I have just migrated from swing to javafx and I cant find a way of adding sqlite data to javafx TableView.
I founded this code on internet:
public class DynamicTable extends Application {
private static final Logger logger = Logger.getLogger(DynamicTable.class.getName());
private static final String[] SAMPLE_NAME_DATA = { "John", "Jill", "Jack", "Jerry" };
public static void main(String[] args) { launch(args); }
@Override public void start(Stage stage) {
final ListView<String> nameView = new ListView();
final Button fetchNames = new Button("Fetch names from the database");
fetchNames.setOnAction(new EventHandler<ActionEvent>() {
@Override public void handle(ActionEvent event) {
fetchNamesFromDatabaseToListView(nameView);
}
});
final Button clearNameList = new Button("Clear the name list");
clearNameList.setOnAction(new EventHandler<ActionEvent>() {
@Override public void handle(ActionEvent event) {
nameView.getItems().clear();
}
});
VBox layout = new VBox(10);
layout.setStyle("-fx-background-color: cornsilk; -fx-padding: 15;");
layout.getChildren().setAll(
HBoxBuilder.create().spacing(10).children(
fetchNames,
clearNameList
).build(),
nameView
);
layout.setPrefHeight(200);
stage.setScene(new Scene(layout));
stage.show();
}
private void fetchNamesFromDatabaseToListView(ListView listView) {
try (Connection con = getConnection()) {
if (!schemaExists(con)) {
createSchema(con);
populateDatabase(con);
}
listView.setItems(fetchNames(con));
} catch (SQLException | ClassNotFoundException ex) {
logger.log(Level.SEVERE, null, ex);
}
}
private Connection getConnection() throws ClassNotFoundException, SQLException {
logger.info("Getting a database connection");
Class.forName("org.sqlite.JDBC");
return DriverManager.getConnection("jdbc:sqlite:C:\\Users\\Raza Ali\\Documents\\NetBeansProjects\\Login\\Data.sqlite");
}
private void createSchema(Connection con) throws SQLException {
logger.info("Creating schema");
Statement st = con.createStatement();
String table = "create table employee(id integer, name varchar(64))";
st.executeUpdate(table);
logger.info("Created schema");
}
private void populateDatabase(Connection con) throws SQLException {
logger.info("Populating database");
Statement st = con.createStatement();
int i = 1;
for (String name: SAMPLE_NAME_DATA) {
st.executeUpdate("insert into employee values(i,'" + name + "')");
i++;
}
logger.info("Populated database");
}
private boolean schemaExists(Connection con) {
logger.info("Checking for Schema existence");
try {
Statement st = con.createStatement();
st.executeQuery("select count(*) from employee");
logger.info("Schema exists");
} catch (SQLException ex) {
logger.info("Existing DB not found will create a new one");
return false;
}
return true;
}
private ObservableList<String> fetchNames(Connection con) throws SQLException {
logger.info("Fetching names from database");
ObservableList<String> names = FXCollections.observableArrayList();
Statement st = con.createStatement();
ResultSet rs = st.executeQuery("select name from Employeeinfo");
while (rs.next()) {
names.add(rs.getString("name"));
}
logger.info("Found " + names.size() + " names");
return names;
}
}
Its not working properly and giving tons of errors and its also difficult to understand is there a simple way like this which is used in swing:
private void Update_table() {
try{
String sql = "select * from Employeeinfo";
pst = conn.prepareStatement(sql);
rs = pst.executeQuery();
Table_Employee.setModel(DbUtils.resultSetToTableModel(rs));
}catch(Exception e) {
JOptionPane.showMessageDialog(null, "Error: " + e);
} finally {
try{
rs.close();
pst.close();
}catch(Exception e){
}
}
}
Aucun commentaire:
Enregistrer un commentaire