Identity Server 4：使用 EntityFramework Core 进行配置和操作数据答案

【问题标题】：Identity Server 4: Using EntityFramework Core for configuration and operational dataIdentity Server 4：使用 EntityFramework Core 进行配置和操作数据
【发布时间】：2020-07-31 21:56:03
【问题描述】：

按照本教程https://docs.identityserver.io/en/release/quickstarts/8_entity_framework.html，当我运行程序执行迁移时，数据库和所有表都可以创建，但它遇到了这个错误：

SqlException：无法将值 NULL 插入列 'RequireRequestObject'，表'xxx.dbo.Clients'；列不允许空值。插入失败。

这是生成的迁移脚本：

 migrationBuilder.CreateTable(
                name: "Clients",
                columns: table => new
                {
                    Id = table.Column<int>(nullable: false)
                        .Annotation("SqlServer:Identity", "1, 1"),
                    Enabled = table.Column<bool>(nullable: false),
                    ClientId = table.Column<string>(maxLength: 200, nullable: false),
                    ProtocolType = table.Column<string>(maxLength: 200, nullable: false),
                    RequireClientSecret = table.Column<bool>(nullable: false),
                    ClientName = table.Column<string>(maxLength: 200, nullable: true),
                    Description = table.Column<string>(maxLength: 1000, nullable: true),
                    ClientUri = table.Column<string>(maxLength: 2000, nullable: true),
                    LogoUri = table.Column<string>(maxLength: 2000, nullable: true),
                    RequireConsent = table.Column<bool>(nullable: false),
                    AllowRememberConsent = table.Column<bool>(nullable: false),
                    AlwaysIncludeUserClaimsInIdToken = table.Column<bool>(nullable: false),
                    RequirePkce = table.Column<bool>(nullable: false),
                    AllowPlainTextPkce = table.Column<bool>(nullable: false),
                    RequireRequestObject = table.Column<bool>(nullable: false),
                    AllowAccessTokensViaBrowser = table.Column<bool>(nullable: false),
                    FrontChannelLogoutUri = table.Column<string>(maxLength: 2000, nullable: true),
                    FrontChannelLogoutSessionRequired = table.Column<bool>(nullable: false),
                    BackChannelLogoutUri = table.Column<string>(maxLength: 2000, nullable: true),
                    BackChannelLogoutSessionRequired = table.Column<bool>(nullable: false),
                    AllowOfflineAccess = table.Column<bool>(nullable: false),
                    IdentityTokenLifetime = table.Column<int>(nullable: false),
                    AllowedIdentityTokenSigningAlgorithms = table.Column<string>(maxLength: 100, nullable: true),
                    AccessTokenLifetime = table.Column<int>(nullable: false),
                    AuthorizationCodeLifetime = table.Column<int>(nullable: false),
                    ConsentLifetime = table.Column<int>(nullable: true),
                    AbsoluteRefreshTokenLifetime = table.Column<int>(nullable: false),
                    SlidingRefreshTokenLifetime = table.Column<int>(nullable: false),
                    RefreshTokenUsage = table.Column<int>(nullable: false),
                    UpdateAccessTokenClaimsOnRefresh = table.Column<bool>(nullable: false),
                    RefreshTokenExpiration = table.Column<int>(nullable: false),
                    AccessTokenType = table.Column<int>(nullable: false),
                    EnableLocalLogin = table.Column<bool>(nullable: false),
                    IncludeJwtId = table.Column<bool>(nullable: false),
                    AlwaysSendClientClaims = table.Column<bool>(nullable: false),
                    ClientClaimsPrefix = table.Column<string>(maxLength: 200, nullable: true),
                    PairWiseSubjectSalt = table.Column<string>(maxLength: 200, nullable: true),
                    Created = table.Column<DateTime>(nullable: false),
                    Updated = table.Column<DateTime>(nullable: true),
                    LastAccessed = table.Column<DateTime>(nullable: true),
                    UserSsoLifetime = table.Column<int>(nullable: true),
                    UserCodeType = table.Column<string>(maxLength: 100, nullable: true),
                    DeviceCodeLifetime = table.Column<int>(nullable: false),
                    NonEditable = table.Column<bool>(nullable: false)
                },
                constraints: table =>
                {
                    table.PrimaryKey("PK_Clients", x => x.Id);
                });

【问题讨论】：

标签： identityserver4

【解决方案1】：

该错误表明迁移尝试将一些数据插入到您的数据库中，而问题中的代码是关于创建表的，该操作不应导致该错误。

所以我认为问题出在您的代码中，该代码使用客户端为数据库播种，并且 RequireRequestObject 标志未设置为 false 或 true。

RequireRequestObject 也是 IdentityServer4 的 v4.0x 中的一个新字段，也许你在某个地方有一些版本不匹配？或者种子数据的代码没有设置这个字段。

因此，要修复它，只需在数据库种子代码或生成插入到 Clients 表的代码中设置 RequireRequestObject 字段。

【讨论】：