Post 使用 HttpClient 不绑定模型

Question

从 azure 函数到 API

的简单 post

using (var response = await httpClient.PostAsJsonAsync(installationServiceUrl, deviceInstallation.ToRequestBody()))
{...}

API 收到请求，但无法从请求中绑定模型

但是 Request.Content 不为空并且包含已发送 JSON object。 Content-Type header 设置为 application/json.

有什么建议吗？

更新：据我了解，API 认为 Model 是简单的字符串值 (locationId)，至少我从 ModelState.Keys [=] 中是这样理解的41=]。它只包含 locationId.

更新：ToRequestBody 方法只是改变 object

的形状

    public static DeviceInstallationRequest ToRequestBody(this DeviceInstallation deviceInstallation)
    {
        return new DeviceInstallationRequest()
        {
                InstallationId = deviceInstallation.InstallationId,
                Name = deviceInstallation.Name,
                StartDateTime = deviceInstallation.StartDateTime,
                EndDateTime = deviceInstallation.EndDateTime,
                CreatedDateTime = deviceInstallation.CreatedDateTime,
                InstallationType = deviceInstallation.InstallationType,
                Production = deviceInstallation.Production,
                Default = deviceInstallation.Default
        }
    }

API 侧的预期模型：

public class BindDeviceInstallationRequest
{
        [Required]
        public string InstallationId { get; set; }

        [Required]
        public string Name { get; set; }

        [Required]
        public DateTime StartDateTime { get; set; }

        [Required]
        public DateTime EndDateTime { get; set; }

        [Required]
        public DateTime CreatedDateTime { get; set; }

        [Required]
        public InstallationType InstallationType { get; set; }

        [Required]
        public bool Production { get; set; }

        [Required]
        public bool Default { get; set; }
}

Answer 1

如果是编码问题，请尝试自己构建内容并将其发送到服务器，

DeviceInstallationRequest model = deviceInstallation.ToRequestBody();
string json = JsonConvert.SerializeObject(model);
var content = new StringContent(json, Encoding.UTF8, "application/json");
using (var response = await httpClient.PostAsync(installationServiceUrl, content)) {
    //...
}

这样您就可以完全控制发送到服务器的内容。

调试时，检查来自客户端的原始 JSON 以及服务器上收到的内容。

Post 使用 HttpClient 不绑定模型

Post with HttpClient doesn't bind model

c#

post

asp.net-web-api

asp.net-web-api2