ASP.net MVC5 Code First填充测试数据到数据库

问题的产生

　　 最近在看Adam Freeman的“Pro ASP.NET MVC5”，于是在工作机上面搭建了相应的运行环境，但是在自己的机器上面只有代码，没有数据库。记得在code first中可以新建数据库并且填充数据，这样就生成数据库可以方便测试。

准备工作

数据库上下文

 public class EFDbContext: DbContext
     {
        public DbSet<Product> Products { get; set; }
     }

web.config 需要指定数据库的链接字符串

 <connectionStrings>
    <add name="EFDbContext" connectionString="Data Source=.\mysql;Initial Catalog=SportsStore;Integrated Security=True;User ID=sa;Password=123123" providerName="System.Data.SqlClient" />
  </connectionStrings>

Nuget 控制台

enable-migrations命令将在项目中创建一个迁移文件夹。同时文件夹中包含一个Configuration.cs文件，你可以编辑该文件来配置迁移。

 using System.Collections.Generic;
 using SportsStore.Domain.Entities;

 namespace SportsStore.Domain.Migrations
 {
     using System;
     using System.Data.Entity;
     using System.Data.Entity.Migrations;
     using System.Linq;

     internal sealed class Configuration : DbMigrationsConfiguration<SportsStore.Domain.Concrete.EFDbContext>
     {
         public Configuration()
         {
             AutomaticMigrationsEnabled = false;
         }

         protected override void Seed(SportsStore.Domain.Concrete.EFDbContext context)
         {
             var products = new List<Product>
             {
                 new Product
                 {
                     Name = "Kayak",
                     Description = "A boat for one person",
                     Category = "Watersports",
                     Price = 275m
                 },

                 new Product
                 {
                     Name = "Lifejacket",
                     Description = "protective and fashinonable",
                     Category = "Watersports",
                     Price = 48.95m
                 },

                 new Product {Name = "Soccer Ball", Description = "FIFA", Category = "Soccer", Price = 19.50m},

                 new Product
                 {
                     Name = "Corner Flags",
                     Description = "Give u playing field",
                     Category = "Soccer",
                     Price = 34.95m
                 },

                 new Product
                 {
                     Name = "Stadium",
                     Description = "Flat-Packed,35,000-seat stadium",
                     Category = "Soccer",
                     Price = 79500.00m
                 },

                 new Product
                 {
                     Name = "Thinking Cap",
                     Description = "Improve ur brain efficiency by 75%",
                     Category = "Chess",
                     Price = 16.00m
                 },

                 new Product
                 {
                     Name = "Unsteady Chair",
                     Description = "Secretly give your opponent a disadvantage",
                     Category = "Chess",
                     Price = 29.95m
                 },

                 new Product {Name = "Human Chess Board", Description = "A fun game", Category = "Chess", Price = 75.00m},

                 new Product
                 {
                     Name = "Bling-Bing King",
                     Description = "Gold-plated,diamond-studded King",
                     Category = "Chess",
                     Price = 1200.00m
                 }
             };
             products.ForEach(m => context.Products.Add(m));
             base.Seed(context);

         }
     }
 }

add-migration InitialCreate 

当您执行add-migration命令时，迁移将生成代码用来创建数据库。

update-database
update-database命令运行Up方法来创建数据库，然后运行Seed方法来填充数据库。

运行成功，数据库就会有对应的数据插入。

参考文献：

1.Getting Started with Entity Framework 6 Code First using MVC 5 https://www.asp.net/mvc/overview/getting-started/getting-started-with-ef-using-mvc/creating-an-entity-framework-data-model-for-an-asp-net-mvc-application2.Pro ASP.NET MVC5. 作者 Adam Freeman