角度发送文件到服务器 [英] angular send files to server

问题描述

我正在尝试将两种类型的文件发送到已经安装的服务器images和zip

I am trying to send two type of files in general to server images and zip I've already installed

"@ionic-native/file": "^5.16.0",
"@ionic-native/file-transfer": "^5.16.0",
"cordova-plugin-file": "^6.0.2",
"cordova-plugin-file-transfer": "^1.7.1",

我也将文件类导入到组件中，例如:

I also imported files classes into my component like:

从'@ ionic-native/file-transfer/ngx'导入{FileTransfer，FileUploadOptions，FileTransferObject}; 从'@ ionic-native/file'导入{File};

import { FileTransfer, FileUploadOptions, FileTransferObject } from '@ionic-native/file-transfer/ngx'; import { File } from '@ionic-native/file';

构造函数( //等等. 私人转让:FileTransfer， 私人文件:文件 ){}

constructor( // etc. private transfer: FileTransfer, private file: File ) { }

我收到此警告:

这是我查看的表单

<form class="ion-padding" [formGroup]="distributorForm" (ngSubmit)="approveDistributor()">
    <ion-row class="ion-padding">
        <ion-col size="12">
            <ion-input type="file" formControlName="coDoc" placeholder="Company documents"></ion-input>
            <small>1- Only <kbd>Zip</kbd> files are allowed. <br> 2- Maximum size: <kbd>10 MB</kbd></small>
        </ion-col>

        <ion-col size="12">
            <ion-button class="ion-margin-top" type="submit" expand="full" color="success" [disabled]="!distributorForm.valid">SEND</ion-button>
        </ion-col>
    </ion-row>
</form>

这是我当前的组件函数without files(这会将数据发送到服务.

Here is my current component function without files (This sending data to service.

approveDistributor() {
    const distributorForm = this.distributorForm.value;
    // tslint:disable-next-line: max-line-length
    this.verifyService.distributorForm(distributorForm.coDoc).subscribe(
      data => {
        this.alertService.presentToast('Sent successfully.');
      },
      error => {
        this.alertService.presentToast(error['message']);
      },
      () => {

        this.Mainstorage.ready().then(() => {

          this.Mainstorage.get('token').then(
            data => {
              this.alertService.presentToast('Your data is in process after approve you\'ll be able to work with software.');
            },
            error => {
              console.log(error);
            }
          );

        });

      }
    );
  }

这是我的服务功能(它将数据发送到服务器)

Here is my service function (This sends data to server)

distributorForm(
    coDoc: String
    ) {
    const headers = new HttpHeaders({
      Authorization : this.token.token_type + " " + this.token.access_token,
      Accept: 'application/json, text/plain',
      'Content-Type': 'application/json'
    });
    return this.http.post(this.env.companyDocs,
      {
        coDoc
      }, { headers }
    );
  }

问题

1. 我应该担心有关FileTransfer的警告吗?如果可以的话，如何解决?
2. 如何获取我的文件正确的路径以将其发送到服务器?

更新

我已经更改了使用formData的功能，例如:

Update

I have changed my function to use formData like:

    const distributorForm = this.distributorForm.value; //my original line

    //added lines
    const formData: FormData = new FormData();
    formData.append('coDoc', distributorForm);
    console.log(formData); // this returns empty array under formData in console.

    // tslint:disable-next-line: max-line-length
    this.verifyService.distributorForm(formData).subscribe(
...
);

即使使用formData，我也无法将文件发送到服务器.

even with formData I cannot send the file to server.

推荐答案

 saveComp() {


            var value: File = file;//get file from input 

            this.customService.saveFile(value)
                .subscribe((data: any) => {
                    // do some stuff

                }, (error: any) => console.log(error))


            return;
           }




saveFile(file: File): any {
        const formData: FormData = new FormData();
       var url="your url";
       //example url= "http://localhost:9090/"+ 'api/CrmLead/CreateFollowUpByExcel';
        formData.append('FollowUpFile', file, file.name);
        return this._http.post(url, formData, this.requestOptions)
            .catch(this.errorHandler);
    }
  requestOptions = {
        headers: new HttpHeaders({

            'Authorization': 'Bearer ' + token,

        })
    };

在ApiController C#中

In ApiController C#

                var httpRequest = _httpContextAccessor.HttpContext.Request;
                var postedFile = httpRequest.Form.Files["FollowUpFile"];

                string path = null;
                if (postedFile != null)
                {
                // do some stuff with file                     

                }

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