1. 首先，在Startup.cs文件中添加使用身份验证的服务：

services.AddAuthentication(options =>
{
    options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
    options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
    options.DefaultScheme = JwtBearerDefaults.AuthenticationScheme;
}).AddJwtBearer(options =>
{
    options.SaveToken = true;
    options.RequireHttpsMetadata = false;
    options.TokenValidationParameters = new TokenValidationParameters
    {
        ValidIssuer = Configuration["Jwt:Issuer"],
        ValidAudience = Configuration["Jwt:Issuer"],
        IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(Configuration["Jwt:Key"])),
        ClockSkew = TimeSpan.Zero
    };
});

2. 在控制器中注入UserManager和RoleManager服务：

private readonly UserManager _userManager;
private readonly RoleManager _roleManager;

public UsersController(UserManager userManager, RoleManager roleManager)
{
    _userManager = userManager;
    _roleManager = roleManager;
}

3. 在方法中获取所有用户，然后使用UserManager的IsInRole方法来检查用户是否具有特定角色：

[HttpGet("GetUsersWithRole/{roleName}")]
public async Task GetUsersWithRole(string roleName)
{
    var users = await _userManager.Users.ToListAsync();
    var userRoles = new List