無法將數據發送到火力

Question

試圖發送一些數據火力卻深藏不露

public class MainActivity extends AppCompatActivity { 

    private static final String TAG = MainActivity.class.getSimpleName(); 
    private TextView txtDetails; 
    private EditText name,age,gender,mobile,address,blood,bp,date; 
    private Button submit; 
    private FirebaseDatabase firebaseInstance; 
    private DatabaseReference firebaseDatabase; 
    private String patientId; 

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

     txtDetails = findViewById(R.id.txtheading); 
     name = findViewById(R.id.edname); 
     age = findViewById(R.id.edage); 
     gender = findViewById(R.id.edgender); 
     mobile = findViewById(R.id.edmobile); 
     blood = findViewById(R.id.edblood); 
     bp = findViewById(R.id.edbp); 
     date = findViewById(R.id.eddate); 
     submit = findViewById(R.id.btnsubmit); 

     firebaseInstance = FirebaseDatabase.getInstance(); 
     firebaseDatabase = firebaseInstance.getReference("Doctor"); 

     submit.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View view) { 

       String Name = name.getText().toString(); 
       String Age = age.getText().toString(); 
       String Gender = gender.getText().toString(); 
       String Mobile = mobile.getText().toString(); 
       String Blood = blood.getText().toString(); 
       String BP = bp.getText().toString(); 
       String Date = date.getText().toString(); 

      if(TextUtils.isEmpty(patientId)) { 
       createPatient(Name,Age,Gender,Mobile,Blood,BP,Date); 
      } 
      else { 

       updatePatient(Name,Age,Gender,Mobile,Blood,BP,Date); 
      } 
      } 
     }); 

    } 

    private void updatePatient(String name, String age, String gender, 
           String mobile, String blood, 
           String bp, String date) { 



    } 
    private void createPatient(String name, String age, String gender, 
           String mobile, String blood, String bp, String date) { 

     if(TextUtils.isEmpty(patientId)) { 

      patientId = firebaseDatabase.push().getKey(); 
     } 

     Patient patient = new Patient(name,age,gender,mobile,blood,bp,date); 
     firebaseDatabase.child(patientId).setValue(patient); 
     addUserChangeListener(); 

    } 

    private void addUserChangeListener() { 

      firebaseDatabase.child(patientId).addValueEventListener(new ValueEventListener() { 
       @Override 
       public void onDataChange(DataSnapshot dataSnapshot) { 

        Patient patient = dataSnapshot.getValue(Patient.class); 
        if(patient==null) { 


         Log.e(TAG, "User data is changed !"); 
         return; 
        } 

        Log.e(TAG, "User data is changed!" + patient.Names + ", " + patient.Address +", "+patient.Age + 
        "," +patient.Blood +"," +patient.BP+ "," +patient.Gender + 
        "," +patient.Mobile + "," +patient.Date); 



       } 

       @Override 
       public void onCancelled(DatabaseError databaseError) { 
        Log.e(TAG, "Failed to read user", databaseError.toException()); 
       } 
      }); 

    } 


    } 

這裏是我的Patient類：

public class Patient { 

    public String Names; 
    public String Age; 
    public String Gender; 
    public String Mobile; 
    public String Address; 
    public String Blood; 
    public String BP; 
    public String Date; 


    public Patient(String name, String age, String gender, String mobile, String blood, String bp, String date) { 
    } 

    public Patient(String names, String age, String gender, 
        String mobile, String address, String blood, 
        String BP, String date) { 
     Names = names; 
     Age = age; 
     Gender = gender; 
     Mobile = mobile; 
     Address = address; 
     Blood = blood; 
     this.BP = BP; 
     Date = date; 
    } 

    public Patient(String name, String age, String gender, String mobile, String blood, String bp, String date) { 
    } 
} 

Answer 1

首先刪除此：

 if(TextUtils.isEmpty(patientId)) { 

     } 

由此：

 createPatient(Name,Age,Gender,Mobile,Blood,BP,Date); 

這：

 patientId = firebaseDatabase.push().getKey(); 

然後使用地圖，而不是類的存儲信息。

所以刪除此

Patient patient = new Patient(name,age,gender,mobile,blood,bp,date); 

和createPatient方法看起來像這樣

private void createPatient(String name, String age, String gender, 
          String mobile, String blood, String bp, String date) { 



    //create a push id like that 
    patientId = firebaseDatabase.push().getKey(); 

    //make a map called patientmap 

    Map patientmap=new HashMap(); 

    //add your values like this to the map 

     patientmap.put("Name",name); 
     patientmap.put("Age",age); 
     patientmap.put("Gender",gender); 
     patientmap.put("Mobile",mobile); 
     patientmap.put("Blood",blood); 
     patientmap.put("BP",bp); 
     patientmap.put("Date",date); 

    firebaseDatabase.child(patientId).setValue(patientmap); 
    addUserChangeListener(); 

}