diff --git a/ZR.Admin.WebApi/Extensions/HttpContextExtension.cs b/ZR.Admin.WebApi/Extensions/HttpContextExtension.cs
index 56acee2..a8caab5 100644
--- a/ZR.Admin.WebApi/Extensions/HttpContextExtension.cs
+++ b/ZR.Admin.WebApi/Extensions/HttpContextExtension.cs
@@ -82,7 +82,7 @@ namespace ZR.Admin.WebApi.Extensions
         /// </summary>
         /// <param name="context"></param>
         /// <returns></returns>
-        public static string GetName(this HttpContext context)
+        public static string? GetName(this HttpContext context)
         {
             var uid = context.User?.Identity?.Name;
 
diff --git a/ZR.Admin.WebApi/Hubs/MessageHub.cs b/ZR.Admin.WebApi/Hubs/MessageHub.cs
index b48ff74..e06644e 100644
--- a/ZR.Admin.WebApi/Hubs/MessageHub.cs
+++ b/ZR.Admin.WebApi/Hubs/MessageHub.cs
@@ -38,7 +38,7 @@ namespace ZR.Admin.WebApi.Hubs
         /// <returns></returns>
         public override Task OnConnectedAsync()
         {
-            var name = Context.User.Identity.Name;
+            var name = HttpContextExtension.GetName(App.HttpContext);// Context.User.Identity.Name;
             var ip = HttpContextExtension.GetClientUserIp(App.HttpContext);
             var ip_info = IpTool.Search(ip);
 
@@ -66,7 +66,7 @@ namespace ZR.Admin.WebApi.Hubs
         /// 连接终止时调用。
         /// </summary>
         /// <returns></returns>
-        public override Task OnDisconnectedAsync(Exception exception)
+        public override Task OnDisconnectedAsync(Exception? exception)
         {
             var user = clientUsers.Where(p => p.ConnnectionId == Context.ConnectionId).FirstOrDefault();
             //判断用户是否存在，否则添加集合
diff --git a/ZR.Admin.WebApi/Program.cs b/ZR.Admin.WebApi/Program.cs
index 529a269..30b1dab 100644
--- a/ZR.Admin.WebApi/Program.cs
+++ b/ZR.Admin.WebApi/Program.cs
@@ -19,13 +19,14 @@ builder.Services.AddEndpointsApiExplorer();
 builder.Services.AddSwaggerGen();
 //注入HttpContextAccessor
 builder.Services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();
+var corsUrls = builder.Configuration["corsUrls"]?.Split(',', StringSplitOptions.RemoveEmptyEntries);
 
 //配置跨域
 builder.Services.AddCors(c =>
 {
     c.AddPolicy("Policy", policy =>
     {
-        policy.WithOrigins(builder.Configuration["corsUrls"].Split(',', StringSplitOptions.RemoveEmptyEntries))
+        policy.WithOrigins(corsUrls == null ? Array.Empty<string>() : corsUrls)
         .AllowAnyHeader()//允许任意头
         .AllowCredentials()//允许cookie
         .AllowAnyMethod();//允许任意方法