Question

我要将电子邮件地址和密码存储到Firebase中，并且希望将电子邮件地址存储为主键，但应用程序崩溃并显示：

无效的Firebase数据库路径：ccw@qq.com。 Firebase数据库路径不得包含“。”，“＃”，“ $”，“ [”或“]”

    private DatabaseReference Userdatabase;

    private FirebaseAuth firebaseAuth;

    private ProgressDialog progressDialog;

    private static final String TAG = "SignupActivity";

    EditText nameText, addressText, emailText, mobileText, passwordText, reEnterPasswordText;
    Button signupButton;
    TextView loginLink;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_signup);

        nameText = (EditText) findViewById(R.id.input_name);
        addressText = (EditText) findViewById(R.id.input_address);
        emailText = (EditText) findViewById(R.id.input_email);
        mobileText = (EditText) findViewById(R.id.input_mobile);
        passwordText = (EditText) findViewById(R.id.input_password);
        reEnterPasswordText = (EditText) findViewById(R.id.input_reEnterPassword);

        firebaseAuth = FirebaseAuth.getInstance();

        signupButton = (Button) findViewById(R.id.btn_signup);
        loginLink = (TextView) findViewById(R.id.link_login);

        Userdatabase = FirebaseDatabase.getInstance().getReference("User");}


    public void AddUser(final String UserEmail, final String Username, final String Password,
                        final String PhoneNumber, final String ComfirmPassword
    , final String Address) {

        Userdatabase = FirebaseDatabase.getInstance().getReference("User").child(UserEmail);
        Userdatabase.addListenerForSingleValueEvent(new ValueEventListener() {
            @Override
            public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
                if(dataSnapshot.exists()){
                    Log.i(TAG, "Username : " + Username + " Had Already Exist");
                    Toast.makeText(getApplicationContext(), "Username Exist !", Toast.LENGTH_SHORT).show();
                    return;
                }

            }

            @Override
            public void onCancelled(@NonNull DatabaseError databaseError) {
                return;
            }
        });

        firebaseAuth.createUserWithEmailAndPassword(UserEmail,Password).addOnCompleteListener(new
                OnCompleteListener<AuthResult>() {
                    @Override
                    public void onComplete(@NonNull Task<AuthResult> task) {

                        progressDialog.dismiss();

                        if (!task.isSuccessful()) {
                            Log.i(TAG, "Buyer FirebaseAuth Register : Fail");
                            Toast.makeText(getApplicationContext(), "Could Not Register Your Account", Toast.LENGTH_SHORT).show();
                            return;

                        }
                        else
                            {
                            Log.i(TAG, "Buyer FirebaseAuth Register : Success");
                            Userdatabase = FirebaseDatabase.getInstance().getReference("User").child(UserEmail);
                            final User user = new User(UserEmail, Password, Username, PhoneNumber, Address, ComfirmPassword);
                            Userdatabase.addListenerForSingleValueEvent(new ValueEventListener() {
                                @Override
                                public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
                                    if(!dataSnapshot.exists()) {
                                        Userdatabase.setValue(user);
                                        Log.i(TAG, "FirebaseDatabase Add Buyer : Success");
                                        Toast.makeText(getApplicationContext(), "Register Complete", Toast.LENGTH_SHORT).show();
                                    }
                                }

                                @Override
                                public void onCancelled(@NonNull DatabaseError databaseError) {
                                    Log.w(TAG, "Database Error");
                                }
                            });
                        }
                    }});

    }

Firebase真的不允许我们将电子邮件地址存储为主键吗？

Answer 1

否，您不能在键值中使用特殊字符，因为这会破坏Firebase的功能（尤其是自动构建的REST API）。

如果您的树的键中包含一个/节点，那么尝试通过REST API进行访问将是不明确的：

http://yourproject.firebase.com/customers/mike/123

这是否意味着来自Mike的财产123？还是以mike/123作为键的节点？不可能知道...

您应该依靠客户节点的自动生成的ID，然后将电子邮件地址存储在此节点的字段中：

users
  - h0r6TNCkEjMBGnYauwOdXhWt6oD3
    - email:mike@example.com

尝试将电子邮件地址存储为Firebase数据库中的密钥，但出现此错误：

1 个答案: