asp.net core中2次读取Request.Body的问题
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悬赏园豆：20
[已解决问题]
解决于 2016-11-26 12:56
代码如下：
using (StreamWriter writer = process.StandardInput) { Request.Body.CopyTo(writer.BaseStream); if(_env.IsDevelopment()) { Console.WriteLine("Request.Body:"); Request.Body.Position = 0; Request.Body.CopyTo(Console.OpenStandardOutput()); } }
在执行至 Request.Body.Position=0 时出错：
System.NotSupportedException: Specified method is not supported. at Microsoft.AspNetCore.Server.Kestrel.Internal.Http.FrameRequestStream.set_Position(Int64 value)
最佳答案
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借助MemoryStream解决了这个问题，先将Request.Body复制到MemoryStream，然后从MemoryStream读取。
using (var buffer = new MemoryStream()) { Request.Body.CopyTo(buffer); buffer.Position = 0; buffer.CopyTo(writer.BaseStream); Console.WriteLine("Request.Body:"); buffer.Position = 0; buffer.CopyTo(Console.OpenStandardOutput()); }
ASP.NET Core 2.0 中已经针对这个问题提供了解决方法 —— Request.EnableRewind(); ，详见 ASP.NET Core 中读取 Request.Body 的正确姿势
其他回答(2)
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Response).Body).CanRead=false 很郁闷 请教一下这个怎么处理 一直是 不能读 OnActionExecuting OnActionExecuted都是这样
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if (httpContent.Request.Body.CanRead)
{
var memery = new System.IO.MemoryStream();
httpContent.Request.Body.CopyTo(memery);
memery.Position = 0;
log.Content = new System.IO.StreamReader(memery, System.Text.UTF8Encoding.UTF8).ReadToEnd();
memery.Position = 0;
httpContent.Request.Body = memery;
}
