public async void DownloadAsync(ABResFile file, bool isReLoad = false)
{
ABFile = file;
isDownload = false;
if (!isReLoad)
{
downErrorNum = 0;
}
//资源地址拼接
string url = rootURL + ABFile.File;
request = UnityWebRequest.Get(url);
await request.SendWebRequest();
if (request.error != null) //文件下载失败
{
Debug.LogError($"DownLoad Error:{url}" + " " + request.error);
downErrorNum++;
await dowLoadWait;
DownloadAsync(file, true); //尝试重新下载
if (downErrorNum >= 5)
{
downErrorNum = 0;
//PanelMgr.Instance.GetPanel<VersionCheckPl>(PanelName.VersionCheckPl).VersionInfo.text = string.Format("下载文件失败，可能网络情况不佳,正在重新下载!!!\n{0}", file.File);
}
return;
}
//下载的文件MD5和配置表里的MD5文件对比
string downMD5 = MD5Utils.MD5ByteFile(Data);
if (downMD5 == file.MD5)
{
try
{
//保存文件
string path = Path.Combine(AppSetting.PersistentDataPath, file.File);
FileInfo info = new FileInfo(path);
//不存在文件夹则创建对应文件夹
if (!Directory.Exists(info.DirectoryName))
{
Directory.CreateDirectory(info.DirectoryName);
}
//指定位置创建文件，如果文件存在，将被改写
using (FileStream fs = new FileStream(path, FileMode.Create))
{
fs.Write(Data, 0, Data.Length);
fs.Flush();
fs.Close();
}
isDownload = true;
}
catch (Exception ex)
{
Debug.LogError($"文件保存失败！！！！{file.File}\n{ex.Message}");
await dowLoadWait;
DownloadAsync(file, true); //尝试重新下载
}
}
else //MD5效验失败
{
downErrorNum++;
if (downErrorNum >= 5)
{
downErrorNum = 0;
//PanelMgr.Instance.GetPanel<VersionCheckPl>(PanelName.VersionCheckPl).VersionInfo.text = string.Format("文件MD5效验失败，正在重新下载\n{0}", file.File);
}
Debug.LogError($"文件MD5值错误 配置MD5:{downMD5} 实际下载MD5:{file.MD5}");
await dowLoadWait;
DownloadAsync(file, true); //尝试重新下载
}
}