此问题可能与以下代码中的配置有关，请尝试检查以下代码是否正确配置：

1.确保您已经在Startup.cs文件中启用JWT身份验证：

services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme) .AddJwtBearer(options => { options.TokenValidationParameters = new TokenValidationParameters { ValidateIssuerSigningKey = true, IssuerSigningKey = new SymmetricSecurityKey(Encoding.ASCII.GetBytes(Configuration.GetSection("JwtKey").Value)), ValidateIssuer = false, ValidateAudience = false }; });

2.确保您已经正确配置身份验证，例如在Controller中使用[Authorize]特性：

[Authorize] [ApiController] [Route("api/[controller]")] public class MyController : ControllerBase { // Your API actions go here }

3. 如果您的Jwt身份验证配置存在问题，请检查Jwt内部标头属性是否正确配置：

public static void AddJwtBearerAuthentication(this IServiceCollection services, IConfiguration configuration) { var jwtSettingsSection = configuration.GetSection("JwtSettings");

services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
    .AddJwtBearer(options =>
    {
        options.TokenValidationParameters = new TokenValidationParameters
        {
            ValidateIssuerSigningKey = true,
            IssuerSigningKey = new SymmetricSecurityKey(Encoding.ASCII.GetBytes(jwtSettingsSection["Secret"])),
            ValidateIssuer = false,
            ValidateAudience = false
        };
    });

}

通过检查并正确配置这些代码段，您应该能够成功解决ASP.NET Core 5.0的JWT验证401代码问题。