Identity Server 4：将 EntityFramework 核心用于配置和操作数据

Question

按照本教程，https://docs.identityserver.io/en/release/quickstarts/8_entity_framework.html，当我运行执行迁移的程序时，可以创建数据库和所有表，但它会遇到此错误：

SqlException: Cannot insert the value NULL into column 'RequireRequestObject', table 'xxx.dbo.Clients'; column does not allow nulls. INSERT fails.

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);
                });

Answer 1

该错误表明迁移尝试将一些数据插入您的数据库，而问题中的代码是关于创建 table 并且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 v4.0x 中的一个新字段，也许你有什么版本不匹配的地方？或者播种数据的代码没有设置这个字段。

因此，要修复它，只需在您的数据库种子代码或生成插入客户端的代码中设置 RequireRequestObject 字段 table。

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