Authentication AuthorizationHandlerContext中的声明在HandleRequirementAsync中为空

我有一个带有POST方法的Web API，如下所示：

[HttpPut]
[Authorize("FeaturePolicy")]
public IActionResult Put()
{             
  return Ok();
}

public void ConfigureServices(IServiceCollection services)
{
   services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
   services.AddAuthentications();
   services.AddAuthorization("FeaturePolicy", "featureId");
} 

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
  if (env.IsDevelopment())
  {
    app.UseDeveloperExceptionPage();
  }
  else
  {
        // The default HSTS value is 30 days. You may want to change this for production scenarios, see   https://aka.ms/aspnetcore-hsts.
    app.UseHsts();
  }        
    app.UseHttpsRedirection();
    app.UseMvc();
    app.UseAuthentication();
}

启动过程如下所示：

[HttpPut]
[Authorize("FeaturePolicy")]
public IActionResult Put()
{             
  return Ok();
}

public void ConfigureServices(IServiceCollection services)
{
   services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
   services.AddAuthentications();
   services.AddAuthorization("FeaturePolicy", "featureId");
} 

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
  if (env.IsDevelopment())
  {
    app.UseDeveloperExceptionPage();
  }
  else
  {
        // The default HSTS value is 30 days. You may want to change this for production scenarios, see   https://aka.ms/aspnetcore-hsts.
    app.UseHsts();
  }        
    app.UseHttpsRedirection();
    app.UseMvc();
    app.UseAuthentication();
}

我从邮递员处发送JWT令牌持有人作为邮件头。当我尝试从HandleRequirementAsync处理程序访问声明时，声明为空。处理程序如下所示：

protected override Task HandleRequirementAsync(AuthorizationHandlerContext context, 
                                                       FeatureRequirement requirement)
{
  var identity = (ClaimsIdentity)context.User.Identity;
  IEnumerable<Claim> claims = identity.Claims;
  context.Succeed(requirement);
}

protected override Task HandleRequirementAsync（AuthorizationHandlerContext上下文，
特性（要求）
{
var identity=（ClaimsIdentity）context.User.identity；
IEnumerable claims=identity.claims；
成功（要求）；
}

---

我做错什么了？请帮忙！谢谢。

如果您没有成功获得身份验证，那么您的上下文中就不会有声明。我的意思是，你的问题是这个请求无法被验证。您的请求无权执行