ASP.Net MVC 核心：预渲染构建过程未在 50 秒的超时期限内完成

Question

我有 ASP.Net MVC 核心 (2.1.0)，带有 SPA 预渲染。

我的 JWT 令牌中间件出现超时，在 "await next()".

行

当我将 @angular/cli 更新到最新版本 (v6.0.8) 时，我开始遇到错误，其中还添加了 @angular-devkit/build-angular (v0.6.8)。

当 运行 "ng build" 时我没有收到任何错误。

public static class JwtTokenMiddleware
{
    public static IApplicationBuilder UseJwtTokenMiddleware(this IApplicationBuilder app, string schema = JwtBearerDefaults.AuthenticationScheme)
    {
        return app.Use(async (ctx, next) =>
        {
            if (ctx.User.Identity?.IsAuthenticated != true)
            {
                var result = await ctx.AuthenticateAsync(schema);
                if (result.Succeeded && result.Principal != null)
                {
                    ctx.User = result.Principal;
                }
            }

            await next();
        });
    }
}

堆栈跟踪：

System.TimeoutException: The prerendering build process did not complete within the timeout period of 50 seconds. Check the log output for error information. at Microsoft.AspNetCore.SpaServices.Extensions.Util.TaskTimeoutExtensions.WithTimeout(Task task, TimeSpan timeoutDelay, String message) at Microsoft.AspNetCore.Builder.SpaPrerenderingExtensions.<>c__DisplayClass0_0.<b__1>d.MoveNext() --- End of stack trace from previous location where exception was thrown --- at Microsoft.AspNetCore.Builder.RouterMiddleware.Invoke(HttpContext httpContext) at Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke(HttpContext context) at MyProject.JwtTokenMiddleware.<>c__DisplayClass0_0.<b__0>d.MoveNext() in /MyProject/UseJwtTokenMiddleware.cs:line 23 --- End of stack trace from previous location where exception was thrown --- at Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)

更新：

angular-cli 升级替换了一些设置。原始 .angular-cli.json 文件具有服务器端呈现文件夹的设置。升级重写的新 angular.json 文件消失了。这就是 ASP.Net 找不到它的原因。我现在必须将 SSR 设置放回 angular.json 文件中。

更新 2：

https://angular.io/guide/universal#angular-cli-configuration 的文档概述了要放入 angular.json 的内容。

Answer 1

在 startup.cs 文件中，转到代码的 IsDevelopment 部分并添加以下行：

if (env.IsDevelopment())
{
    //Time limit extended
    spa.Options.StartupTimeout = new TimeSpan(days: 0, hours: 0, minutes: 1, seconds: 30);
    //Time limit extended
    spa.UseAngularCliServer(npmScript: "start");
}

参考：https://github.com/aspnet/JavaScriptServices/issues/1512

Answer 2

确保 SSL 标记在 angular.json 中不是真的，如果你已经添加了它。