Unity 讯飞之讯飞星火大模型的简单封装和使用（补充讯飞大模型识图功能）

一、简单介绍

二、实现原理

三、注意事项

一、简单介绍

Unity 工具类，自己整理的一些游戏开发可能用到的模块，单独独立使用，方便游戏开发。

这里简单的介绍讯飞大模型的封装和使用，进行聊天。

“讯飞星火认知大模型”是科大讯飞发布的产品，具有7大核心能力，即文本生成、语言理解、知识问答、逻辑推理、数学能力、代码能力、多模态能力。

星火v1.5、v2.0地址： http://spark-api.xf-yun.com/v1/completions

星火v3.0地址： http://spark-api.xf-yun.com/v3/completions

星火v1.5和v2.0使用的是同一个URL，domain参数配置如下：
# domain = "general"       # v1.5版本
#domain = "generalv2"    # v2.0版本
domain = "generalv3"    # v3.0版本
星火认知大模型 WebAPI 接口调用示例接口文档（必看）：星火认知大模型Web API文档 | 讯飞开放平台文档中心

错误码链接：星火认知大模型服务说明 | 讯飞开放平台文档中心

二、实现原理

1、申请星火大模型的 APP_ID 等相关信息

2、通过使用的大模型版本，以及当前的时间，结合申请星火大模型的 APP_ID 等相关信息，生成需要的 URL

3、通过对应的 json 数据格式，websocket 进行建立连接请求

4、这里是流式返回，对应解析数据格式，得到返回的信息

5、返回的关键信息结构，有些类似 gpt 的数据格式，用过的话，使用起来会很快

三、注意事项

1、注意 code 返回码，不同的返回码可以进行不同处理，避免产生意想不到的问题

2、注意 sid 的区分，如果上一次返回没有结束，关闭连接后，重新发起新的访问，可能会同时接收到上一次的未结束的数据流，和当次的数据流；如果不想接收到，注意通过 sid 进行区分；

3、注意在 LLMConfig 配置你的 APP_ID 等相关信息

四、效果预览

五、案例简单实现步骤

1、首先到讯飞官网获取对应的星火大模型的 APP_ID 等相关自己星火大模型的信息

讯飞星火认知大模型-AI大语言模型-星火大模型-科大讯飞

2、打开Unity ，简单搭建一个场景

3、可以参考星火大模型的相关demo，完成对应的讯飞大模型接口封装

这里包括 IIFlyLLMHandler（接口类，可以根据自己需要重新定义接口），BaseIFlyLLMHandler（基类），IFlyLLMHandler（基本的讯飞接口大模型类），AutoReConnectIFlyLLMHandler（待自动重连的讯飞接口大模型类）

4、完成对应接口的封装之后，添加一个简单的测试类 TestIFlyLLMHandler

5、把 TestIFlyLLMHandler 添加到场景中，比对应赋值

6、运行结果如上

六、关键代码

1、TestIFlyLLMHandler

using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class TestIFlyLLMHandler : MonoBehaviour
{
    public Text TagrgetText;
    public InputField TagrgetInputField;
    public Button TagrgetButton;

    List<string> m_StrLst = new List<string>() { 
        "你是谁",
        "最近天气"
    };

    IIFlyLLMHandler m_Handler;

    // Start is called before the first frame update
    void Start()
    {
        m_Handler = new IFlyLLMHandler();
        m_Handler.Initialized();
        TagrgetText.text = "";
        m_Handler.OnMessageReceivedAction = (jsonResponse) => { TagrgetText.text += jsonResponse.payload.choices.text[0].content; };

        TagrgetButton.onClick.AddListener(() => {
            TagrgetText.text = "";
            m_Handler.SendMsg(TagrgetInputField.text);
        });
    }

    // Update is called once per frame
    void Update()
    {
        if (Input.anyKeyDown) {
            //m_Handler.SendMsg(m_StrLst[Random.Range(0,m_StrLst.Count)]);
        }
    }
}

2、IFlyLLMHandler

using BestHTTP.WebSocket;
using System;
using UnityEngine;

/// <summary>
/// 使用讯飞大模型
/// </summary>
public class IFlyLLMHandler : BaseIFlyLLMHandler
{
    #region Data
    
    /// <summary>
    /// 发送连接服务器失败事件
    /// </summary>
    int m_TimerServerAccessFailure = -1;
    const float INTERVAL_TIME_SEND_SERVER_ACCESS_FAILURE = 4.0f;

    #endregion

    #region interface function

    /// <summary>
    /// 初始化
    /// </summary>
    public override void Initialized()
    {
        base.Initialized();
    }

    /// <summary>
    /// 发送数据
    /// </summary>
    /// <param name="askContent"></param>
    public override void SendMsg(string askContent)
    {
        try
        {
            CacheHistory(askContent);

            Connect();
        }
        catch (Exception e)
        {
            Debug.LogError($"e.ToString() {e.ToString()}\ne.Message {e.Message}");
        }
    }

    #endregion

    #region Websocket回调

    /// <summary>
    /// 建立连接事件
    /// </summary>
    /// <param name="ws"></param>
    protected override void OnWebSocketOpen(WebSocket ws)
    {
        Debug.Log("WebSocket Connected!");
        Send();
    }

    /// <summary>
    /// 连接错误信息
    /// </summary>
    /// <param name="ws"></param>
    /// <param name="ex"></param>
    protected override void OnWebSocketError(WebSocket ws, Exception ex)
    {
        base.OnWebSocketError(ws, ex);
        SendServerAccessFailure(1005);
    }

    /// <summary>
    /// 连接关闭事件
    /// </summary>
    /// <param name="ws"></param>
    /// <param name="code"></param>
    /// <param name="message"></param>
    protected override void OnWebSocketClosed(WebSocket ws, ushort code, string message)
    {
        base.OnWebSocketClosed(ws, code, message);
        SendServerAccessFailure(code);
    }

    #endregion

    #region private function

    /// <summary>
    /// 发送服务器连接失败错误
    /// </summary>
    /// <param name="code"></param>
    private void SendServerAccessFailure(UInt16 code)
    {
        if (code == 1005) // 连接失败错误码
        {
            if (m_TimerServerAccessFailure != -1) return;
            m_TimerServerAccessFailure = Timer.Instance.Post2Scale((index) => {
                Debug.Log("[BubbleChatUseIFlyLLMHandler] SendServerAccessFailure");
                m_TimerServerAccessFailure = -1;
            }, INTERVAL_TIME_SEND_SERVER_ACCESS_FAILURE);
        }
    }

    #endregion
}

3、BaseIFlyLLMHandler

using Newtonsoft.Json;
using System;
using UnityEngine;
using System.Text;
using BestHTTP.WebSocket;
using System.Collections.Generic;

/**
 * 星火认知大模型 WebAPI 接口调用示例 接口文档（必看）：https://www.xfyun.cn/doc/spark/Web.html
 * 错误码链接：https://www.xfyun.cn/doc/spark/%E6%8E%A5%E5%8F%A3%E8%AF%B4%E6%98%8E.html （code返回错误码时必看）
 * @author iflytek
 */


/// <summary>
/// 讯飞大模型基类
/// </summary>
public class BaseIFlyLLMHandler : IIFlyLLMHandler
{
    #region Data

    /// <summary>
    /// WebSocket
    /// </summary>
    protected WebSocket m_WebSocket;

    /// <summary>
    /// 缓存的历史数据的队列
    /// </summary>
    protected List<IIFlyLLMHandler.Content> m_CacheHistory = new List<IIFlyLLMHandler.Content>();

    /// <summary>
    /// 是否读完
    /// </summary>
    protected bool m_ReadEnd = true;

    /// <summary>
    /// 是否需要重发
    /// </summary>
    protected bool m_NeedSend = false;

    /// <summary>
    /// 大模型的配置
    /// </summary>
    protected LLMConfig m_Config;

    /// <summary>
    /// 记录上一个老的 sid ，因为打断后，如果上一次的没有传输完，下一次连接依然会接收到该 sid 的数据流
    /// </summary>
    protected string m_OldSid = "";

    /// <summary>
    /// // 用来记录中间的sid ,因为可能被打断(不一定每次都能完全正常流程接收完数据)
    /// </summary>
    protected string m_RcdSid = ""; 

    /// <summary>
    /// 接收到数据的事件
    /// </summary>
    public Action<IIFlyLLMHandler.JsonResponse> OnMessageReceivedAction { get; set; }

    #endregion

    #region interface function

    
    /// <summary>
    /// 初始化
    /// </summary>
    public virtual void Initialized()
    {
        m_Config = new LLMConfig();
        
    }

    /// <summary>
    /// 连接
    /// </summary>
    public virtual void Connect()
    {

        if (m_WebSocket != null)
        {
            Close();
        }
        string authUrl = GetAuthUrl();
        string url = authUrl.Replace("http://", "ws://").Replace("https://", "wss://");
        m_WebSocket = new WebSocket(new Uri(url));
        m_WebSocket.OnOpen += OnWebSocketOpen;
        m_WebSocket.OnMessage += OnWebSocketMessage;
        m_WebSocket.OnError += OnWebSocketError;
        m_WebSocket.OnClosed += OnWebSocketClosed;
        m_WebSocket.Open();

    }


    /// <summary>
    /// 关闭
    /// </summary>
    public virtual void Close()
    {
        m_OldSid = m_RcdSid;
        m_WebSocket?.Close();
        m_WebSocket = null;
    }

    /// <summary>
    /// 重置
    /// </summary>
    public virtual void Reset()
    {
        m_CacheHistory.Clear();
    }

    /// <summary>
    /// 发送消息
    /// </summary>
    /// <param name="history"></param>
    public virtual void SendMsg(string askContent)
    {
        try
        {
            CacheHistory(askContent);

            if (m_WebSocket != null && m_WebSocket.IsOpen)
            {
                if (m_ReadEnd)
                {
                    Send();
                }
                else
                {
                    //中断websocket，然后再发送
                    Close();
                    m_NeedSend = true;
                }
            }
            else
            {
                m_NeedSend = true;
                Connect();
            }
        }
        catch (Exception e)
        {
            Debug.LogError(e.Message);
        }
    }

    

    #endregion

    #region Websocket回调

    /// <summary>
    /// 建立连接的事件
    /// </summary>
    /// <param name="ws"></param>
    protected virtual void OnWebSocketOpen(WebSocket ws)
    {
        Debug.Log("WebSocket Connected!");
        if (m_NeedSend) Send();
    }

    /// <summary>
    /// 接收到数据的事件
    /// </summary>
    /// <param name="ws"></param>
    /// <param name="message"></param>
    protected virtual void OnWebSocketMessage(WebSocket ws, string message)
    {
        // 处理接收到的消息
        // 这里你可以根据需要进行相应的处理
        Debug.Log($"Received message: {message}");
        IIFlyLLMHandler.JsonResponse jsonResponse = JsonConvert.DeserializeObject<IIFlyLLMHandler.JsonResponse>(message);

        if (jsonResponse.header.code == 10013) // 错误码 10013：输入内容审核不通过，涉嫌违规，请重新调整输入内容
        {
            Debug.LogError($"OnWebSocketMessage message {jsonResponse.header.message} ");
        }
        else
        {
            Debug.Log($"OnWebSocketMessage m_OldSid {m_OldSid}, jsonResponse.header.sid {jsonResponse.header.sid} jsonResponse.header.code {jsonResponse.header.code}");
            // 判断不是上一次的 sid 的旧的数据流在做出反应
            if (jsonResponse.header.sid.Equals(m_OldSid) == false)
            {
                if (jsonResponse.header.code == 10014) // 错误码 10014：输出内容涉及敏感信息，审核不通过，后续结果无法展示给用户
                {
                    jsonResponse=GetHandleJsonResponse(jsonResponse);
                }
                OnMessageReceivedAction?.Invoke(jsonResponse);
                m_RcdSid = jsonResponse.header.sid;
            }
        }

        if (jsonResponse.payload.choices.status == 0)
        {
            Debug.Log("Get First IFlyLLM Response");
        }

        if (jsonResponse.payload.choices.status == 2)
        {
            m_ReadEnd = true;
            Debug.Log("Get Last IFlyLLM Response");
            m_OldSid = jsonResponse.header.sid;
        }
    }

    /// <summary>
    /// 连接发生错误的事件
    /// </summary>
    /// <param name="ws"></param>
    /// <param name="ex"></param>
    protected virtual void OnWebSocketError(WebSocket ws, Exception ex)
    {
        Debug.LogError($"WebSocket Error: {ex.Message}");
    }

    /// <summary>
    /// 连接关闭的事件
    /// </summary>
    /// <param name="ws"></param>
    /// <param name="code"></param>
    /// <param name="message"></param>
    protected virtual void OnWebSocketClosed(WebSocket ws, UInt16 code, string message)
    {
        Debug.LogFormat("WebSocket Closed!: code={0}, msg={1}", code, message);
    }

    #endregion

    #region protected function

    /// <summary>
    /// 真正发送数据
    /// </summary>
    protected virtual void Send()
    {
        m_NeedSend = false;
        m_ReadEnd = false;
        IIFlyLLMHandler.JsonRequest request = CreateRequest();
        string jsonString = JsonConvert.SerializeObject(request);
        Debug.LogError(jsonString);
        m_WebSocket?.Send(jsonString);
    }


    /// <summary>
    /// 创建一个连接请求
    /// </summary>
    /// <returns></returns>
    protected virtual IIFlyLLMHandler.JsonRequest CreateRequest()
    {
        return new IIFlyLLMHandler.JsonRequest
        {
            header = new IIFlyLLMHandler.Header
            {
                app_id = m_Config.IFLY_APPID,
                uid = Guid.NewGuid().ToString().Substring(0, 10)
            },
            parameter = new IIFlyLLMHandler.Parameter
            {
                chat = new IIFlyLLMHandler.Chat
                {
                    domain = "generalv3",
                    temperature = 0.01,
                    max_tokens = 480
                }
            },
            payload = new IIFlyLLMHandler.Payload
            {
                message = new IIFlyLLMHandler.Message
                {
                    text = m_CacheHistory
                }
            }
        };
    }



    /// <summary>
    /// 缓存历史记录数据结构，优化性能
    /// (缓存需要自己额外补充，这里先做简单的提问)
    /// </summary>
    protected virtual void CacheHistory(string askContent)
    {
        m_CacheHistory.Clear();
        IIFlyLLMHandler.Content content = new IIFlyLLMHandler.Content();
        content.role = "user";
        content.content = askContent;
        m_CacheHistory.Add(content);
    }

    /// <summary>
    /// 敏感输出内容后的处理
    /// 重新组织数据(涉及敏感内容不予展示)
    /// </summary>
    /// <param name="jsonResponse"></param>
    /// <returns></returns>
    protected virtual IIFlyLLMHandler.JsonResponse GetHandleJsonResponse(IIFlyLLMHandler.JsonResponse jsonResponse) {
        int status = 2;

        IIFlyLLMHandler.HeaderResponse header = new IIFlyLLMHandler.HeaderResponse() { code = 0, message = "Success", sid = jsonResponse.header.sid, status = status };
        
        IIFlyLLMHandler.Text text = new IIFlyLLMHandler.Text() {content="***(涉及敏感内容不予展示)。",role= "assistant",index=0 };
        List<IIFlyLLMHandler.Text> textlst = new List<IIFlyLLMHandler.Text>();
        textlst.Add(text);

        IIFlyLLMHandler.Choices choices = new IIFlyLLMHandler.Choices() { status= status, seq=999,text=textlst};
        IIFlyLLMHandler.PayloadResponse payload = new IIFlyLLMHandler.PayloadResponse() { choices=choices};

        IIFlyLLMHandler.JsonResponse reorganizingInformationJRspn = new IIFlyLLMHandler.JsonResponse() {header=header,payload=payload };

        return reorganizingInformationJRspn;
    }

    #endregion

    #region 字符串操作

    /// <summary>
    /// 生成得到授权的 URL 
    /// </summary>
    /// <returns></returns>
    private string GetAuthUrl()
    {
        string date = DateTime.UtcNow.ToString("r");
        Uri uri = new Uri(m_Config.IFLY_HOST_URL);
        StringBuilder builder = new StringBuilder("host: ").Append(uri.Host).Append("\n").//
                                Append("date: ").Append(date).Append("\n").//
                                Append("GET ").Append(uri.LocalPath).Append(" HTTP/1.1");
        string sha = HMACsha256(m_Config.IFLY_API_SECRET, builder.ToString());
        string authorization = string.Format("api_key=\"{0}\", algorithm=\"{1}\", headers=\"{2}\", signature=\"{3}\"", m_Config.IFLY_API_KEY, "hmac-sha256", "host date request-line", sha);
        string NewUrl = "https://" + uri.Host + uri.LocalPath;
        string path1 = "authorization" + "=" + Convert.ToBase64String(System.Text.Encoding.UTF8.GetBytes(authorization));
        date = date.Replace(" ", "%20").Replace(":", "%3A").Replace(",", "%2C");
        string path2 = "date" + "=" + date;
        string path3 = "host" + "=" + uri.Host;
        NewUrl = NewUrl + "?" + path1 + "&" + path2 + "&" + path3;
        return NewUrl;
    }

    /// <summary>
    /// HMACsha256 
    /// </summary>
    /// <param name="apiSecretIsKey"></param>
    /// <param name="buider"></param>
    /// <returns></returns>
    private string HMACsha256(string apiSecretIsKey, string buider)
    {
        byte[] bytes = System.Text.Encoding.UTF8.GetBytes(apiSecretIsKey);
        System.Security.Cryptography.HMACSHA256 hMACSHA256 = new System.Security.Cryptography.HMACSHA256(bytes);
        byte[] date = System.Text.Encoding.UTF8.GetBytes(buider);
        date = hMACSHA256.ComputeHash(date);
        hMACSHA256.Clear();
        return Convert.ToBase64String(date);
    }

    #endregion

}

4、IIFlyLLMHandler

using System;
using System.Collections.Generic;

/// <summary>
/// 讯飞大模型接口类
/// </summary>
public interface IIFlyLLMHandler
{
    /// <summary>
    /// 初始化
    /// </summary>
    void Initialized();
    /// <summary>
    /// 连接
    /// </summary>
    void Connect();
    /// <summary>
    /// 关闭连接
    /// </summary>
    void Close();
    /// <summary>
    /// 重置
    /// </summary>
    void Reset();
    /// <summary>
    /// 发送信息
    /// </summary>
    /// <param name="askContent"></param>
    void SendMsg(string askContent);
    /// <summary>
    /// 接收到数据事件
    /// </summary>
    Action<JsonResponse> OnMessageReceivedAction { get; set; }

    #region Request数据类定义

    public class JsonRequest
    {
        public Header header { get; set; }
        public Parameter parameter { get; set; }
        public Payload payload { get; set; }
    }

    public class Header
    {
        public string app_id { get; set; }
        public string uid { get; set; }
    }

    public class Parameter
    {
        public Chat chat { get; set; }
    }

    public class Chat
    {
        public string domain { get; set; }
        public double temperature { get; set; }
        public int max_tokens { get; set; }
    }

    public class Payload
    {
        public Message message { get; set; }
    }

    public class Message
    {
        public List<Content> text { get; set; }
    }

    public class Content
    {
        public string role { get; set; }
        public string content { get; set; }
    }

    #endregion

    #region Response数据类型定义

    public class JsonResponse
    {
        public HeaderResponse header { get; set; }
        public PayloadResponse payload { get; set; }
    }

    public class HeaderResponse
    {
        public int code { get; set; }
        public string message { get; set; }
        public string sid { get; set; }
        public int status { get; set; }
    }

    public class PayloadResponse
    {
        public Choices choices { get; set; }
    }

    public class Choices
    {
        public int status { get; set; }
        public int seq { get; set; }
        public List<Text> text { get; set; }
    }

    public class Text
    {
        public string content { get; set; }
        public string role { get; set; }
        public int index { get; set; }
    }

    #endregion
}

5、LLMConfig

public class LLMConfig
{
    #region 讯飞

    /// <summary>
    /// 应用APPID（必须为webapi类型应用，并开通星火认知大模型授权）
    /// </summary>
    public readonly string IFLY_APPID = "YOUR_IFLY_APPID";

    /// <summary>
    /// 接口密钥（webapi类型应用开通星火认知大模型后，控制台--我的应用---星火认知大模型---相应服务的apikey）
    /// </summary>
    public readonly string IFLY_API_SECRET = "YOUR_IFLY_API_SECRET";

    /// <summary>
    /// 接口密钥（webapi类型应用开通星火认知大模型后，控制台--我的应用---星火认知大模型---相应服务的apisecret）
    /// </summary>
    public readonly string IFLY_API_KEY = "YOUR_IFLY_API_KEY";

    /// <summary>
    /// 讯飞大模型访问地址
    /// </summary>
    public readonly string IFLY_HOST_URL = "https://spark-api.xf-yun.com/v3.1/chat";

    /// <summary>
    /// 讯飞图像识别
    /// </summary>
    public readonly string IFLY_IMAGE_RECOGNIZE_URL = "wss://spark-api.cn-huabei-1.xf-yun.com/v2.1/image";

    #endregion
}

6、AutoReConnectIFlyLLMHandler

using BestHTTP.WebSocket;
using System;
using UnityEngine;

/// <summary>
/// 带自动重连的讯飞大模型访问
/// </summary>
public class AutoReConnectIFlyLLMHandler : BaseIFlyLLMHandler
{

    #region Data

    /// <summary>
    /// m_ReconnectTimerId ：自动重连的 TimerId
    /// </summary>
    int m_ReconnectTimerId = -1;

    /// <summary>
    /// m_ReconnectDelay ：  自动重连的 时间
    /// </summary>
    float m_ReconnectDelay = 0.5f;

    #endregion

    #region interface function

    /// <summary>
    /// 初始化
    /// </summary>
    public override void Initialized()
    {
        base.Initialized();
        Connect();
    }

    /// <summary>
    /// 关闭连接
    /// </summary>
    public override void Close()
    {
        CancelReconnectTimer();
        base.Close();
    }

    /// <summary>
    /// 自动重连
    /// </summary>
    internal void AutoReconnect()
    {
        Connect();
    }

    /// <summary>
    /// 发送请求
    /// </summary>
    /// <param name="askContent"></param>
    public override void SendMsg(string askContent)
    {
        try
        {
            CacheHistory(askContent);

            if (m_WebSocket != null && m_WebSocket.IsOpen)
            {
                if (m_ReadEnd)
                {
                    Send();
                }
                else
                {
                    //中断websocket，然后再发送
                    Close();
                    m_NeedSend = true;
                }
            }
            else
            {
                m_NeedSend = true;
            }
        }
        catch (Exception e)
        {
            Debug.LogError(e.Message);
        }
    }

    #endregion

    #region Websocket回调

    /// <summary>
    /// 关闭连接事件
    /// </summary>
    /// <param name="ws"></param>
    /// <param name="code"></param>
    /// <param name="message"></param>
    protected override void OnWebSocketClosed(WebSocket ws, ushort code, string message)
    {
        base.OnWebSocketClosed(ws, code, message);
        RunReconnectTimer();
    }

    /// <summary>
    /// 连接发生错误的事件
    /// </summary>
    /// <param name="ws"></param>
    /// <param name="ex"></param>
    protected override void OnWebSocketError(WebSocket ws, Exception ex)
    {
        base.OnWebSocketError(ws, ex);
        RunReconnectTimer();
    }
    #endregion
    #region 计时器

    /// <summary>
    /// 计时自动重新连接
    /// </summary>
    private void RunReconnectTimer()
    {
        Debug.Log($"Scheduling reconnect in {m_ReconnectDelay} seconds...");
        CancelReconnectTimer();
        m_ReconnectTimerId = Timer.Instance.Post2Really((v) => { AutoReconnect(); }, m_ReconnectDelay);
    }

    /// <summary>
    /// 取消重新连接计时
    /// </summary>
    private void CancelReconnectTimer()
    {
        if (m_ReconnectTimerId != -1)
        {
            Timer.Instance.Cancel(m_ReconnectTimerId);
            m_ReconnectTimerId = -1;
        }
    }

    #endregion
}

七、案例下载地址

https://download.csdn.net/download/u014361280/88565465

补充、讯飞大模型-图像识别

1、IFlyLLMImageHandler

using UnityEngine;
using System;
using System.Text;
using Newtonsoft.Json;
using BestHTTP.WebSocket;
using System.Collections.Generic;

public class IFlyLLMImageHandler 
{
    private WebSocket m_WebSocket;

    private int m_ReconnectTimerId = -1;
    private float m_ReconnectDelay = 0.5f;
    private List<Content> m_CacheHistory = new List<Content>();

    public Action<JsonResponse> OnMessageReceivedAction;
    private bool m_ReadEnd = true;
    private bool m_NeedSend = false;

    private LLMConfig m_Config;

    public void Initialized()
    {
        m_Config = new LLMConfig();
        Connect();
    }

    /// <summary>
    /// 连接
    /// </summary>
    public void Connect()
    {

        if (m_WebSocket != null)
        {
            Close();
        }
        string authUrl = GetAuthUrl();
        string url = authUrl.Replace("http://", "ws://").Replace("https://", "wss://");
        m_WebSocket = new WebSocket(new Uri(url));
        m_WebSocket.OnOpen += OnWebSocketOpen;
        m_WebSocket.OnMessage += OnWebSocketMessage;
        m_WebSocket.OnError += OnWebSocketError;
        m_WebSocket.OnClosed += OnWebSocketClosed;
        m_WebSocket.Open();

    }

    /// <summary>
    /// 关闭
    /// </summary>
    public void Close()
    {
        CancelReconnectTimer();
        m_WebSocket?.Close();
        m_WebSocket = null;
    }

    public void Reset()
    {
        m_CacheHistory.Clear();
    }

    /// <summary>
    /// 自动重连
    /// </summary>
    private void AutoReconnect()
    {
        Connect();
    }

    /// <summary>
    /// 发送消息
    /// </summary>
    /// <param name="history"></param>
    public void SendMsg(string base64,string ask)
    {
        try
        {
            ImageDataAsk(base64, ask);

            if (m_WebSocket != null && m_WebSocket.IsOpen)
            {
                if (m_ReadEnd)
                {
                    Send();
                }
                else
                {
                    //中断websocket，然后再发送
                    Close();
                    m_NeedSend = true;
                }
            }
            else
            {
                m_NeedSend = true;
            }
        }
        catch (Exception e)
        {
            Debug.LogError(e.Message);
        }
    }

    private void Send()
    {
        m_NeedSend = false;
        m_ReadEnd = false;
        JsonRequest request = CreateRequest();
        string jsonString = JsonConvert.SerializeObject(request);
        Debug.LogError(jsonString);
        m_WebSocket?.Send(jsonString);
    }

    #region Websocket回调

    private void OnWebSocketOpen(WebSocket ws)
    {
        Debug.Log("WebSocket Connected!");
        if (m_NeedSend) Send();
    }

    private void OnWebSocketMessage(WebSocket ws, string message)
    {
        // 处理接收到的消息
        // 这里你可以根据需要进行相应的处理
        Debug.Log($"Received message: {message}");
        JsonResponse jsonResponse = JsonConvert.DeserializeObject<IFlyLLMImageHandler.JsonResponse>(message);
        OnMessageReceivedAction?.Invoke(jsonResponse);

        if (jsonResponse.payload.choices.status == 0)
        {
            Debug.Log("Get First IFlyLLM Response");
        }

        if (jsonResponse.payload.choices.status == 2)
        {
            m_ReadEnd = true;
            Debug.Log("Get Last IFlyLLM Response");
        }
    }

    private void OnWebSocketError(WebSocket ws, Exception ex)
    {
        Debug.LogError($"WebSocket Error: {ex.Message}");
        RunReconnectTimer();
    }

    private void OnWebSocketClosed(WebSocket ws, UInt16 code, string message)
    {
        Debug.LogFormat("WebSocket Closed!: code={0}, msg={1}", code, message);
        RunReconnectTimer();
    }

    #endregion

    private JsonRequest CreateRequest()
    {
        return new JsonRequest
        {
            header = new Header
            {
                app_id = m_Config.IFLY_APPID,
                uid = Guid.NewGuid().ToString().Substring(0, 10)
            },
            parameter = new Parameter
            {
                chat = new Chat
                {
                    domain = "general",
                    temperature = 0.5,
                    top_k= 4,
                    max_tokens = 2048,
                    auditing = "default"

                }
            },
            payload = new Payload
            {
                message = new Message
                {
                    text = m_CacheHistory
                }
            }
        };
    }

    private void ImageDataAsk(string base64,string ask) {
        m_CacheHistory.Clear();
        Content content = new Content();
        content.role = "user";
        content.content = base64;
        content.content_type = "image";
        m_CacheHistory.Add(content);

        content = new Content();
        content.role = "user";
        content.content = ask;
        content.content_type = "text";
        m_CacheHistory.Add(content);
    }


    #region 计时器

    private void RunReconnectTimer()
    {
        Debug.Log($"Scheduling reconnect in {m_ReconnectDelay} seconds...");
        CancelReconnectTimer();
        m_ReconnectTimerId = Timer.Instance.Post2Really((v) => { AutoReconnect(); }, m_ReconnectDelay);
    }

    private void CancelReconnectTimer()
    {
        if (m_ReconnectTimerId != -1)
        {
            Timer.Instance.Cancel(m_ReconnectTimerId);
            m_ReconnectTimerId = -1;
        }
    }

    #endregion

    #region 字符串操作

    private string GetAuthUrl()
    {
        string date = DateTime.UtcNow.ToString("r");
        Uri uri = new Uri(m_Config.IFLY_IMAGE_RECOGNIZE_URL);
        StringBuilder builder = new StringBuilder("host: ").Append(uri.Host).Append("\n").//
                                Append("date: ").Append(date).Append("\n").//
                                Append("GET ").Append(uri.LocalPath).Append(" HTTP/1.1");
        string sha = HMACsha256(m_Config.IFLY_API_SECRET, builder.ToString());
        string authorization = string.Format("api_key=\"{0}\", algorithm=\"{1}\", headers=\"{2}\", signature=\"{3}\"", m_Config.IFLY_API_KEY, "hmac-sha256", "host date request-line", sha);
        string NewUrl = "https://" + uri.Host + uri.LocalPath;
        string path1 = "authorization" + "=" + Convert.ToBase64String(System.Text.Encoding.UTF8.GetBytes(authorization));
        date = date.Replace(" ", "%20").Replace(":", "%3A").Replace(",", "%2C");
        string path2 = "date" + "=" + date;
        string path3 = "host" + "=" + uri.Host;
        NewUrl = NewUrl + "?" + path1 + "&" + path2 + "&" + path3;
        return NewUrl;
    }

    private string HMACsha256(string apiSecretIsKey, string buider)
    {
        byte[] bytes = System.Text.Encoding.UTF8.GetBytes(apiSecretIsKey);
        System.Security.Cryptography.HMACSHA256 hMACSHA256 = new System.Security.Cryptography.HMACSHA256(bytes);
        byte[] date = System.Text.Encoding.UTF8.GetBytes(buider);
        date = hMACSHA256.ComputeHash(date);
        hMACSHA256.Clear();
        return Convert.ToBase64String(date);
    }

    #endregion

    #region Request数据类定义

    public class JsonRequest
    {
        public Header header { get; set; }
        public Parameter parameter { get; set; }
        public Payload payload { get; set; }
    }

    public class Header
    {
        public string app_id { get; set; }
        public string uid { get; set; }
    }

    public class Parameter
    {
        public Chat chat { get; set; }
    }

    public class Chat
    {
        public string domain { get; set; }
        public double temperature { get; set; }
        public int top_k { get; set; }
        public int max_tokens { get; set; }
        public string auditing { get; set; }
    }

    public class Payload
    {
        public Message message { get; set; }
    }

    public class Message
    {
        public List<Content> text { get; set; }
    }

    public class Content
    {
        public string role { get; set; }
        public string content { get; set; }
        public string content_type { get; set; }
    }

    #endregion

    #region Response数据类型定义

    public class JsonResponse
    {
        public HeaderResponse header { get; set; }
        public PayloadResponse payload { get; set; }
    }

    public class HeaderResponse
    {
        public int code { get; set; }
        public string message { get; set; }
        public string sid { get; set; }
        public int status { get; set; }
    }

    public class PayloadResponse
    {
        public Choices choices { get; set; }
        public Usage usage { get; set; }
    }

    public class Choices
    {
        public int status { get; set; }
        public int seq { get; set; }
        public List<Text> text { get; set; }
    }

    public class Text
    {
        public string content { get; set; }
        public string role { get; set; }
        public int index { get; set; }
    }

    public class Usage
    {
        public UsageText text { get; set; }
    }

    public class UsageText { 
        public int completion_tokens { get; set; }
        public int question_tokens { get; set; }
        public int prompt_tokens { get; set; }
        public int total_tokens { get; set; }
    }

    #endregion
}

2、TestIFlyLLMImageHandler


using UnityEngine;

public class TestIFlyLLMImageHandler : Singleton<TestIFlyLLMImageHandler>
{
    public void Test() {

        IFlyLLMImageHandler imageHandler = new IFlyLLMImageHandler();
        imageHandler.Initialized();
        imageHandler.OnMessageReceivedAction += (str) => {
            Debug.Log(" TestIFlyLLMImageHandler OnMessageReceivedAction " + str.payload.choices.text[0].content);
        
        };

        CameraCaptureImageForBase64.Instance.OnGetBase64ImageSuccess = (base64) =>
        {
            imageHandler.SendMsg(base64, "这是什么，尽可能详细的回答");
        };
        CameraCaptureImageForBase64.Instance.OnGetBase64ImageFailed = async (str) =>
        {
            string base64 = await ImageLoader.Instance.LoadImageAndConvertToBase64();
            imageHandler.SendMsg(base64, "这是什么，尽可能详细的回答");
        };
        CameraCaptureImageForBase64.Instance.CaptureImage();
    }
}

3、CameraCaptureImageForBase64


using System;
using System.Collections;
using UnityEngine;
using UnityEngine.Android;

/// <summary>
/// 打开 Camera  捕捉图片，获取图片 base64 信息
/// </summary>
public class CameraCaptureImageForBase64 : MonoSingleton<CameraCaptureImageForBase64>
{
    #region data
    
    /// <summary>
    /// 获取图片成功事件
    /// </summary>
    public Action<string> OnGetBase64ImageSuccess;
    /// <summary>
    /// 获取图片失败事件
    /// </summary>
    public Action<string> OnGetBase64ImageFailed;

    private WebCamTexture webcamTexture; // 用于获取相机图像
    private Coroutine m_Coroutine;

    #endregion

    /// <summary>
    /// 捕捉图片
    /// </summary>
    public void CaptureImage()
    {
        m_Coroutine = StartCoroutine(CaptureRoutine());
    }

    /// <summary>
    /// 停止捕捉
    /// </summary>
    public void StopCapture()
    {
        if (m_Coroutine!=null)
        {
            StopCoroutine(m_Coroutine);
            m_Coroutine = null;
        }
    }

    #region private function

    private IEnumerator CaptureRoutine()
    {
        // 检查是否有相机权限
        if (!Permission.HasUserAuthorizedPermission(Permission.Camera))
        {
            // 如果没有相机权限，等待用户授权
            yield return RequestCameraPermission();
        }

        // 启动相机
        StartCamera();

        // 等待用户拍照
        yield return WaitForUserToTakePhoto();

        // 拍照
        Texture2D photo = TakePhoto();

        if (photo != null)
        {
            // 将Texture2D转换为byte数组
            byte[] imageBytes = photo.EncodeToPNG();

            // 将byte数组转换为base64字符串
            string base64String = Convert.ToBase64String(imageBytes);

            Debug.Log("Base64 Image: " + base64String);

            // 在这里执行你的异步任务，例如上传base64图片到服务器
            OnGetBase64ImageSuccess?.Invoke(base64String);
        }
        else {
            OnGetBase64ImageFailed?.Invoke("capture image failed.");
        }

        // 停止相机
        StopCamera();
    }

    private IEnumerator RequestCameraPermission()
    {
        // 请求相机权限
        Permission.RequestUserPermission(Permission.Camera);

        // 等待用户授权
        yield return new WaitUntil(() => Permission.HasUserAuthorizedPermission(Permission.Camera));
    }

    private void StartCamera()
    {
        // 获取可用的相机设备
        WebCamDevice[] devices = WebCamTexture.devices;

        if (devices.Length > 0)
        {
            // 使用第一个相机设备
            webcamTexture = new WebCamTexture(devices[0].name);
            webcamTexture.Play();
        }
        else
        {
            Debug.LogError("No camera device available.");
            OnGetBase64ImageFailed?.Invoke("No camera device available.");
        }
    }

    private IEnumerator WaitForUserToTakePhoto()
    {
        // 可以其他按键操作拍照
        // 这里直接等到若干秒
        yield return new WaitForSecondsRealtime(0.1f);
    }

    private Texture2D TakePhoto()
    {
        if (webcamTexture != null && webcamTexture.isPlaying)
        {
            Texture2D photo = new Texture2D(webcamTexture.width, webcamTexture.height);
            photo.SetPixels(webcamTexture.GetPixels());
            photo.Apply();
            return photo;
        }
        return null;
    }

    private void StopCamera()
    {
        if (webcamTexture != null && webcamTexture.isPlaying)
        {
            webcamTexture.Stop();
        }
    }

    #endregion
}

4、ImageLoader


using System;
using System.Threading.Tasks;
using UnityEngine;
using UnityEngine.AddressableAssets;
using UnityEngine.ResourceManagement.AsyncOperations;

public class ImageLoader : Singleton<ImageLoader>
{
    [SerializeField] private string imageAddress = "车"; // 设置为你图片在Addressables中的地址

    public async Task<string> LoadImageAndConvertToBase64()
    {
        string base64String = string.Empty;

        // 使用Addressables加载图片
        AsyncOperationHandle<Texture2D> handle = Addressables.LoadAssetAsync<Texture2D>(imageAddress);

        // 等待加载完成
        await handle.Task;

        if (handle.Status == AsyncOperationStatus.Succeeded)
        {
            Texture2D texture = handle.Result;

            // 将Texture2D转换为byte数组
            byte[] imageBytes = texture.EncodeToPNG();

            // 将byte数组转换为base64字符串
            base64String = Convert.ToBase64String(imageBytes);

            Debug.Log("Base64 Image: " + base64String);
        }
        else
        {
            Debug.LogError("Failed to load image: " + handle.OperationException);
        }

        // 释放资源
        Addressables.Release(handle);

        return base64String;
    }
}