Initial_commit_SecMPS_v2

api_sqlsugar/VolPro.Core/Extensions/Middleware/HttpContextMiddleware.cs

@@ -0,0 +1,58 @@
+using Microsoft.AspNetCore.Http;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Text;
+
+namespace VolPro.Core.Extensions
+{
+    public class HttpContextMiddleware
+    {
+        /// <summary>
+        /// 将流重新
+        /// </summary>
+        public static Func<RequestDelegate, RequestDelegate> contextMiddleware
+        {
+            get
+            {
+                return next => async context =>
+                {
+
+                    var stream = context.Request.Body;
+                    if (stream == Stream.Null || stream.CanSeek)
+                    {
+                        await next(context);
+
+                        return;
+                    }
+                    try
+                    {
+                        //将流拷贝一份出来,调用结束后再将流写回去
+                        using (var buffer = new MemoryStream())
+                        {
+                            // Copy the request stream to the memory stream.
+                            await stream.CopyToAsync(buffer);
+
+                            // Rewind the memory stream.
+                            buffer.Position = 0L;
+
+                            // Replace the request stream by the memory stream.
+                            context.Request.Body = buffer;
+
+                            // Invoke the rest of the pipeline.
+                            await next(context);
+                        }
+                    }
+
+                    finally
+                    {
+                        // Restore the original stream.
+                        context.Request.Body = stream;
+                    }
+
+                };
+
+            }
+        }
+    }
+}