ASP.Net Core读取Http请求正文的一种方法
由于ASP.Net Core在3.0版本中禁用了同步读取Request.Body,所以会引发异常,网上大多数教程都是如何将禁用同步读取流的选项重新启用,由于微软的官方文档中已经警告了同步读取Request.Body会引发内存泄漏,所以需要用推荐的方式读取Request.Body,也就是使用PipeReader来读取,下面封装了一个方法和一个示例供参考:
/// <summary> /// 获取请求正文 /// </summary> /// <param name="request"></param> /// <param name="token"></param> /// <returns></returns> [NonAction] private async Task<string> GetRequestBodyAsync(HttpRequest request, CancellationToken token) {
if (!request.Body.CanSeek)
{
request.EnableBuffering();
}
request.Body.Seek(0, SeekOrigin.Begin);
using StreamReader reader = new StreamReader(request.Body, Encoding.UTF8);
var body = await reader.ReadToEndAsync(token);
request.Body.Seek(0, SeekOrigin.Begin);
return body;
}
使用示例:
[HttpPost] public async Task<IActionResult> TestAction() { string content = await GetRequestBodyAsync( Request, HttpContext.RequestAborted); Console.WriteLine("Http Request Body: {0}", content); return Ok(); }