我正在 ASP.NET Core 中构建一个 Web API,并且正在试验多个版本。我正在按照以下说明为每个版本创建 Swagger 文档:https://github.com/domaindrivendev/Swashbuckle.AspNetCore/blob/master/README.md#customize-the-action-selection-process
我有两个版本的相同 Action ,定义如下:
namespace Web.Api
{
[ApiController]
[Area("api")]
[Route("[area]/[controller]")]
public abstract class MyApiControllerBase : ControllerBase
{
}
}
namespace Web.Api.V1
{
public class TestController : MyApiControllerBase
{
[HttpGet]
[ApiVersion("1.0")]
public IActionResult Get()
{
return Ok("Version 1.0 endpoint.");
}
}
}
namespace Web.Api.V2
{
public class TestController : MyApiControllerBase
{
[HttpGet]
[ApiVersion("2.0")]
public IActionResult Get()
{
return Ok("Version 2.0 endpoint.");
}
}
}
我的 Swagger Gen 在
Startup.cs
中是这样配置的:services.AddSwaggerGen(options =>
{
options.DocInclusionPredicate((docName, apiDesc) =>
{
if (!apiDesc.TryGetMethodInfo(out MethodInfo methodInfo))
{
return false;
}
IEnumerable<ApiVersion> versions = methodInfo.DeclaringType
.GetCustomAttributes(true)
.OfType<ApiVersionAttribute>()
.SelectMany(a => a.Versions);
return versions.Any(v => $"v{v.ToString()}" == docName);
});
options.SwaggerDoc("v1.0", new OpenApiInfo { Title = "My API", Version = "v1.0" });
options.SwaggerDoc("v2.0", new OpenApiInfo { Title = "My API", Version = "v2.0" });
});
但是,当我访问 Swagger UI 时,它显示“规范中未定义任何操作!”适用于 v1.0 和 v2.0。如果我检查
DocInclusionPredicate
加载 Swagger 文档时,似乎 ApiVersion
属性没有被选取,因此解释了为什么它们没有包含在文档中。例如,当 Web.Api.V2.TestController.Get
被传递为 apiDesc
参数,这是为 Attributes 找到的内容:Attributes
只有
ApiControllerAttribute
, AreaAttribute
, RouteAttribute
, 和 ControllerAttribute
被发现。所有这些都是基类上的属性,而不是直接在 TestController
上的。或 Get()
行动本身。
最佳答案
对于asp.net core 3.0,您可以按照以下步骤操作:
1.安装 Swashbuckle.AspNetCore 5.0.0
2.安装 Microsoft.AspNetCore.Mvc.Versioning 4.0.0
3.安装 Microsoft.AspNetCore.Mvc.Versioning.ApiExplorer 4.0.0
4.改变你的 Controller 如下(ApiVersion
需要在 Controller 上声明):
[Route("api/v{version:apiVersion}/[controller]")]
[ApiVersion("1.0")]
public class TestController : MyApiControllerBase
{
[HttpGet]
public IActionResult Get()
{
return Ok("Version 1.0 endpoint.");
}
}
[Route("api/v{version:apiVersion}/[controller]")]
[ApiVersion("2.0")]
public class TestController : MyApiControllerBase
{
[HttpGet]
public IActionResult Get()
{
return Ok("Version 2.0 endpoint.");
}
}
5.Startup.cs(注意需要使用
services.AddVersionedApiExplorer
并设置options.SubstituteApiVersionInUrl=true
来告诉swagger替换 Controller 路由中的版本并配置api版本:):public void ConfigureServices(IServiceCollection services)
{
services.AddControllers();
services.AddApiVersioning(o => {
o.ReportApiVersions = true;
o.AssumeDefaultVersionWhenUnspecified = true;
o.DefaultApiVersion = new ApiVersion(1, 0);
});
services.AddVersionedApiExplorer(o =>
{
o.GroupNameFormat = "'v'VVV";
o.SubstituteApiVersionInUrl = true;
});
services.AddSwaggerGen(options =>
{
options.DocInclusionPredicate((docName, apiDesc) =>
{
if (!apiDesc.TryGetMethodInfo(out MethodInfo methodInfo))
{
return false;
}
IEnumerable<ApiVersion> versions = methodInfo.DeclaringType
.GetCustomAttributes(true)
.OfType<ApiVersionAttribute>()
.SelectMany(a => a.Versions);
return versions.Any(v => $"v{v.ToString()}" == docName);
});
options.SwaggerDoc("v1.0", new OpenApiInfo { Title = "My API", Version = "v1.0" });
options.SwaggerDoc("v2.0", new OpenApiInfo { Title = "My API", Version = "v2.0" });
});
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
app.UseHttpsRedirection();
app.UseApiVersioning();
app.UseSwagger();
app.UseSwaggerUI(c =>
{
c.SwaggerEndpoint("/swagger/v1.0/swagger.json", "V1 Docs");
c.SwaggerEndpoint("/swagger/v2.0/swagger.json", "V2 Docs");
});
app.UseRouting();
app.UseAuthorization();
app.UseEndpoints(endpoints =>
{
endpoints.MapControllers();
});
}
关于c# - Swagger 找不到 ApiVersion ed 的操作,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/60084877/