我對 ASP.NET Core 很陌生。我想使用 Entity Framework Core 和 ASP.NET Identity 創建 ASP.NET Core 2.2 WebAPI。另外，我想使用 JWT 來通過令牌保護對該 WebAPI 的訪問。我已成功將用戶插入數據庫并從 API 取回令牌，并且令牌身份驗證正在運行。但是，我還想軟刪除數據庫記錄并跟蹤誰刪除/更新/添加了記錄。其測試表是“國家”，其中字段只有Title和Description。到目前為止，我已經把互聯網顛倒了，但沒有幫助:(我嘗試過的最后一件事是（userId 是null）：在startup.cs中：services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();在我的 AppDbContext.cs 中public class AppDbContext : IdentityDbContext<AppUser>{ public AppDbContext(DbContextOptions options) : base(options) { } public DbSet<AppUser> AppUsers { get; set; } public DbSet<Country> Countries { get; set; } // just for testing protected override void OnModelCreating(ModelBuilder builder) { base.OnModelCreating(builder); // TODO - IGNORE THIS //builder.Entity<AppUser>().Property<bool>("IsDeleted"); //builder.Entity<AppUser>().HasQueryFilter(m => EF.Property<bool>(m, "IsDeleted") == false); } public override async Task<int> SaveChangesAsync(CancellationToken cancellationToken = default(CancellationToken)) { CheckBeforeSaving(); return (await base.SaveChangesAsync(true, cancellationToken).ConfigureAwait(false)); } private void CheckBeforeSaving() { var httpContextAccessor = this.GetService<IHttpContextAccessor>(); var userId = httpContextAccessor?.HttpContext.User.FindFirstValue(ClaimTypes.NameIdentifier); foreach (var entry in ChangeTracker.Entries()) { switch (entry.State) { case EntityState.Detached: break; case EntityState.Unchanged: break; case EntityState.Deleted: entry.State = EntityState.Modified; entry.CurrentValues["IsDeleted"] = true; entry.CurrentValues["DeletedBy"] = userId; entry.CurrentValues["Deleted"] = DateTime.Now; break; } } }}}
3 回答
狐的傳說
TA貢獻1804條經驗 獲得超3個贊
嘗試直接IHttpContextAccessor 注入ApplicationDbContext：
public class ApplicationDbContext : IdentityDbContext<AppUser>
{
private readonly IHttpContextAccessor _httpContextAccessor;
public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options, IHttpContextAccessor httpContextAccessor)
: base(options)
{
_httpContextAccessor= httpContextAccessor;
}
//other methods
private void CheckBeforeSaving()
{
var userId = _httpContextAccessor?.HttpContext.User.FindFirstValue(ClaimTypes.NameIdentifier);
//...
}
}
神不在的星期二
TA貢獻1963條經驗 獲得超6個贊
這是我在 .net core 2.2 中獲取用戶 ID 的方法
首先，您需要在 Startup.cs 中注冊
services.AddSingleton<IActionContextAccessor, ActionContextAccessor>();
然后為您服務
private readonly IHttpContextAccessor _httpContextAccessor;
public UserService(
IHttpContextAccessor httpContextAccessor)
{
}
var currentUserGuid = _httpContextAccessor?.HttpContext?.User?.FindFirst(UserClaimsKey.Sub)?.Value;
白板的微信
TA貢獻1883條經驗 獲得超3個贊
private async Task<ApplicationUser> GetUserDetailsAnsyc()
{
return await userManager.GetUserAnsync(HttpContext.User);
}
var user = await GetUserDetailsAnsyc();
Console.WriteLine(user.Id.ToString());
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