Question

我有以下课程

public class RegisterExternalBindingModel
{
    public string UserName { get; set; }

    public string ExternalAccessToken { get; set; }

    public string Provider { get; set; }
}

以下WebAPI方法

    [AllowAnonymous]
    [Route("LoginExternal")]
    [HttpGet]
    public async Task<IHttpActionResult> LoginExternal(RegisterExternalBindingModel model)

我使用以下代码调用Web API方法

HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, new Uri(ConfigurationSettings.AppExternalAccessTokenUrl));
var requestParam = JsonConvert.SerializeObject(new { UserName = "Dan", ExternalAccessToken = googleAccessToken, Provider = "google" });
request.Content = new HttpStringContent(Uri.EscapeDataString(requestParam));

if (request.Content.Headers.ContainsKey("Content-Type"))
{
    request.Content.Headers.Remove("Content-Type");
}
request.Content.Headers.Add("Content-Type", "application/x-www-form-urlencoded");
HttpResponseMessage response = await client.SendRequestAsync(request);

但是，当Web API方法LoginExternal执行时，会创建参数对象本身但单个值为null。有人能告诉我这里我做错了吗？

Answer 1

从它的外观看，你需要强制WebAPI从消息体中读取模型：

public async Task<IHttpActionResult> LoginExternal([FromBody] RegisterExternalBindingModel model)

如果这没有做到这一点，你还应该用HttpPost动词标记它：

[HttpPost]
public async Task<IHttpActionResult> LoginExternal([FromBody] RegisterExternalBindingModel model)

HttpRequestMessage客户端MVC Web API方法参数

1 个答案: