如何解决错误原因:java.io.IOException:{“错误”:{“代码”:403,“消息”:“权限被拒绝无法执行此操作”}}
我收到此错误,原因是:java.io.IOException:{“错误”:{“代码”:403,“消息”:“权限被拒绝。无法执行此操作”}}或用户没有访问此对象的权限。当我尝试在Firebase中上传数据时 firestore,我已经在firestore规则中授予了权限。
这是我的代码
package com.example.db1;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import android.Manifest;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.provider.MediaStore;
import android.text.TextUtils;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.Toast;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.firestore.DocumentReference;
import com.google.firebase.firestore.FirebaseFirestore;
import com.google.firebase.storage.FirebaseStorage;
import com.google.firebase.storage.StorageReference;
import com.google.firebase.storage.UploadTask;
import java.io.ByteArrayOutputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
public class Register extends AppCompatActivity {
private static final String TAG = "MyActivity";
EditText Name,Email,Contact,Password;
Button Register;
ImageView user_image;
FirebaseFirestore db;
FirebaseAuth mAuth;
ProgressBar progressBar;
String user_id;
Uri download_uri;
StorageReference storageReference;
Bitmap compressed;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_register);
Name = findViewById(R.id.name);
Email = findViewById(R.id.email);
Contact = findViewById(R.id.contact);
Register = findViewById(R.id.register);
Password = findViewById(R.id.password);
user_image = findViewById(R.id.im1);
progressBar = findViewById(R.id.pb1);
progressBar.setVisibility(View.GONE);
db = FirebaseFirestore.getInstance();
mAuth = FirebaseAuth.getInstance();
storageReference = FirebaseStorage.getInstance().getReference();
user_image.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (ContextCompat.checkSelfPermission(Register.this,Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
Toast.makeText(Register.this,"Permission Denied",Toast.LENGTH_LONG).show();
ActivityCompat.requestPermissions(Register.this,new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},1);
} else {
choseImage();
}
} else {
choseImage();
}
}
});
Register.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
final String name = Name.getText().toString().trim();
final String email = Email.getText().toString().trim();
final String contact = Contact.getText().toString().trim();
final String pass = Password.getText().toString().trim();
if(!TextUtils.isEmpty(email) && !TextUtils.isEmpty(name) && !TextUtils.isEmpty(contact) && !TextUtils.isEmpty(pass) && user_image!=null){
progressBar.setVisibility(View.VISIBLE);
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
compressed.compress(Bitmap.CompressFormat.JPEG,100,byteArrayOutputStream);
byte[] thumbData = byteArrayOutputStream.toByteArray();
UploadTask image_path = storageReference.child("user_image").child(user_id + ".jpg").putBytes(thumbData);
image_path.addOnCompleteListener(new OnCompleteListener<UploadTask.TaskSnapshot>() {
@Override
public void onComplete(@NonNull Task<UploadTask.TaskSnapshot> task) {
if (task.isSuccessful()) {
storeData(task,name,email,contact,pass);
} else {
String error = task.getException().getMessage();
Toast.makeText(Register.this,"(IMAGE Error) : " + error,Toast.LENGTH_LONG).show();
}
}
});
}
else{
progressBar.setVisibility(View.GONE);
Toast.makeText(Register.this,"Please fill all fields",Toast.LENGTH_SHORT).show();
}
}
});
}
private void storeData(Task<UploadTask.TaskSnapshot> task,String name,String email,String contact,String pass) {
if (task != null) {
download_uri = task.getResult().getUploadSessionUri();
Map<String,Object> user = new HashMap<>();
user.put("mName",name);
user.put("mEmail",email);
user.put("mContact",contact);
user.put("mPassword",pass);
user.put("userImage",download_uri.toString());
db.collection("users").add(user).addOnSuccessListener(new OnSuccessListener<DocumentReference>() {
@Override
public void onSuccess(DocumentReference documentReference) {
Log.d(TAG,"DocumentSnapshot added with ID: " + documentReference.getId());
Toast.makeText(Register.this,"User data save successfully",Toast.LENGTH_SHORT).show();
startActivity(new Intent(Register.this,Result.class));
}
})
.addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception e) {
Log.w(TAG,"Error adding document",e);
Toast.makeText(Register.this,"User data is not Save",Toast.LENGTH_SHORT).show();
}
});
} else {
Toast.makeText(Register.this,"Error in Data Upload",Toast.LENGTH_SHORT).show();
}
}
private void choseImage() {
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("image/*");
startActivityForResult(Intent.createChooser(intent,"pick an image"),1);
}
@Override
protected void onActivityResult(int requestCode,int resultCode,Intent data) {
super.onActivityResult(requestCode,resultCode,data);
if (requestCode == 1 && resultCode== RESULT_OK) {
try {
InputStream inputStream = getContentResolver().openInputStream(data.getData());
compressed = BitmapFactory.decodeStream(inputStream);
user_image.setImageBitmap(compressed);
}catch (FileNotFoundException e){
e.printStackTrace();
}
}
}
}
解决方法
值得一看您的Firestore rules:
基本规则由一个match语句(指定一个文档路径)和一个allow表达式(允许读取指定数据时详细说明)组成:
service cloud.firestore {
match /databases/{database}/documents {
// Match any document in the 'cities' collection
match /cities/{city} {
allow read: if <condition>;
allow write: if <condition>;
}
}
}
您的错误指向此注意:
您只能访问安全规则明确允许您访问的文档。
例如:在@Alex Mamo提到的question中,解决方案是:
service firebase.storage {
match /b/{bucket}/o {
match /{userId} {
match /{allPaths=**}{
allow read,write: if request.auth.uid == userId;
}
}
}
}
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