我无法填充我的tableview。我认为问题出在控制器中,就像我的数据被发送到FXML文件一样,因为系统输出(见下文)显示了我在数据库中的确切内容。
请让我知道我在哪里犯了错误。我浏览了那些存在的所有教程,但没有什么适合我的问题。
由于
主要应用程序:
package tableview;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;
public class MainApp extends Application {
public static void main(String[] args) {
// TODO Auto-generated method stub
launch(args);
}
@Override
public void start(Stage primaryStage) throws Exception {
Parent root = FXMLLoader.load(getClass().getResource("view/FXMLTable.fxml"));
Scene scene = new Scene(root);
primaryStage.setScene(scene);
primaryStage.show();
}
}
控制器:
import tableview.model.Person;
public class FXMLTableController{
@FXML
public TableView<Person> tableview ;
@FXML
private TableColumn<Person, Number> clientIdColumn;
@FXML
private TableColumn<Person, String> firstNameColumn;
@FXML
private TableColumn<Person, String> lastNameColumn;
@FXML
private void initialize() {
assert tableview != null : "fx:id=\"tableview\" was not injected: check your FXML file 'UserMaster.fxml'.";
clientIdColumn.setCellValueFactory(cellData -> cellData.getValue().
clientIDProperty());
firstNameColumn.setCellValueFactory(cellData -> cellData.getValue()
.firstNameProperty());
lastNameColumn.setCellValueFactory(cellData -> cellData.getValue()
.lastNameProperty());
buildData();
}
private ObservableList<Person> data;
public void buildData(){
data = FXCollections.observableArrayList();
Connection con = null;
try {
Class.forName("org.sqlite.JDBC");
con = DriverManager.getConnection("jdbc:sqlite:tableviewdb.db");
String SQL = "Select * from INFO";
ResultSet rs = con.createStatement().executeQuery(SQL);
while(rs.next()){
Person per = new Person();
per.ClientID.set(rs.getInt("CLIENTID"));
per.FirstName.set(rs.getString("FIRSTNAME"));
per.LastName.set(rs.getString("LASTNAME"));
data.add(per);
}
tableview = new TableView<Person>();
tableview.setItems(data);
System.out.println(tableview.getItems().get(1).ClientID);
}
catch(Exception e){
e.printStackTrace();
System.out.println("Error on Building Data");
}
}
}
模特课程:
package tableview.model;
import javafx.beans.property.IntegerProperty;
import javafx.beans.property.SimpleIntegerProperty;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
public class Person {
public SimpleIntegerProperty ClientID = new SimpleIntegerProperty();
public SimpleStringProperty FirstName = new SimpleStringProperty();
public SimpleStringProperty LastName = new SimpleStringProperty();
public SimpleIntegerProperty getClientID() {
return ClientID;
}
public SimpleStringProperty getFirstname() {
return FirstName;
}
public SimpleStringProperty getLastName() {
return LastName;
}
public IntegerProperty clientIDProperty(){
return ClientID;
}
public StringProperty firstNameProperty(){
return FirstName;
}
public StringProperty lastNameProperty(){
return LastName;
}
}
FXML文件: (暂时忽略保存按钮......)
<?import javafx.scene.control.*?>
<?import java.lang.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.layout.AnchorPane?>
<AnchorPane prefHeight="400.0" prefWidth="600.0" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/8">
<children>
<SplitPane prefHeight="400.0" prefWidth="600.0">
<items>
<SplitPane dividerPositions="0.5" orientation="VERTICAL" prefHeight="200.0" prefWidth="160.0">
<items>
<AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="100.0" prefWidth="160.0">
<children>
<TextField layoutX="93.0" layoutY="34.0" />
<TextField layoutX="93.0" layoutY="85.0" />
<Label layoutX="35.0" layoutY="39.0" text="name" />
<Label layoutX="35.0" layoutY="90.0" text="email" />
<Button layoutX="204.0" layoutY="140.0" mnemonicParsing="false" text="save" />
</children>
</AnchorPane>
<AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="100.0" prefWidth="160.0">
<children>
<TableView layoutY="-2.0" prefHeight="200.0" prefWidth="598.0">
<columns>
<TableColumn prefWidth="302.0" text="name" />
<TableColumn prefWidth="295.0" text="email" />
</columns>
</TableView>
</children>
</AnchorPane>
</items>
</SplitPane>
</items>
</SplitPane>
</children>
</AnchorPane>
答案 0 :(得分:0)
您正在创建新的TableView
并设置其项目,而不是设置FXML文件定义的表格中的项目。
tableView = new TableView<Person>();
来自控制器。
要使用FXML文件中的相应元素填充控制器中的@FXML
- 带注释的字段,您需要为这些元素添加fx:id
属性:
<TableView fx:id="tableview" ... >
<columns>
<TableColumn fx:id="firstNameColumn" ... />
...