Unity 大文件上传下载 (WebApi) 动态添加mimetype

最新推荐文章于 2024-04-30 18:05:53 发布

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最新推荐文章于 2024-04-30 18:05:53 发布 · 1.6k 阅读

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CC 4.0 BY-SA版权

本文介绍了Unity中利用BestHttp和UnityWebRequest进行大文件上传下载的方法，包括设置Content-Type、读取文件为byte[]、处理上传下载进度。在IIS上，针对大文件上传需调整MaxBufferSize和MaxReceivedMessageSize参数，并解决.mimeType问题，通过添加或修改IIS网站的MIME类型来支持特定文件扩展名。

下载比较简单，只要有个网页路径就行网页路径示例：http://192.168.1.21:8013/Data/LocationSystem.exe

但是上传不行，客户端上传之后，服务端需要设置接收方法。把接收数据保存到服务端

在IIS上挂载一个网站，里面链接到我们上传下载的文件夹

URI:http://192.168.1.21:8013/Data 本地路径：C:\Users\Administrator\Desktop\网页所在文件夹\Data

1.客户端

项目内使用了BestHttpPro插件，所以默认用了这个插件，去实现上传和下载的功能

A.使用BestHttp下载文件：

   [ContextMenu("Download")]
    public void StartDownload()
    {
        var request = new HTTPRequest(new System.Uri("http://192.168.1.21:8013/Data/LocationSystem.exe"), (req, resp) => {
            //下载完成之后执行

List<byte[]> fragments = resp.GetStreamedFragments();

            // 把下载的文件保存到E盘根目录
            using (FileStream fs = new FileStream(@"E:\LocationSystem1.exe", FileMode.Append))
                foreach (byte[] data in fragments) fs.Write(data, 0, data.Length);
            if (resp.IsStreamingFinished) Debug.Log("Download finished!");
        });
        request.UseStreaming = true;
        request.StreamFragmentSize = 1 * 1024 * 1024;// 1 megabyte
        request.DisableCache = true;// already saving to a file, so turn off caching
        request.OnProgress = OnLoadProgress;
        request.Send();
    }

//下载进度

   void OnLoadProgress(HTTPRequest request, int download, int length)
    {
        float progressPercent = (download / (float)length) * 100.0f;
        Debug.Log("Download: " + progressPercent.ToString("F2") + "%");
    }

B:使用BestHttp上传文件：

[ContextMenu("UploadRawData")]
    public void UploadSecond()
    {
        StartCoroutine(UploadFiles());
    }
    public IEnumerator UploadFiles()
    {
        string serverUrl = "http://localhost:8733/api/fileTransfer/uploadFiles";
        var request = new HTTPRequest(new System.Uri(serverUrl), HTTPMethods.Post, OnFinished);
        string fileName = @"E:\xxx.txt";
        byte[] data = FileContent(fileName);
        string fileName2 = @"E:\LocationSystem1.exe";
        byte[] data2 = FileContent(fileName2);
        request.AddBinaryData("BigFile", data, "xxxttttt1.txt");
        request.AddBinaryData("BigFile", data2, "xxxeeeeee2.exe");
        request.SetHeader("Content-Type", "application/octet-stream");
        request.OnUploadProgress = OnUploadProgress;
        request.DisableCache = true;
        request.Send();
        yield return null;
    }

void OnFinished(HTTPRequest originalRequest, HTTPResponse response)
    {
        Debug.Log("finished...");
        Debug.Log("Response:"+response.DataAsText);
    }

    void OnUploadProgress(HTTPRequest request, long uploaded, long length)
    {
        float progressPercent = (uploaded / (float)length) * 100.0f;
        Debug.Log("Uploaded: " + progressPercent.ToString("F2") + "%");
    }

C:使用UnityWebRequest上传文件（对应的，也可以使用这个下载文件）
    [ContextMenu("PostWebapi")]
    public void StartPost()
    {
        StartCoroutine(PostObject("http://localhost:8733/api/fileTransfer/uploadFiles", null, null));
    }

    public IEnumerator PostObject(string url, Action callback, Action<string> errorCallback)
    {
        string[] path = new string[2];
        path[0] = @"E:\ZTest\xxx.txt";
        path[1] = @"E:\ZTest\xxxeee.tx

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