我花了一整天的時(shí)間試圖讓它發(fā)揮作用，我查看了以下內(nèi)容：https://www.talkingdotnet.com/upload-file-angular-5-asp-net-core-2-1-web-api/https://code-maze.com/upload-files-dot-net-core-angular/還有很多我數(shù)不過來的。我想要的只是發(fā)送一份表格和一張圖像。得到的錯(cuò)誤是：缺少內(nèi)容類型邊界內(nèi)容類型不正確函數(shù)求值需要所有線程運(yùn)行有角的register(user: UserViewModel, logo: File) { // We use formData because we can't send file as an object const formData = new FormData(); formData.append("user", JSON.stringify(user)); formData.append("logo", logo); console.log(formData); return this.http.post<UserRegisterViewModel>(`${UserAPI.API_User}/${"register"}`, formData).pipe(map(user => { return user; })); }我的 C# 代碼看起來像這樣[HttpPost, DisableRequestSizeLimit] [AllowAnonymous] [Route("register")] //[Consumes("application/json", "multipart/form-data")] public async Task<IActionResult> RegisterAsync() { IFormFile logo = null; try { // Get the logo logo = Request.Form.Files[0]; // Get the user json string var userJson = Request.Form["user"];
2 回答
HUWWW
TA貢獻(xiàn)1874條經(jīng)驗(yàn) 獲得超12個(gè)贊
如果您想從 獲取文件Request.Form。您可以按照以下代碼示例操作：
客戶端 ：
const formData = new FormData();
formData.append('file', fileToUpload, fileToUpload.name);
this.http.post('https://localhost:5001/api/upload', formData, {reportProgress: true, observe: 'events'})
.subscribe(event => {
if (event.type === HttpEventType.UploadProgress)
this.progress = Math.round(100 * event.loaded / event.total);
else if (event.type === HttpEventType.Response) {
this.message = 'Upload success.';
this.onUploadFinished.emit(event.body);
}
});
服務(wù)器端 ：
[HttpPost, DisableRequestSizeLimit]
public IActionResult Upload()
{
try
{
var file = Request.Form.Files[0];
var folderName = Path.Combine("StaticFiles", "Images");
var pathToSave = Path.Combine(Directory.GetCurrentDirectory(), folderName);
.....
}
catch (Exception ex)
{
....
}
}
或者您可以使用 FromForm 獲取文件：
客戶端 ：
let fileToUpload = <File>files[0];
const formData = new FormData();
formData.append('file', fileToUpload, fileToUpload.name);
this.http.post('YourURL', formData, {headers: {
'Accept': 'application/json',
'Content-Disposition' : 'multipart/form-data'
},reportProgress: true, observe: 'events'})
.subscribe(event => {
....
});
那么服務(wù)器端將是：
[HttpPost, DisableRequestSizeLimit]
public IActionResult Upload([FromForm(Name = "file")] IFormFile file)
{
}
守候你守候我
TA貢獻(xiàn)1802條經(jīng)驗(yàn) 獲得超10個(gè)贊
這解決了它，我有一個(gè)斷點(diǎn)
logo?=?Request.Form.Files[0];
由于某種原因，VS2017 和 2019 中存在一個(gè)錯(cuò)誤。
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