解决方法
您应该使用onloader onSuccessItem和onErrorItem回调:
import { Component } from '@angular/core'; import {FileUploader,FileItem,ParsedResponseHeaders} from "ng2-file-upload"; @Component({ selector: 'upload-file',template: ` <input type="file" ng2FileSelect [uploader]="uploader"> `,}) export class UploadFileComponent { uploader:FileUploader; ngOnInit(): void { this.uploader = new FileUploader({ url: 'http://url.to/upload',headers: [{name:'Accept',value:'application/json'}],autoUpload: true,}); this.uploader.onErrorItem = (item,response,status,headers) => this.onErrorItem(item,headers); this.uploader.onSuccessItem = (item,headers) => this.onSuccessItem(item,headers); } onSuccessItem(item: FileItem,response: string,status: number,headers: ParsedResponseHeaders): any { let data = JSON.parse(response); //success server response } onErrorItem(item: FileItem,headers: ParsedResponseHeaders): any { let error = JSON.parse(response); //error server response } }