);
-        } else {
-            channel.write(message);
-        }
+        // 构建 ImMessage
+        ImMessage imMessage = ImMessageCodec.encodeImProto(message);
+        imMessage.setSerialNo(serialNo == null ? -1 : serialNo);
+        channel.writeAndFlush(imMessage);
     }
 
     @Override
diff --git a/im-service-api/im-entry-protocol/src/main/java/net/sopod/soim/data/proto/ProtoMessageManager.java b/im-service-api/im-entry-protocol/src/main/java/net/sopod/soim/data/proto/ProtoMessageManager.java
index abf6f22..ed79427 100644
--- a/im-service-api/im-entry-protocol/src/main/java/net/sopod/soim/data/proto/ProtoMessageManager.java
+++ b/im-service-api/im-entry-protocol/src/main/java/net/sopod/soim/data/proto/ProtoMessageManager.java
@@ -60,7 +60,7 @@ public class ProtoMessageManager {
     }
 
     @Nullable
-    public static MessageLite getProtoInstance(Integer serialNo) {
+    public static MessageLite getDefaultInstance(Integer serialNo) {
         String clazz = serialNoTypeMap.get(serialNo);
         if (clazz == null) {
             logger.error("protoMsgDict serialNo proto class not found: {}", serialNo);
diff --git a/im-service-api/im-entry-protocol/src/main/java/net/sopod/soim/data/serialize/ImMessageCodec.java b/im-service-api/im-entry-protocol/src/main/java/net/sopod/soim/data/serialize/ImMessageCodec.java
index 10110f4..29de4ee 100644
--- a/im-service-api/im-entry-protocol/src/main/java/net/sopod/soim/data/serialize/ImMessageCodec.java
+++ b/im-service-api/im-entry-protocol/src/main/java/net/sopod/soim/data/serialize/ImMessageCodec.java
@@ -1,18 +1,17 @@
 package net.sopod.soim.data.serialize;
 
+import com.google.protobuf.InvalidProtocolBufferException;
 import com.google.protobuf.MessageLite;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.ChannelHandlerContext;
-import io.netty.channel.CombinedChannelDuplexHandler;
 import io.netty.handler.codec.ByteToMessageDecoder;
 import io.netty.handler.codec.MessageToByteEncoder;
-import io.netty.handler.codec.MessageToMessageEncoder;
+import net.sopod.soim.common.dubbo.exception.ConvertException;
+import net.sopod.soim.common.dubbo.exception.SoimException;
 import net.sopod.soim.data.proto.ProtoMessageManager;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.lang.reflect.Type;
-import java.util.Arrays;
 import java.util.List;
 
 /**
@@ -21,90 +20,57 @@ import java.util.List;
  * @author tmy
  * @date 2022-03-28 11:29
  */
-public class ImMessageCodec //extends MessageToMessageCodec<ByteBuf, MessageLite> {
-        extends CombinedChannelDuplexHandler<ImMessageCodec.ProtoMsgDecoder, ImMessageCodec.ProtoMsgEncoder> {
+public class ImMessageCodec {
 
     private static final Logger logger = LoggerFactory.getLogger(ImMessageCodec.class);
 
-    public ImMessageCodec() {
-         super(new ProtoMsgDecoder(), new ProtoMsgEncoder());
-    }
-
     public static class ImMessageDecoder extends ByteToMessageDecoder {
         @Override
         protected void decode(ChannelHandlerContext ctx, ByteBuf byteBuf, List<Object> out) throws Exception {
-            ImMessage message = ImMessage.read(byteBuf);
-            boolean isMagicError;
-            if ((isMagicError = (message == ImMessage.MAGIC_ERROR))
-                    || message == ImMessage.PROTOCOL_ERROR) {
-                logger.warn("decode im message error: {}, remote={}, closing channel.",
-                        isMagicError ? "MagicError" : "ProtocolError",
-                        ctx.channel().remoteAddress());
-                ctx.channel().close();
-                return;
-            }
-            // 解码 protobuf 消息体
-            int serviceNo = message.getServiceNo();
-            byte[] protoByte = message.getBody();
-            MessageLite protoClass = ProtoMessageManager.getProtoInstance(serviceNo);
-            MessageLite protoMsg = protoClass.getParserForType().parseFrom(protoByte);
-            message.setDecodeBody(protoMsg);
-            out.add(message);
+            ImMessage imMessage = ImMessageCodec.decodeImMessage(byteBuf);
+            out.add(imMessage);
         }
     }
 
-    public static class ProtoMsgDecoder extends ByteToMessageDecoder {
+    public static class ImMessage2ByteEncoder extends MessageToByteEncoder<ImMessage> {
         @Override
-        protected void decode(ChannelHandlerContext ctx, ByteBuf byteBuf, List<Object> list) throws Exception {
-            ImMessage message = ImMessage.read(byteBuf);
-            boolean isMagicError;
-            if ((isMagicError = (message == ImMessage.MAGIC_ERROR))
-                    || message == ImMessage.PROTOCOL_ERROR) {
-                logger.warn("decode im message error: {}, remote={}, closing channel.",
-                        isMagicError ? "MagicError" : "ProtocolError",
-                        ctx.channel().remoteAddress());
-                ctx.channel().close();
-                return;
-            }
-            // 解码 protobuf 消息体
-            int serviceNo = message.getServiceNo();
-            // message.getSerialNo()
-            byte[] protoByte = message.getBody();
-            MessageLite protoClass = ProtoMessageManager.getProtoInstance(serviceNo);
-            MessageLite protoMsg = protoClass.getParserForType().parseFrom(protoByte);
-            list.add(protoMsg);
+        protected void encode(ChannelHandlerContext ctx, ImMessage imMessage, ByteBuf byteBuf) throws Exception {
+            imMessage.write(byteBuf);
         }
     }
 
-    public static class ProtoMsg2ImMessageEncoder extends MessageToMessageEncoder<MessageLite> {
-        @Override
-        protected void encode(ChannelHandlerContext ctx, MessageLite message, List<Object> out) throws Exception {
-            Integer serialNo = ProtoMessageManager.getSerialNo(message.getClass());
-            // TODO unknow class serialNo
-            ImMessage imMessage = new ImMessage()
-                    .setServiceNo(serialNo)
-                    .setBody(message.toByteArray());
-            out.add(imMessage);
+    public static ImMessage decodeImMessage(ByteBuf byteBuf) {
+        ImMessage imMessage = ImMessage.read(byteBuf);
+        boolean isMagicError;
+        if ((isMagicError = (imMessage == ImMessage.MAGIC_ERROR))
+                || imMessage == ImMessage.PROTOCOL_ERROR) {
+            throw new ConvertException("ImMessage解码错误");
         }
-    }
-
-    public static class ImMessage2ByteEncoder extends MessageToByteEncoder<ImMessage> {
-        @Override
-        protected void encode(ChannelHandlerContext ctx, ImMessage imMessage, ByteBuf out) throws Exception {
-            imMessage.write(out);
+        // 解码 protobuf 消息体
+        int serviceNo = imMessage.getServiceNo();
+        byte[] protoByte = imMessage.getBody();
+        MessageLite protoClass = ProtoMessageManager.getDefaultInstance(serviceNo);
+        if (protoClass == null) {
+            throw new SoimException(String.format("不支持的消息编号: %d", serviceNo));
         }
+        MessageLite protoMsg;
+        try {
+            protoMsg = protoClass.getParserForType().parseFrom(protoByte);
+        } catch (InvalidProtocolBufferException e) {
+            throw new ConvertException("ImMessage消息体Protobuf解码错误: " + e.getMessage());
+        }
+        imMessage.setDecodeBody(protoMsg);
+        return imMessage;
     }
 
-    public static class ProtoMsgEncoder extends MessageToByteEncoder<MessageLite> {
-        @Override
-        protected void encode(ChannelHandlerContext ctx, MessageLite message, ByteBuf byteBuf) throws Exception {
-            Integer serialNo = ProtoMessageManager.getSerialNo(message.getClass());
-            // TODO unknow class serialNo
-            ImMessage imMessage = new ImMessage()
-                    .setServiceNo(serialNo)
-                    .setBody(message.toByteArray());
-            imMessage.write(byteBuf);
+    public static ImMessage encodeImProto(MessageLite message) {
+        Integer serialNo = ProtoMessageManager.getSerialNo(message.getClass());
+        if (serialNo == null) {
+            throw new SoimException("未知的Protobuf消息类型:" + message.getClass());
         }
+        return new ImMessage()
+                .setServiceNo(serialNo)
+                .setBody(message.toByteArray());
     }
 
 }
diff --git a/im-service/im-router/src/main/java/net/sopod/soim/router/service/UserRouteServiceImpl.java b/im-service/im-router/src/main/java/net/sopod/soim/router/service/UserRouteServiceImpl.java
index 55751ee..a776a9b 100644
--- a/im-service/im-router/src/main/java/net/sopod/soim/router/service/UserRouteServiceImpl.java
+++ b/im-service/im-router/src/main/java/net/sopod/soim/router/service/UserRouteServiceImpl.java
@@ -1,14 +1,12 @@
 package net.sopod.soim.router.service;
 
 import net.sopod.soim.common.constant.DubboConstant;
-import net.sopod.soim.common.dubbo.exception.ServiceException;
 import net.sopod.soim.common.util.ImClock;
 import net.sopod.soim.common.util.StringUtil;
 import net.sopod.soim.das.user.api.config.LogicTables;
 import net.sopod.soim.das.user.api.model.entity.ImMessage;
 import net.sopod.soim.das.user.api.model.entity.ImUser;
-import net.sopod.soim.das.user.api.mq.ChatQueue;
-import net.sopod.soim.das.user.api.mq.ChatQueueType;
+import net.sopod.soim.das.user.api.service.DasMQPersistentService;
 import net.sopod.soim.das.user.api.service.FriendDas;
 import net.sopod.soim.das.user.api.service.UserDas;
 import net.sopod.soim.entry.api.service.OnlineUserService;
@@ -27,7 +25,6 @@ import org.apache.dubbo.config.annotation.DubboService;
 import org.apache.dubbo.rpc.RpcContext;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.springframework.amqp.rabbit.core.RabbitTemplate;
 
 import javax.annotation.Resource;
 import java.util.ArrayList;
@@ -62,7 +59,7 @@ public class UserRouteServiceImpl implements UserRouteService {
     private SegmentIdGenerator segmentIdGenerator;
 
     @Resource
-    private RabbitTemplate rabbitTemplate;
+    private DasMQPersistentService dasMQPersistentService;
 
     @Override
     public RegistryRes registryUserEntry(Long uid, String imEntryAddr) {
@@ -107,7 +104,7 @@ public class UserRouteServiceImpl implements UserRouteService {
                 .setSender(textChat.getUid())
                 .setReceiver(textChat.getReceiverUid())
                 .setCreateTime(ImClock.date());
-        rabbitTemplate.convertAndSend(ChatQueueType.IM_MESSAGE.getQueueName(), imMessage);
+        dasMQPersistentService.saveImMessage(imMessage);
 
         RpcContextUtil.setContextUid(textChat.getReceiverUid());
         Boolean send = textChatService.sendTextChat(textChat);