c# - ASP.NET Web APi - 将对象作为参数传递

Question

用户 Controller 中的 MakeUser 方法，用于创建用户名和密码。

[HttpGet]
public string MakeUser(UserParameters p)
{
    const string chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
    string pass = "";
    Random r = new Random();
    for (int i = 0; i < p.Number; i++)
    {
        pass += chars[r.Next(0, 62)];
    }

    string firstTwoo = p.Name.Substring(0, 2);
    string firstThree = p.Surname.Substring(0, 3);

    return "Your username is: " + firstTwoo + firstThree + "\nYour password is: " + pass;
}

用于将参数作为对象发送的 UserParameter 类。

public class UserParameters
{
    public int Number { get; set; }
    public string Name { get; set; }
    public string Surname { get; set; }    
}

控制台客户端中的 RunAsync 方法。我可以使用 Get 方法传递对象吗？如果是的话，我的错误是什么？谢谢!

static async Task RunAsync()
{
    using (var client = new HttpClient())
    {
        var p = new UserParameters();

        Console.Write("Your username: ");
        p.Name = Console.ReadLine();
        Console.Write("Your surname: ");
        p.Surname = Console.ReadLine();
        Console.Write("Please type a number between 5 and 10: ");
        p.Number = int.Parse(Console.ReadLine());

        client.BaseAddress = new Uri("http://localhost:4688/");
        client.DefaultRequestHeaders.Accept.Clear();
        client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

        //HTTP GET
        HttpResponseMessage response = await client.GetAsync("api/user?p=" + p);

        if (response.IsSuccessStatusCode)
        {
            var result = await response.Content.ReadAsAsync<UserParameters>();
            Console.WriteLine("\n*****************************\n\n" + result);
        }
    }
}

Answer 1

GET 请求不支持您以这种方式传递对象。唯一的选择是像其他人已经演示的那样将其作为查询字符串参数来执行。从设计的角度来看，由于您正在创建一个新资源，因此将其作为 POST 或 PUT 请求更有意义，它们都允许发送实际有效负载连同请求。

[HttpPost]
public string MakeUser([FromBody]UserParameters p)
{
    ...
}

var client = new HttpClient();
client.DefaultRequestHeaders.Accept.Clear();
var response = await client.PostAsJsonAsync(new Uri("http://localhost:4688/"), p);
// do something with response