我正在尝试显示所有具有特定cnp的约会,用户使用该cnp进行预约。
用户被要求重新输入他在创建预约时使用的相同cnp,以便查看使用该特定cnp进行的预约。
我想做的是,在查询时,而不是用“?”来添加cnp的值,该值存储在字符串cnp中
p、 我在代码中添加了注解来帮助你们理解。
代码:
package LicentaApp;
public class ProgramariDBController implements Initializable {
@FXML
private TextField cpn; // The user is asked to reenter the same CNP that he did use when he created the appointment
@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();
private ObservableList<DetaliiProgramari> Info;
@Override
public void initialize(URL url, ResourceBundle ResurcesFORDAYS) {
// TODO
}
@FXML
private void AfiseazaProgramari(ActionEvent event) {
try {
ConectaredB ConectaredB=new ConectaredB();
Connection conectare=ConectaredB.logareDB();
Info = FXCollections.observableArrayList();
String CNP=cpn.getText(); // I though making it a string will help, guess it didn't
ResultSet IncDate = conectare.createStatement().executeQuery("SELECT * FROM programari where CNP=?"); // What I want to do, instead of the "?" to add the value of the CNP, that is stored in String cnp
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);
}
}
谢谢您!
删除问题的未来链接
1条答案
按热度按时间webghufk1#
您可以简单地连接字符串。
或者,使用准备好的语句。
编辑
在使用这两种方法时,需要注意列的数据类型。如果
CNP
是字符串(varchar)列,应该包含引号。此外,您可以使用不同的
set...()
方法(如果使用第二种方法)。