1、在data里面新建个Entity文件用于存放表映射，设计数据库，执行如下语句

Scaffold-DbContext -Force "server=.;user=sunyong;password=1qaz!QAZ;database=hr;" Microsoft.EntityFrameworkCore.SqlServer -OutputDir /Entity

将在Entity文件下面自动创建实体，可直接使用

创建个邮件类用于接收配置的邮件信息

public class email
{
　　public string token { get; set; }
　　public string sendname { get; set; }
　　public string sendmail { get; set; }
　　public string acceptmail { get; set; }
}

（实体类太多，最后会放到git上面）

2、在service创建CurrrentUser/CurrentUsers类，简单记录登录着信息

public class CurrentUsers
{
　　private static IHttpContextAccessor _httpContextAccessor;
　　private static ISession _session => _httpContextAccessor.HttpContext.Session;
　　public static void Configure(IHttpContextAccessor httpContextAccessor) {
　　_httpContextAccessor = httpContextAccessor;
}
/// <summary>
///用户编号 
/// </summary>
public static int UserId { get; set; }
/// <summary>
///用户名 
/// </summary>
public static string UserName { get; set; }
}

3、在service下新增Filters文件夹，Filters下面创建AdminOnlyFilter，MustLoginFilter类

public class AdminOnlyFilter : IPageFilter, IActionFilter
{
　　public void OnActionExecuted(ActionExecutedContext context) { }
　　public void OnActionExecuting(ActionExecutingContext context) { }
　　public void OnPageHandlerExecuted(PageHandlerExecutedContext context) { }
　　public void OnPageHandlerExecuting(PageHandlerExecutingContext context) { }
　　public void OnPageHandlerSelected(PageHandlerSelectedContext context) { }
}

public class MustLoginFilter : IPageFilter, IActionFilter
{
　　public void OnActionExecuted(ActionExecutedContext context) { }
　　public void OnActionExecuting(ActionExecutingContext context) { }
　　public void OnPageHandlerExecuted(PageHandlerExecutedContext context) { }
　　public void OnPageHandlerExecuting(PageHandlerExecutingContext context) { }
　　public void OnPageHandlerSelected(PageHandlerSelectedContext context) { }
}