dotnet new webapi - n crudstore

步骤2：探索您的项目

cd crudstore

通过输入以下代码在vscode中打开您的项目：

code .

步骤3：设定环境

namespace Models
{
public class Product

{
public int Idproduct { get; set; }
public string Name { get; set; }
public string Imageurl { get; set; }
public decimal Price { get; set; }
}
}

步骤5：创建控制器

static List<product> _products = new List<product>(){
            new Product(){ Idproduct =0, Name= "hard disk", Price= 100  },
            new Product(){ Idproduct =1, Name= "monitor", Price= 250  },
        };

之后，添加下一个代码来处理所有请求。

[Produces("application/json")]
    [ApiController]
    [Route("api/products")]
    public class productController : Controller
    {
        static List<Product> _products = new List<Product>(){
            new Product(){ Idproduct =0, Name= "hard disk", Price= 100  },
            new Product(){ Idproduct =1, Name= "monitor", Price= 250  },
        };

        [HttpGet("GetAll")]
        public IActionResult GetAll()
        {
            return Ok(_products);
        }

        [HttpPost]
        public IActionResult Post([FromBody] Product product)
        {
            _products.Add(product);
            return StatusCode(StatusCodes.Status201Created);
        }

        [HttpPut]
        public IActionResult Put([FromBody] Product product)
        {
            var entity = _products.Where
                         (x => x.Idproduct == product.Idproduct).FirstOrDefault();
            entity.Name =  product.Name;
            entity.Price = product.Price;
            entity.Imageurl =  product.Imageurl;
            return StatusCode(StatusCodes.Status200OK);
        }

        [HttpDelete]
        public IActionResult Delete([FromBody] Product product)
        {
            var entity = _products.Where
                         (x => x.Idproduct == product.Idproduct).FirstOrDefault();
            _products.Remove(entity);
            return StatusCode(StatusCodes.Status200OK);
        }
    }

第6步：将Swagger添加到您的项目

dotnet add package Swashbuckle.AspNetCore

结果，您将看到以下消息：

services.AddCors(o => o.AddPolicy("MyPolicy", builder =>
            {
                builder.AllowAnyOrigin()
                    .AllowAnyMethod()
                    .AllowAnyHeader();
            }));
            // Register the Swagger generator, defining 1 or more Swagger documents
            services.AddSwaggerGen();

之后，转到Startup类中的Configure方法并添加以下代码：

// 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");
            });

最后，您的Startup类应如下所示：

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.AddControllers();
            services.AddCors(o => o.AddPolicy("MyPolicy", builder =>
            {
                builder.AllowAnyOrigin()
                    .AllowAnyMethod()
                    .AllowAnyHeader();
            }));
            // Register the Swagger generator, defining 1 or more Swagger documents
            services.AddSwaggerGen();
        }

        // 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();
            }

            // 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.UseHttpsRedirection();

            app.UseRouting();

            app.UseAuthorization();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
            });
        }
    }

步骤7：测试您的API

dotnet run

步骤8：验证结果

[
{
"idproduct": 0,
"name": "hard disk",
"imageurl": null,
"price": 100
},
{
"idproduct": 1,
"name": "monitor",
"imageurl": null,
"price": 250
}
]

方法Post

{
  "idproduct": 0,
  "name": "watch",
  "imageurl": "http://url",
  "price": 150
}

您可以探索Swagger提供的用于测试API的所有功能，因此您可以使用其他有趣的替代方法（例如Postman和Fiddler）来测试API。