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MVC Api控制器系列化参数

jsonserializer api asp.net-mvc json c#

Diego · 技术社区 · 8 年前

我正在使用 HttpClient() PostAsJsonAsync 带有一些参数的类的实例。

string apiUrl = "localhost:8080/api/";
ContactWF contactWF = new contactWF();
contactWF.contact_id=0;
contactWF.UserOrigin_id=20006
contactWF.ProcessState_id=2;

using (HttpClient client = new HttpClient())
{
    client.BaseAddress = new Uri(apiUrl);
    client.DefaultRequestHeaders.Accept.Clear();
    client.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/json"));
    HttpResponseMessage response = await client.PostAsJsonAsync(apiUrl + "Contact/Method", contactWF);
    if (response.IsSuccessStatusCode)
    {
        return response.Content.ReadAsAsync<int>().Result;
    }
}

我的API控制器方法是这样的。

[ActionName("Method")]
[HttpGet]
public int Method([FromBody] ContactWF userwf)
{
    return 10;
}

它很好用。。。

HttpResponseMessage response = await client.PostAsJsonAsync(apiUrl + "Contact/Method", contactWF);

用这个

string jsonData = JsonConvert.SerializeObject(contactWF);
HttpResponseMessage response = client.PostAsJsonAsync("api/Contact/Method", jsonData).Result;

Error:405 ...

Json

我的Json字符串如下所示。

"{\"Contact_id\":0,\"Description\":null,\"ProcessState_id\":2,\"Type_id\":0,\"Object_id\":0,\"Parent_id\":null}"

怎么了?

2 回复 | 直到 8 年前

Vitaliy Smolyakov 8 年前

方法PostAsJsonAsync自己序列化参数对象,因此它序列化了json 一串

如果出于某种原因需要序列化对象本身,则使用方法 HttpClient.PostAsync

string jsonData = JsonConvert.SerializeObject(contactWF);
var stringContent = new StringContent(jsonData, Encoding.UTF8, "application/json");
HttpResponseMessage response = await client.PostAsync("api/Filler/CountMensajeByUser", stringContent);

Hung Quach 8 年前

在api控制器中将动词更改为HttpPost

[ActionName("Method")]
[HttpPost]
public int Method([FromBody] ContactWF userwf)
{
    return 10;
}

使现代化

PostAsJsonAsync

HttpResponseMessage response = client.PostAsJsonAsync("api/Contact/Method", contactWF).Result;

看一看来自microsoft的示例代码 https://docs.microsoft.com/en-us/aspnet/core/mvc/controllers/testing

internal class NewIdeaDto
    {
        public NewIdeaDto(string name, string description, int sessionId)
        {
            Name = name;
            Description = description;
            SessionId = sessionId;
        }

        public string Name { get; set; }
        public string Description { get; set; }
        public int SessionId { get; set; }
    }

//Arrange
var newIdea = new NewIdeaDto("Name", "", 1);

// Act
var response = await _client.PostAsJsonAsync("/api/ideas/create", newIdea);

// Assert
Assert.Equal(HttpStatusCode.BadRequest, response.StatusCode);

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