feat:【IoT 物联网】优化 TCP 二进制协议的消息编码和解码逻辑

haohao
1 parent 00bd4293
Showing 4 changed files with 267 additions and 451 deletions
yudao-module-iot/yudao-module-iot-gateway/src/main/java/cn/iocoder/yudao/module/iot/gateway/codec/tcp/IotTcpBinaryDeviceMessageCodec.java
yudao-module-iot/yudao-module-iot-gateway/src/main/java/cn/iocoder/yudao/module/iot/gateway/protocol/tcp/manager/IotTcpConnectionManager.java
yudao-module-iot/yudao-module-iot-gateway/src/main/java/cn/iocoder/yudao/module/iot/gateway/protocol/tcp/router/IotTcpUpstreamHandler.java
yudao-module-iot/yudao-module-iot-gateway/src/test/resources/tcp-binary-packet-examples.md
@@ -4,10 +4,9 @@ import cn.hutool.core.lang.Assert;
 import cn.hutool.core.util.StrUtil;
 import cn.iocoder.yudao.framework.common.util.json.JsonUtils;
 import cn.iocoder.yudao.module.iot.core.mq.message.IotDeviceMessage;
+import cn.iocoder.yudao.module.iot.core.util.IotDeviceMessageUtils;
 import cn.iocoder.yudao.module.iot.gateway.codec.IotDeviceMessageCodec;
 import io.vertx.core.buffer.Buffer;
-import lombok.AllArgsConstructor;
-import lombok.Data;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Component;
@@ -19,9 +18,9 @@ import java.nio.charset.StandardCharsets;
  * 二进制协议格式（所有数值使用大端序）：
  *
  * <pre>
- * +--------+--------+--------+--------+--------+--------+--------+--------+
- * | 魔术字 | 版本号 | 消息类型| 消息标志|         消息长度(4 字节)          |
- * +--------+--------+--------+--------+--------+--------+--------+--------+
+ * +--------+--------+--------+---------------------------+--------+--------+
+ * | 魔术字 | 版本号 | 消息类型|         消息长度(4 字节)          |
+ * +--------+--------+--------+---------------------------+--------+--------+
  * |           消息 ID 长度(2 字节)        |      消息 ID (变长字符串)         |
  * +--------+--------+--------+--------+--------+--------+--------+--------+
  * |           方法名长度(2 字节)        |      方法名(变长字符串)         |
@@ -44,8 +43,6 @@ public class IotTcpBinaryDeviceMessageCodec implements IotDeviceMessageCodec {
     public static final String TYPE = "TCP_BINARY";
-    // ==================== 协议常量 ====================
-
     /**
      * 协议魔术字，用于协议识别
      */
@@ -56,27 +53,20 @@ public class IotTcpBinaryDeviceMessageCodec implements IotDeviceMessageCodec {
      */
     private static final byte PROTOCOL_VERSION = (byte) 0x01;
-    // TODO @haohao：这个要不直接静态枚举，不用 MessageType
     /**
-     * 消息类型常量
+     * 请求消息类型
      */
-    public static class MessageType {
+    private static final byte REQUEST = (byte) 0x01;
-        /**
-         * 请求消息
-         */
-        public static final byte REQUEST = 0x01;
-        /**
-         * 响应消息
-         */
-        public static final byte RESPONSE = 0x02;
-
-    }
+    /**
+     * 响应消息类型
+     */
+    private static final byte RESPONSE = (byte) 0x02;
     /**
-     * 协议头部固定长度（魔术字 + 版本号 + 消息类型 + 消息标志 + 消息长度）
+     * 协议头部固定长度（魔术字 + 版本号 + 消息类型 + 消息长度）
      */
-    private static final int HEADER_FIXED_LENGTH = 8;
+    private static final int HEADER_FIXED_LENGTH = 7;
     /**
      * 最小消息长度（头部 + 消息ID长度 + 方法名长度）
@@ -97,7 +87,7 @@ public class IotTcpBinaryDeviceMessageCodec implements IotDeviceMessageCodec {
             byte messageType = determineMessageType(message);
             // 2. 构建消息体
             byte[] bodyData = buildMessageBody(message, messageType);
-            // 3. 构建完整消息（不包含deviceId，由连接上下文管理）
+            // 3. 构建完整消息
             return buildCompleteMessage(message, messageType, bodyData);
         } catch (Exception e) {
             log.error("[encode][TCP 二进制消息编码失败，消息: {}]", message, e);
@@ -111,30 +101,59 @@ public class IotTcpBinaryDeviceMessageCodec implements IotDeviceMessageCodec {
         Assert.isTrue(bytes.length >= MIN_MESSAGE_LENGTH, "数据包长度不足");
         try {
             Buffer buffer = Buffer.buffer(bytes);
-            // 1. 解析协议头部
-            ProtocolHeader header = parseProtocolHeader(buffer);
-            // 2. 解析消息内容（不包含deviceId，由上层连接管理器设置）
-            return parseMessageContent(buffer, header);
+            // 解析协议头部和消息内容
+            int index = 0;
+            // 1. 验证魔术字
+            byte magic = buffer.getByte(index++);
+            Assert.isTrue(magic == MAGIC_NUMBER, "无效的协议魔术字: " + magic);
+
+            // 2. 验证版本号
+            byte version = buffer.getByte(index++);
+            Assert.isTrue(version == PROTOCOL_VERSION, "不支持的协议版本: " + version);
+
+            // 3. 读取消息类型
+            byte messageType = buffer.getByte(index++);
+            // 直接验证消息类型，无需抽取方法
+            Assert.isTrue(messageType == REQUEST || messageType == RESPONSE,
+                    "无效的消息类型: " + messageType);
+
+            // 4. 读取消息长度
+            int messageLength = buffer.getInt(index);
+            index += 4;
+            Assert.isTrue(messageLength == buffer.length(),
+                    "消息长度不匹配，期望: " + messageLength + ", 实际: " + buffer.length());
+
+            // 5. 读取消息 ID
+            short messageIdLength = buffer.getShort(index);
+            index += 2;
+            String messageId = buffer.getString(index, index + messageIdLength, StandardCharsets.UTF_8.name());
+            index += messageIdLength;
+
+            // 6. 读取方法名
+            short methodLength = buffer.getShort(index);
+            index += 2;
+            String method = buffer.getString(index, index + methodLength, StandardCharsets.UTF_8.name());
+            index += methodLength;
+
+            // 7. 解析消息体
+            return parseMessageBody(buffer, index, messageType, messageId, method);
         } catch (Exception e) {
             log.error("[decode][TCP 二进制消息解码失败，数据长度: {}]", bytes.length, e);
             throw new RuntimeException("TCP 二进制消息解码失败: " + e.getMessage(), e);
         }
     }
-    // ==================== 编码相关方法 ====================
-
     /**
      * 确定消息类型
      * 优化后的判断逻辑：有响应字段就是响应消息，否则就是请求消息
      */
     private byte determineMessageType(IotDeviceMessage message) {
         // 判断是否为响应消息：有响应码或响应消息时为响应
-        // TODO @haohao：感觉只判断 code 更稳妥点？msg 有可能空。。。
-        if (message.getCode() != null || StrUtil.isNotBlank(message.getMsg())) {
-            return MessageType.RESPONSE;
+        if (message.getCode() != null) {
+            return RESPONSE;
         }
         // 默认为请求消息
-        return MessageType.REQUEST;
+        return REQUEST;
     }
     /**
@@ -142,12 +161,12 @@ public class IotTcpBinaryDeviceMessageCodec implements IotDeviceMessageCodec {
      */
     private byte[] buildMessageBody(IotDeviceMessage message, byte messageType) {
         Buffer bodyBuffer = Buffer.buffer();
-        if (messageType == MessageType.RESPONSE) {
+        if (messageType == RESPONSE) {
             // code
             bodyBuffer.appendInt(message.getCode() != null ? message.getCode() : 0);
             // msg
             String msg = message.getMsg() != null ? message.getMsg() : "";
-            byte[] msgBytes = msg.getBytes(StandardCharsets.UTF_8);
+            byte[] msgBytes = StrUtil.utf8Bytes(msg);
             bodyBuffer.appendShort((short) msgBytes.length);
             bodyBuffer.appendBytes(msgBytes);
             // data
@@ -155,11 +174,9 @@ public class IotTcpBinaryDeviceMessageCodec implements IotDeviceMessageCodec {
                 bodyBuffer.appendBytes(JsonUtils.toJsonByte(message.getData()));
             }
         } else {
-            // params
-            // TODO @haohao：请求是不是只处理 message.getParams() 哈？
-            Object payload = message.getParams() != null ? message.getParams() : message.getData();
-            if (payload != null) {
-                bodyBuffer.appendBytes(JsonUtils.toJsonByte(payload));
+            // 请求消息只处理 params 参数
+            if (message.getParams() != null) {
+                bodyBuffer.appendBytes(JsonUtils.toJsonByte(message.getParams()));
             }
         }
         return bodyBuffer.getBytes();
@@ -174,20 +191,17 @@ public class IotTcpBinaryDeviceMessageCodec implements IotDeviceMessageCodec {
         buffer.appendByte(MAGIC_NUMBER);
         buffer.appendByte(PROTOCOL_VERSION);
         buffer.appendByte(messageType);
-        buffer.appendByte((byte) 0x00); // 消息标志，预留字段 TODO @haohao：这个标识的作用是啥呀？
-        // 2. 预留消息长度位置（在 6. 更新消息长度）
+        // 2. 预留消息长度位置（在 5. 更新消息长度）
         int lengthPosition = buffer.length();
         buffer.appendInt(0);
         // 3. 写入消息 ID
         String messageId = StrUtil.isNotBlank(message.getRequestId()) ? message.getRequestId()
-                // TODO @haohao：复用 IotDeviceMessageUtils 的 generateMessageId 哇？
-                : generateMessageId(message.getMethod());
-        // TODO @haohao：StrUtil.utf8Bytes()
-        byte[] messageIdBytes = messageId.getBytes(StandardCharsets.UTF_8);
+                : IotDeviceMessageUtils.generateMessageId();
+        byte[] messageIdBytes = StrUtil.utf8Bytes(messageId);
         buffer.appendShort((short) messageIdBytes.length);
         buffer.appendBytes(messageIdBytes);
         // 4. 写入方法名
-        byte[] methodBytes = message.getMethod().getBytes(StandardCharsets.UTF_8);
+        byte[] methodBytes = StrUtil.utf8Bytes(message.getMethod());
         buffer.appendShort((short) methodBytes.length);
         buffer.appendBytes(methodBytes);
         // 5. 写入消息体
@@ -198,66 +212,6 @@ public class IotTcpBinaryDeviceMessageCodec implements IotDeviceMessageCodec {
     }
     /**
-     * 生成消息 ID
-     */
-    private String generateMessageId(String method) {
-        return method + "_" + System.currentTimeMillis() + "_" + (int) (Math.random() * 1000);
-    }
-
-    // ==================== 解码相关方法 ====================
-
-    // TODO @haohao：是不是把 parseProtocolHeader、parseMessageContent 合并？
-    /**
-     * 解析协议头部
-     */
-    private ProtocolHeader parseProtocolHeader(Buffer buffer) {
-        int index = 0;
-        // 1. 验证魔术字
-        byte magic = buffer.getByte(index++);
-        Assert.isTrue(magic == MAGIC_NUMBER, "无效的协议魔术字: " + magic);
-        // 2. 验证版本号
-        byte version = buffer.getByte(index++);
-        Assert.isTrue(version == PROTOCOL_VERSION, "不支持的协议版本: " + version);
-
-        // 3. 读取消息类型
-        byte messageType = buffer.getByte(index++);
-        Assert.isTrue(isValidMessageType(messageType), "无效的消息类型: " + messageType);
-        // 4. 读取消息标志（暂时跳过）
-        byte messageFlags = buffer.getByte(index++);
-
-        // 5. 读取消息长度
-        int messageLength = buffer.getInt(index);
-        index += 4;
-
-        Assert.isTrue(messageLength == buffer.length(),
-                "消息长度不匹配，期望: " + messageLength + ", 实际: " + buffer.length());
-
-        return new ProtocolHeader(magic, version, messageType, messageFlags, messageLength, index);
-    }
-
-    /**
-     * 解析消息内容
-     */
-    private IotDeviceMessage parseMessageContent(Buffer buffer, ProtocolHeader header) {
-        int index = header.getNextIndex();
-
-        // 1. 读取消息 ID
-        short messageIdLength = buffer.getShort(index);
-        index += 2;
-        String messageId = buffer.getString(index, index + messageIdLength, StandardCharsets.UTF_8.name());
-        index += messageIdLength;
-
-        // 2. 读取方法名
-        short methodLength = buffer.getShort(index);
-        index += 2;
-        String method = buffer.getString(index, index + methodLength, StandardCharsets.UTF_8.name());
-        index += methodLength;
-
-        // 3. 解析消息体
-        return parseMessageBody(buffer, index, header.getMessageType(), messageId, method);
-    }
-
-    /**
      * 解析消息体
      */
     private IotDeviceMessage parseMessageBody(Buffer buffer, int startIndex, byte messageType,
@@ -267,11 +221,11 @@ public class IotTcpBinaryDeviceMessageCodec implements IotDeviceMessageCodec {
             return IotDeviceMessage.of(messageId, method, null, null, null, null);
         }
-        if (messageType == MessageType.RESPONSE) {
+        if (messageType == RESPONSE) {
             // 响应消息：解析 code + msg + data
             return parseResponseMessage(buffer, startIndex, messageId, method);
         } else {
-            // 请求消息：解析 payload（可能是 params 或 data）
+            // 请求消息：解析 payload
             Object payload = parseJsonData(buffer, startIndex, buffer.length());
             return IotDeviceMessage.of(messageId, method, payload, null, null, null);
         }
@@ -303,7 +257,7 @@ public class IotTcpBinaryDeviceMessageCodec implements IotDeviceMessageCodec {
     }
     /**
-     * 解析JSON数据
+     * 解析 JSON 数据
      */
     private Object parseJsonData(Buffer buffer, int startIndex, int endIndex) {
         if (startIndex >= endIndex) {
@@ -318,34 +272,14 @@ public class IotTcpBinaryDeviceMessageCodec implements IotDeviceMessageCodec {
         }
     }
-    // ==================== 辅助方法 ====================
-
-    // TODO @haohao：这个貌似只用一次，可以考虑不抽小方法哈；
     /**
-     * 验证消息类型是否有效
+     * 快速检测是否为二进制格式
+     *
+     * @param data 数据
+     * @return 是否为二进制格式
      */
-    private boolean isValidMessageType(byte messageType) {
-        return messageType == MessageType.REQUEST || messageType == MessageType.RESPONSE;
+    public static boolean isBinaryFormatQuick(byte[] data) {
+        return data != null && data.length >= 1 && data[0] == MAGIC_NUMBER;
     }
-    // ==================== 内部类 ====================
-
-    /**
-     * 协议头部信息
-     */
-    @Data
-    @AllArgsConstructor
-    private static class ProtocolHeader {
-
-        private byte magic;
-        private byte version;
-        private byte messageType;
-        private byte messageFlags;
-        private int messageLength;
-        /**
-         * 指向消息内容开始位置
-         */
-        private int nextIndex;
-
-    }
 }
 \ No newline at end of file
@@ -28,46 +28,33 @@ public class IotTcpConnectionManager {
     private final Map<NetSocket, ConnectionInfo> connectionMap = new ConcurrentHashMap<>();
     /**
-     * 设备 ID -> NetSocket 的映射（用于快速查找）
+     * 设备 ID -> NetSocket 的映射
      */
     private final Map<Long, NetSocket> deviceSocketMap = new ConcurrentHashMap<>();
     /**
-     * NetSocket -> 设备 ID 的映射（用于连接断开时清理）
-     */
-    private final Map<NetSocket, Long> socketDeviceMap = new ConcurrentHashMap<>();
-
-    /**
      * 注册设备连接（包含认证信息）
      *
-     * @param socket   TCP 连接
-     * @param deviceId 设备 ID
-     * @param authInfo 认证信息
+     * @param socket         TCP 连接
+     * @param deviceId       设备 ID
+     * @param connectionInfo 连接信息
      */
-    public void registerConnection(NetSocket socket, Long deviceId, AuthInfo authInfo) {
+    public void registerConnection(NetSocket socket, Long deviceId, ConnectionInfo connectionInfo) {
         // 如果设备已有其他连接，先清理旧连接
         NetSocket oldSocket = deviceSocketMap.get(deviceId);
         if (oldSocket != null && oldSocket != socket) {
             log.info("[registerConnection][设备已有其他连接，断开旧连接，设备 ID: {}，旧连接: {}]",
                     deviceId, oldSocket.remoteAddress());
             oldSocket.close();
-            // 清理所有相关映射
+            // 清理旧连接的映射
             connectionMap.remove(oldSocket);
-            socketDeviceMap.remove(oldSocket);
         }
-        // 注册新连接 - 更新所有映射关系
-        ConnectionInfo connectionInfo = new ConnectionInfo()
-                .setDeviceId(deviceId)
-                .setAuthInfo(authInfo)
-                .setAuthenticated(true);
         connectionMap.put(socket, connectionInfo);
         deviceSocketMap.put(deviceId, socket);
-        // TODO @haohao：socketDeviceMap 和 connectionMap 会重复哇？connectionMap.get(socket).getDeviceId
-        socketDeviceMap.put(socket, deviceId);
         log.info("[registerConnection][注册设备连接，设备 ID: {}，连接: {}，product key: {}，device name: {}]",
-                deviceId, socket.remoteAddress(), authInfo.getProductKey(), authInfo.getDeviceName());
+                deviceId, socket.remoteAddress(), connectionInfo.getProductKey(), connectionInfo.getDeviceName());
     }
     /**
@@ -77,29 +64,14 @@ public class IotTcpConnectionManager {
      */
     public void unregisterConnection(NetSocket socket) {
         ConnectionInfo connectionInfo = connectionMap.remove(socket);
-        Long deviceId = socketDeviceMap.remove(socket);
-        if (connectionInfo != null && deviceId != null) {
+        if (connectionInfo != null) {
+            Long deviceId = connectionInfo.getDeviceId();
             deviceSocketMap.remove(deviceId);
             log.info("[unregisterConnection][注销设备连接，设备 ID: {}，连接: {}]",
                     deviceId, socket.remoteAddress());
         }
     }
-    // TODO @haohao：用不到，要不暂时清理哈。
-    /**
-     * 注销设备连接（通过设备 ID）
-     *
-     * @param deviceId 设备 ID
-     */
-    public void unregisterConnection(Long deviceId) {
-        NetSocket socket = deviceSocketMap.remove(deviceId);
-        if (socket != null) {
-            connectionMap.remove(socket);
-            socketDeviceMap.remove(socket);
-            log.info("[unregisterConnection][注销设备连接，设备 ID: {}，连接: {}]", deviceId, socket.remoteAddress());
-        }
-    }
-
     /**
      * 检查连接是否已认证
      */
@@ -116,11 +88,10 @@ public class IotTcpConnectionManager {
     }
     /**
-     * 获取连接的认证信息
+     * 获取连接信息
      */
-    public AuthInfo getAuthInfo(NetSocket socket) {
-        ConnectionInfo info = connectionMap.get(socket);
-        return info != null ? info.getAuthInfo() : null;
+    public ConnectionInfo getConnectionInfo(NetSocket socket) {
+        return connectionMap.get(socket);
     }
     /**
@@ -159,30 +130,34 @@ public class IotTcpConnectionManager {
         }
     }
-    // TODO @haohao：ConnectionInfo 和 AuthInfo 是不是可以融合哈？
-
     /**
-     * 连接信息
+     * 连接信息（包含认证信息）
      */
     @Data
     public static class ConnectionInfo {
-
-        private Long deviceId;
-        private AuthInfo authInfo;
-        private boolean authenticated;
-
-    }
-
-    /**
-     * 认证信息
-     */
-    @Data
-    public static class AuthInfo {
-
+        /**
+         * 设备 ID
+         */
         private Long deviceId;
+        /**
+         * 产品 Key
+         */
         private String productKey;
+        /**
+         * 设备名称
+         */
         private String deviceName;
+        /**
+         * 客户端 ID
+         */
         private String clientId;
-
+        /**
+         * 消息编解码类型（认证后确定）
+         */
+        private String codecType;
+        /**
+         * 是否已认证
+         */
+        private boolean authenticated;
     }
 }
 \ No newline at end of file
 package cn.iocoder.yudao.module.iot.gateway.protocol.tcp.router;
 import cn.hutool.core.map.MapUtil;
+import cn.hutool.core.util.BooleanUtil;
 import cn.hutool.core.util.IdUtil;
 import cn.hutool.core.util.StrUtil;
 import cn.hutool.extra.spring.SpringUtil;
-import cn.hutool.json.JSONObject;
-import cn.hutool.json.JSONUtil;
 import cn.iocoder.yudao.framework.common.pojo.CommonResult;
+import cn.iocoder.yudao.framework.common.util.json.JsonUtils;
 import cn.iocoder.yudao.module.iot.core.biz.IotDeviceCommonApi;
 import cn.iocoder.yudao.module.iot.core.biz.dto.IotDeviceAuthReqDTO;
 import cn.iocoder.yudao.module.iot.core.biz.dto.IotDeviceRespDTO;
@@ -21,12 +21,8 @@ import cn.iocoder.yudao.module.iot.gateway.service.device.message.IotDeviceMessa
 import io.vertx.core.Handler;
 import io.vertx.core.buffer.Buffer;
 import io.vertx.core.net.NetSocket;
-import lombok.AllArgsConstructor;
-import lombok.Data;
 import lombok.extern.slf4j.Slf4j;
-import java.nio.charset.StandardCharsets;
-
 /**
  * TCP 上行消息处理器
  *
@@ -77,31 +73,55 @@ public class IotTcpUpstreamHandler implements Handler&lt;NetSocket&gt; {
         });
         // 设置消息处理器
-        socket.handler(buffer -> processMessage(clientId, buffer, socket));
+        socket.handler(buffer -> {
+            try {
+                processMessage(clientId, buffer, socket);
+            } catch (Exception e) {
+                log.error("[handle][消息解码失败，断开连接，客户端 ID: {}，地址: {}，错误: {}]",
+                        clientId, socket.remoteAddress(), e.getMessage());
+                cleanupConnection(socket);
+                socket.close();
+            }
+        });
     }
     /**
      * 处理消息
+     *
+     * @param clientId 客户端 ID
+     * @param buffer   消息
+     * @param socket   网络连接
+     * @throws Exception 消息解码失败时抛出异常
      */
-    private void processMessage(String clientId, Buffer buffer, NetSocket socket) {
+    private void processMessage(String clientId, Buffer buffer, NetSocket socket) throws Exception {
+        // 1. 基础检查
+        if (buffer == null || buffer.length() == 0) {
+            return;
+        }
+
+        // 2. 获取消息格式类型
+        String codecType = getMessageCodecType(buffer, socket);
+
+        // 3. 解码消息
+        IotDeviceMessage message;
         try {
-            // 1.1 数据包基础检查
-            if (buffer.length() == 0) {
-                return;
-            }
-            // 1.2 解码消息
-            MessageInfo messageInfo = decodeMessage(buffer);
-            if (messageInfo == null) {
-                return;
+            message = deviceMessageService.decodeDeviceMessage(buffer.getBytes(), codecType);
+            if (message == null) {
+                throw new Exception("解码后消息为空");
             }
+        } catch (Exception e) {
+            // 消息格式错误时抛出异常，由上层处理连接断开
+            throw new Exception("消息解码失败: " + e.getMessage(), e);
+        }
-            // 2. 根据消息类型路由处理
-            if (isAuthRequest(messageInfo.message)) {
+        // 4. 根据消息类型路由处理
+        try {
+            if (AUTH_METHOD.equals(message.getMethod())) {
                 // 认证请求
-                handleAuthenticationRequest(clientId, messageInfo, socket);
+                handleAuthenticationRequest(clientId, message, codecType, socket);
             } else {
                 // 业务消息
-                handleBusinessRequest(clientId, messageInfo, socket);
+                handleBusinessRequest(clientId, message, codecType, socket);
             }
         } catch (Exception e) {
             log.error("[processMessage][处理消息失败，客户端 ID: {}]", clientId, e);
@@ -110,226 +130,158 @@ public class IotTcpUpstreamHandler implements Handler&lt;NetSocket&gt; {
     /**
      * 处理认证请求
+     *
+     * @param clientId  客户端 ID
+     * @param message   消息信息
+     * @param codecType 消息编解码类型
+     * @param socket    网络连接
      */
-    private void handleAuthenticationRequest(String clientId, MessageInfo messageInfo, NetSocket socket) {
+    private void handleAuthenticationRequest(String clientId, IotDeviceMessage message, String codecType,
+                                             NetSocket socket) {
         try {
             // 1.1 解析认证参数
-            IotDeviceMessage message = messageInfo.message;
-            AuthParams authParams = parseAuthParams(message.getParams());
+            IotDeviceAuthReqDTO authParams = JsonUtils.parseObject(message.getParams().toString(),
+                    IotDeviceAuthReqDTO.class);
             if (authParams == null) {
-                sendError(socket, message.getRequestId(), "认证参数不完整", messageInfo.codecType);
+                sendErrorResponse(socket, message.getRequestId(), "认证参数不完整", codecType);
                 return;
             }
             // 1.2 执行认证
-            if (!authenticateDevice(authParams)) {
+            if (!validateDeviceAuth(authParams)) {
                 log.warn("[handleAuthenticationRequest][认证失败，客户端 ID: {}，username: {}]",
-                        clientId, authParams.username);
-                sendError(socket, message.getRequestId(), "认证失败", messageInfo.codecType);
+                        clientId, authParams.getUsername());
+                sendErrorResponse(socket, message.getRequestId(), "认证失败", codecType);
                 return;
             }
             // 2.1 解析设备信息
-            IotDeviceAuthUtils.DeviceInfo deviceInfo = IotDeviceAuthUtils.parseUsername(authParams.username);
+            IotDeviceAuthUtils.DeviceInfo deviceInfo = IotDeviceAuthUtils.parseUsername(authParams.getUsername());
             if (deviceInfo == null) {
-                sendError(socket, message.getRequestId(), "解析设备信息失败", messageInfo.codecType);
+                sendErrorResponse(socket, message.getRequestId(), "解析设备信息失败", codecType);
                 return;
             }
             // 2.2 获取设备信息
             IotDeviceRespDTO device = deviceService.getDeviceFromCache(deviceInfo.getProductKey(),
                     deviceInfo.getDeviceName());
             if (device == null) {
-                sendError(socket, message.getRequestId(), "设备不存在", messageInfo.codecType);
+                sendErrorResponse(socket, message.getRequestId(), "设备不存在", codecType);
                 return;
             }
-            // 3. 注册连接并发送成功响应
-            registerConnection(socket, device, deviceInfo, authParams.clientId);
-            sendOnlineMessage(deviceInfo);
-            sendSuccess(socket, message.getRequestId(), "认证成功", messageInfo.codecType);
+            // 3.1 注册连接
+            registerConnection(socket, device, clientId, codecType);
+            // 3.2 发送上线消息
+            sendOnlineMessage(device);
+            // 3.3 发送成功响应
+            sendSuccessResponse(socket, message.getRequestId(), "认证成功", codecType);
             log.info("[handleAuthenticationRequest][认证成功，设备 ID: {}，设备名: {}]",
-                    device.getId(), deviceInfo.getDeviceName());
+                    device.getId(), device.getDeviceName());
         } catch (Exception e) {
             log.error("[handleAuthenticationRequest][认证处理异常，客户端 ID: {}]", clientId, e);
-            sendError(socket, messageInfo.message.getRequestId(), "认证处理异常", messageInfo.codecType);
+            sendErrorResponse(socket, message.getRequestId(), "认证处理异常", codecType);
         }
     }
     /**
      * 处理业务请求
+     *
+     * @param clientId  客户端 ID
+     * @param message   消息信息
+     * @param codecType 消息编解码类型
+     * @param socket    网络连接
      */
-    private void handleBusinessRequest(String clientId, MessageInfo messageInfo, NetSocket socket) {
+    private void handleBusinessRequest(String clientId, IotDeviceMessage message, String codecType, NetSocket socket) {
         try {
             // 1. 检查认证状态
             if (connectionManager.isNotAuthenticated(socket)) {
                 log.warn("[handleBusinessRequest][设备未认证，客户端 ID: {}]", clientId);
-                sendError(socket, messageInfo.message.getRequestId(), "请先进行认证", messageInfo.codecType);
+                sendErrorResponse(socket, message.getRequestId(), "请先进行认证", codecType);
                 return;
             }
             // 2. 获取认证信息并处理业务消息
-            IotTcpConnectionManager.AuthInfo authInfo = connectionManager.getAuthInfo(socket);
-            processBusinessMessage(clientId, messageInfo.message, authInfo);
-        } catch (Exception e) {
-            log.error("[handleBusinessRequest][业务请求处理异常，客户端 ID: {}]", clientId, e);
-        }
-    }
+            IotTcpConnectionManager.ConnectionInfo connectionInfo = connectionManager.getConnectionInfo(socket);
-    // TODO @haohao：processBusinessMessage 这个小方法，直接融合到 handleBusinessRequest 里？读起来更聚集点
-    /**
-     * 处理业务消息
-     */
-    private void processBusinessMessage(String clientId, IotDeviceMessage message,
-                                        IotTcpConnectionManager.AuthInfo authInfo) {
-        try {
-            message.setDeviceId(authInfo.getDeviceId());
-            message.setServerId(serverId);
-            // 发送到消息总线
-            deviceMessageService.sendDeviceMessage(message, authInfo.getProductKey(),
-                    authInfo.getDeviceName(), serverId);
+            // 3. 发送消息到消息总线
+            deviceMessageService.sendDeviceMessage(message, connectionInfo.getProductKey(),
+                    connectionInfo.getDeviceName(), serverId);
         } catch (Exception e) {
-            log.error("[processBusinessMessage][业务消息处理失败，客户端 ID: {}，消息 ID: {}]",
-                    clientId, message.getId(), e);
+            log.error("[handleBusinessRequest][业务请求处理异常，客户端 ID: {}]", clientId, e);
         }
     }
     /**
-     * 解码消息
+     * 获取消息编解码类型
      *
      * @param buffer 消息
+     * @param socket 网络连接
+     * @return 消息编解码类型
      */
-    private MessageInfo decodeMessage(Buffer buffer) {
-        if (buffer == null || buffer.length() == 0) {
-            return null;
-        }
-        // 1. 快速检测消息格式类型
-        // TODO @haohao：是不是进一步优化？socket 建立认证后，那条消息已经定义了所有消息的格式哈？
-        String codecType = detectMessageFormat(buffer);
-        try {
-            // 2. 使用检测到的格式进行解码
-            IotDeviceMessage message = deviceMessageService.decodeDeviceMessage(buffer.getBytes(), codecType);
-            if (message == null) {
-                return null;
-            }
-            return new MessageInfo(message, codecType);
-        } catch (Exception e) {
-            log.warn("[decodeMessage][消息解码失败，格式: {}，数据长度: {}，错误: {}]",
-                    codecType, buffer.length(), e.getMessage());
-            // TODO @haohao：一般消息格式不对，应该抛出异常，断开连接居多？
-            return null;
-        }
-    }
-
-    /**
-     * 检测消息格式类型
-     * 优化性能：避免不必要的字符串转换
-     */
-    private String detectMessageFormat(Buffer buffer) {
-        // TODO @haohao：是不是 IotTcpBinaryDeviceMessageCodec 提供一个 isBinaryFormat 方法哈？
-        // 默认使用 JSON
-        if (buffer.length() == 0) {
-            return CODEC_TYPE_JSON;
-        }
-
-        // 1. 优先检测二进制格式（检查魔术字节 0x7E）
-        if (isBinaryFormat(buffer)) {
-            return CODEC_TYPE_BINARY;
-        }
-
-        // 2. 检测 JSON 格式（检查前几个有效字符）
-        // TODO @haohao：这个检测去掉？直接 return CODEC_TYPE_JSON 更简洁一点。
-        if (isJsonFormat(buffer)) {
-            return CODEC_TYPE_JSON;
+    private String getMessageCodecType(Buffer buffer, NetSocket socket) {
+        // 1. 如果已认证，优先使用缓存的编解码类型
+        IotTcpConnectionManager.ConnectionInfo connectionInfo = connectionManager.getConnectionInfo(socket);
+        if (connectionInfo != null && connectionInfo.isAuthenticated() &&
+                StrUtil.isNotBlank(connectionInfo.getCodecType())) {
+            return connectionInfo.getCodecType();
         }
-        // 3. 默认尝试 JSON 格式
-        return CODEC_TYPE_JSON;
-    }
-
-    /**
-     * 检测二进制格式
-     * 通过检查魔术字节快速识别，避免完整字符串转换
-     */
-    private boolean isBinaryFormat(Buffer buffer) {
-        // 二进制协议最小长度检查
-        if (buffer.length() < 8) {
-            return false;
-        }
-
-        try {
-            // 检查魔术字节 0x7E（二进制协议的第一个字节）
-            byte firstByte = buffer.getByte(0);
-            return firstByte == (byte) 0x7E;
-        } catch (Exception e) {
-            return false;
-        }
-    }
-
-    /**
-     * 检测 JSON 格式
-     * 只检查前几个有效字符，避免完整字符串转换
-     */
-    private boolean isJsonFormat(Buffer buffer) {
-        try {
-            // 检查前 64 个字节或整个缓冲区（取较小值）
-            int checkLength = Math.min(buffer.length(), 64);
-            String prefix = buffer.getString(0, checkLength, StandardCharsets.UTF_8.name());
-
-            if (StrUtil.isBlank(prefix)) {
-                return false;
-            }
-
-            String trimmed = prefix.trim();
-            // JSON 格式必须以 { 或 [ 开头
-            return trimmed.startsWith("{") || trimmed.startsWith("[");
-
-        } catch (Exception e) {
-            return false;
-        }
+        // 2. 未认证时检测消息格式类型
+        return IotTcpBinaryDeviceMessageCodec.isBinaryFormatQuick(buffer.getBytes()) ? CODEC_TYPE_BINARY
+                : CODEC_TYPE_JSON;
     }
     /**
      * 注册连接信息
+     *
+     * @param socket    网络连接
+     * @param device    设备
+     * @param clientId  客户端 ID
+     * @param codecType 消息编解码类型
      */
     private void registerConnection(NetSocket socket, IotDeviceRespDTO device,
-                                    IotDeviceAuthUtils.DeviceInfo deviceInfo, String clientId) {
-        // TODO @haohao：AuthInfo 的创建，放在 connectionManager 里构建貌似会更收敛一点？
-        // 创建认证信息
-        IotTcpConnectionManager.AuthInfo authInfo = new IotTcpConnectionManager.AuthInfo()
+                                    String clientId, String codecType) {
+        IotTcpConnectionManager.ConnectionInfo connectionInfo = new IotTcpConnectionManager.ConnectionInfo()
                 .setDeviceId(device.getId())
-                .setProductKey(deviceInfo.getProductKey())
-                .setDeviceName(deviceInfo.getDeviceName())
-                .setClientId(clientId);
+                .setProductKey(device.getProductKey())
+                .setDeviceName(device.getDeviceName())
+                .setClientId(clientId)
+                .setCodecType(codecType)
+                .setAuthenticated(true);
         // 注册连接
-        connectionManager.registerConnection(socket, device.getId(), authInfo);
+        connectionManager.registerConnection(socket, device.getId(), connectionInfo);
     }
     /**
      * 发送设备上线消息
+     *
+     * @param device 设备信息
      */
-    private void sendOnlineMessage(IotDeviceAuthUtils.DeviceInfo deviceInfo) {
+    private void sendOnlineMessage(IotDeviceRespDTO device) {
         try {
             IotDeviceMessage onlineMessage = IotDeviceMessage.buildStateUpdateOnline();
-            deviceMessageService.sendDeviceMessage(onlineMessage, deviceInfo.getProductKey(),
-                    deviceInfo.getDeviceName(), serverId);
+            deviceMessageService.sendDeviceMessage(onlineMessage, device.getProductKey(),
+                    device.getDeviceName(), serverId);
         } catch (Exception e) {
-            log.error("[sendOnlineMessage][发送上线消息失败，设备: {}]", deviceInfo.getDeviceName(), e);
+            log.error("[sendOnlineMessage][发送上线消息失败，设备: {}]", device.getDeviceName(), e);
         }
     }
     /**
      * 清理连接
+     *
+     * @param socket 网络连接
      */
     private void cleanupConnection(NetSocket socket) {
         try {
-            // 发送离线消息（如果已认证）
-            IotTcpConnectionManager.AuthInfo authInfo = connectionManager.getAuthInfo(socket);
-            if (authInfo != null) {
+            // 1. 发送离线消息（如果已认证）
+            IotTcpConnectionManager.ConnectionInfo connectionInfo = connectionManager.getConnectionInfo(socket);
+            if (connectionInfo != null) {
                 IotDeviceMessage offlineMessage = IotDeviceMessage.buildStateOffline();
-                deviceMessageService.sendDeviceMessage(offlineMessage, authInfo.getProductKey(),
-                        authInfo.getDeviceName(), serverId);
+                deviceMessageService.sendDeviceMessage(offlineMessage, connectionInfo.getProductKey(),
+                        connectionInfo.getDeviceName(), serverId);
             }
-            // 注销连接
+            // 2. 注销连接
             connectionManager.unregisterConnection(socket);
         } catch (Exception e) {
             log.error("[cleanupConnection][清理连接失败]", e);
@@ -338,6 +290,12 @@ public class IotTcpUpstreamHandler implements Handler&lt;NetSocket&gt; {
     /**
      * 发送响应消息
+     *
+     * @param socket    网络连接
+     * @param success   是否成功
+     * @param message   消息
+     * @param requestId 请求 ID
+     * @param codecType 消息编解码类型
      */
     private void sendResponse(NetSocket socket, boolean success, String message, String requestId, String codecType) {
         try {
@@ -346,8 +304,9 @@ public class IotTcpUpstreamHandler implements Handler&lt;NetSocket&gt; {
                     .put("message", message)
                     .build();
+            int code = success ? 0 : 401;
             IotDeviceMessage responseMessage = IotDeviceMessage.replyOf(requestId, AUTH_METHOD, responseData,
-                    success ? 0 : 401, message);
+                    code, message);
             byte[] encodedData = deviceMessageService.encodeDeviceMessage(responseMessage, codecType);
             socket.write(Buffer.buffer(encodedData));
@@ -357,94 +316,47 @@ public class IotTcpUpstreamHandler implements Handler&lt;NetSocket&gt; {
         }
     }
-    // ==================== 辅助方法 ====================
-
-    /**
-     * 判断是否为认证请求
-     */
-    private boolean isAuthRequest(IotDeviceMessage message) {
-        return AUTH_METHOD.equals(message.getMethod());
-    }
-
-    /**
-     * 解析认证参数
-     */
-    private AuthParams parseAuthParams(Object params) {
-        if (params == null) {
-            return null;
-        }
-        try {
-            JSONObject paramsJson = params instanceof JSONObject ? (JSONObject) params
-                    : JSONUtil.parseObj(params.toString());
-            String clientId = paramsJson.getStr("clientId");
-            String username = paramsJson.getStr("username");
-            String password = paramsJson.getStr("password");
-            return StrUtil.hasBlank(clientId, username, password) ? null
-                    : new AuthParams(clientId, username, password);
-        } catch (Exception e) {
-            log.warn("[parseAuthParams][解析认证参数失败]", e);
-            return null;
-        }
-    }
-
     /**
-     * 认证设备
+     * 验证设备认证信息
+     *
+     * @param authParams 认证参数
+     * @return 是否认证成功
      */
-    private boolean authenticateDevice(AuthParams authParams) {
+    private boolean validateDeviceAuth(IotDeviceAuthReqDTO authParams) {
         try {
             CommonResult<Boolean> result = deviceApi.authDevice(new IotDeviceAuthReqDTO()
-                    .setClientId(authParams.clientId)
-                    .setUsername(authParams.username)
-                    .setPassword(authParams.password));
-            return result.isSuccess() && Boolean.TRUE.equals(result.getData());
+                    .setClientId(authParams.getClientId()).setUsername(authParams.getUsername())
+                    .setPassword(authParams.getPassword()));
+            result.checkError();
+            return BooleanUtil.isTrue(result.getData());
         } catch (Exception e) {
-            log.error("[authenticateDevice][设备认证异常，username: {}]", authParams.username, e);
+            log.error("[validateDeviceAuth][设备认证异常，username: {}]", authParams.getUsername(), e);
             return false;
         }
     }
-    // TODO @haohao：改成 sendErrorResponse sendSuccessResponse 更清晰点？
-
     /**
      * 发送错误响应
+     *
+     * @param socket       网络连接
+     * @param requestId    请求 ID
+     * @param errorMessage 错误消息
+     * @param codecType    消息编解码类型
      */
-    private void sendError(NetSocket socket, String requestId, String errorMessage, String codecType) {
+    private void sendErrorResponse(NetSocket socket, String requestId, String errorMessage, String codecType) {
         sendResponse(socket, false, errorMessage, requestId, codecType);
     }
     /**
      * 发送成功响应
+     *
+     * @param socket    网络连接
+     * @param requestId 请求 ID
+     * @param message   消息
+     * @param codecType 消息编解码类型
      */
-    private void sendSuccess(NetSocket socket, String requestId, String message, String codecType) {
+    private void sendSuccessResponse(NetSocket socket, String requestId, String message, String codecType) {
         sendResponse(socket, true, message, requestId, codecType);
     }
-    // ==================== 内部类 ====================
-
-    // TODO @haohao：IotDeviceAuthReqDTO 复用这个？
-    /**
-     * 认证参数
-     */
-    @Data
-    @AllArgsConstructor
-    private static class AuthParams {
-
-        private final String clientId;
-        private final String username;
-        private final String password;
-
-    }
-
-    /**
-     * 消息信息
-     */
-    @Data
-    @AllArgsConstructor
-    private static class MessageInfo {
-
-        private final IotDeviceMessage message;
-
-        private final String codecType;
-
-    }
 }
 \ No newline at end of file
@@ -9,7 +9,7 @@ TCP äºŒè¿›åˆ¶åè®®æ˜¯ä¸€ç§é«˜æ•ˆçš„è‡ªå®šä¹‰åè®®æ ¼å¼ï¼Œé‡‡ç”¨ç´§å‡‘çš„äºŒè
 - **é«˜æ•ˆä¼ è¾“**ï¼šå®Œå…¨äºŒè¿›åˆ¶æ ¼å¼ï¼Œå‡å°‘æ•°æ®ä¼ è¾“é‡
 - **ç‰ˆæœ¬æŽ§åˆ¶**ï¼šå†…ç½®åè®®ç‰ˆæœ¬å·ï¼Œæ”¯æŒåè®®å‡çº§
 - **ç±»åž‹å®‰å…¨**ï¼šæ˜Žç¡®çš„æ¶ˆæ¯ç±»åž‹æ ‡è¯†
-- **æ‰©å±•æ€§**ï¼šé¢„ç•™æ ‡å¿—ä½ï¼Œæ”¯æŒæœªæ¥åŠŸèƒ½æ‰©å±•
+- **ç®€æ´è®¾è®¡**ï¼šåŽ»é™¤å†—ä½™å—æ®µï¼Œåè®®æ›´åŠ ç²¾ç®€
 - **å…¼å®¹æ€§**ï¼šä¸ŽçŽ°æœ‰ `IotDeviceMessage` æŽ¥å£å®Œå…¨å…¼å®¹
 ## 2. åè®®æ ¼å¼
@@ -17,9 +17,9 @@ TCP äºŒè¿›åˆ¶åè®®æ˜¯ä¸€ç§é«˜æ•ˆçš„è‡ªå®šä¹‰åè®®æ ¼å¼ï¼Œé‡‡ç”¨ç´§å‡‘çš„äºŒè
 ### 2.1 æ•´ä½“ç»“æž„
 ```
-+--------+--------+--------+--------+--------+--------+--------+--------+
-| é”æœ¯å— | ç‰ˆæœ¬å· | æ¶ˆæ¯ç±»åž‹| æ¶ˆæ¯æ ‡å¿—|         æ¶ˆæ¯é•¿åº¦(4å—èŠ‚)          |
-+--------+--------+--------+--------+--------+--------+--------+--------+
++--------+--------+--------+---------------------------+--------+--------+
+| é”æœ¯å— | ç‰ˆæœ¬å· | æ¶ˆæ¯ç±»åž‹|         æ¶ˆæ¯é•¿åº¦(4å—èŠ‚)          |
++--------+--------+--------+---------------------------+--------+--------+
 |           æ¶ˆæ¯ ID é•¿åº¦(2å—èŠ‚)        |      æ¶ˆæ¯ ID (å˜é•¿å—ç¬¦ä¸²)         |
 +--------+--------+--------+--------+--------+--------+--------+--------+
 |           æ–¹æ³•åé•¿åº¦(2å—èŠ‚)        |      æ–¹æ³•å(å˜é•¿å—ç¬¦ä¸²)         |
@@ -35,7 +35,6 @@ TCP äºŒè¿›åˆ¶åè®®æ˜¯ä¸€ç§é«˜æ•ˆçš„è‡ªå®šä¹‰åè®®æ ¼å¼ï¼Œé‡‡ç”¨ç´§å‡‘çš„äºŒè
 | é”æœ¯å— | 1å—èŠ‚ | byte | `0x7E` - åè®®è¯†åˆ«æ ‡è¯†ï¼Œç”¨äºŽæ•°æ®åŒæ¥ |
 | ç‰ˆæœ¬å· | 1å—èŠ‚ | byte | `0x01` - åè®®ç‰ˆæœ¬å·ï¼Œæ”¯æŒç‰ˆæœ¬æŽ§åˆ¶ |
 | æ¶ˆæ¯ç±»åž‹ | 1å—èŠ‚ | byte | `0x01`=è¯·æ±‚, `0x02`=å“åº” |
-| æ¶ˆæ¯æ ‡å¿— | 1å—èŠ‚ | byte | é¢„ç•™å—æ®µï¼Œç”¨äºŽæœªæ¥æ‰©å±• |
 | æ¶ˆæ¯é•¿åº¦ | 4å—èŠ‚ | int | æ•´ä¸ªæ¶ˆæ¯çš„æ€»é•¿åº¦ï¼ˆåŒ…å«å¤´éƒ¨ï¼‰ |
 | æ¶ˆæ¯ ID é•¿åº¦ | 2å—èŠ‚ | short | æ¶ˆæ¯ ID å—ç¬¦ä¸²çš„å—èŠ‚é•¿åº¦ |
 | æ¶ˆæ¯ ID | å˜é•¿ | string | æ¶ˆæ¯å”¯ä¸€æ ‡è¯†ç¬¦ï¼ˆUTF-8ç¼–ç ï¼‰ |
@@ -53,14 +52,12 @@ private static final byte MAGIC_NUMBER = (byte) 0x7E;
 private static final byte PROTOCOL_VERSION = (byte) 0x01;
 // æ¶ˆæ¯ç±»åž‹
-public static class MessageType {
-    public static final byte REQUEST = 0x01;   // è¯·æ±‚æ¶ˆæ¯
-    public static final byte RESPONSE = 0x02;  // å“åº”æ¶ˆæ¯
-}
+private static final byte REQUEST = (byte) 0x01;   // è¯·æ±‚æ¶ˆæ¯
+private static final byte RESPONSE = (byte) 0x02;  // å“åº”æ¶ˆæ¯
 // åè®®é•¿åº¦
-private static final int HEADER_FIXED_LENGTH = 8;      // å›ºå®šå¤´éƒ¨é•¿åº¦
-private static final int MIN_MESSAGE_LENGTH = 12;      // æœ€å°æ¶ˆæ¯é•¿åº¦
+private static final int HEADER_FIXED_LENGTH = 7;      // å›ºå®šå¤´éƒ¨é•¿åº¦
+private static final int MIN_MESSAGE_LENGTH = 11;      // æœ€å°æ¶ˆæ¯é•¿åº¦
 ```
 ## 3. æ¶ˆæ¯ç±»åž‹å’Œæ ¼å¼
@@ -86,8 +83,7 @@ private static final int MIN_MESSAGE_LENGTH = 12;      // æœ€å°æ¶ˆæ¯é•¿åº¦
 7E                              // é”æœ¯å— (0x7E)
 01                              // ç‰ˆæœ¬å· (0x01)
 01                              // æ¶ˆæ¯ç±»åž‹ (REQUEST)
-00                              // æ¶ˆæ¯æ ‡å¿— (é¢„ç•™)
-00 00 00 8A                     // æ¶ˆæ¯é•¿åº¦ (138å—èŠ‚)
+00 00 00 89                     // æ¶ˆæ¯é•¿åº¦ (137å—èŠ‚)
 00 19                           // æ¶ˆæ¯ ID é•¿åº¦ (25å—èŠ‚)
 61 75 74 68 5F 31 37 30 34 30   // æ¶ˆæ¯ ID: "auth_1704067200000_123"
 36 37 32 30 30 30 30 30 5F 31 
@@ -144,8 +140,7 @@ private static final int MIN_MESSAGE_LENGTH = 12;      // æœ€å°æ¶ˆæ¯é•¿åº¦
 7E                              // é”æœ¯å— (0x7E)
 01                              // ç‰ˆæœ¬å· (0x01)
 02                              // æ¶ˆæ¯ç±»åž‹ (RESPONSE)
-00                              // æ¶ˆæ¯æ ‡å¿— (é¢„ç•™)
-00 00 00 A5                     // æ¶ˆæ¯é•¿åº¦ (165å—èŠ‚)
+00 00 00 A4                     // æ¶ˆæ¯é•¿åº¦ (164å—èŠ‚)
 00 22                           // æ¶ˆæ¯ ID é•¿åº¦ (34å—èŠ‚)
 61 75 74 68 5F 72 65 73 70 6F   // æ¶ˆæ¯ ID: "auth_response_1704067200000_123"
 6E 73 65 5F 31 37 30 34 30 36
@@ -175,19 +170,19 @@ public static final String TYPE = &quot;TCP_BINARY&quot;;
 - **æ•°æ®ç´§å‡‘**ï¼šäºŒè¿›åˆ¶æ ¼å¼ï¼Œç›¸æ¯” JSON å‡å°‘ 30-50% çš„æ•°æ®é‡
 - **è§£æžé«˜æ•ˆ**ï¼šç›´æŽ¥äºŒè¿›åˆ¶æ“ä½œï¼Œå‡å°‘å—ç¬¦ä¸²è½¬æ¢å¼€é”€
 - **ç±»åž‹å®‰å…¨**ï¼šæ˜Žç¡®çš„æ¶ˆæ¯ç±»åž‹å’Œå—æ®µå®šä¹‰
-- **æ‰©å±•æ€§å¼º**ï¼šé¢„ç•™æ ‡å¿—ä½æ”¯æŒæœªæ¥åŠŸèƒ½æ‰©å±•
+- **è®¾è®¡ç®€æ´**ï¼šåŽ»é™¤å†—ä½™å—æ®µï¼Œåè®®æ›´åŠ ç²¾ç®€é«˜æ•ˆ
 - **ç‰ˆæœ¬æŽ§åˆ¶**ï¼šå†…ç½®ç‰ˆæœ¬å·æ”¯æŒåè®®å‡çº§
 ## 6. ä¸Ž JSON åè®®å¯¹æ¯”
-| ç‰¹æ€§ | äºŒè¿›åˆ¶åè®® | JSONåè®® |
-|------|------------|----------|
-| æ•°æ®å¤§å° | å°ï¼ˆèŠ‚çœ30-50%ï¼‰ | å¤§ |
-| è§£æžæ€§èƒ½ | é«˜ | ä¸ç‰ |
-| ç½‘ç»œå¼€é”€ | ä½Ž | é«˜ |
-| å¯è¯»æ€§ | å·® | ä¼˜ç§€ |
-| è°ƒè¯•éš¾åº¦ | é«˜ | ä½Ž |
-| æ‰©å±•æ€§ | è‰¯å¥½ï¼ˆæœ‰é¢„ç•™ä½ï¼‰ | ä¼˜ç§€ |
+| ç‰¹æ€§   | äºŒè¿›åˆ¶åè®®       | JSONåè®® |
+|------|-------------|--------|
+| æ•°æ®å¤§å° | å°ï¼ˆèŠ‚çœ30-50%ï¼‰ | å¤§      |
+| è§£æžæ€§èƒ½ | é«˜           | ä¸ç‰     |
+| ç½‘ç»œå¼€é”€ | ä½Ž           | é«˜      |
+| å¯è¯»æ€§  | å·®           | ä¼˜ç§€     |
+| è°ƒè¯•éš¾åº¦ | é«˜           | ä½Ž      |
+| æ‰©å±•æ€§  | è‰¯å¥½          | ä¼˜ç§€     |
 **æŽ¨èåœºæ™¯**ï¼š
 - âœ… **é«˜é¢‘æ•°æ®ä¼ è¾“**ï¼šä¼ æ„Ÿå™¨æ•°æ®å®žæ—¶ä¸ŠæŠ¥