Core WebAPI 入门

官方文档地址

https://docs.microsoft.com/zh-cn/aspnet/?view=aspnetcore-2.2#pivot=core

使用 ASP.NET Core 构建 Web API

添加API 控制器 

    [Route("api/[controller]/[action]")]
    [ApiController]
    public class HomeController : ControllerBase

设置默认API 

修改launchSetting.json 的launchUrl 设置默认路由

{
  "profiles": {
    "CoreWebAPI": {
      "commandName": "Project",
      "launchBrowser": true,
      "launchUrl": "api/Home/Index",
      "applicationUrl": "http://localhost:5124",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      }
    }
  }
}

Swashbuckle

安装Nuget 包 Swashbuckle.AspNetCore

Install-Package Swashbuckle.AspNetCore

添加并配置 Swagger 中间件

将 Swagger 生成器添加到 Startup.ConfigureServices 方法中的服务集合中：

services.AddSwaggerGen(c =>
    {
        c.SwaggerDoc("v1", new Info { Title = "My API", Version = "v1" });
    });

在 Startup.Configure 方法中，启用中间件为生成的 JSON 文档和 Swagger UI 提供服务

public void Configure(IApplicationBuilder app)
{
    // Enable middleware to serve generated Swagger as a JSON endpoint.
    app.UseSwagger();

    // Enable middleware to serve swagger-ui (HTML, JS, CSS, etc.),
    // specifying the Swagger JSON endpoint.
    app.UseSwaggerUI(c =>
    {
        c.SwaggerEndpoint("/swagger/v1/swagger.json", "My API V1");
    });

    app.UseMvc();
}

要在应用的根 (http://localhost:<port>/) 处提供 Swagger UI，请将 RoutePrefix 属性设置为空字符串：

app.UseSwaggerUI(c =>
{
    c.SwaggerEndpoint("/swagger/v1/swagger.json", "My API V1");
    c.RoutePrefix = string.Empty;
});

API 信息和说明

// Register the Swagger generator, defining 1 or more Swagger documents
services.AddSwaggerGen(c =>
{
    c.SwaggerDoc("v1", new Info
    {
        Version = "v1",
        Title = "ToDo API",
        Description = "A simple example ASP.NET Core Web API",
        TermsOfService = "None",
        Contact = new Contact
        {
            Name = "Shayne Boyer",
            Email = string.Empty,
            Url = "https://twitter.com/spboyer"
        },
        License = new License
        {
            Name = "Use under LICX",
            Url = "https://example.com/license"
        }
    });
});

Swagger UI 显示注释

• 在“解决方案资源管理器”中右键单击该项目，然后选择“编辑 <project_name>.csproj”。
• 手动将突出显示的行添加到 .csproj 文件

<PropertyGroup>
  <GenerateDocumentationFile>true</GenerateDocumentationFile>
  <NoWarn>$(NoWarn);</NoWarn>
</PropertyGroup>

在Service 配置swagger.xml 文件

// Register the Swagger generator, defining 1 or more Swagger documents
    services.AddSwaggerGen(c =>
    {
        c.SwaggerDoc("v1", new Info
        {
            Version = "v1",
            Title = "ToDo API",
            Description = "A simple example ASP.NET Core Web API",
            TermsOfService = "None",
            Contact = new Contact
            {
                Name = "Shayne Boyer",
                Email = string.Empty,
                Url = "https://twitter.com/spboyer"
            },
            License = new License
            {
                Name = "Use under LICX",
                Url = "https://example.com/license"
            }
        });

        // Set the comments path for the Swagger JSON and UI.
        var xmlFile = $"{Assembly.GetExecutingAssembly().GetName().Name}.xml";
        var xmlPath = Path.Combine(AppContext.BaseDirectory, xmlFile);
        c.IncludeXmlComments(xmlPath);
    });