using Microsoft.AspNetCore.Http; using System; using System.IO; using System.Collections.Generic; using System.Text; namespace LM.Core.Middleware { public class HttpRequestMiddleware { public static Func Context { get { return next => async context => { //动态标识刷新token(2021.05.01) context.Response.Headers["Access-Control-Expose-Headers"] = "vol_exp"; await next(context); }; } } } }