在 dotnet core web 中接收多部分表单数据 API

Question

我正在开发 Web API，它需要在模型中接收多部分表单数据。截至目前，当我从邮递员处尝试时，它没有收到请求并显示错误请求。我的模型：

public class InvoiceDetails
    {

  
        public int? po_id { get; set; }
        public DateTime created_date { get; set; }
        public string grn_status { get; set; }
        public int utilization_amount { get; set; }
        public int currency_id { get; set; }
        public string currency_code { get; set; }
        public string currency_symbol { get; set; }

        [FromForm(Name = "invoice_file")]
        public List<IFormCollection> invoice_file { get;set;}
        [FromForm(Name = "other_files")]
        public List<IFormCollection> other_files { get; set; }
        
        
    }

在上面class/model“invoice_file”和“other_files”可以有多个文件上传，所以我把它设为列表。

我的操作方法：

        [HttpPost]
        [Route("CreateInvoice")]
        public IActionResult CreateInvoice([FromForm]InvoiceDetails idobj )
        {
            //var modelData = Request.Form["invoice_file"];
           
            Response resobj = new Response();
            try
            {
                if (idobj.invoice_file.Count > 0)
                {
                   
                    resobj = _dataContext.AddInvoice(idobj);
                    if (resobj.flag == true)
                    {
                        Upload(idobj);
                    }
                }
                else
                {
                    resobj.flag = false;
                    resobj.message = "please upload atleast one invioce file";
                }
            }
            catch (Exception ex)
            {
              
            }
        
            return Ok(resobj);
    }

如何制作操作方法或模型，以便用户可以将包含多个文件的模型上传到属性 other_files & invoice_file.

邮递员图片参考

Answer 1

如CodeCaster所说，添加Content-Type:multipart/form-data;并将List<IFormCollection>更改为List<IFormFile>。它不会将整个模型更改为List.So，您还可以检索idobj.xxx.Change

模型中存在的其他信息

public class InvoiceDetails
    {

  
        public int? po_id { get; set; }
        public DateTime created_date { get; set; }
        public string grn_status { get; set; }
        public int utilization_amount { get; set; }
        public int currency_id { get; set; }
        public string currency_code { get; set; }
        public string currency_symbol { get; set; }

        [FromForm(Name = "invoice_file")]
        public List<IFormCollection> invoice_file { get;set;}
        [FromForm(Name = "other_files")]
        public List<IFormCollection> other_files { get; set; }
        
        
    }

至

public class InvoiceDetails
    {


        public int? po_id { get; set; }
        public DateTime created_date { get; set; }
        public string grn_status { get; set; }
        public int utilization_amount { get; set; }
        public int currency_id { get; set; }
        public string currency_code { get; set; }
        public string currency_symbol { get; set; }

        [FromForm(Name = "invoice_file")]
        public List<IFormFile> invoice_file { get; set; }
        [FromForm(Name = "other_files")]
        public List<IFormFile> other_files { get; set; }


    }

结果： IFormCollection 用于检索从发布的表单 data.refer 到 the official document.

的所有值

如果你想使用c，你可以尝试使用它，你可以这样做

public IActionResult CreateInvoice([FromForm]IFormCollection idobj)

并且您需要为 IFormCollection 的每个键获取您想要的数据，因此 public List<IFormCollection> invoice_file { get;set;} 比使用 IFormCollection 更好。

在 dotnet core web 中接收多部分表单数据 API

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