• 学习abp-2-ContosoUniversity Abp版


    这里略过理论篇,但需要了解abp分层,对于小项目来说abp分层有点复杂,这里只是演示,个别地方没有完全按照ddd理论去写,后期我将会完善。

    1. 创建ContosoUniversity相关功能的菜单

    在vs2019中,按快捷键“ctrl+,”输入navigationprovider,会出现ContosoAbpNavigationProvider类,这个类中存放了整个系统的菜单:

    它位于ContosoAbp.Web.MVC项目的Startup文件夹中:

    菜单的定义为MenuItemDefinition,第一个参数为菜单项,这个在cshtml中使用到,以便切换到该页面时,该菜单项处于选中状态,第二个参数为菜单名称,为多语言配置,这里只配置中英文,需要找到ContosoAbp.xml和ContosoAbp-zh-Hans.xml分别配置菜单名称,第三个参数为url,可以为相对地址,也可以为外部地址,第四个参数为图标,第五个参数为页面权限;这里暂时没有配置icon和权限; SetNavigation方法中添加菜单,修改如下:

     public override void SetNavigation(INavigationProviderContext context)
            {
                context.Manager.MainMenu
                    .AddItem(
                        new MenuItemDefinition(
                            PageNames.Home,
                            L("HomePage"),
                            url: "",
                            icon: "home",
                            requiresAuthentication: true
                        )
                    ).AddItem(
                        new MenuItemDefinition(
                            PageNames.Contoso,
                            L("ContosoUniversity"),
                            url: "",
                            icon: "business"
                        ).AddItem(
                                new MenuItemDefinition(
                                    PageNames.CUStudent,
                                    L("CUStudent"),
                                    url: "Student"
                                )
                            ).AddItem(
                                new MenuItemDefinition(
                                    PageNames.CUCourse,
                                    L("CUCourse"),
                                    url: "Course"
                                )
                            ).AddItem(
                                new MenuItemDefinition(
                                    PageNames.CUInstructor,
                                    L("CUInstructor"),
                                    url: "Instructor"
                                )
                            ).AddItem(
                                new MenuItemDefinition(
                                    PageNames.CUDepartment,
                                    L("CUDepartment"),
                                    url: "Department"
                                )
                            )
                    ).AddItem(
                        new MenuItemDefinition(
                            PageNames.Tenants,
                            L("Tenants"),
                            url: "Tenants",
                            icon: "business",
                            requiredPermissionName: PermissionNames.Pages_Tenants
                        )
                    ).AddItem(
                        new MenuItemDefinition(
                            PageNames.Users,
                            L("Users"),
                            url: "Users",
                            icon: "people",
                            requiredPermissionName: PermissionNames.Pages_Users
                        )
                    ).AddItem(
                        new MenuItemDefinition(
                            PageNames.Roles,
                            L("Roles"),
                            url: "Roles",
                            icon: "local_offer",
                            requiredPermissionName: PermissionNames.Pages_Roles
                        )
                    )
                    .AddItem(
                        new MenuItemDefinition(
                            PageNames.About,
                            L("About"),
                            url: "About",
                            icon: "info"
                        )
                    ).AddItem( // Menu items below is just for demonstration!
                        new MenuItemDefinition(
                            "MultiLevelMenu",
                            L("MultiLevelMenu"),
                            icon: "menu"
                        ).AddItem(
                            new MenuItemDefinition(
                                "AspNetBoilerplate",
                                new FixedLocalizableString("ASP.NET Boilerplate")
                            ).AddItem(
                                new MenuItemDefinition(
                                    "AspNetBoilerplateHome",
                                    new FixedLocalizableString("Home"),
                                    url: "https://aspnetboilerplate.com?ref=abptmpl"
                                )
                            ).AddItem(
                                new MenuItemDefinition(
                                    "AspNetBoilerplateTemplates",
                                    new FixedLocalizableString("Templates"),
                                    url: "https://aspnetboilerplate.com/Templates?ref=abptmpl"
                                )
                            ).AddItem(
                                new MenuItemDefinition(
                                    "AspNetBoilerplateSamples",
                                    new FixedLocalizableString("Samples"),
                                    url: "https://aspnetboilerplate.com/Samples?ref=abptmpl"
                                )
                            ).AddItem(
                                new MenuItemDefinition(
                                    "AspNetBoilerplateDocuments",
                                    new FixedLocalizableString("Documents"),
                                    url: "https://aspnetboilerplate.com/Pages/Documents?ref=abptmpl"
                                )
                            )
                        ).AddItem(
                            new MenuItemDefinition(
                                "AspNetZero",
                                new FixedLocalizableString("ASP.NET Zero")
                            ).AddItem(
                                new MenuItemDefinition(
                                    "AspNetZeroHome",
                                    new FixedLocalizableString("Home"),
                                    url: "https://aspnetzero.com?ref=abptmpl"
                                )
                            ).AddItem(
                                new MenuItemDefinition(
                                    "AspNetZeroDescription",
                                    new FixedLocalizableString("Description"),
                                    url: "https://aspnetzero.com/?ref=abptmpl#description"
                                )
                            ).AddItem(
                                new MenuItemDefinition(
                                    "AspNetZeroFeatures",
                                    new FixedLocalizableString("Features"),
                                    url: "https://aspnetzero.com/?ref=abptmpl#features"
                                )
                            ).AddItem(
                                new MenuItemDefinition(
                                    "AspNetZeroPricing",
                                    new FixedLocalizableString("Pricing"),
                                    url: "https://aspnetzero.com/?ref=abptmpl#pricing"
                                )
                            ).AddItem(
                                new MenuItemDefinition(
                                    "AspNetZeroFaq",
                                    new FixedLocalizableString("Faq"),
                                    url: "https://aspnetzero.com/Faq?ref=abptmpl"
                                )
                            ).AddItem(
                                new MenuItemDefinition(
                                    "AspNetZeroDocuments",
                                    new FixedLocalizableString("Documents"),
                                    url: "https://aspnetzero.com/Documents?ref=abptmpl"
                                )
                            )
                        )
                    );
            }
    
            private static ILocalizableString L(string name)
            {
                return new LocalizableString(name, ContosoAbpConsts.LocalizationSourceName);
            }
        }

     菜单文字配置:

     

     2. 创建实体

    创建实体是在ContosoAbp.Core项目里,这里先创建Student,Enrollment和Course实体;

    3. 在数据库上下文中添加实体对应的数据集

    abp强大的地方在于,它虽然提供了仓储模式和工作单元模式,但你依然可以选择最原始的Context用最原始的方法。

    数据库上下文定义在ContosoAbp.EntityFrameworkCore项目的EntityFrameworkCore文件夹下,修改如下:

    4.添加种子数据

    添加初始化数据在ContosoAbp.EntityFrameworkCore项目下的 Seed的文件夹下,这里在Host(租主)文件夹下新建类:DefaultContosoCreator.cs,在这里模仿其他类,添加初始化数据,这里要去除context.SaveChanges();因为后面会统一保存数据,之后在InitialHostDbBuilder.cs添加 new DefaultSettingsCreator(_context).Create();

     5. 数据迁移

    在程序包管理控制台中执行命令:

    add-migration InitialContosoEntities

    再执行:update-database;

    运行项目,当成功显示界面后,初始化数据会自动写入数据库。

    下一节:创建学生列表,并分页

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  • 原文地址:https://www.cnblogs.com/AlexanderZhao/p/12878867.html
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