我试过了，但我遇到了从组合框中获取所选项目的相应值但无法将值添加到表格视图中相应列的位置
Controller.java
public class controller {
GetConnection gc = new GetConnection();
PreparedStatement pst;
ResultSet rs;
Statement st;
private ObservableList<Users> datas = FXCollections.observableArrayList();
public controller(){}
@FXML
private TableView<Users> table;
@FXML
private TableColumn<Users,String> c1;
@FXML
private TableColumn<Users,String> c2;
@FXML
private TableColumn<Users,String> c3;
@FXML
private void editable() {
try {
ObservableList<Users> datas = FXCollections.observableArrayList();
ObservableList<String> item = FXCollections.observableArrayList();
ObservableList<String> iprice = FXCollections.observableArrayList();
String sql = "select * from itemsadd";
pst = gc.getConnection().prepareStatement(sql);
rs = pst.executeQuery();
while (rs.next()) {
String name = rs.getString("itemcode");
String cat=rs.getString("unitprice");
item.add(name);
iprice.add(cat);
System.out.println("probs" + item);
}
ResultSet rs2 = gc.getConnection().createStatement()
.executeQuery("SELECT * FROM itemsadd WHERE itemcode=1001");
while (rs2.next()) {
datas.add(new Users(rs2.getString("itemcode"),rs2.getString("category"),rs2.getString("unitprice")));
}
c1.setCellValueFactory(new PropertyValueFactory("Itemc"));
c1.setCellFactory(ComboBoxTableCell.forTableColumn(item));
for(String name:item){
c1.setCellValueFactory(new PropertyValueFactory("Itemc"));
c1.setCellFactory(ComboBoxTableCell.forTableColumn(item));
System.out.println("hell3"+name);
}c1.setOnEditCommit( ( TableColumn.CellEditEvent<Users, String> e ) ->
{
String newValue = e.getNewValue();
int index = e.getTablePosition().getRow();
System.out.println("position"+index);
try{
System.out.println("new values"+newValue);
String dsql="SELECT category,unitprice FROM itemsadd WHERE itemcode=?;";
pst=gc.getConnection().prepareStatement(dsql);
pst.setString(1, newValue); //this replaces the 1st "?" in the query for username
rs=pst.executeQuery();
while(rs.next())
{
String category1 = rs.getString(1);
String price1 = rs.getString(2);
System.out.println("category is"+category1);
System.out.println("unitprice is"+price1);
}
}catch(Exception ed){} } );
c2.setCellValueFactory(new PropertyValueFactory("category"));
c2.setCellFactory(TextFieldTableCell.forTableColumn());
c3.setCellValueFactory(new PropertyValueFactory("unitprice"));
c3.setCellFactory(ComboBoxTableCell.forTableColumn(iprice));
table.setEditable(true);
table.getItems().clear();
table.setItems(datas);
} catch (Exception e) {
e.printStackTrace();
System.out.println("Error on Building Data");
}
}
public static class Users {
private StringProperty Itemc;
private StringProperty category;
private StringProperty unitprice;
private Users(String Itemc,String category,String unitprice) {
this.Itemc= new SimpleStringProperty(Itemc);
this.category=new SimpleStringProperty(category);
this.unitprice=new SimpleStringProperty(unitprice);
}
public String getItemc() {
return Itemc.get();
}
public void setItemc(String Itemc) {
this.Itemc.set(Itemc);
}
public StringProperty ItemcProperty() {
return Itemc;
}
public String getcategory() {
return category.get();
}
public void setcategory(String category) {
this.category.set(category);
}
public StringProperty categoryProperty() {
return category;
}
public String getunitprice() {
return unitprice.get();
}
public void setunitprice(String unitprice) {
this.unitprice.set(unitprice);
}
public StringProperty unitpriceProperty() {
return unitprice;
}}
}
Table.fxml
<AnchorPane id="AnchorPane" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="javafxapplication47.controller">
<children>
<TableView fx:id="table" editable="true" layoutX="136.0" layoutY="58.0" onKeyPressed="#editable" prefHeight="200.0" prefWidth="335.0">
<columns>
<TableColumn fx:id="c1" prefWidth="116.0" text="Code" />
<TableColumn fx:id="c2" prefWidth="115.0" text="Address" />
<TableColumn fx:id="c3" prefWidth="102.0" text="Price" />
</columns>
</TableView>
</children>
</AnchorPane>
Tableview.java
public class Tableveiw extends Application {
private Stage primaryStage;
private AnchorPane pane;
@Override
public void start(Stage primaryStage) {
this.primaryStage = primaryStage;
this.primaryStage.setTitle("AddressApp");
showPerson();
}
public void showPerson() {
try {
// Load root layout from fxml file.
FXMLLoader loader = new FXMLLoader();
loader.setLocation(Tableveiw.class
.getResource("table.fxml"));
pane= (AnchorPane) loader.load();
// Show the scene containing the root layout.
Scene scene = new Scene(pane);
primaryStage.setScene(scene);
primaryStage.show();
} catch (IOException e) {
e.printStackTrace();
}}
public static void main(String[] args) {
launch(args);
}
}
GetConnection.java
public class GetConnection{
public Connection getConnection() throws Exception
{
Connection con=null;
try {
System.out.println("MySQL Connect Example.");
String url = "jdbc:mysql://localhost:3306/";
String dbName = "login";
String driver = "com.mysql.jdbc.Driver";
Class.forName(driver).newInstance();
con = DriverManager.getConnection(url+dbName,"root","");
} catch (Exception e) {
e.printStackTrace();
}
return con;
}
public static void main(String arg[])
{
GetConnection con =new GetConnection();
System.out.println("Connection"+con);
}
}
上面的代码是可运行和简化的，程序有一个tableview和三列，第一个columncell是一个包含项目的组合框。第二个columncell是一个可编辑的文本字段，第三个列单元格是一个可组合单元格，其项目在数据库中。每当我在category.java System.out.println（＆＃34; categoryis＆＃34; + category1）的组合框表格单元格中选择值时，我已经尝试过自己获取行中相应值的值。 System.out.println（＆＃34; unitprice是＆＃34; + price1）; 。每当我在表格视图中选择组合框中的项目时，请帮我改变tableview中的值。
答案 0 :(得分：0)
你需要 转到您的单元工厂代码 用于组合框选择更改的1add事件处理程序 获取当前行 获取当前项目 更改您需要的值
答案 1 :(得分：0)
示例ComboBox所选项目更改tableview示例的值。
Tablecombo.java
public class Tablecombo extends Application {
Stage primaryStage;
Scene scene;
String username;
AnchorPane anchorpane;
BorderPane borderpane;
// Pane pane;
BorderPane border;
Stage sstage;
@Override
public void start(Stage primaryStage) {
this.primaryStage = primaryStage;
this.primaryStage.setTitle("Login");
root();
}
public void root() {
try {
FXMLLoader loader = new FXMLLoader();
loader.setLocation(Tablecombo.class.getResource("tcombo.fxml"));
anchorpane = (AnchorPane) loader.load();
Stage dialogStage = new Stage();
dialogStage.setTitle("Main");
dialogStage.initModality(Modality.WINDOW_MODAL);
Scene scene = new Scene(anchorpane);
dialogStage.setScene(scene);
dialogStage.showAndWait();
} catch (IOException e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
launch(args);
}
}
tablecontroller.java
public class tablecontroller {
Tablecombo main;
GetConnection gc = new GetConnection();
PreparedStatement pst;
ResultSet rs;
public tablecontroller(){
}
@FXML
private TableView<UserData> table4;
@FXML
private TableColumn<UserData,String> c1;
@FXML
private TableColumn<UserData,String> c2;
@FXML
private void editable() {
try {
ObservableList<UserData> datas = FXCollections.observableArrayList();
ObservableList<String> names = FXCollections.observableArrayList();
ObservableList<String> rat = FXCollections.observableArrayList();
// ObservableList<Users> datas = FXCollections.observableArrayList();
String sql = "select * from pdfs";
// String msql="select * from category";
pst = gc.getConnection().prepareStatement(sql);
rs = pst.executeQuery();
while (rs.next()) {
String name = rs.getString("name");
String cat=rs.getString("country");
rat.add(cat);
names.add(name);
System.out.println("probs" + names);
}
ResultSet rs2 = gc.getConnection().createStatement().executeQuery("SELECT * FROM pdfs LIMIT 1");
//ObservableList<Users> datas = FXCollections.observableArrayList();
while (rs2.next()) {
datas.add(new UserData(rs2.getString("name"),rs2.getString("country")));
}
c1.setCellValueFactory(new PropertyValueFactory("Itemc"));
c1.setCellFactory(ComboBoxTableCell.forTableColumn(names));
for(String name:names){
c1.setCellValueFactory(new PropertyValueFactory("Itemc"));
// System.out.println("hell2"+name);
c1.setCellFactory(ComboBoxTableCell.forTableColumn(names));
System.out.println("hell3"+name);
}
c1.setOnEditCommit( ( TableColumn.CellEditEvent<UserData, String> e ) ->
{
String newValue = e.getNewValue();
int index = e.getTablePosition().getRow();
System.out.println("position"+index);
try{
ObservableList<UserData> data = FXCollections.observableArrayList();
System.out.println("new values"+newValue);
String dsql="SELECT * FROM pdfs WHERE name=?;";
pst=gc.getConnection().prepareStatement(dsql);
System.out.println("quer"+dsql);
pst.setString(1, newValue); //this replaces the 1st "?" in the query for username
rs=pst.executeQuery();
while(rs.next())
{
data.add(new UserData(rs.getString("name"),rs.getString("country")));
}
table4.setItems(data);
String a = rs.getString(1);
String b = rs.getString(2);
String c = rs.getString(3);
System.out.println("su"+a);
System.out.println("ma"+b);
System.out.println("man"+c);
}catch(Exception ed){} } );
c2.setCellValueFactory(new PropertyValueFactory("quantity"));
c2.setCellFactory(TextFieldTableCell.forTableColumn());
table4.setEditable(true);
table4.setItems(datas);
} catch (Exception e) {
e.printStackTrace();
System.out.println("Error on Building Data");
}
}
}
UserData.java
public class UserData {
private StringProperty Itemc;
private StringProperty quantity;
public UserData(String Itemc,String quantity) {
//this.Quantity = new SimpleStringProperty(Quantity);
this.Itemc= new SimpleStringProperty(Itemc);
this.quantity = new SimpleStringProperty(quantity);
}
public String getItemc() {
return Itemc.get();
}
public void setItemc(String Itemc) {
this.Itemc.set(Itemc);
}
public StringProperty ItemcProperty() {
return Itemc;
}
public void setquantity(String quantity) {
this.quantity.set(quantity);
}
public String getquantity() {
return quantity.get();
}
public StringProperty quantityProperty() {
return quantity;
}
}
tcombo.fxml
<AnchorPane id="AnchorPane" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="tablecombo.tablecontroller">
<children>
<TableView fx:id="table4" layoutX="168.0" layoutY="81.0" onKeyPressed="#editable" prefHeight="200.0" prefWidth="230.0">
<columns>
<TableColumn fx:id="c1" prefWidth="75.0" text="name" />
<TableColumn fx:id="c2" prefWidth="75.0" text="country" />
</columns>
</TableView>
</children>
</AnchorPane>