获取从请求到数组WebAPi的值

本文关键字：WebAPi 的值 数组 请求 获取 | 更新日期: 2023-09-27 18:15:36

我是Web APi的新手，我有基于令牌的授权和用户角色的应用程序。我有控制器，必须得到角色'用户'的所有用户。控制器看起来像:

public class UsersController : ApiController
            {
                public IEnumerable<ApplicationUser> GetUsersRoleUser ()
                {
                    var context = new ApplicationDbContext();
                    var users = context.Users.Where(x => x.Roles.Select(y => y.RoleId).Contains("601fd2b9-4a7f-4063-a831-e15978f05657")).ToList();
            return users;
    }}

很好，我得到答案:

[{"Claims":[],
"Logins":[],
"Roles":[{"UserId":"2d9e98d4-2203-4f68-b8eb-6cac3c94cbd7","RoleId":"601fd2b9-4a7f-4063-a831-e15978f05657"}],
"Email":null,
"EmailConfirmed":false,
"PasswordHash":"AGMPpGJcGtD5",
"SecurityStamp":"ef896d77-e82a-4018-9023-1bf2e967e7bc",
"PhoneNumber":"+375445907729",
"PhoneNumberConfirmed":false,
"TwoFactorEnabled":false,
"LockoutEndDateUtc":null,
"LockoutEnabled":false,
"AccessFailedCount":0,
"Id":"2d9e98d4-2203-4f68-b8eb-6cac3c94cbd7",
"UserName":"sanya"},
{and another}]

我怎么能得到数组值只有"UserName"?

获取从请求到数组WebAPi的值

您需要使用DTO设计模式。在您的例子中，匿名类型应该足够了:

context.Users
            .Where(x => x.Roles.Select(y => y.RoleId).Contains("601fd2b9-4a7f-4063-a831-e15978f05657"))
            // Project each user into a DTO which just 
            // UserName property...
            .Select(x => new { UserName = x.UserName })
            .ToList()
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