UnityWebRequest

파일을 다운로드

    public string url;
    public string fileName;
    public string fileType;
    IEnumerator DownloadFile()
    {
        string filePath= $"{Application.persistentDataPath}/{fileName}";
        if( (fileType != null)&& (fileType.Trim() != "") )
        {
            filePath += $".{fileType}";
        }
        UnityWebRequest unityWebRequest = UnityWebRequest.Get(url);
        yield return unityWebRequest.SendWebRequest();
        if (unityWebRequest.isNetworkError)
        {
            Debug.LogError(unityWebRequest.error);
        }
        else
        {
            File.WriteAllBytes(filePath, unityWebRequest.downloadHandler.data);
        }
    }

 

 

V2

    /// <summary>
    /// 다운 다되면 파일경로를 반환
    /// </summary>
    /// <param name="downloadlink"></param>
    /// <param name="filePath"></param>
    /// <returns></returns>
    IEnumerator DownloadFile(string downloadlink, string filePath)
    {
        Debug.Log($"Download:{downloadlink}");
        {
            DOWNLOAD_RETRY:;
            {
                var unityWebRequest = UnityWebRequest.Get(downloadlink);
                var operation = unityWebRequest.SendWebRequest();
                yield return new WaitUntil(() => operation.isDone);

                if (unityWebRequest.isNetworkError)
                {
                    Debug.LogError(unityWebRequest.error);
                    yield return new WaitForSeconds(3f);
                    goto DOWNLOAD_RETRY;
                }
                else
                {
                    Debug.Log(filePath);

                    var folderPath = System.IO.Path.GetDirectoryName(filePath);
                    Debug.Log(folderPath);
                    if (System.IO.Directory.Exists(folderPath) == false)//폴더가 없으면 생성
                    {
                        System.IO.Directory.CreateDirectory(folderPath);
                    }
                    System.IO.File.WriteAllBytes(filePath, unityWebRequest.downloadHandler.data);
                }
            }
        }
        yield return filePath;
    }

 

 

 

 

 

DownloadHandlerFile 방식 

메모리를 딱 필요한만큼만 쓴다. 위에는 2배사용

V3

    List<string> downloadList = new List<string>();
    IEnumerator DownloadFile(string downloadlink, string filePath)
    {
        downloadList.Add(downloadlink);

        DOWNLOADRETRY:;
        {
            UnityWebRequest unityWebRequest = UnityWebRequest.Get(downloadlink);
            unityWebRequest.downloadHandler = new DownloadHandlerFile(filePath);

            var operation = unityWebRequest.SendWebRequest();
            yield return new WaitUntil(() => operation.isDone);

            if (unityWebRequest.isNetworkError)
            {
                Debug.LogError(unityWebRequest.error);
                yield return new WaitForSeconds(1f);
                goto DOWNLOADRETRY;
            }
            else
            {
                Debug.Log(filePath);
            }
        }
        downloadList.Remove(downloadlink);
    }

 

V1~V2

    IEnumerator DownloadFile(string downloadlink, string filePath)
    {
        UnityWebRequest unityWebRequest = UnityWebRequest.Get(downloadlink);
        unityWebRequest.downloadHandler = new DownloadHandlerFile(filePath);
        var operation = unityWebRequest.SendWebRequest();
        while (!operation.isDone)
        {
            yield return new WaitForSeconds(0.01f);
        }
        if (unityWebRequest.isNetworkError)
        {
            Debug.LogError(unityWebRequest.error);
        }
        else
        {
            Debug.Log(filePath);
        }
    }

 

 

 

V2

List<String> DownloadList = new List<String>();
    IEnumerator DownloadFile(string downloadlink, string filePath)
    {
        UnityWebRequest unityWebRequest = UnityWebRequest.Get(downloadlink);
        unityWebRequest.downloadHandler = new DownloadHandlerFile(filePath);

        DownloadList.Add(downloadlink);
        DOWNLOADRETRY:;
        var operation = unityWebRequest.SendWebRequest();
        while (!operation.isDone)
        {
            yield return new WaitForSeconds(0.01f);
        }
        if (unityWebRequest.isNetworkError)
        {
            Debug.LogError(unityWebRequest.error);
            yield return new WaitForSeconds(1f);
            goto DOWNLOADRETRY;
        }
        else
        {
            Debug.Log(filePath);
        }
        DownloadList.RemoveAt(DownloadList.FindIndex(0, DownloadList.Count, x => x == downloadlink));
    }

 

 

 

 

 

 

HTML 다운로드

    public string urlSample= "https://wmmu.tistory.com/";
    IEnumerator DownloadHTML(string url)
    {
        UnityWebRequest unityWebRequest;
        unityWebRequest = UnityWebRequest.Get(url);
        yield return unityWebRequest.SendWebRequest();
        if (unityWebRequest.isNetworkError)
        {
            Debug.LogError(unityWebRequest.error);
        }
        else
        {
            Debug.Log(unityWebRequest.downloadHandler.text);
        }
    }

 

 

 

오디오 파일 로드

//전용 세이브 폴더 참조시에는
//$"file://{UnityEngine.Application.persistentDataPath}/Audio.mp3";
static AudioClip LoadAudioClip(string downloadLink)
{
    var fileName= downloadLink;
    if (System.IO.File.Exists(downloadLink))
    {
        downloadLink = $"file://{downloadLink}";
        fileName = System.IO.Path.GetFileNameWithoutExtension(downloadLink);
    }
    UnityWebRequest unityWebRequest = UnityWebRequestMultimedia.GetAudioClip(downloadLink, AudioType.UNKNOWN);

    var operation = unityWebRequest.SendWebRequest();
    while (!operation.isDone)
    {
        Thread.Sleep(1);
    }
    if (unityWebRequest.isNetworkError)
    {
        Debug.LogError(unityWebRequest.error);
    }
    else
    {
        //Debug.Log("LoadAudioClipSuccess");
    }
    var clip = DownloadHandlerAudioClip.GetContent(unityWebRequest);
    clip.name = fileName;
    return clip;
}

 

 

 

 

캐시 테스트

    public string url;
    public string cookie;
    public string fileName;
    public string fileType;
    IEnumerator DownloadFile()
    {
        string filePath = $"{Application.persistentDataPath}/{fileName}";
        if ((fileType != null) && (fileType.Trim() != ""))
        {
            filePath += $".{fileType}";
        }
        UnityWebRequest unityWebRequest = UnityWebRequest.Get(url);
        if (string.IsNullOrWhiteSpace(cookie)==false)
        {
            unityWebRequest.SetRequestHeader("Cookie", cookie);
        }
        yield return unityWebRequest.SendWebRequest();
        if (unityWebRequest.isNetworkError)
        {
            Debug.LogError(unityWebRequest.error);
        }
        else
        {
            Debug.Log(unityWebRequest.downloadHandler.text);
            //File.WriteAllBytes(filePath, unityWebRequest.downloadHandler.data);
        }
    }
    // Start is called before the first frame update
    void Start()
    {
        StartCoroutine(DownloadFile());
    }