unity 接入火山引擎API，包括即梦AI

lvcoc2025-09-07 22:50

风格化图生图

cs 复制代码 
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System;
using System.Security.Cryptography;
using System.Text;
using UnityEngine.Networking;
using Newtonsoft.Json;

//
[Serializable]
public class AlgorithmBaseResp
{
    public int status_code;
    public string status_message;
}
[Serializable]
public class Data
{
    public AlgorithmBaseResp algorithm_base_resp;
    public List<string> binary_data_base64;
    public List<string> image_urls;
}
[Serializable]
public class Result
{
    public int code;
    public Data data;
    public string message;
    public string request_id;
    public int status;
    public string time_elapsed;
}


public class PicToPic : MonoBehaviour
{
    public Result result;

    private static readonly char[] HexDigits = "0123456789ABCDEF".ToCharArray();
    private string _region= "cn-north-1";
    private string _service= "cv";
    private string _schema;
    private string _host= "visual.volcengineapi.com";
    private string _path= "/";
    private string _ak = "替换你自己的Access Key ID";
    private string _sk= "替换你自己的Secret Access Key";

    public string req_key;
    public string sub_req_key;

    public Texture2D texture2D;
    public void SignMenthod(string region, string service, string schema, string host, string path, string ak, string sk)
    {
        _region = region;
        _service = service;
        _schema = schema;
        _host = host;
        _path = path;
        _ak = ak;
        _sk = sk;
    }
    [ContextMenu("StartUpload")]
    public void StartUpload()
    {
        ImgToImg(req_key, sub_req_key);
    }

    public void ImgToImg(string key, string value)
    {
        try
        {
            string filePath = Application.dataPath + "/chooseState/1.png";
           // string baseImage = ImageToBase64(filePath);
            string baseImage = T2dToBase64(texture2D); 

            // 火山官网密钥写入
            string AccessKeyID = _ak;
            string SecretAccessKey = _sk;
            // 请求域名
            string endpoint = "visual.volcengineapi.com";
            string path = "/"; // 路径，不包含 Query// 请求接口信息
            string service = "cv";
            string region = "cn-north-1";
            string schema = "https";
            SignMenthod(region, service, schema, endpoint, path, AccessKeyID, SecretAccessKey);
            // 参考接口文档Query参数
            string action = "CVProcess";
            string version = "2022-08-31";
            DateTime date = DateTime.UtcNow;


            // 参考接口文档Body参数
            var req = new Dictionary<string, object>
            {
                { "req_key", key},
                { "sub_req_key",value},
                { "binary_data_base64", new List<string> { baseImage } },
                { "return_url",true}
            };
            StopCoroutine("DoRequest2");
            StartCoroutine(DoRequest2("POST", new Dictionary<string, string>(), Encoding.UTF8.GetBytes(Newtonsoft.Json.JsonConvert.SerializeObject(req)), date, action, version));
        }
        catch (Exception e)
        {
            Console.WriteLine(e.Message);
        }
    }


    //public string ImageToBase64(string filepath)
    //{
    //    using (System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(filepath))
    //    {
    //        MemoryStream ms = new MemoryStream();
    //        bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
    //        byte[] arr = new byte[ms.Length];
    //        ms.Position = 0;
    //        ms.Read(arr, 0, (int)ms.Length);
    //        ms.Close();
    //        return Convert.ToBase64String(arr);
    //    }
    //}
    public string T2dToBase64(Texture2D texture2D)
    {
        // 将 Texture2D 编码成 PNG 或 JPG
        byte[] imageBytes = texture2D.EncodeToJPG(100); // 或使用 EncodeToJPG()

        // 转换为 Base64 字符串
        return Convert.ToBase64String(imageBytes);
    }

    public IEnumerator DoRequest2(string method, Dictionary<string, string> queryList, byte[] body,
                          DateTime date, string action, string version)
    {
        if (body == null)
        {
            body = new byte[0];
        }

        string xContentSha256 = HashSHA256(body);
        string xDate = date.ToString("yyyyMMddTHHmmssZ");
        string shortXDate = xDate.Substring(0, 8);
        string contentType = "application/json";
        string signHeader = "host;x-date;x-content-sha256;content-type";

        var realQueryList = new SortedDictionary<string, string>(queryList)
        {
            { "Action", action },
            { "Version", version }
        };

        var queryStringBuilder = new StringBuilder();
        foreach (var kvp in realQueryList)
        {
            queryStringBuilder.Append(UrlEncode(kvp.Key))
                              .Append("=")
                              .Append(UrlEncode(kvp.Value))
                              .Append("&");
        }

        queryStringBuilder.Length--; // Remove the last '&'

        string canonicalStringBuilder = $"{method}\n{_path}\n{queryStringBuilder}\n" +
                                        $"host:{_host}\n" +
                                        $"x-date:{xDate}\n" +
                                        $"x-content-sha256:{xContentSha256}\n" +
                                        $"content-type:{contentType}\n" +
                                        "\n" +
                                        $"{signHeader}\n" +
                                        $"{xContentSha256}";

        Debug.Log(canonicalStringBuilder);

        string hashCanonicalString = HashSHA256(Encoding.UTF8.GetBytes(canonicalStringBuilder));
        string credentialScope = $"{shortXDate}/{_region}/{_service}/request";
        string signString = $"HMAC-SHA256\n{xDate}\n{credentialScope}\n{hashCanonicalString}";

        byte[] signKey = GenSigningSecretKeyV4(_sk, shortXDate, _region, _service);
        string signature = BitConverter.ToString(HmacSHA256(signKey, signString)).Replace("-", "").ToLower();

        var url = $"{_schema}://{_host}{_path}?{queryStringBuilder}";
        url = "https://visual.volcengineapi.com?Action=CVProcess&Version=2022-08-31";

        using (UnityWebRequest webRequest = new UnityWebRequest(url, "POST"))
        {
            // 设置请求内容
            webRequest.uploadHandler = (UploadHandler)new UploadHandlerRaw(body);
            webRequest.downloadHandler = (DownloadHandler)new DownloadHandlerBuffer();
            webRequest.SetRequestHeader("Content-Type", "application/json");
            webRequest.SetRequestHeader("Host", _host);
            webRequest.SetRequestHeader("X-Date", xDate);
            webRequest.SetRequestHeader("X-Content-Sha256", xContentSha256);
            webRequest.SetRequestHeader("Authorization",
                $"HMAC-SHA256 Credential={_ak}/{credentialScope}, SignedHeaders={signHeader}, Signature={signature}");

            yield return webRequest.SendWebRequest();
            if (webRequest.result != UnityWebRequest.Result.ConnectionError || webRequest.result != UnityWebRequest.Result.ProtocolError)
            {
                try
                {
                    string responseText = webRequest.downloadHandler.text;

                    Debug.Log(responseText);
                    //print(responseText);
                    result = JsonConvert.DeserializeObject<Result>(responseText);
                    //Data.Binarycount = result.data.binary_data_base64;
                    //Base64ToSave(result.data.binary_data_base64[0], null);
                    //显示以及后续处理                 
                }
                catch (Exception ex)
                {
                    Debug.Log($"发送失败:{ex.Message}");
                }
            }
            else
            {
                //失败提示处理
            }
            webRequest.Dispose();

        }
    }


    //public void Base64ToSave(string base64, Action<Bitmap> action)
    //{
    //    try
    //    {
    //        string imgPath = $"{Application.dataPath}\\saveImg\\" + "XXX.png";
    //        string imgeName = DateTime.Now.ToString("hh_mm_ss") + ".png";
    //        byte[] bytes = Convert.FromBase64String(base64);
    //        using (MemoryStream mStream = new MemoryStream(bytes))
    //        {
    //            System.Drawing.Image mImage = System.Drawing.Image.FromStream(mStream);
    //            Bitmap bmp = new Bitmap(mImage);
    //            bmp.Save(imgPath, System.Drawing.Imaging.ImageFormat.Png);
    //            action((Bitmap)bmp.Clone());
    //            bmp.Dispose();
    //            mImage.Dispose();
    //        }
    //    }
    //    catch (Exception ex)
    //    {
    //        Debug.Log($"保存图片出现异常:{ex.Message}");
    //    }
    //}

    private string UrlEncode(string source)
    {
        if (string.IsNullOrEmpty(source))
        {
            return source;
        }

        var encoded = new StringBuilder(source.Length);
        foreach (var symbol in Encoding.UTF8.GetBytes(source))
        {
            if (symbol >= 97 && symbol <= 122 || symbol >= 65 && symbol <= 90 || symbol >= 48 && symbol <= 57 ||
                symbol == (byte)'-' || symbol == (byte)'_' || symbol == (byte)'.' || symbol == (byte)'~')
            {
                encoded.Append((char)symbol);
            }
            else if (symbol == 32)
            {
                encoded.Append("%20");
            }
            else
            {
                encoded.Append('%');
                encoded.Append(HexDigits[symbol >> 4]);
                encoded.Append(HexDigits[symbol & 15]);
            }
        }

        return encoded.ToString();
    }

    public static string HashSHA256(byte[] content)
    {
        using (SHA256 sha256 = SHA256.Create())
        {
            byte[] hash = sha256.ComputeHash(content);
            return BitConverter.ToString(hash).Replace("-", "").ToLower();
        }
    }

    public static byte[] HmacSHA256(byte[] key, string content)
    {
        using (HMACSHA256 hmac = new HMACSHA256(key))
        {
            return hmac.ComputeHash(Encoding.UTF8.GetBytes(content));
        }
    }

    private byte[] GenSigningSecretKeyV4(string secretKey, string date, string region, string service)
    {
        byte[] kDate = HmacSHA256(Encoding.UTF8.GetBytes(secretKey), date);
        byte[] kRegion = HmacSHA256(kDate, region);
        byte[] kService = HmacSHA256(kRegion, service);
        return HmacSHA256(kService, "request");
    }
}

即梦AI图生图

cs 复制代码 
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System;
using System.Security.Cryptography;
using System.Text;
using UnityEngine.Networking;
using Newtonsoft.Json;


[Serializable]
public class JMData
{
    public List<string> PreviewImage_121;
    public AlgorithmBaseResp algorithm_base_resp;
    public List<object> binary_data_base64;
    public double comfyui_cost;
    public List<string> image_urls;
}
[Serializable]
public class JMResult
{
    public int code;
    public JMData data;
    public string message;
    public string request_id;
    public int status;
    public string time_elapsed;
}


public class JMAI : MonoBehaviour
{
    public JMResult result;

    private static readonly char[] HexDigits = "0123456789ABCDEF".ToCharArray();
    private string _region = "cn-north-1";
    private string _service = "cv";
    private string _schema;
    private string _host = "visual.volcengineapi.com";
    private string _path = "/";
    private string _ak = "替换你自己的Access Key ID";
    private string _sk= "替换你自己的Secret Access Key";

    public string prompt;

    public Texture2D texture2D;
    public void SignMenthod(string region, string service, string schema, string host, string path, string ak, string sk)
    {
        _region = region;
        _service = service;
        _schema = schema;
        _host = host;
        _path = path;
        _ak = ak;
        _sk = sk;
    }
    [ContextMenu("StartUpload")]
    public void StartUpload()
    {
        ImgToImg(prompt);
    }

    public void ImgToImg(string prompt)
    {
        try
        {
            string filePath = Application.dataPath + "/chooseState/1.png";
            // string baseImage = ImageToBase64(filePath);
            string baseImage = T2dToBase64(texture2D);

            // 火山官网密钥写入
            string AccessKeyID = _ak;
            string SecretAccessKey = _sk;
            // 请求域名
            string endpoint = "visual.volcengineapi.com";
            string path = "/"; // 路径，不包含 Query// 请求接口信息
            string service = "cv";
            string region = "cn-north-1";
            string schema = "https";
            SignMenthod(region, service, schema, endpoint, path, AccessKeyID, SecretAccessKey);
            // 参考接口文档Query参数
            string action = "CVProcess";
            string version = "2022-08-31";
            DateTime date = DateTime.UtcNow;


            // 参考接口文档Body参数
            var req = new Dictionary<string, object>
            {
                { "req_key", "jimeng_i2i_v30"},
                { "prompt",prompt},
                { "binary_data_base64", new List<string> { baseImage } },
                { "return_url",true}
            };
            StopCoroutine("DoRequest2");
            StartCoroutine(DoRequest2("POST", new Dictionary<string, string>(), Encoding.UTF8.GetBytes(Newtonsoft.Json.JsonConvert.SerializeObject(req)), date, action, version));
        }
        catch (Exception e)
        {
            Console.WriteLine(e.Message);
        }
    }


    //public string ImageToBase64(string filepath)
    //{
    //    using (System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(filepath))
    //    {
    //        MemoryStream ms = new MemoryStream();
    //        bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
    //        byte[] arr = new byte[ms.Length];
    //        ms.Position = 0;
    //        ms.Read(arr, 0, (int)ms.Length);
    //        ms.Close();
    //        return Convert.ToBase64String(arr);
    //    }
    //}
    public string T2dToBase64(Texture2D texture2D)
    {
        // 将 Texture2D 编码成 PNG 或 JPG
        byte[] imageBytes = texture2D.EncodeToJPG(100); // 或使用 EncodeToJPG()

        // 转换为 Base64 字符串
        return Convert.ToBase64String(imageBytes);
    }

    public IEnumerator DoRequest2(string method, Dictionary<string, string> queryList, byte[] body,
                          DateTime date, string action, string version)
    {
        if (body == null)
        {
            body = new byte[0];
        }

        string xContentSha256 = HashSHA256(body);
        string xDate = date.ToString("yyyyMMddTHHmmssZ");
        string shortXDate = xDate.Substring(0, 8);
        string contentType = "application/json";
        string signHeader = "host;x-date;x-content-sha256;content-type";

        var realQueryList = new SortedDictionary<string, string>(queryList)
        {
            { "Action", action },
            { "Version", version }
        };

        var queryStringBuilder = new StringBuilder();
        foreach (var kvp in realQueryList)
        {
            queryStringBuilder.Append(UrlEncode(kvp.Key))
                              .Append("=")
                              .Append(UrlEncode(kvp.Value))
                              .Append("&");
        }

        queryStringBuilder.Length--; // Remove the last '&'

        string canonicalStringBuilder = $"{method}\n{_path}\n{queryStringBuilder}\n" +
                                        $"host:{_host}\n" +
                                        $"x-date:{xDate}\n" +
                                        $"x-content-sha256:{xContentSha256}\n" +
                                        $"content-type:{contentType}\n" +
                                        "\n" +
                                        $"{signHeader}\n" +
                                        $"{xContentSha256}";

        Debug.Log(canonicalStringBuilder);

        string hashCanonicalString = HashSHA256(Encoding.UTF8.GetBytes(canonicalStringBuilder));
        string credentialScope = $"{shortXDate}/{_region}/{_service}/request";
        string signString = $"HMAC-SHA256\n{xDate}\n{credentialScope}\n{hashCanonicalString}";

        byte[] signKey = GenSigningSecretKeyV4(_sk, shortXDate, _region, _service);
        string signature = BitConverter.ToString(HmacSHA256(signKey, signString)).Replace("-", "").ToLower();

        var url = $"{_schema}://{_host}{_path}?{queryStringBuilder}";
        url = "https://visual.volcengineapi.com?Action=CVProcess&Version=2022-08-31";

        using (UnityWebRequest webRequest = new UnityWebRequest(url, "POST"))
        {
            // 设置请求内容
            webRequest.uploadHandler = (UploadHandler)new UploadHandlerRaw(body);
            webRequest.downloadHandler = (DownloadHandler)new DownloadHandlerBuffer();
            webRequest.SetRequestHeader("Content-Type", "application/json");
            webRequest.SetRequestHeader("Host", _host);
            webRequest.SetRequestHeader("X-Date", xDate);
            webRequest.SetRequestHeader("X-Content-Sha256", xContentSha256);
            webRequest.SetRequestHeader("Authorization",
                $"HMAC-SHA256 Credential={_ak}/{credentialScope}, SignedHeaders={signHeader}, Signature={signature}");

            yield return webRequest.SendWebRequest();
            if (webRequest.result != UnityWebRequest.Result.ConnectionError || webRequest.result != UnityWebRequest.Result.ProtocolError)
            {
                try
                {
                    string responseText = webRequest.downloadHandler.text;

                    Debug.Log(responseText);
                    //print(responseText);
                    result = JsonConvert.DeserializeObject<JMResult>(responseText);
                    //Data.Binarycount = result.data.binary_data_base64;
                    //Base64ToSave(result.data.binary_data_base64[0], null);
                    //显示以及后续处理                 
                }
                catch (Exception ex)
                {
                    Debug.Log($"发送失败:{ex.Message}");
                }
            }
            else
            {
                //失败提示处理
            }
            webRequest.Dispose();

        }
    }


    //public void Base64ToSave(string base64, Action<Bitmap> action)
    //{
    //    try
    //    {
    //        string imgPath = $"{Application.dataPath}\\saveImg\\" + "XXX.png";
    //        string imgeName = DateTime.Now.ToString("hh_mm_ss") + ".png";
    //        byte[] bytes = Convert.FromBase64String(base64);
    //        using (MemoryStream mStream = new MemoryStream(bytes))
    //        {
    //            System.Drawing.Image mImage = System.Drawing.Image.FromStream(mStream);
    //            Bitmap bmp = new Bitmap(mImage);
    //            bmp.Save(imgPath, System.Drawing.Imaging.ImageFormat.Png);
    //            action((Bitmap)bmp.Clone());
    //            bmp.Dispose();
    //            mImage.Dispose();
    //        }
    //    }
    //    catch (Exception ex)
    //    {
    //        Debug.Log($"保存图片出现异常:{ex.Message}");
    //    }
    //}

    private string UrlEncode(string source)
    {
        if (string.IsNullOrEmpty(source))
        {
            return source;
        }

        var encoded = new StringBuilder(source.Length);
        foreach (var symbol in Encoding.UTF8.GetBytes(source))
        {
            if (symbol >= 97 && symbol <= 122 || symbol >= 65 && symbol <= 90 || symbol >= 48 && symbol <= 57 ||
                symbol == (byte)'-' || symbol == (byte)'_' || symbol == (byte)'.' || symbol == (byte)'~')
            {
                encoded.Append((char)symbol);
            }
            else if (symbol == 32)
            {
                encoded.Append("%20");
            }
            else
            {
                encoded.Append('%');
                encoded.Append(HexDigits[symbol >> 4]);
                encoded.Append(HexDigits[symbol & 15]);
            }
        }

        return encoded.ToString();
    }

    public static string HashSHA256(byte[] content)
    {
        using (SHA256 sha256 = SHA256.Create())
        {
            byte[] hash = sha256.ComputeHash(content);
            return BitConverter.ToString(hash).Replace("-", "").ToLower();
        }
    }

    public static byte[] HmacSHA256(byte[] key, string content)
    {
        using (HMACSHA256 hmac = new HMACSHA256(key))
        {
            return hmac.ComputeHash(Encoding.UTF8.GetBytes(content));
        }
    }

    private byte[] GenSigningSecretKeyV4(string secretKey, string date, string region, string service)
    {
        byte[] kDate = HmacSHA256(Encoding.UTF8.GetBytes(secretKey), date);
        byte[] kRegion = HmacSHA256(kDate, region);
        byte[] kService = HmacSHA256(kRegion, service);
        return HmacSHA256(kService, "request");
    }
}

即梦图生视频

cs 复制代码 
using Newtonsoft.Json;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Security.Cryptography;
using System.Text;
using UnityEngine;
using UnityEngine.Networking;
[Serializable]
public class JMVideoData
{
    public List<object> binary_data_base64 ;
    public object image_urls ;
    public string resp_data ;
    public string status ;
    public string video_url ;
}
[Serializable]
public class JMVideoResult
{
    public int code ;
    public JMVideoData data ;
    public string message ;
    public string request_id ;
    public int status ;
    public string time_elapsed ;
}
public class JMVideo : MonoBehaviour
{
    public JMVideoResult result;

    private static readonly char[] HexDigits = "0123456789ABCDEF".ToCharArray();
    private string _region = "cn-north-1";
    private string _service = "cv";
    private string _schema;
    private string _host = "visual.volcengineapi.com";
    private string _path = "/";
    private string _ak = "替换你自己的Access Key ID";
    private string _sk= "替换你自己的Secret Access Key";

    public string prompt;

    public Texture2D texture2D;

    public string taskId;

    public void SignMenthod(string region, string service, string schema, string host, string path, string ak, string sk)
    {
        _region = region;
        _service = service;
        _schema = schema;
        _host = host;
        _path = path;
        _ak = ak;
        _sk = sk;
    }
    [ContextMenu("StartUpload")]
    public void StartUpload()
    {
        ImgToImg(prompt);
    }
    [ContextMenu("CheckTask")]
    public void CheckTask()
    {
        try
        {
            // 火山官网密钥写入
            string AccessKeyID = _ak;
            string SecretAccessKey = _sk;
            // 请求域名
            string endpoint = "visual.volcengineapi.com";
            string path = "/"; // 路径，不包含 Query// 请求接口信息
            string service = "cv";
            string region = "cn-north-1";
            string schema = "https";
            SignMenthod(region, service, schema, endpoint, path, AccessKeyID, SecretAccessKey);
            // 参考接口文档Query参数
            string action = "CVSync2AsyncGetResult";
            string version = "2022-08-31";
            DateTime date = DateTime.UtcNow;


            // 参考接口文档Body参数
            var req = new Dictionary<string, object>
            {
                { "req_key", "jimeng_vgfm_i2v_l20"},
                { "task_id",taskId}
            };
            StopCoroutine("DoRequest2");
            StartCoroutine(DoRequest2("POST", new Dictionary<string, string>(), Encoding.UTF8.GetBytes(Newtonsoft.Json.JsonConvert.SerializeObject(req)), date, action, version));
        }
        catch (Exception e)
        {
            Console.WriteLine(e.Message);
        }
    }


    public void ImgToImg(string prompt)
    {
        try
        {
            //string filePath = Application.dataPath + "/chooseState/1.png";
            // string baseImage = ImageToBase64(filePath);
            string baseImage = T2dToBase64(texture2D);

            // 火山官网密钥写入
            string AccessKeyID = _ak;
            string SecretAccessKey = _sk;
            // 请求域名
            string endpoint = "visual.volcengineapi.com";
            string path = "/"; // 路径，不包含 Query// 请求接口信息
            string service = "cv";
            string region = "cn-north-1";
            string schema = "https";
            SignMenthod(region, service, schema, endpoint, path, AccessKeyID, SecretAccessKey);
            // 参考接口文档Query参数
            string action = "CVSync2AsyncSubmitTask";
            string version = "2022-08-31";
            DateTime date = DateTime.UtcNow;


            // 参考接口文档Body参数
            var req = new Dictionary<string, object>
            {
                { "req_key", "jimeng_vgfm_i2v_l20"},
                { "prompt",prompt},
                { "binary_data_base64", new List<string> { baseImage } },
                { "aspect_ratio","16:9"}
            };
            StopCoroutine("DoRequest2");
            StartCoroutine(DoRequest2("POST", new Dictionary<string, string>(), Encoding.UTF8.GetBytes(Newtonsoft.Json.JsonConvert.SerializeObject(req)), date, action, version));
        }
        catch (Exception e)
        {
            Console.WriteLine(e.Message);
        }
    }


    //public string ImageToBase64(string filepath)
    //{
    //    using (System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(filepath))
    //    {
    //        MemoryStream ms = new MemoryStream();
    //        bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
    //        byte[] arr = new byte[ms.Length];
    //        ms.Position = 0;
    //        ms.Read(arr, 0, (int)ms.Length);
    //        ms.Close();
    //        return Convert.ToBase64String(arr);
    //    }
    //}
    public string T2dToBase64(Texture2D texture2D)
    {
        // 将 Texture2D 编码成 PNG 或 JPG
        byte[] imageBytes = texture2D.EncodeToJPG(100); // 或使用 EncodeToJPG()

        // 转换为 Base64 字符串
        return Convert.ToBase64String(imageBytes);
    }

    public IEnumerator DoRequest2(string method, Dictionary<string, string> queryList, byte[] body,
                          DateTime date, string action, string version)
    {
        if (body == null)
        {
            body = new byte[0];
        }

        string xContentSha256 = HashSHA256(body);
        string xDate = date.ToString("yyyyMMddTHHmmssZ");
        string shortXDate = xDate.Substring(0, 8);
        string contentType = "application/json";
        string signHeader = "host;x-date;x-content-sha256;content-type";

        var realQueryList = new SortedDictionary<string, string>(queryList)
        {
            { "Action", action },
            { "Version", version }
        };

        var queryStringBuilder = new StringBuilder();
        foreach (var kvp in realQueryList)
        {
            queryStringBuilder.Append(UrlEncode(kvp.Key))
                              .Append("=")
                              .Append(UrlEncode(kvp.Value))
                              .Append("&");
        }

        queryStringBuilder.Length--; // Remove the last '&'

        string canonicalStringBuilder = $"{method}\n{_path}\n{queryStringBuilder}\n" +
                                        $"host:{_host}\n" +
                                        $"x-date:{xDate}\n" +
                                        $"x-content-sha256:{xContentSha256}\n" +
                                        $"content-type:{contentType}\n" +
                                        "\n" +
                                        $"{signHeader}\n" +
                                        $"{xContentSha256}";

        Debug.Log(canonicalStringBuilder);

        string hashCanonicalString = HashSHA256(Encoding.UTF8.GetBytes(canonicalStringBuilder));
        string credentialScope = $"{shortXDate}/{_region}/{_service}/request";
        string signString = $"HMAC-SHA256\n{xDate}\n{credentialScope}\n{hashCanonicalString}";

        byte[] signKey = GenSigningSecretKeyV4(_sk, shortXDate, _region, _service);
        string signature = BitConverter.ToString(HmacSHA256(signKey, signString)).Replace("-", "").ToLower();

        var url = $"{_schema}://{_host}{_path}?{queryStringBuilder}";
        url = "https://visual.volcengineapi.com?Action="+action+"&Version=2022-08-31";

        using (UnityWebRequest webRequest = new UnityWebRequest(url, "POST"))
        {
            // 设置请求内容
            webRequest.uploadHandler = (UploadHandler)new UploadHandlerRaw(body);
            webRequest.downloadHandler = (DownloadHandler)new DownloadHandlerBuffer();
            webRequest.SetRequestHeader("Content-Type", "application/json");
            webRequest.SetRequestHeader("Host", _host);
            webRequest.SetRequestHeader("X-Date", xDate);
            webRequest.SetRequestHeader("X-Content-Sha256", xContentSha256);
            webRequest.SetRequestHeader("Authorization",
                $"HMAC-SHA256 Credential={_ak}/{credentialScope}, SignedHeaders={signHeader}, Signature={signature}");

            yield return webRequest.SendWebRequest();
            if (webRequest.result != UnityWebRequest.Result.ConnectionError || webRequest.result != UnityWebRequest.Result.ProtocolError)
            {
                try
                {
                    string responseText = webRequest.downloadHandler.text;

                    Debug.Log(responseText);
                  
                   // result = JsonConvert.DeserializeObject<JMVideoResult>(responseText);
                               
                }
                catch (Exception ex)
                {
                    Debug.Log($"发送失败:{ex.Message}");
                }
            }
            else
            {
                //失败提示处理
            }
            webRequest.Dispose();

        }
    }

  
    //public void Base64ToSave(string base64, Action<Bitmap> action)
    //{
    //    try
    //    {
    //        string imgPath = $"{Application.dataPath}\\saveImg\\" + "XXX.png";
    //        string imgeName = DateTime.Now.ToString("hh_mm_ss") + ".png";
    //        byte[] bytes = Convert.FromBase64String(base64);
    //        using (MemoryStream mStream = new MemoryStream(bytes))
    //        {
    //            System.Drawing.Image mImage = System.Drawing.Image.FromStream(mStream);
    //            Bitmap bmp = new Bitmap(mImage);
    //            bmp.Save(imgPath, System.Drawing.Imaging.ImageFormat.Png);
    //            action((Bitmap)bmp.Clone());
    //            bmp.Dispose();
    //            mImage.Dispose();
    //        }
    //    }
    //    catch (Exception ex)
    //    {
    //        Debug.Log($"保存图片出现异常:{ex.Message}");
    //    }
    //}

    private string UrlEncode(string source)
    {
        if (string.IsNullOrEmpty(source))
        {
            return source;
        }

        var encoded = new StringBuilder(source.Length);
        foreach (var symbol in Encoding.UTF8.GetBytes(source))
        {
            if (symbol >= 97 && symbol <= 122 || symbol >= 65 && symbol <= 90 || symbol >= 48 && symbol <= 57 ||
                symbol == (byte)'-' || symbol == (byte)'_' || symbol == (byte)'.' || symbol == (byte)'~')
            {
                encoded.Append((char)symbol);
            }
            else if (symbol == 32)
            {
                encoded.Append("%20");
            }
            else
            {
                encoded.Append('%');
                encoded.Append(HexDigits[symbol >> 4]);
                encoded.Append(HexDigits[symbol & 15]);
            }
        }

        return encoded.ToString();
    }

    public static string HashSHA256(byte[] content)
    {
        using (SHA256 sha256 = SHA256.Create())
        {
            byte[] hash = sha256.ComputeHash(content);
            return BitConverter.ToString(hash).Replace("-", "").ToLower();
        }
    }

    public static byte[] HmacSHA256(byte[] key, string content)
    {
        using (HMACSHA256 hmac = new HMACSHA256(key))
        {
            return hmac.ComputeHash(Encoding.UTF8.GetBytes(content));
        }
    }

    private byte[] GenSigningSecretKeyV4(string secretKey, string date, string region, string service)
    {
        byte[] kDate = HmacSHA256(Encoding.UTF8.GetBytes(secretKey), date);
        byte[] kRegion = HmacSHA256(kDate, region);
        byte[] kService = HmacSHA256(kRegion, service);
        return HmacSHA256(kService, "request");
    }
}
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