正在创建在ASP中返回OData的enbdpoints。NET核心Web API

我创建了一个新的ASP。NET核心Web API使用模板并添加了Microsoft。AspNetCore。假设需要OData包(v7.0.0-beta1)。

我找不到任何关于如何开始使用它的文档。如果有人能告诉我如何简单地将默认值控制器转换为返回OData而不是Json,那就太好了。

根据您的描述,我建议您可以尝试按照以下步骤创建net core odata web api。

1、安装Microsoft。AspNetCore。OData 7.0.0-beta1

2、安装Microsoft。EntityFrameworkCore

3、创建模型类和DBContext类。

public class Person
{
    [Key]
    public int Id { get; set; }
    [Required]
    public string Name { get; set; }
    [Required]
    public int Age { get; set; }
}

public class ApplicationDbContext : DbContext
{
    public ApplicationDbContext(DbContextOptions options)
        : base(options)
    {
    }


    public DbSet<Person> Persons { get; set; }

}

4、创建一个控制器,在早期版本的OData中,您可以从ODataController继承。但在ASP中。NET核心,没有可用的OData控制器。因此,您需要创建一个具有OData属性的普通控制器。

public class PersonController : Controller
{
    private readonly ApplicationDbContext _appDbContext;
    public PersonController(ApplicationDbContext sampleODataDbContext)
    {
        _appDbContext = sampleODataDbContext;
    }

    [EnableQuery]
    public IActionResult Get()
    {
        return Ok(_appDbContext.Persons.AsQueryable());
    }
}

5、修改启动类代码,添加OData中间件和OData路由。

public class Startup
{
    public Startup(IConfiguration configuration)
    {
        Configuration = configuration;
    }

    public IConfiguration Configuration { get; }

    // This method gets called by the runtime. Use this method to add services to the container.
    public void ConfigureServices(IServiceCollection services)
    {
        services.AddDbContext<ApplicationDbContext>(options =>
options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection")));
        services.AddOData();
        services.AddMvc();

    }

    // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
    public void Configure(IApplicationBuilder app, IHostingEnvironment env)
    {
        //Adding Model class to OData
        var builder = GetEdmModel(app.ApplicationServices);
        builder.EntitySet<Person>(nameof(Person));

        if (env.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
        }

        app.UseMvc((routebuilder =>
        {
            routebuilder.MapODataServiceRoute("odata","odata", builder.GetEdmModel());
        }));
    }

    private static ODataConventionModelBuilder GetEdmModel(IServiceProvider serviceProvider)
    {
        var builder = new ODataConventionModelBuilder(serviceProvider);
       
      return builder;
    }
}

6、打开package manager控制台创建表:Add Migration InitialCreate update database

7、运行应用程序

结果: