返回带有模型列表HttpGet的自定义模型

// 定义自定义模型
public class Product
{
    public int Id { get; set; }
    public string Name { get; set; }
    public decimal Price { get; set; }
}

// 控制器
[ApiController]
[Route("api/[controller]")]
public class ProductsController : ControllerBase
{
    private readonly List<Product> _products = new List<Product>
    {
        new Product { Id = 1, Name = "Laptop", Price = 999.99m },
        new Product { Id = 2, Name = "Smartphone", Price = 499.99m }
    };

    // GET: api/Products
    [HttpGet]
    public ActionResult<IEnumerable<Product>> GetProducts()
    {
        return _products;
    }
}

// 示例：确保数据源不为空
private readonly List<Product> _products = new List<Product>
{
    new Product { Id = 1, Name = "Laptop", Price = 999.99m },
    new Product { Id = 2, Name = "Smartphone", Price = 499.99m }
};