微軟官方例項 RazorPagesMovie 在 asp.net core 2.1 版本下的實戰
友情提示:
作業系統: MacOS 10.13.5
dotnet core: version 2.1.300
1、執行 dotnet 命令建立RazorPagesMovie專案
dotnet new webapp -o RazorPagesMovie
2、進入 RazorPagesMovie 目錄,執行專案。然後,在瀏覽器中訪問 localhost:5000 來檢視專案執行情況。
cd RazorPagesMovie
dotnet run
當出現
Using launch settings from /Users/zhm/OneDrive/CodeStudy/dotnetcore/RazorPagesMovie/Properties/launchSettings.json...
: Microsoft.AspNetCore.DataProtection.KeyManagement.XmlKeyManager[0]
User profile is available. Using `/Users/zhm/.aspnet/DataProtection-Keys` as key repository; keys will not be encrypted at rest.
Hosting environment: Development
Content root path: /Users/zhm/OneDrive/CodeStudy/dotnetcore/RazorPagesMovie
Now listening on: https://localhost:5001
Now listening on: http://localhost:5000
Application started. Press Ctrl+C to shut down.
的時候,就可在瀏覽器裡瀏覽專案了
3、在專案目錄下新建一個Models目錄,並進入目錄
a、建立實體類檔案Movie.cs,內容如下:
using System;
namespace RazorPagesMovie.Models
{
public class Movie
{
public int ID { get; set; }
public string Title { get; set; }
public DateTime ReleaseDate { get; set; }
public string Genre { get; set; }
public decimal Price { get; set; }
}
}
b、建立資料上下文檔案MovieContext.cs,內容如下:
using Microsoft.EntityFrameworkCore;
namespace RazorPagesMovie.Models
{
public class MovieContext : DbContext
{
public MovieContext(DbContextOptions<MovieContext> options)
: base(options)
{
}
public DbSet<Movie> Movie { get; set; }
}
}
c、開啟appsetting.json檔案,然後在檔案中新增資料庫連線字串
{
"Logging": {
"IncludeScopes": false,
"LogLevel": {
"Default": "Warning"
}
},
"ConnectionStrings": {
"MovieContext": "Data Source=MvcMovie.db"
}
}
4、在Startup.cs檔案中,註冊資料庫上下文
public void ConfigureServices(IServiceCollection services)
{
// requires
// using RazorPagesMovie.Models;
// using Microsoft.EntityFrameworkCore;
services.AddDbContext<MovieContext>(options =>
options.UseSqlite(Configuration.GetConnectionString("MovieContext")));
services.AddMvc();
}
5、安裝用於進行遷移的 Entity Framework Core NuGet 包
開啟 RazorPagesMovie.csproj,在裡面新建一個
<ItemGroup>
<DotNetCliToolReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Tools" Version="2.0.4" />
</ItemGroup>
6、新增基架工具並執行初始遷移
首先,執行如下命令:
dotnet add package Microsoft.AspNetCore.Razor.Language -v 2.1.0
dotnet add package Microsoft.EntityFrameworkCore.Sqlite -v 2.1.0
dotnet add package Microsoft.EntityFrameworkCore.Tools.DotNet --version 2.1.0-preview1-final
dotnet add package Microsoft.VisualStudio.Web.CodeGeneration.Design -v 2.1.0
來新增package
然後,執行如下命令,來進行初始遷移:
dotnet restore
dotnet ef migrations add InitialCreate
dotnet ef database update
最終,執行
dotnet run
來執行專案,並在瀏覽器中使用 localhost:5000/movies 來訪問。