/// <summary>
/// 下载核心任务对象
/// </summary>
/// <param name="ashxRoute">核心传输对象</param>
/// <returns>返回任务</returns>
public override async Task ExecuteOutAsync(AshxRouteData ashxRoute)
{
ashxRoute.HttpContext.Response.Headers.Add("Connection", "Keep-Alive");
ashxRoute.HttpContext.Response.Headers.Add("Content-Length", FileStream.Length.ToString());
ashxRoute.HttpContext.Response.AppendHeader("Content-Disposition", "attachment;filename=" + Name);
//await ashxRoute.HttpContext.Response.Body.WriteAsync(Body.AsMemory(0, Body.Length));
//long len = (1024 * 512) > FileStream.Length ? FileStream.Length : (1024 * 512);
//byte[] slice = new byte[1024 * 512];
//byte[] slice = new byte[len];
//long seekiength = 0;
//do
//{
// int i = await FileStream.ReadAsync(slice.AsMemory(0, slice.Length));
// await writeStream.WriteAsync(slice.AsMemory(0, i));
// await writeStream.FlushAsync();
// seekiength += i;
// Array.Clear(slice, 0, i);
//} while (FileStream.Length > seekiength);
//await FileStream.DisposeAsync();
System.IO.Stream writeStream = ashxRoute.HttpContext.Response.Body;
await HttpContextExtension.StreamMove(FileStream, writeStream, 1024 * 512);
}
/// <summary>
/// 实现页面内容的输出（采用异步IO读取）
/// </summary>
/// <param name="ashxRoute">当前请求对象</param>
/// <returns></returns>
public override async Task ExecuteOutAsync(AshxRouteData ashxRoute)
{
Microsoft.AspNetCore.Hosting.IWebHostEnvironment env = ashxRoute.HttpContext.GetService <Microsoft.AspNetCore.Hosting.IWebHostEnvironment>();
Microsoft.Extensions.FileProviders.IFileInfo view;
if (env.WebRootPath is null)
{
string webRootPath = env.ContentRootPath + "\\wwwroot";
System.IO.Directory.CreateDirectory(webRootPath + "\\Views");
env.WebRootPath = webRootPath;
env.WebRootFileProvider = new Microsoft.Extensions.FileProviders.PhysicalFileProvider(webRootPath);
}
//string filePath = "";
if (IsView)
{
//string directory = AppContext.BaseDirectory;
//filePath = string.Concat(directory, "ApiView\\", ashxRoute.Controller, '\\', ashxRoute.Action, ".html");
if (string.IsNullOrEmpty(ViewName))
{
ViewName = $"Views\\{ashxRoute.Controller}\\{ashxRoute.Action}.html";
}
else
{
ViewName = $"Views\\{ashxRoute.Controller}\\{ViewName}\\{ashxRoute.Action}.html";
}
view = env.WebRootFileProvider.GetFileInfo(ViewName);
}
else
{
view = env.WebRootFileProvider.GetFileInfo(ViewName);
//if (ViewName != null && ViewName[1].Equals(':'))
//{
// filePath = ViewName;
//}
//else
//{
// string directory = AppContext.BaseDirectory;
// filePath = string.Concat(directory, ViewName);// '\\' $"{directory}/{ViewName}";
//}
//System.IO.File.Exists(@"D:\Nixue工作室\Tool.Net\WebTestApp\wwwroot\"+ViewName);
//System.IO.File.OpenRead(@"D:\Nixue工作室\Tool.Net\WebTestApp\wwwroot\" + ViewName);
}
//if (System.IO.File.Exists(filePath))
//{
// filePath = viewName;
//}
//else
//{
// string directory = AppContext.BaseDirectory.Replace("\\", "/");
// filePath = $"{directory}/{viewName}";
//}
if (view.Exists)
{
//byte[] obj = System.IO.File.ReadAllBytes(filePath);
//byte[] obj = await System.IO.File.ReadAllBytesAsync(filePath);
//await ashxRoute.HttpContext.Response.WriteAsync(obj);
System.IO.Stream streamview = view.CreateReadStream();
System.IO.Stream writeStream = ashxRoute.HttpContext.Response.Body;
//long len = (1024 * 50) > view.Length ? view.Length : (1024 * 50);
//byte[] slice = new byte[len];
//long seekiength = 0;
//do
//{
// int i = await streamview.ReadAsync(slice.AsMemory(0, slice.Length));
// await writeStream.WriteAsync(slice.AsMemory(0, i));
// await writeStream.FlushAsync();
// seekiength += i;
// Array.Clear(slice, 0, i);
//} while (view.Length > seekiength);
//await streamview.DisposeAsync();
await HttpContextExtension.StreamMove(streamview, writeStream, 1024 * 50);
}
else
{
throw new Exception("找不到页面:“(相对路径)wwwroot\\" + ViewName + "”,无法显示！");
}
}
