Question

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我正在尝试在表格视图中显示当前登录用户所做的所有约会。我正在尝试通过利用此用户登录的用户名来创建条件，因为用户名在数据库中是唯一的。

PS。我写了关于我尝试通过代码的细节。

保存约会的第一个表格如下：

这是“Programaritest”表格

ID_programare | Nume | Prenume | Data | Ora | Departament | Doctor | Nr_telefon

这是帐户表，其中用户名保存为唯一

ID_account | Username | Password | Email | Nume |  Prenume | Admin

在这里，我用数据库中的东西填充tableview。

我所说的用户名在另一个类中被定义为TextField，我将在下面发布

package LicentaApp;

public class ProgramariDBController implements Initializable {


@FXML
private TableView<DetaliiProgramari> ProgrDB;
@FXML
private TableColumn<DetaliiProgramari, String> Nume;
@FXML
private TableColumn<DetaliiProgramari, String> Prenume;
@FXML
private TableColumn<DetaliiProgramari, String> Data;
@FXML
private TableColumn<DetaliiProgramari, String> Ora;
@FXML
private TableColumn<DetaliiProgramari, String> Departament;
@FXML
private TableColumn<DetaliiProgramari, String> Doctor;
@FXML
private TableColumn<DetaliiProgramari, String> Nr_telefon;

public LogareController Numeutilzator = new LogareController(); This is how I thought of taking the username which is found in LogareController, when somebody is tipying it in to login into the app.

private ObservableList<DetaliiProgramari> Info;

@Override
public void initialize(URL url, ResourceBundle ResurcesFORDAYS) {
    // TODO

}

@FXML
private void loadDataFromDatabase(ActionEvent event) {
    try {
      ConectaredB ConectaredB=new ConectaredB();
        Connection conectare=ConectaredB.logareDB();

        Info = FXCollections.observableArrayList();

        ResultSet IncDate = conectare.createStatement().executeQuery("SELECT *  FROM programaritest WHERE Username IN (SELECT Username FROM accounts where Username='"+Numeutilzator.getText()+" ')"); This is how I thought of making the query.
        while (IncDate.next()) {

            Info.add(new DetaliiProgramari(IncDate.getString(2), IncDate.getString(3), IncDate.getString(4), IncDate.getString(5), IncDate.getString(6), IncDate.getString(7), IncDate.getString(8)));
        }
    } catch (SQLException ex) {
        System.err.println("Error"+ex);
    }

    Nume.setCellValueFactory(new PropertyValueFactory<>("Nume"));
    Prenume.setCellValueFactory(new PropertyValueFactory<>("Prenume"));
    Data.setCellValueFactory(new PropertyValueFactory<>("Data"));
    Ora.setCellValueFactory(new PropertyValueFactory<>("Ora"));
    Departament.setCellValueFactory(new PropertyValueFactory<>("Departament"));
    Doctor.setCellValueFactory(new PropertyValueFactory<>("Doctor"));
    Nr_telefon.setCellValueFactory(new PropertyValueFactory<>("Nr_telefon"));

    ProgrDB.setItems(null);
    ProgrDB.setItems(Info);
    }
}

所以这里是找到我想要使用的用户名的类：

 package LicentaApp;

 public class LogareController implements Initializable {
 public LoginVerifier loginVerifier = new LoginVerifier();

   @FXML
   private TextField Numeutilzator; **This is the one, "NumeUtilizator" is the username 

   @FXML
   private PasswordField Parola;

   @FXML
   private Label Stare;
 @Override
 public void initialize(URL location, ResourceBundle resources) {

  if (loginVerifier.Conexiune()) {
      Stare.setText("");
  } else {
      Stare.setText("Conexiune nereusita!");
  }
 }

 public void Autentificare (ActionEvent event) {
 try {
     if(loginVerifier.testaredate(Numeutilzator.getText(),                 Parola.getText())) {
         Stare.setText("Autentificare reusita !");
         ((Node)event.getSource()).getScene().getWindow().hide();
            Stage StagePrincipala= new Stage();
            FXMLLoader incarcator= new FXMLLoader();
            Pane parinte =     incarcator.load(getClass().getResource("/LicentaApp/Meniu.fxml").openStream());

            Scene scene = new Scene(parinte);
            scene.getStylesheets().add(getClass().getResource("Style1212.css").toExternalForm());
            StagePrincipala.setScene(scene);
            StagePrincipala.show();

          }
     else { 
         Stare.setText("Nume de utilizator sau parola incorect");

     }
} catch (SQLException e) {
     e.printStackTrace();
} catch (IOException e) {
    e.printStackTrace();
    }
 }
     @FXML
    public void Inregistrare(ActionEvent event) {
        try {
             ((Node)event.getSource()).getScene().getWindow().hide();
            Stage PS= new Stage();
            FXMLLoader incarcator= new FXMLLoader();
            Pane parinte =     incarcator.load(getClass().getResource("/LicentaApp/InregistrareUser.fxml").open    Stream());
            Scene scena = new Scene(parinte);
            scena.getStylesheets().add(getClass().getResource("Style1212.css").toExternalForm());
            PS.setScene(scena);
            PS.show();
    } catch (Exception e) {

    }

public String getText() {
    TextField Numeutilizator = new TextField();
    Numeutilizator.getText();
    return null;
}

    }

}

我得到的错误是：

对于LogareController类型
，方法getText（）未定义

这是为什么？

PS。基本上我想显示当前登录用户所做的所有约会。

这就是我的尝试：

public String getText() {
    TextField Numeutilizator = new TextField();
    Numeutilizator.getText();
    return null;
}

似乎已经修好了，但我不知道它应该是怎么回事，你怎么看？

将用户名添加到apointment

基本上，如果有其他人看到这个，我正在尝试从LogareController获取用户名（Numeutilizator）（用户名在那里用于登录），以便在创建apointment时在AddProgramareController中使用，用户名将被插入到表中，以便我可以使用它来显示该用户在tableview中所做的所有apoint：

我现在收到错误：

java.sql.SQLIntegrityConstraintViolationException：列'Numeutilizator'不能为null

问题是我尝试从Numeutilizator移动信息是不成功的，或者我试图将该信息提供给查询（语句）的方式并不完全存在..

package LicentaApp;




public class AddProgramareController implements Initializable {
ObservableList Timestamp=FXCollections.observableArrayList();




@FXML
private TextField Nume;

@FXML
private TextField Prenume;

@FXML
private TextField Ora;

@FXML
private DatePicker Data;

@FXML
private TextField Departament;

@FXML
private TextField Doctor;

@FXML
private TextField Nr_telefon;













@FXML
LogareController Numeutilizator=new LogareController();

public void initialize(URL location, ResourceBundle resources) {

} 
@FXML 
private void AddProgramare(ActionEvent event) throws SQLException, IOException  {


    String Interogare1= "INSERT INTO programaritest(Nume,Prenume,Data,Ora,Departament,Doctor,Nr_telefon,Numeutilizator) VALUES(?,?,?,?,?,?,?,?)";

    String nume=Nume.getText();
    String prenume=Prenume.getText();

    LocalDate data=Data.getValue(); 

    String ora=Ora.getText();
    String departament=Departament.getText();
    String doctor=Doctor.getText();
    String nr_telefon=Nr_telefon.getText();
    String numeutilizator=Numeutilizator.getText();

    try {
        ConectaredB ConectaredB=new ConectaredB();
        Connection conexiune=ConectaredB.logareDB();
        PreparedStatement MG = conexiune.prepareStatement(Interogare1);


        MG.setString(1, nume);
        MG.setString(2, prenume);
        MG.setDate(3, Date.valueOf(data)); 
        MG.setString(4, ora);
        MG.setString(5, departament);
        MG.setString(6, doctor);
        MG.setString(7, nr_telefon);
        MG.setString(8, numeutilizator);

        MG.executeUpdate();

        // ...
   } catch (SQLException exceptie1) {
       exceptie1.printStackTrace(); 
   }


}
}

使用来自数据库的数据为特定用户填充tableview

0 个答案: