asp.net-core - 如何在 asp.net 核心 MVC Controller 中使用 ReadAsStringAsync？

Question

如何在 asp.net 核心 MVC Controller 中使用 ReadAsStringAsync？
Microsoft.AspNetCore.Mvc.Request 没有 Content 属性。有没有替代方法？谢谢!

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using AuthLibrary;
using System.Net;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Web;
using System.Web.Http;
using System.Threading.Tasks;

[Microsoft.AspNetCore.Mvc.Route("TestAPI")]
public class TestController : Controller
{

    [Microsoft.AspNetCore.Mvc.HttpPost]
    [AllowAnonymous]
    [Microsoft.AspNetCore.Mvc.Route("Start")]
      public async Task<HttpResponseMessage> Start()
    {
        string req = await this.Request.Content.ReadAsStringAsync();

        ////

    }
}

Answer 1

对于 Asp.Net Core MVC，您可以使用 request.Body 访问请求内容。 .

这是一个扩展:

public static class HttpRequestExtensions
{

    /// <summary>
    /// Retrieve the raw body as a string from the Request.Body stream
    /// </summary>
    /// <param name="request">Request instance to apply to</param>
    /// <param name="encoding">Optional - Encoding, defaults to UTF8</param>
    /// <returns></returns>
    public static async Task<string> GetRawBodyStringAsync(this HttpRequest request, Encoding encoding = null)
    {
        if (encoding == null)
            encoding = Encoding.UTF8;

        using (StreamReader reader = new StreamReader(request.Body, encoding))
            return await reader.ReadToEndAsync();
    }

    /// <summary>
    /// Retrieves the raw body as a byte array from the Request.Body stream
    /// </summary>
    /// <param name="request"></param>
    /// <returns></returns>
    public static async Task<byte[]> GetRawBodyBytesAsync(this HttpRequest request)
    {
        using (var ms = new MemoryStream(2048))
        {
            await request.Body.CopyToAsync(ms);
            return ms.ToArray();
        }
    }
}

利用:

public async Task<string> ReadStringDataManual()
{
    return await Request.GetRawBodyStringAsync();
}

引用: Accepting Raw Request Body Content in ASP.NET Core API Controllers