我将多个JSON对象从我的前端传递到C#后端 - 如何将它们反序列化为C#类,以便以后可以在我的应用程序中使用它们?在我走得更远之前,我依赖于使用JS FormData
对象contentType: false
和processData: false
,因为我还需要通过此AJAX调用传递文件;这与这个问题完全无关。到目前为止,这是我的代码:
前端 - 按下提交按钮时会调用该功能
submitData: function () {
var formCollection = this.appModel.get('formCollection').models;
var formData = new FormData();
var formJson = [];
$.each(formCollection, function (index, form) {
var tempJson = {};
if (form) {
tempJson['id'] = form.get('id');
tempJson['number'] = form.get('number');
tempJson['name'] = form.get('name');
tempJson['attachments'] = form.get('attachments');
formJson.push(tempJson);
}
});
console.log(JSON.stringify(formJson));
formData.append('formJson', JSON.stringify(formJson));
$.ajax({
type: "POST",
url: '/NMISProduct/Test',
contentType: false,
processData: false,
data: formData,
success: function (result) {
console.log(result);
}
});
}
传递的JSON.stringified数据
[{"id":1,"number":null,"name":"Investment Portfolio Statement","attachments":null},{"id":2,"number":"61-0227","name":"WMC Signature Portfolio Agreement","attachments":null},{"id":3,"number":"61-1126","name":"WMC Signature Choice Agreement","attachments":null},{"id":4,"number":"61-1162","name":"WMC Signature Annuities Agreement","attachments":null},{"id":5,"number":"61-1205","name":"WMC Signature Managed Accounts Client Agreement","attachments":null}]
C#MVC 5 Backend
[HttpPost]
public async Task<JsonResult> Test()
{
Debug.WriteLine(Request.Params["formJson"]);
var forms = JsonConvert.DeserializeObject<Form>(Request.Params["formJson"]);
Debug.WriteLine(forms);
try
{
var srNumber = GetSRNumber();
foreach (string file in Request.Files)
{
var fileContent = Request.Files[file];
Debug.WriteLine(ReadFileInputStream(fileContent));
if (fileContent != null && fileContent.ContentLength > 0)
{
// get a stream
var stream = fileContent.InputStream;
// and optionally write the file to disk
//var fileName = Path.GetFileName(file);
var fileName = fileContent.FileName;
var path = Path.Combine(Server.MapPath("~/App_Data/"), fileName);
using (var fileStream = System.IO.File.Create(path))
{
stream.CopyTo(fileStream);
}
}
}
}
catch (Exception)
{
return Json("Upload failed");
}
return Json("File uploaded successfully");
}
public class Form
{
public int id { get; set; }
public string number { get; set; }
public string name { get; set; }
public Form attachments { get; set; }
public byte[] fileAsBytes { get; set; }
}
我完成了我的研究,发现了几个Stackoverflow问题,展示了如何将一个JSON对象序列化为一个C#类 - 但是,我需要将多个JSON对象序列化为List<Form>
。我怎样才能做到这一点?我在发布的代码中做错了什么?
答案 0 :(得分:7)
您正尝试在此处反序列化为单个表单:
var forms = JsonConvert.DeserializeObject<Form>(Request.Params["formJson"]);
只需将其更改为:
var forms = JsonConvert.DeserializeObject<List<Form>>(Request.Params["formJson"]);
然后你应该能够以正常方式使用forms
- 迭代它,计算等等。
答案 1 :(得分:0)
[HttpPost]
public async Task<JsonResult> Test(List<Form> forms)
{
// your code here
}
然后把你的JS代码
formJson.push(tempJson);
里面的
if (form)