多个package时,进行Package.UpdatePackageVersionAsync会产生第二个package调用时直接使用FallbackURL

[ConnorSin]

查看了源码发现下面文件因为RequestCount是static的,第一包请求时调用GetPackageVersionRequestURL返回了正确的地址,轮到第二个包请求时就会直接返回了FallbackURL

`

using System.IO;

namespace YooAsset
{
internal class QueryRemotePackageVersionOperation : AsyncOperationBase
{
private enum ESteps
{
None,
DownloadPackageVersion,
Done,
}

	private static int RequestCount = 0;
	private readonly IRemoteServices _remoteServices;
	private readonly string _packageName;
	private readonly bool _appendTimeTicks;
	private readonly int _timeout;
	private UnityWebDataRequester _downloader;
	private ESteps _steps = ESteps.None;

	/// <summary>
	/// 包裹版本
	/// </summary>
	public string PackageVersion { private set; get; }
	

	public QueryRemotePackageVersionOperation(IRemoteServices remoteServices, string packageName, bool appendTimeTicks, int timeout)
	{
		_remoteServices = remoteServices;
		_packageName = packageName;
		_appendTimeTicks = appendTimeTicks;
		_timeout = timeout;
	}
	internal override void Start()
	{
		RequestCount++;
		_steps = ESteps.DownloadPackageVersion;
	}
	internal override void Update()
	{
		if (_steps == ESteps.None || _steps == ESteps.Done)
			return;

		if (_steps == ESteps.DownloadPackageVersion)
		{
			if (_downloader == null)
			{
				string fileName = YooAssetSettingsData.GetPackageVersionFileName(_packageName);
				string webURL = GetPackageVersionRequestURL(fileName);
				YooLogger.Log($"Beginning to request package version : {webURL}");
				_downloader = new UnityWebDataRequester();
				_downloader.SendRequest(webURL, _timeout);
			}

			Progress = _downloader.Progress();
			if (_downloader.IsDone() == false)
				return;

			if (_downloader.HasError())
			{
				_steps = ESteps.Done;
				Status = EOperationStatus.Failed;
				Error = _downloader.GetError();
			}
			else
			{
				PackageVersion = _downloader.GetText();
				if (string.IsNullOrEmpty(PackageVersion))
				{
					_steps = ESteps.Done;
					Status = EOperationStatus.Failed;
					Error = $"Remote package version is empty : {_downloader.URL}";
				}
				else
				{
					_steps = ESteps.Done;
					Status = EOperationStatus.Succeed;
				}
			}

			_downloader.Dispose();
		}
	}

	private string GetPackageVersionRequestURL(string fileName)
	{
		string url;

		// 轮流返回请求地址
		if (RequestCount % 2 == 0)
			url = _remoteServices.GetRemoteFallbackURL(fileName);
		else
			url = _remoteServices.GetRemoteMainURL(fileName);

		// 在URL末尾添加时间戳
		if (_appendTimeTicks)
			return $"{url}?{System.DateTime.UtcNow.Ticks}";
		else
			return url;
	}
}

}

`

[sunny352]

本质上应该是图省事没有做重试逻辑导致的，这种写法有四处，需要在这4个地方添加重试

[gmhevinci]

fixed 49b1889