Question

我目前正在尝试将角度模型发布到.NET Core MVC中的Web API。将Angular侧的模型正确地填充到Web API的Post点之前。但是，到达API时，模型看起来像{"urlEndpoint":null,"token":null}。

我尝试更改标头Content-Type，尝试添加[FromBody]，还尝试将控制器从HttpResponseMessage更改为IHttpActionResult-几乎所有解决方案堆栈溢出实际上是类似的问题。但是有趣的是，相同的代码可以在标准.NET上的旧项目中使用。

对此的任何帮助将不胜感激……这真让我发疯！

角度组件：

 getPdfData() {

    let token = this.httpService.getToken("token");

    this.urlAndTokenModel = new UrlAndTokenModel();

    this.urlAndTokenModel.Token = token;
    this.urlAndTokenModel.UrlEndpoint = this.apiEndpoint;
    this.httpService.postPdfBytes('/blahblah/api/pleaseworkthistime', this.urlAndTokenModel, this.successCallback.bind(this),
        this.failureCallback.bind(this));

}

Angular http.service

    postPdfBytes(url: string, data: UrlAndTokenModel, successCallback, errorCallback) {

    return this.http.post(url, data,
        {
            headers: new HttpHeaders().set('Content-Type', 'application/json'),
            responseType: 'blob'
        }

    ).subscribe(

        resp => successCallback(resp),
        error => errorCallback(error)
        );
}

Web API：

    public class TestController : BaseController
{
    public TestController(ICacheHelper cacheHelper) : 
        base(cacheHelper)
    {
    }

    [Route("api/pleaseworkthistime")]
    [HttpPost]
    public HttpResponseMessage GetDocument(UrlAndTokenModel data)
    {

        var client = new HttpClient();

        client.DefaultRequestHeaders.Add("Authorization", data.Token);

        var responseTask = client.GetAsync(data.UrlEndpoint);

        responseTask.Wait();

        var result = responseTask.Result;

        byte[] finalResult = null;

        if (result.IsSuccessStatusCode)
        {

            var readTask = result.Content.ReadAsByteArrayAsync();
            readTask.Wait();

            finalResult = readTask.Result;

        }

        var httpRequestMessage = new HttpRequestMessage();
        var httpResponseMessage = httpRequestMessage.CreateResponse(HttpStatusCode.OK);

        httpResponseMessage.Content = new ByteArrayContent(finalResult);
        httpResponseMessage.Content.Headers.ContentDisposition = new System.Net.Http.Headers.ContentDispositionHeaderValue("attachment");
        httpResponseMessage.Content.Headers.ContentDisposition.FileName = "mytestpdf.pdf";
        httpResponseMessage.Content.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("application/octet-stream");

        return httpResponseMessage;
    }

}

然后显然是带有URLAndTokenModel和令牌的角URLEndpoint，在C＃模型中也是如此。

Answer 1

终于解决了！我希望这可以帮助其他经历相同问题的人。

发布到.NET API时，首先需要使用JSON.Stringify

 this.httpService.postPdfBytes('/blahblah/api/pleaseworkthistime', JSON.stringify(this.urlAndTokenModel), this.successCallback.bind(this),
        this.failureCallback.bind(this));

角度http.service也需要更新，因此更新为字符串而不是模型。

postPdfBytes(url: string, data: string, successCallback, errorCallback)

这时它仍然没有，然后将[FromBody]简单添加到Controller中，然后哇！

public HttpResponseMessage GetDocument([FromBody] UrlAndTokenModel data)

ASP.NET Web API无法接收从Angular发布的数据

1 个答案: