Question

import { Component, OnInit } from '@angular/core';
import { AngularFireStorage, AngularFireUploadTask, AngularFireStorageReference } from 'angularfire2/storage';

import { Observable } from 'rxjs';

@Component({
  selector: 'app-file-upload',
  templateUrl: './file-upload.component.html',
  styleUrls: ['./file-upload.component.css']
})    
export class FileUploadComponent implements OnInit {

    task: AngularFireUploadTask;

    // Progress monitoring
    percentage: Observable<number>;

    snapshot: Observable<any>;

    // Download URL
    downloadURL: Observable<string>;

    // State for dropzone CSS toggling
    isHovering: boolean;

    constructor(private storage: AngularFireStorage) { }
    ngOnInit() {

    }

    toggleHover(event: boolean) {
      this.isHovering = event;
    }


    startUpload(event: FileList) {
    // The File object
    const file = event.item(0)

    // Client-side validation example
    // if (file.type.split('/')[0] !== 'image') { 
    //   console.error('unsupported file type :( ')
    //   return;
    // }

    // The storage path
    const path = `test/${new Date().getTime()}_${file.name}`;

    const ref = this.storage.ref(path);
    // Totally optional metadata

    // The main task
    this.task = this.storage.upload(path, file);

    // Progress monitoring
    this.percentage = this.task.percentageChanges();
    this.snapshot   = this.task.snapshotChanges()

    // The file's download URL

    }

我正在使用Angular6和Firebase存储，并且希望检索我上传到存储的文件的下载URL。我已经尝试过：

this.downloadURL = ref.getDownloadURL()

但是我没有得到网址。

如果我评论以上语句，项目将编译并运行，甚至文件也已上载到Firebase存储中，但是，我一直在控制台中收到此错误：

HTTP404: NOT FOUND - The server has not found anything matching the requested URI (Uniform Resource Identifier).
(XHR)GET - https://firebasestorage.googleapis.com/v0/b/testfirestore1-b8d7b.appspot.com/o/test%2F1551208510383_testup2.txt

我的问题的解决方法是什么？

无法从Angular的Firebase存储中检索下载URL

0 个答案: