Java Android firebase数据库权限被拒绝，尽管用户已登录

我从未使用过firebase数据库，我想我遇到了一些“新手”问题，我就是解决不了。开门见山：

我的数据库结构如下：

database
 /cookbooks
    /key: cookbook id, value: CookBook.class
       /recipes

 /recipes
    /key: recipe id, value: Recipe.class
 / users
   /cookbooks
      /cookbook id

我想要实现的是，在应用程序启动时，数据从这些存储库（从所有存储库）下载并存储在DataManager类中

以下是我的数据库中的规则：

{
  "rules": {
    "recipes-309da": {
      "cookbooks": {
        ".read": "auth != null",
            ".write": "auth != null",
    },

    "recipes": {
        ".read": "auth != null",
            ".write": "auth != null",
    },

    "users": {
      "$uid": {
          ".read": "auth != null",
                ".write": "auth != null",
      }
    }
    }
}
} 

问题是我一直收到“拒绝许可”通知。没有下载数据，我也无法将任何数据保存到数据库中

如果你能给我任何帮助，我将不胜感激

一些相关代码：

public static final String STORAGE_PATH_PHOTOS_UPLOADS = "photos_uploads/";
    public static final String DATABASE_PATH_PHOTOS_UPLOADS = "photos_uploads";
    public static final String DATABASE_PATH_RECIPES_UPLOADS = "recipes";
    public static final String DATABASE_PATH_COOKBOOKS_UPLOADS = "cookbooks";
    public static final String DATABASE_PATH_USERS = "users";

private StorageReference mStorageReference = FirebaseStorage.getInstance().getReference();
    private DatabaseReference mDatabasePhotosUploads = FirebaseDatabase.getInstance().getReference(ConstantsForUploads.DATABASE_PATH_PHOTOS_UPLOADS);
    private DatabaseReference mDatabaseRecipesUploads = FirebaseDatabase.getInstance().getReference(ConstantsForUploads.DATABASE_PATH_RECIPES_UPLOADS);
    private DatabaseReference mDatabaseCookBooksUploads = FirebaseDatabase.getInstance().getReference(ConstantsForUploads.DATABASE_PATH_COOKBOOKS_UPLOADS);
    private DatabaseReference mDatabaseUsersUploads = FirebaseDatabase.getInstance().getReference(ConstantsForUploads.DATABASE_PATH_USERS);

    private DatabaseReference mDatabaseRecipesUploadsBelowUser = mDatabaseRecipesUploads.child(FirebaseAuth.getInstance().getCurrentUser().getUid());
    private DatabaseReference mDatabaseCookBooksKeyUploadsInUserBooks = mDatabaseUsersUploads.child(FirebaseAuth.getInstance().getCurrentUser().getUid()).child("books");

在MainActivity开始时，我使用GeneralDataManager中的attachListeners（ALL）方法

public void attachListeners(int staticIntFromGeneralUploader) {
    // attaches and detaches SingleValueEventListeners so it can download data while opening an app
    mDatabaseRecipesUploadsBelowUser.addListenerForSingleValueEvent(new ValueEventListener() {
        @Override
        public void onDataChange(DataSnapshot dataSnapshot) {
            mCurrentUserRecipesList = new ArrayList<>();
            mCurrentUserRecipeTitleKeyMap = new HashMap<>();

            for (DataSnapshot snapshot : dataSnapshot.getChildren()) {
                Recipe recipe1 = snapshot.getValue(Recipe.class);
                mCurrentUserRecipesList.add(recipe1);
                mCurrentUserRecipeTitleKeyMap.put(recipe1.getTitle(), snapshot.getKey());
            }
        }

        @Override
        public void onCancelled(DatabaseError databaseError) {

        }
    });

    mDatabaseCookBooksUploads.addListenerForSingleValueEvent(new ValueEventListener() {
        @Override
        public void onDataChange(DataSnapshot dataSnapshot) {
            mRecipesInCookBooksMap = new HashMap<>();

            for (DataSnapshot snapshotOfCookBooks : dataSnapshot.getChildren()) {
                String cookBookKey1 = snapshotOfCookBooks.getKey();

                if (mCurrentUserCookBookKeyTitleMap.containsKey(cookBookKey1)) {
                    CookBook cookbook1 = snapshotOfCookBooks.getValue(CookBook.class);
                    for (DataSnapshot snapshotOfRecipesInsideCookBooks : snapshotOfCookBooks.getChildren()) {
                        if (snapshotOfRecipesInsideCookBooks.getValue() == Recipe.class) {
                            Recipe recipe1 = snapshotOfRecipesInsideCookBooks.getValue(Recipe.class);
                            if (!mRecipesInCookBooksMap.containsKey(cookbook1)) {
                                mRecipesInCookBooksMap.put(cookbook1, new ArrayList<Recipe>());
                                mRecipesInCookBooksMap.get(cookbook1).add(recipe1);
                            } else {
                                mRecipesInCookBooksMap.get(cookbook1).add(recipe1);
                            }
                        }

                    }
                }
            }

            for (CookBook logCookBook : mRecipesInCookBooksMap.keySet()) {
                for (Recipe logRecipe : mRecipesInCookBooksMap.get(logCookBook)) {
                    Log.e("R inside C", "CookBook " + logCookBook.getTitle() + " containts Recipe: " + logRecipe.getTitle());
                }
            }

            // attaches listener so that fragment displaying cookbooks receives arraylist containing cookbooks
            if (mRecipesInCookBooksMap != null && mRecipesUpdateListener != null) {
                mRecipesUpdateListener.onMapChanged((HashMap<CookBook, ArrayList<Recipe>>) mRecipesInCookBooksMap);
            }
        }

        @Override
        public void onCancelled(DatabaseError databaseError) {

        }
    });

    mDatabaseCookBooksKeyUploadsInUserBooks.addListenerForSingleValueEvent(new ValueEventListener() {
        @Override
        public void onDataChange(DataSnapshot dataSnapshot) {
            mCurrentUserCookBookKeyTitleMap = new HashMap<>();

            for (DataSnapshot snapshot : dataSnapshot.getChildren()) {
                String key1 = snapshot.getKey();
                String title1 = snapshot.getValue(String.class);

                mCurrentUserCookBookKeyTitleMap.put(key1, title1);
            }
            Log.e("CurrentUserCookBook", "Updated" + mCurrentUserCookBookKeyTitleMap.keySet());
        }

        @Override
        public void onCancelled(DatabaseError databaseError) {

        }
    });

    if (staticIntFromGeneralUploader == GeneralDataManager.RECIPE_UPDATES_LISTENER) {
        mDatabaseRecipesUploadsBelowUser.addValueEventListener(recipeUpdatesListener);

    } else if (staticIntFromGeneralUploader == GeneralDataManager.COOKBOOK_UPDATES_LISTENER) {
        mDatabaseCookBooksKeyUploadsInUserBooks.addValueEventListener(cookBookKeysInUserBooksUpdatesListener);

    } else if (staticIntFromGeneralUploader == GeneralDataManager.RECIPE_IN_COOKBOOK_UPDATES_LISTENER) {
        mDatabaseCookBooksUploads.addValueEventListener(cookBookDatabaseListener);

    } else if (staticIntFromGeneralUploader == GeneralDataManager.ATTACH_ALL_LISTENERS) {
        mDatabaseRecipesUploadsBelowUser.addValueEventListener(recipeUpdatesListener);
        mDatabaseCookBooksKeyUploadsInUserBooks.addValueEventListener(cookBookKeysInUserBooksUpdatesListener);
        mDatabaseCookBooksUploads.addValueEventListener(cookBookDatabaseListener);
    }

}

和日志的一部分：

10-09 22:13:10.971 27271-27271/com.example.radzik.recipes D/AndroidBash: **signIn:radzikjasiek@gmail.com**
10-09 22:13:11.061 27271-27385/com.example.radzik.recipes D/EGL_emulation: eglMakeCurrent: 0xa2f56080: ver 2 0 (tinfo 0xb40ad170)
10-09 22:13:11.085 27271-27385/com.example.radzik.recipes D/EGL_emulation: eglMakeCurrent: 0xa2f56080: ver 2 0 (tinfo 0xb40ad170)
10-09 22:13:11.110 27271-27385/com.example.radzik.recipes D/EGL_emulation: eglMakeCurrent: 0xa2f56080: ver 2 0 (tinfo 0xb40ad170)
10-09 22:13:11.124 27271-27385/com.example.radzik.recipes D/EGL_emulation: eglMakeCurrent: 0xa2f56080: ver 2 0 (tinfo 0xb40ad170)
10-09 22:13:11.146 27271-27385/com.example.radzik.recipes D/EGL_emulation: eglMakeCurrent: 0xa2f56080: ver 2 0 (tinfo 0xb40ad170)
10-09 22:13:11.168 27271-27385/com.example.radzik.recipes D/EGL_emulation: eglMakeCurrent: 0xa2f56080: ver 2 0 (tinfo 0xb40ad170)
10-09 22:13:11.296 27271-27385/com.example.radzik.recipes D/EGL_emulation: eglMakeCurrent: 0xa2f56080: ver 2 0 (tinfo 0xb40ad170)
10-09 22:13:11.481 27271-27385/com.example.radzik.recipes D/EGL_emulation: eglMakeCurrent: 0xa2f56080: ver 2 0 (tinfo 0xb40ad170)
10-09 22:13:11.498 27271-27385/com.example.radzik.recipes D/EGL_emulation: eglMakeCurrent: 0xa2f56080: ver 2 0 (tinfo 0xb40ad170)
10-09 22:13:11.843 27271-27283/com.example.radzik.recipes D/FirebaseAuth: Notifying id token listeners about user ( Z7aaBQR6GRMaQ35N22jQg2PRgau2 ).
10-09 22:13:11.843 27271-27283/com.example.radzik.recipes D/FirebaseAuth: Notifying auth state listeners about user ( Z7aaBQR6GRMaQ35N22jQg2PRgau2 ).
10-09 22:13:11.874 27271-27271/com.example.radzik.recipes D/FirebaseApp: Notifying auth state listeners.
10-09 22:13:11.875 27271-27271/com.example.radzik.recipes D/FirebaseApp: Notified 0 auth state listeners.
10-09 22:13:11.875 27271-27271/com.example.radzik.recipes D/AndroidBash: **onAuthStateChanged:signed_in:Z7aaBQR6GRMaQ35N22jQg2PRgau2**
10-09 22:13:11.875 27271-27271/com.example.radzik.recipes D/AndroidBash: signInWithEmail:onComplete:true
10-09 22:13:11.901 27271-27385/com.example.radzik.recipes D/EGL_emulation: eglMakeCurrent: 0xa2f56080: ver 2 0 (tinfo 0xb40ad170)
10-09 22:13:11.903 27271-27385/com.example.radzik.recipes E/Surface: getSlotFromBufferLocked: unknown buffer: 0x9d2abf00
10-09 22:13:11.914 27271-27940/com.example.radzik.recipes V/FA: Recording user engagement, ms: 11492
10-09 22:13:11.915 27271-27940/com.example.radzik.recipes V/FA: Using measurement service
10-09 22:13:11.915 27271-27940/com.example.radzik.recipes V/FA: Connecting to remote service
10-09 22:13:11.926 27271-27940/com.example.radzik.recipes V/FA: Activity paused, time: 14198714
10-09 22:13:11.930 27271-27940/com.example.radzik.recipes D/FA: Logging event (FE): user_engagement(_e), Bundle[{firebase_event_origin(_o)=auto, engagement_time_msec(_et)=11492, firebase_screen_class(_sc)=LoginActivity, firebase_screen_id(_si)=-2359265460650245341}]
10-09 22:13:11.970 27271-27271/com.example.radzik.recipes V/FA: onActivityCreated
10-09 22:13:11.980 27271-27271/com.example.radzik.recipes I/AppCompatViewInflater: app:theme is now deprecated. Please move to using android:theme instead.
10-09 22:13:11.984 27271-27940/com.example.radzik.recipes V/FA: Using measurement service
10-09 22:13:11.985 27271-27940/com.example.radzik.recipes V/FA: Connection attempt already in progress
10-09 22:13:12.077 27271-28499/com.example.radzik.recipes I/DynamiteModule: Considering local module com.google.android.gms.firebase_database:4 and remote module com.google.android.gms.firebase_database:6
10-09 22:13:12.077 27271-28499/com.example.radzik.recipes I/DynamiteModule: Selected remote version of com.google.android.gms.firebase_database, version >= 6
10-09 22:13:12.297 27271-27271/com.example.radzik.recipes I/TextToSpeech: Sucessfully bound to com.svox.pico
10-09 22:13:12.307 27271-27940/com.example.radzik.recipes V/FA: Using measurement service
10-09 22:13:12.307 27271-27940/com.example.radzik.recipes V/FA: Connection attempt already in progress
10-09 22:13:12.309 27271-27940/com.example.radzik.recipes D/FA: Logging event (FE): screen_view(_vs), Bundle[{firebase_event_origin(_o)=auto, firebase_previous_class(_pc)=LoginActivity, firebase_previous_id(_pi)=-2359265460650245341, firebase_screen_class(_sc)=MainActivity, firebase_screen_id(_si)=-2359265460650245340}]
10-09 22:13:12.318 27271-27271/com.example.radzik.recipes I/TextToSpeech: Connected to ComponentInfo{com.svox.pico/com.svox.pico.PicoService}
10-09 22:13:12.319 27271-27354/com.example.radzik.recipes I/TextToSpeech: Set up connection to ComponentInfo{com.svox.pico/com.svox.pico.PicoService}
10-09 22:13:12.324 27271-27940/com.example.radzik.recipes V/FA: Using measurement service
10-09 22:13:12.324 27271-27940/com.example.radzik.recipes V/FA: Connection attempt already in progress
10-09 22:13:12.324 27271-27940/com.example.radzik.recipes V/FA: Activity resumed, time: 14199108
10-09 22:13:12.383 27271-27385/com.example.radzik.recipes D/EGL_emulation: eglMakeCurrent: 0xa2f56080: ver 2 0 (tinfo 0xb40ad170)
10-09 22:13:12.478 27271-27940/com.example.radzik.recipes D/FA: Connected to remote service
10-09 22:13:12.478 27271-27940/com.example.radzik.recipes V/FA: Processing queued up service tasks: 4
10-09 22:13:12.491 27271-27370/com.example.radzik.recipes W/SyncTree: Listen at /users/Z7aaBQR6GRMaQ35N22jQg2PRgau2/name failed: FirebaseError: Permission denied
10-09 22:13:12.540 27271-27281/com.example.radzik.recipes I/art: Background partial concurrent mark sweep GC freed 7207(410KB) AllocSpace objects, 2(136KB) LOS objects, 6% free, 54MB/58MB, paused 16.082ms total 68.851ms
10-09 22:13:12.637 27271-27271/com.example.radzik.recipes W/art: Before Android 4.1, method int android.support.v7.widget.ListViewCompat.lookForSelectablePosition(int, boolean) would have incorrectly overridden the package-private method in android.widget.ListView
10-09 22:13:12.791 27271-27271/com.example.radzik.recipes D/FirebaseAuth: **Notifying id token listeners about a sign-out event.**
10-09 22:13:12.791 27271-27271/com.example.radzik.recipes D/FirebaseAuth: Notifying auth state listeners about a sign-out event.
10-09 22:13:12.903 27271-27271/com.example.radzik.recipes D/FirebaseApp: Notifying auth state listeners.
10-09 22:13:12.904 27271-27271/com.example.radzik.recipes D/FirebaseApp: Notified 1 auth state listeners.
10-09 22:13:12.904 27271-27271/com.example.radzik.recipes D/AndroidBash: **onAuthStateChanged:signed_out**
10-09 22:13:12.905 27271-27385/com.example.radzik.recipes E/Surface: getSlotFromBufferLocked: unknown buffer: 0x9d2ac5e0
10-09 22:13:13.146 27271-27385/com.example.radzik.recipes D/EGL_emulation: eglMakeCurrent: 0xa2f56080: ver 2 0 (tinfo 0xb40ad170)
10-09 22:13:13.178 27271-27385/com.example.radzik.recipes V/RenderScript: 0xa2702000 Launching thread(s), CPUs 2
10-09 22:13:13.215 27271-27385/com.example.radzik.recipes D/EGL_emulation: eglMakeCurrent: 0xa2f56080: ver 2 0 (tinfo 0xb40ad170)
10-09 22:13:13.450 27271-28499/com.example.radzik.recipes W/SyncTree: Listen at /users failed: DatabaseError: Permission denied
10-09 22:13:13.470 27271-28499/com.example.radzik.recipes W/SyncTree: Listen at /recipes failed: DatabaseError: Permission denied
10-09 22:13:13.478 27271-28499/com.example.radzik.recipes W/SyncTree: Listen at /photos_uploads failed: DatabaseError: Permission denied
10-09 22:13:13.486 27271-28499/com.example.radzik.recipes W/SyncTree: Listen at /cookbooks failed: DatabaseError: Permission denied
10-09 22:13:13.594 27271-28499/com.example.radzik.recipes W/SyncTree: Listen at /users/Z7aaBQR6GRMaQ35N22jQg2PRgau2/books failed: DatabaseError: Permission denied
10-09 22:13:13.613 27271-28499/com.example.radzik.recipes W/SyncTree: Listen at /recipes/Z7aaBQR6GRMaQ35N22jQg2PRgau2 failed: DatabaseError: Permission denied
10-09 22:13:16.296 27271-27385/com.example.radzik.recipes E/Surface: getSlotFromBufferLocked: unknown buffer: 0x9d2ac4a0
10-09 22:13:17.557 27271-27940/com.example.radzik.recipes V/FA: Inactivity, disconnecting from the service

---

今天早上，我深入研究了这个问题，找到了解决办法。这很容易，我不知道为什么我没有早点想到

问题在于规则

这些都是老规矩：

    {
  "rules": {
    "recipes-309da": {
      "cookbooks": {
        ".read": "auth != null",
            ".write": "auth != null",
    },

    "recipes": {
        ".read": "auth != null",
            ".write": "auth != null",
    },

    "users": {
      "$uid": {
          ".read": "auth != null",
                ".write": "auth != null",
      }
    }
   }
  }
 }

我用来创建用户的方法是：

mRef.child("users").child(userId).setValue(user);

结果很明显-对/用户的访问仅限于用户，因此没有用户能够有效地登录到数据库

我换了它，现在它工作得很好。下面我放了新的，更新的代码。非常感谢你为我提供的一切帮助

{
  "rules": {
        "users": {
                "$uid": {
                    ".read": true,
                            ".write": true,

                    "books": {
                                ".read": "auth != null",
                        ".write": "auth != null",
                }
            } 
         },

        "recipes": {
          "$uid": {
            ".read": "auth != null",
                ".write": "auth != null",
          }   
        },

                "cookbooks": {
          ".read": "auth != null",
          ".write": "auth != null",
        }
    } 
}

---

您是否在firebase控制台中启用了登录方法，或在清单中添加了INTERNET权限？你也可以发布相关代码和日志吗？是的，我有上网许可。刚刚上传了部分日志和一些代码，尝试应用

“.read”：true，“.write”：true

规则，并检查规则是否没有问题。顺便说一句，这不是新手的问题。你已经用复杂的数据结构开始了你的firebase之旅。我已经测试了数据库上传和下载，它工作得很好。所有的操作，如从食谱中删除食谱等，也都在工作。问题是在“关闭”用户访问权限后开始的。在日志中，我发现用户登录并立即注销。。。我不知道为什么会接受它作为一个答案，以便它可以帮助用户在未来类似的问题。我得到一个错误“你可以接受你自己的答案明天”。明天就是：）

{
  "rules": {
        "users": {
                "$uid": {
                    ".read": true,
                            ".write": true,

                    "books": {
                                ".read": "auth != null",
                        ".write": "auth != null",
                }
            } 
         },

        "recipes": {
          "$uid": {
            ".read": "auth != null",
                ".write": "auth != null",
          }   
        },

                "cookbooks": {
          ".read": "auth != null",
          ".write": "auth != null",
        }
    } 
}