使用Firebase的登录系统显示用户不存在

Question

我在Firebase数据库中对2个用户进行了硬编码，然后进行代码检查其工作情况。我使用用户名（即联系电话）登录。每次返回User not exists in database而不显示sign in successfully。我已经附加了signIN.java代码和Firebase图片。

    EditText edtPhone, edtPassword;
    Button btnSignIn;


        edtPassword=(MaterialEditText) findViewById(R.id.edtPassword);
        edtPhone= (MaterialEditText) findViewById(R.id.edtPhone);
        btnSignIn= (Button) findViewById(R.id.btnSignIn);
        FirebaseDatabase database = FirebaseDatabase.getInstance();
        final DatabaseReference table_user = database.getReference("User");
        btnSignIn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                final ProgressDialog mDialog = new ProgressDialog(SignIn.this);
                mDialog.setMessage("Please Waiting...");
                table_user.addValueEventListener(new ValueEventListener() {
                    @Override
                    public void onDataChange(DataSnapshot dataSnapshot) {
                        //check if user not in database
                        if (dataSnapshot.child(edtPhone.getText().toString()).exists()) {

                            // getting user info
                            mDialog.show();
                            User user = dataSnapshot.child(edtPhone.getText().toString()).getValue(User.class);
                            if (user.getPassword().equals(edtPassword.getText().toString())) {
                                Toast.makeText(SignIn.this, "Sign in Successfully!", Toast.LENGTH_SHORT).show();
                            } else {
                                Toast.makeText(SignIn.this, "Sign in failed!!!", Toast.LENGTH_SHORT).show();
                            }
                        }
                        else
                        {
                            mDialog.dismiss();
                            Toast.makeText(SignIn.this, "User not exists in database", Toast.LENGTH_SHORT).show();
                        }

                    }

                    @Override
                    public void onCancelled(DatabaseError databaseError) {

                    }
                });
            }
        });
    }
}

数据库

用户类别代码 `

private String Name;

private String Password;

public User(String name, String password) {
    Name = name;
    Password = password;
}
public User(){

}

public String getName() {
    return Name;
}

public void setName(String name) {
    Name = name;
}

public String getPassword() {
    return Password;
}

public void setPassword(String password) {
    Password = password;
}

} `

Answer 1

更改此

final DatabaseReference table_user = database.getReference("User");

至-

final DatabaseReference table_user = database.getReference("user");

我的意思是文件应小写为“用户”。