使用Flatter中的Firebase存储

我对Flitter还比较陌生，以前从未使用过Firebase，所以如果有一个明显的解决方案，我会给出我的建议

我正在开发一个Flitter应用程序，其中包括记录表单提交并将其提交到中心位置

Firebase存储似乎非常适合，因为据我所知，该应用程序可以将文件上传到云存储桶，然后可以通过Firebase控制台访问这些文件。如果我错了，请纠正我

所以我找到了这个颤振模块；

我使用示例代码作为基础

一次在我调用的代码的开头

final FirebaseApp app = await FirebaseApp.configure(
  name: 'test',
  options: new FirebaseOptions(
    googleAppID: Platform.isIOS
        ? '{ios app id}'
        : '{android app ID}',
    gcmSenderID: '{project number code}',
    apiKey: '{web api key from the firebase console}',
    projectID: '{project ID}',
  ),
);
storage = new FirebaseStorage(
    app: app, storageBucket: '{address to data bucket}');

然后上传一个我试过的文件

final StorageReference ref =
storage.ref().child('uploads').child(filename);
final StorageUploadTask uploadTask = ref.putFile(
  file,
  new StorageMetadata(
    contentLanguage: 'en',
    customMetadata: <String, String>{'activity': 'submission'},
  ),
);


final Uri downloadUrl = (await uploadTask.future).downloadUrl;

final http.Response downloadData = await http.get(downloadUrl);
final String name = await ref.getName();
final String bucket = await ref.getBucket();
final String path = await ref.getPath();


return downloadData.statusCode >= 200 && 299 >= downloadData.statusCode;

我的问题是，当我试图上传文件时，我得到了以下错误

W/DynamiteModule(25832): Local module descriptor class for com.google.android.gms.firebasestorage not found.
I/DynamiteModule(25832): Considering local module com.google.android.gms.firebasestorage:0 and remote module com.google.android.gms.firebasestorage:6
I/DynamiteModule(25832): Selected remote version of com.google.android.gms.firebasestorage, version >= 6
W/System  (25832): ClassLoader referenced unknown path: /data/data/com.google.android.gms/app_chimera/m/00000040/n/armeabi-v7a
W/System  (25832): ClassLoader referenced unknown path: /data/data/com.google.android.gms/app_chimera/m/00000040/n/armeabi
E/StorageUtil(25832): error getting token java.util.concurrent.ExecutionException: com.google.firebase.internal.api.FirebaseNoSignedInUserException: Please sign in before trying to get a token.
W/NetworkRequest(25832): no auth token for request
E/StorageException(25832): StorageException has occurred.
E/StorageException(25832): User does not have permission to access this object.
E/StorageException(25832):  Code: -13021 HttpResult: 403
E/StorageException(25832): The server has terminated the upload session
E/StorageException(25832): java.io.IOException: The server has terminated the upload session
E/StorageException(25832):  at com.google.firebase.storage.UploadTask.zzs(Unknown Source)
E/StorageException(25832):  at com.google.firebase.storage.UploadTask.zzr(Unknown Source)
E/StorageException(25832):  at com.google.firebase.storage.UploadTask.run(Unknown Source)
E/StorageException(25832):  at com.google.firebase.storage.StorageTask.zzl(Unknown Source)
E/StorageException(25832):  at com.google.firebase.storage.zzq.run(Unknown Source)
E/StorageException(25832):  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
E/StorageException(25832):  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
E/StorageException(25832):  at java.lang.Thread.run(Thread.java:818)
E/StorageException(25832): Caused by: java.io.IOException: {  "error": {    "code": 403,    "message": "Permission denied. Could not perform this operation"  }}
E/StorageException(25832):  at bha.a(:com.google.android.gms.dynamite_dynamitemodulesc@12685022@12.6.85 (040308-197041431):147)
E/StorageException(25832):  at bha.a(:com.google.android.gms.dynamite_dynamitemodulesc@12685022@12.6.85 (040308-197041431):119)
E/StorageException(25832):  at bgu.onTransact(:com.google.android.gms.dynamite_dynamitemodulesc@12685022@12.6.85 (040308-197041431):7)
E/StorageException(25832):  at android.os.Binder.transact(Binder.java:387)
E/StorageException(25832):  at com.google.android.gms.internal.firebase_storage.zza.transactAndReadExceptionReturnVoid(Unknown Source)
E/StorageException(25832):  at com.google.android.gms.internal.firebase_storage.zzm.zzf(Unknown Source)
E/StorageException(25832):  at com.google.android.gms.internal.firebase_storage.zzq.zza(Unknown Source)
E/StorageException(25832):  at com.google.android.gms.internal.firebase_storage.zzf.zza(Unknown Source)
E/StorageException(25832):  at com.google.firebase.storage.UploadTask.zzc(Unknown Source)
E/StorageException(25832):  ... 6 more
E/StorageException(25832): StorageException has occurred.
E/StorageException(25832): User does not have permission to access this object.
E/StorageException(25832):  Code: -13021 HttpResult: 403
E/StorageException(25832): The server has terminated the upload session
E/StorageException(25832): java.io.IOException: The server has terminated the upload session
E/StorageException(25832):  at com.google.firebase.storage.UploadTask.zzs(Unknown Source)
E/StorageException(25832):  at com.google.firebase.storage.UploadTask.zzr(Unknown Source)
E/StorageException(25832):  at com.google.firebase.storage.UploadTask.run(Unknown Source)
E/StorageException(25832):  at com.google.firebase.storage.StorageTask.zzl(Unknown Source)
E/StorageException(25832):  at com.google.firebase.storage.zzq.run(Unknown Source)
E/StorageException(25832):  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
E/StorageException(25832):  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
E/StorageException(25832):  at java.lang.Thread.run(Thread.java:818)
E/StorageException(25832): Caused by: java.io.IOException: {  "error": {    "code": 403,    "message": "Permission denied. Could not perform this operation"  }}
E/StorageException(25832):  at bha.a(:com.google.android.gms.dynamite_dynamitemodulesc@12685022@12.6.85 (040308-197041431):147)
E/StorageException(25832):  at bha.a(:com.google.android.gms.dynamite_dynamitemodulesc@12685022@12.6.85 (040308-197041431):119)
E/StorageException(25832):  at bgu.onTransact(:com.google.android.gms.dynamite_dynamitemodulesc@12685022@12.6.85 (040308-197041431):7)
E/StorageException(25832):  at android.os.Binder.transact(Binder.java:387)
E/StorageException(25832):  at com.google.android.gms.internal.firebase_storage.zza.transactAndReadExceptionReturnVoid(Unknown Source)
E/StorageException(25832):  at com.google.android.gms.internal.firebase_storage.zzm.zzf(Unknown Source)
E/StorageException(25832):  at com.google.android.gms.internal.firebase_storage.zzq.zza(Unknown Source)
E/StorageException(25832):  at com.google.android.gms.internal.firebase_storage.zzf.zza(Unknown Source)
E/StorageException(25832):  at com.google.firebase.storage.UploadTask.zzc(Unknown Source)
E/StorageException(25832):  ... 6 more

是否可以使用应用程序帐户服务帐户登录？所以个人用户不需要登录

我做错了什么？

引用您的StorageException：

用户没有访问此对象的权限

这是您所期望的，因为您的规则规定了以下内容：

allow read, write: if request.auth != null;

Firebase使用身份验证

有两个选项可以解决此问题：

您可以使用该插件向Firebase验证您的用户

或者通过更改规则以允许读、写，使您的文件公开可用

---

包含有关集成Firebase身份验证的信息。

我想您缺少的是。如果您在Android模拟器中运行，请确保它安装了Play Store。Play Store应该是Google Play servicesYeah我应该提到我已经添加了这个包，以查看是否需要它，在此之前，错误在另一条消息之前包含了对它的引用，但是，即使我将对存储的访问设置为public，我也会遇到相同的错误。更新访问规则时有延迟吗？@peopleTookalThegoodNames我不这么认为。你可能遗漏了什么。是的，看起来规则传播有点延迟，所以当我稍后再次尝试使用公共访问时，一切都如期工作！非常感谢。

allow read, write: if request.auth != null;