用户没有访问此对象的权限。 Firebase存储android [英] User does not have permission to access this object . Firebase storage android

问题描述

我是新的firebase存储。就这样我可以学习它，我做了一个简单的应用程序，它有一个按钮和 ImageView 。当我点击按钮时，ImageView上将显示（来自drawable）的图像。我也编写了在Firebase上上传图片的代码，但是 onAddFailureListener 的异常消息给出了消息用户没有权限访问此对象。我该怎么办？

  package com.example.asad.save_photo; 
 
导入android.app.Activity; 
导入android.graphics.Bitmap; 
导入android.os.Bundle; 
导入android.net.Uri; 
导入android.os.Environment; 
导入android.support.annotation.NonNull; 
导入android.support.v7.app.AppCompatActivity; 
导入android.os.Bundle; 
导入android.view.View; 
导入android.widget.Button; 
导入android.widget.ImageView; 
导入android.widget.Toast; 
 
 import com.google.android.gms.tasks.OnFailureListener; 
 import com.google.android.gms.tasks.OnSuccessListener; 
导入com.google.firebase.storage.FirebaseStorage; 
导入com.google.firebase.storage.StorageMetadata; 
导入com.google.firebase.storage.StorageReference; 
导入com.google.firebase.storage.UploadTask; 
 
 import java.io.ByteArrayOutputStream; 
 import java.io.File; 
 $ b $ public class MainActivity extends AppCompatActivity {
 
 @Override 
 protected void onCreate（Bundle savedInstanceState）{
 super.onCreate（savedInstanceState）; 
 setContentView（R.layout.activity_main）; 
 FirebaseStorage存储= 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（）; 
位图bitmap = imageView.getDrawingCache（）; 
 
 
 ByteArrayOutputStream baos = new ByteArrayOutputStream（）; 
 bitmap.compress（Bitmap.CompressFormat.JPEG，100，baos）; 
 final byte [] data = baos.toByteArray（）; 
 
 UploadTask uploadTask = （新数据）; 
 uploadTask.addOnFailureListener（new OnFailureListener（）{
 @Override 
 public void onFailure（@NonNull异常异常）{
 //处理不成功的上传
 showToast（exception.getMessage（））; 
} 
}）; 
 uploadTask.addOnSuccessListener（new OnSuccessListener< UploadTask.TaskSnapshot>（）{
 @Override 
 public void onSuccess（UploadTask.TaskSnapshot taskSnapshot）{
 // taskSnapshot.getMetadata（）contains文件元数据（如大小，内容类型和下载URL）
 // Uri downloadUrl = taskSnapshot.getDownloadUrl（）; 
 showToast（success !!!!!）; 
} 
}）; 
 
 
} 
}）; 
 
 
 $ b public void showToast（String s）{
 Toast.makeText（this，s，Toast.LENGTH_LONG）.show（）; 
 
 
 
 
 $ b $ p $这些是我的firebase存储规则$ / $ 
 
 
 服务firebase.storage {
匹配/b/savephoto-a1cc3.appspot.com/o {
允许读取，写入; 
 
 
 $ / code $ / $ p 
 
解决方案
更新您的安全规则使用 match / {allPaths = **} 来表示在所有路径上都允许公开读写访问： 
 
 
 服务firebase.storage {
 match /b/savephoto-a1cc3.appspot.com/o {
 match / {allPaths = **} {
 //允许所有用户访问
允许读取，写入; 
 
 
 
 
 
 
提供了各种默认规则文档中示例规则部分的选项卡。
 
I am new to firebase storage. Just so I could learn it, I made a simple app that has a button and an ImageView. When I click on the button, an image (from drawable) gets displayed on the ImageView. I have also written the code for uploading the image on Firebase, but the exception message of onAddFailureListener gives message User does not have permission to access this object. What should I do ?
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();
    }
}
Here are my firebase storage rules 
service firebase.storage {
  match /b/savephoto-a1cc3.appspot.com/o {
    allow read,write;
  }
}

解决方案
Update your security rules with match /{allPaths=**} to indicate that public read and write access is allowed on all paths:
service firebase.storage {
  match /b/savephoto-a1cc3.appspot.com/o {
    match /{allPaths=**} {
      // Allow access by all users
      allow read, write;
    }
  }
}
Various default rules are provides in the tabs of the Sample Rules section of the documentation.

                        
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