AspNetCore 速览

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## 创建项目 ``` dotnet new <TEMPLATE> [--force] [-i|--install] [-lang|--language] [-n|--name] [--nuget-source] [-o|--output] [-u|--uninstall] [Template options] ``` 例如 ``` dotnet new mvc -o projectName ``` 常用模板 <table class="table"> <thead> <tr><th>模板描述</th><th>模板名称</th><th>语言</th></tr> </thead> <tbody> <tr><td>Console application</td><td><code>console</code></td><td>[C#], F#, VB</td></tr> <tr><td>Class library</td><td><code>classlib</code></td><td>[C#], F#, VB</td></tr> <tr><td>Unit test project</td><td><code>mstest</code></td><td>[C#], F#, VB</td></tr> <tr><td>xUnit test project</td><td><code>xunit</code></td><td>[C#], F#, VB</td></tr> <tr><td>NUnit test project</td><td><code>nunit</code></td><td>[C#], F#, VB</td></tr> <tr><td>Razor page</td><td><code>page</code></td><td>[C#]</td></tr> <tr><td>MVC ViewImports</td><td><code>viewimports</code></td><td>[C#]</td></tr> <tr><td>MVC ViewStart</td><td><code>viewstart</code></td><td>[C#]</td></tr> <tr><td>ASP.NET Core empty</td><td><code>web</code></td><td>[C#], F#</td></tr> <tr><td>ASP.NET Core Web App (Model-View-Controller)</td><td><code>mvc</code></td><td>[C#], F#</td></tr> <tr><td>ASP.NET Core Web App</td><td><code>razor</code>,<code>webapp</code></td><td>[C#]</td></tr> <tr><td>ASP.NET Core with Angular</td><td><code>angular</code></td><td>[C#]</td></tr> <tr><td>ASP.NET Core with React.js</td><td><code>react</code></td><td>[C#]</td></tr> <tr><td>ASP.NET Core with React.js and Redux</td><td><code>reactredux</code></td><td>[C#]</td></tr> <tr><td>ASP.NET Core Web API</td><td><code>webapi</code></td><td>[C#], F#</td></tr> <tr><td>Razor class library</td><td><code>razorclasslib</code></td><td>[C#]</td></tr> <tr><td>global.json file</td><td><code>globaljson</code></td><td></td></tr> <tr><td>NuGet config</td><td><code>nugetconfig</code></td><td></td></tr> <tr><td>Web config</td><td><code>webconfig</code></td><td></td></tr> <tr><td>Solution file</td><td><code>sln</code></td><td></td></tr> </tbody> </table> ## Mysql dotnet core 没有Mysql EF Core的官方实现. 但是有一个第三方的实现. [Pomelo.EntityFrameworkCore.MySql](https://www.nuget.org/packages/Pomelo.EntityFrameworkCore.MySql/) ``` dotnet add package Pomelo.EntityFrameworkCore.MySql --version 2.2.0 ``` 在 Startup.cs 里加上DbContext ``` services.AddDbContext<YourDBContext>(options => { string connString = Configuration.GetConnectionString("DefaultConnection"); options.UseMySql(connString); }); ``` "DefaultConnection"可以配置在`appsettings.json`里面 ``` "ConnectionStrings": { "DefaultConnection": "server=localhost;port=3306;database=DBName;uid=root;password=123456" } ``` YourDBContext.cs 例子 ``` public class YourDBContext : DbContext { public YourDBContext(DbContextOptions<YourDBContext> options):base(options){ } public DbSet<YourTable> YourTables {get;set;} } ``` ## 数据库迁移 ``` dotnet ef migrations add Init ``` 创建一个名为Init的迁移 ``` dotnet ef database update <MIGRATION> ``` 将迁移刷进数据库 , 如果未指定迁移，则该命令默认为上次迁移。 ``` dotnet ef migrations remove Init ``` 删除一个迁移任务,remove后面为空默认删除最后一个生成的迁移任务. ## Session 在Startup.cs的ConfigureServices函数里 ``` services.AddSession((opts)=>{ opts.Cookie.HttpOnly = true; opts.Cookie.SecurePolicy = CookieSecurePolicy.None; opts.IdleTimeout = TimeSpan.FromMinutes(1440); opts.Cookie.IsEssential = true; }); ``` 在Startup.cs的Configure函数里 ``` app.UseSession(); ```

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