【发布时间】:2019-01-08 01:24:14
【问题描述】:
我可以在本地托管我的应用程序,它工作正常。我可以毫无问题地通过 AWS 的 VS 向导发布到 Elastic Beanstalk。但是当我尝试访问应用程序时,我收到 500 错误并且没有加载任何内容。我发现的所有内容都引用了将文件从 ClientApp/dist 移动到 wwwroot,但有两件事......
- 1.我没有 dist 文件夹?
2. `public IConfiguration Configuration` 的最后一行将 spa 静态文件的根路径设置为 dist
(原谅我,这是我的第一个 Angular 应用部署。)
Startup.cs
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.AddDbContext<DataContext>(x => x
.UseSqlServer(Configuration.GetConnectionString("DefaultConnection"), b =>
b.MigrationsAssembly(("MyApp.App")))
.ConfigureWarnings(warnings => warnings.Ignore(CoreEventId.IncludeIgnoredWarning)));
services.AddMvc()
.AddJsonOptions(opt =>
{
opt.SerializerSettings.ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore;
})
.SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
services.AddSpaStaticFiles(configuration => { configuration.RootPath = "ClientApp/dist"; });
services.AddTransient<Seed>();
services.AddCors();
services.AddAutoMapper();
services.AddScoped<IAuthRepository, AuthRepository>();
services.AddScoped<IBaseRepository, BaseRepository>();
var key = Encoding.ASCII.GetBytes(Configuration.GetSection("AppSettings:Token").Value);
services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
.AddJwtBearer(options =>
{
options.TokenValidationParameters = new TokenValidationParameters
{
ValidateIssuerSigningKey = true,
IssuerSigningKey = new SymmetricSecurityKey(key),
ValidateIssuer = false,
ValidateAudience = false
};
});
services.AddScoped<LogUserActivity>();
services.AddSpaStaticFiles(configuration =>
{
configuration.RootPath = "ClientApp/dist";
});
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
{
app.UseAuthentication();
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
else
{
app.UseExceptionHandler(builder =>
{
builder.Run(async context =>
{
context.Response.StatusCode = (int)HttpStatusCode.InternalServerError;
var error = context.Features.Get<IExceptionHandlerFeature>();
if (error != null)
{
context.Response.AddApplicationError(error.Error.Message);
await context.Response.WriteAsync(error.Error.Message);
}
});
});
}
app.UseCors(x => x.AllowAnyHeader().AllowAnyMethod().AllowAnyOrigin().AllowCredentials());
app.UseHttpsRedirection();
app.ConfigureSwagger(Assembly.GetExecutingAssembly());
app.UseDefaultFiles();
app.UseStaticFiles();
app.UseSpaStaticFiles();
app.UseMvc(routes =>
{
routes.MapRoute(
name: "default",
template: "{controller}/{action=Index}/{id?}");
});
app.UseSpa(spa =>
{
spa.Options.SourcePath = "ClientApp";
if (env.IsDevelopment())
{
spa.UseProxyToSpaDevelopmentServer("http://localhost:4200");
}
});
}
}
【问题讨论】:
-
500 表示未处理的异常。尝试注释掉
UseExceptionHandler并将呼叫留给UseDeveloperExceptionPage以便您可以看到实际的异常消息。 -
我仍然在浏览器控制台中收到 500 错误。浏览器窗口显示“启动应用程序时发生错误。”
-
我建议检查日志以获取更多信息。我从未使用过豆茎,但我认为它在这里解释:docs.aws.amazon.com/elasticbeanstalk/latest/dg/…
-
@ChristophLütjen,查看日志文件后,我没有看到任何突出的内容。它表明部署和构建成功。但是,它没有提及我对服务器的请求。 (我希望它至少会注意到我提出了一个请求。)
-
dist目录是作为 Angular 构建过程的一部分创建的。您会在 ASP.NET Core 2.1 Angular 模板生成的<projectRoot>/ClientApp/.angular-cli.json文件中找到它。我知道您提到它在本地托管时可以工作,但请确保使用dotnet publish测试部署到一个目录,然后从该目录使用dotnet <dllName>。您可能会获得更多信息。
标签: c# angular amazon-web-services asp.net-core