Asp中是否有与“HttpContext.Response.Write”等效的。Net Core 2?

静态和异步方法 HttpResponseWritingExtensions.WriteAsync 是目前实现这一目标的首选方式。

目前,您可以在部件中找到它 Microsoft.AspNetCore.Http.Abstractions

using Microsoft.AspNetCore.Http;

[HttpGet("test")]
public async Task GetTest()
    => await HttpResponseWritingExtensions.WriteAsync(this.Response, "Hello World");

更新2022-02-23

跟这个话题有点关系。使用ASP。NET Core 6.0您可以使用以下最低API编写简单的响应:

var builder = WebApplication.CreateBuilder(args);
var app = builder.Build();
app.MapGet("/", () => "Hello World");
app.Run();

Source: MSDN

回答身体Write将字节数组作为参数。

public void OnGet() {
    var text = "<h1>Hello, Response!</h1>";
    byte[] data = System.Text.Encoding.UTF8.GetBytes(text);
    Response.Body.Write(data, 0, data.Length);
}

或异步版本:

public async Task OnGetAsync() {
    var text = "<h1>Hello, Async Response!</h1>";
    byte[] data = System.Text.Encoding.UTF8.GetBytes(text);
    await Response.Body.WriteAsync(data, 0, data.Length);
}

你可以试试这样的

在的自定义实现中 无法启动。配置(IApplicationBuilder应用程序)

application.Use(async (context, next) =>    
{
    using (var customStream = new MemoryStream())
    {
        // Create a backup of the original response stream
        var backup = context.Response.Body;

        // Assign readable/writeable stream
        context.Response.Body = customStream;

        await next();

        // Restore the response stream
        context.Response.Body = backup;

        // Move to start and read response content
        customStream.Seek(0, SeekOrigin.Begin);
        var content = new StreamReader(customStream).ReadToEnd();

        // Write custom content to response
        await context.Response.WriteAsync(content);
    }
});

而不是你的习惯 结果过滤属性

public class MyAttribute : ResultFilterAttribute
{
    public override void OnResultExecuted(ResultExecutedContext context)
    {
        try
        {
            var bytes = Encoding.UTF8.GetBytes("Foo Bar");

            // Seek to end
            context.HttpContext.Response.Body.Seek(context.HttpContext.Response.Body.Length, SeekOrigin.Begin);
            context.HttpContext.Response.Body.Write(bytes, 0, bytes.Length);
        }
        catch
        {
            // ignored
        }

        base.OnResultExecuted(context);
    }
}

结果呢

希望这有助于走上正确的道路。

我的代码没有为异步执行做好准备,因此我使用了:

Response.WriteAsync("text").Wait();

.Wait()使执行等待异步方法完成执行以继续。

我不知道表演是否是最好的,但已经比。Net Framework解决方案

.等待(): https://docs.microsoft.com/pt-br/dotnet/api/system.io.stream.writeasync?view=net-6.0

.WriteAsync(): https://docs.microsoft.com/pt-br/dotnet/api/system.threading.tasks.task.wait?view=net-6.0