用户没有访问此对象的权限。Firebase存储android
我是firebase storage的新手。为了学习它,我制作了一个简单的应用程序,它有一个按钮和一个用户没有访问此对象的权限。Firebase存储android,android,firebase,firebase-storage,Android,Firebase,Firebase Storage,我是firebase storage的新手。为了学习它,我制作了一个简单的应用程序,它有一个按钮和一个ImageView。当我点击按钮时,ImageView上会显示一个图像(来自drawable)。我还编写了在Firebase上上载图像的代码,但是onAddFailureListener的异常消息给出了消息用户没有访问此对象的权限。我该怎么办 package com.example.asad.save_photo; import android.app.Activity; import and
ImageView
。当我点击按钮时,ImageView上会显示一个图像(来自drawable)
。我还编写了在Firebase上上载图像的代码,但是onAddFailureListener
的异常消息给出了消息用户没有访问此对象的权限。我该怎么办
package com.example.asad.save_photo;
import android.app.Activity;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.net.Uri;
import android.os.Environment;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;
import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.firebase.storage.FirebaseStorage;
import com.google.firebase.storage.StorageMetadata;
import com.google.firebase.storage.StorageReference;
import com.google.firebase.storage.UploadTask;
import java.io.ByteArrayOutputStream;
import java.io.File;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
FirebaseStorage storage = FirebaseStorage.getInstance();
StorageReference storageRef = storage.getReferenceFromUrl("gs://savephoto-a1cc3.appspot.com");
final StorageReference mountainsRef = storageRef.child("asad");
Button butt = (Button) findViewById(R.id.button);
butt.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
ImageView imageView = (ImageView) findViewById(R.id.image);
imageView.setImageResource(R.drawable.back2);
//imageView.setImageResource(R.drawable.back2);
imageView.setDrawingCacheEnabled(true);
imageView.buildDrawingCache();
Bitmap bitmap = imageView.getDrawingCache();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
final byte[] data = baos.toByteArray();
UploadTask uploadTask = mountainsRef.putBytes(data);
uploadTask.addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception exception) {
// Handle unsuccessful uploads
showToast(exception.getMessage());
}
});
uploadTask.addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
@Override
public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
// taskSnapshot.getMetadata() contains file metadata such as size, content-type, and download URL.
//Uri downloadUrl = taskSnapshot.getDownloadUrl();
showToast("success !!!!!");
}
});
}
});
}
public void showToast(String s) {
Toast.makeText(this,s,Toast.LENGTH_LONG).show();
}
}
使用
match/{allpath=**}
更新您的安全规则,以指示允许对所有路径进行公共读写访问:
service firebase.storage {
match /b/savephoto-a1cc3.appspot.com/o {
match /{allPaths=**} {
// Allow access by all users
allow read, write;
}
}
}
文档部分的选项卡中提供了各种默认规则。在Firebase控制台中更改存储规则
转到存储->规则选项卡 加上这个
// Anyone can read or write to the bucket, even non-users of your app.
// Because it is shared with Google App Engine, this will also make
// files uploaded via GAE public.
service firebase.storage {
match /b/{bucket}/o {
match /{allPaths=**} {
allow read, write;
}
}
}
只需转到存储-规则。输入如下规则,将bucket名称替换为您自己的bucket名称。您可以通过转到存储文件找到bucket名称 它应该是这样的: myapplication-xxxx.appspot.com 这就是你所需要的。如果您只是出于测试目的而进行身份验证,则不需要启用身份验证。如果需要身份验证,可以稍后添加
这些解决方案并没有解决我的问题 解决我的问题的是以下几行: 应用程序内模块
implementation 'com.google.firebase:firebase-database:15.0.0'
implementation 'com.google.firebase:firebase-storage:15.0.0'
implementation 'com.google.firebase:firebase-auth:15.0.0'
这段代码用于上传和获取下载链接
private void uploadImageToFirebase(Bitmap bmp) {
try {
String file_path = Environment.getExternalStorageDirectory().getAbsolutePath() +
"/news";
File dir = new File(file_path);
if (!dir.exists())
dir.mkdirs();
File file = new File(dir, "sketchpad" + "_" + ".png");
FileOutputStream fOut = new FileOutputStream(file);
bmp.compress(Bitmap.CompressFormat.PNG, 100, fOut);
fOut.flush();
fOut.close();
Log.i("SECONDACTIVITY", "ADDED SUCCESSFULLY");
Uri file2 = Uri.fromFile(file);
//Now Upload
final StorageReference storageRef = FirebaseStorage.getInstance().getReference();
StorageReference riversRef = storageRef.child(file.getName());
UploadTask uploadTask;
uploadTask = riversRef.putFile(file2);
progressDialog.show();
progressDialog.setCancelable(false);
uploadTask.addOnProgressListener(new OnProgressListener<UploadTask.TaskSnapshot>() {
@Override
public void onProgress(UploadTask.TaskSnapshot taskSnapshot) {
double progress = (100.0 * taskSnapshot.getBytesTransferred()) / taskSnapshot.getTotalByteCount();
progressDialog.incrementProgressBy((int) progress);
}
});
uploadTask.addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
@Override
public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
progressDialog.dismiss();
Uri DownloadLink = taskSnapshot.getDownloadUrl();
String imgUrl = DownloadLink.toString();
FirebaseDatabase.getInstance().getReference().child("image_link").setValue(imgUrl);
}
});
uploadTask.addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception e) {
progressDialog.dismiss();
}
});
} catch (IOException e) {
e.printStackTrace();
}
}
private void上传ImageToFirebase(位图bmp){
试一试{
字符串文件\u path=Environment.getExternalStorageDirectory().getAbsolutePath()+
“/新闻”;
文件目录=新文件(文件路径);
如果(!dir.exists())
dir.mkdirs();
文件文件=新文件(dir,“sketchpad”+““+”.png”);
FileOutputStream fOut=新的FileOutputStream(文件);
bmp.compress(Bitmap.CompressFormat.PNG,100,fOut);
fOut.flush();
fOut.close();
Log.i(“第二个活动”,“添加成功”);
urifile2=Uri.fromFile(文件);
//现在上传
final StorageReference storageRef=FirebaseStorage.getInstance().getReference();
storagereferef=storageRef.child(file.getName());
上传任务上传任务;
uploadTask=riversRef.putFile(文件2);
progressDialog.show();
progressDialog.setCancelable(假);
uploadTask.addOnProgressListener(新的OnProgressListener(){
@凌驾
public void onProgress(UploadTask.TaskSnapshot TaskSnapshot){
双进度=(100.0*taskSnapshot.GetByTestTransferred())/taskSnapshot.getTotalByteCount();
progressDialog.incrementProgressBy((int)progress);
}
});
uploadTask.addOnSuccessListener(新的OnSuccessListener(){
@凌驾
成功时公共无效(UploadTask.TaskSnapshot TaskSnapshot){
progressDialog.disclose();
Uri DownloadLink=taskSnapshot.getDownloadUrl();
字符串imgUrl=DownloadLink.toString();
FirebaseDatabase.getInstance().getReference().child(“图像链接”).setValue(imgUrl);
}
});
uploadTask.addOnFailureListener(新的OnFailureListener(){
@凌驾
public void onFailure(@NonNull异常e){
progressDialog.disclose();
}
});
}捕获(IOE异常){
e、 printStackTrace();
}
}
问题在于您的firebase存储规则。换成
rules_version = '2';
service firebase.storage {
match /b/{bucket}/o {
match /{allPaths=**} {
allow read, write: if request.auth != null;
}
}
}
确保
if request.auth!=空
Firebase存储错误(已解决)
1。转到您正在处理的项目下的firebase控制台
2。在firebase控制台上的存储和规则下,编辑服务firebase.storage to
service firebase.storage {
match /b/{bucket}/o {
match /{allPaths=**} {
allow read, write;
}
}
}
service firebase.storage {
match /b/{bucket}/o {
match /{allPaths=**} {
allow read, write;
}
}
}
我添加这个答案,希望它能帮助Firebase的某些人:
service firebase.storage {
match /b/{bucket}/o {
match /{allPaths=**} {
// Allow access by all users
allow read, write: if request.auth != null;
}
}
}
service firebase.storage {
match /b/{bucket}/o {
match /{allPaths=**} {
// Allow access by all users
allow read, write: if request.auth != null;
}
}
}
rules_version = '2';
service firebase.storage {
match /b/{bucket}/o {
match /{allPaths=**} {
allow read, write: if request.auth != null;
}
}
}
rules_version = '2';
service firebase.storage {
match /b/{bucket}/o {
match /{allPaths=**} {
allow read, write;
}
}
}
//如果您的应用程序没有登录功能(任何用户都可以直接访问存储),请使用以下方法:-
rules_version = '2';
service firebase.storage {
match /b/{bucket}/o {
match /{allPaths=**} {
allow read, write: if request.auth != null;
}
}
}
rules_version = '2';
service firebase.storage {
match /b/{bucket}/o {
match /{allPaths=**} {
allow read, write;
}
}
}
Firebase存储错误(已解决)1。转到您正在处理的项目下的firebase控制台2。在firebase控制台上的存储下和规则下,将服务firebase.storage编辑为
service firebase.storage {
match /b/{bucket}/o {
match /{allPaths=**} {
allow read, write;
}
}
}
service firebase.storage {
match /b/{bucket}/o {
match /{allPaths=**} {
allow read, write;
}
}
}
注意:如果尚未解决此问题,请检查您的firebase计划是否过期。请转到firebase中的存储/规则文件夹并粘贴以下代码
rules_version = '2';
service firebase.storage {
match /b/{bucket}/o {
match /{allPaths=**} {
allow read, write;
}
}
}
你的操作系统版本是6.0?如果是,则从Nope获取运行时权限。我的操作系统版本是4.2。是否在清单文件中添加权限?这是我唯一添加的一个。我对它真的很陌生,所以请随时指出错误您需要更改firebase存储规则中的安全规则您在哪里添加此规则?@rosualin:在您的项目中,请您扩展您的答案并进行更详细的解释?这对理解非常有用。非常感谢。你真的帮了我,我的问题是我从其他地方复制了这个匹配,但它与我的应用程序名根本不匹配。过了一会儿,我找到了你的解释,就这样,我请你喝了一杯:)。我有确切的设置,仍然收到错误。在删除:if request.auth!=无效的