Asp.net web api WebApi C中上载函数的JSON输入#

我的WebApi C#代码中有一个上载函数，它可以很好地处理查询字符串参数。我将使用多表单数据在Rest客户机中传递该文件，它工作得非常好

现在我必须将参数更改为JSON格式，这样请求就不会命中控制器。谁能帮我一下吗

public ReturnMsg UploadDocument(string fileName, string fileSize, string ApplNo, string DocId, string DocSize,string resumeId,string DependId)
    {
        ReturnMsg  objReturnMsg = new ReturnMsg ();
        HttpResponseMessage response = new HttpResponseMessage();

        var httpRequest = HttpContext.Current.Request;
        Stream stream = null;
        if (httpRequest.Files.Count > 0)
        {
            foreach (string file in httpRequest.Files)
            {
                var postedFile = httpRequest.Files[file];
                var filePath = string.Empty;
                stream = postedFile.InputStream;
            }
            objReturnMsg = Bll.UploadFiles(fileName, fileSize, DocId, DocSize,DependId,stream);
        }
        else
        {
            objReturnMsg.Status = "F";
            objReturnMsg.ReturnMessage = "Please Upload a Valid Form";
        }
        return objReturnMsg;
    }

我想把它放进去

 public ReturnMsg UploadDocument(DocDetails docDet)
    {
        ReturnMsg objReturnMsg = new ReturnMsg ();
        HttpResponseMessage response = new HttpResponseMessage();

        var httpRequest = HttpContext.Current.Request;
        Stream stream = null;
        if (httpRequest.Files.Count > 0)
        {
            foreach (string file in httpRequest.Files)
            {
                var postedFile = httpRequest.Files[file];
                var filePath = string.Empty;
                stream = postedFile.InputStream;
            }
            objReturnMsg = Bll.UploadFiles(docDet.fileName, docDet.fileSize, docDet.DocId, docDet.DocSize,docDet.DependId,stream);
        }
        else
        {
            objReturnMsg.Status = "F";
            objReturnMsg.ReturnMessage = "Please Upload a Valid Form";
        }
        return objReturnMsg;
    }

---

您是否尝试过在DocDetails之前添加

[FromBody]

？我从来都不确定什么时候需要这样做，特别是如果这是一个post请求，但总是值得建议的！是的，我已经尝试添加[FromBody]并尝试从Rest客户端访问服务。我将内容类型作为Multipart Formdata传递，并使用内容类型application/json传递文件部分和文本部分。它不起作用：(