我有一个费用报告查询，该查询每天生成字段总计（指定为“根”列为1），并提供当天的下拉详细信息（指定为“根”列为2）。我可以直接填充表格视图，没有问题，并且可以直接填充treetableview而不使用FXCollections.observableArrayList()。问题是我需要使用FXCollections.observableArrayList()，因为我将使用rowchecker()和cellchecker()回调，它们使用cellFactory回调来检查单元格值并更改特定单元格的背景或更改填充表格视图时可用的整个行的背景。这是我的目标：
从数据库结果集中填充一个treetableview；隐藏父级，并在每个日期中用“root” = 1和“root” = 2填充treetableview；根据单元格值更改单元格/行的背景颜色。
package TreeTableView;
import java.net.URL;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.text.DecimalFormat;
import java.util.Date;
import java.util.ResourceBundle;
import com.jfoenix.controls.RecursiveTreeItem;
import com.jfoenix.controls.datamodels.treetable.RecursiveTreeObject;
import javafx.beans.property.SimpleIntegerProperty;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.value.ObservableValue;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.TreeItem;
import javafx.scene.control.TreeTableColumn;
import javafx.scene.control.TreeTableView;
import javafx.util.Callback;
public class FXMLDocument implements Initializable{
Connection conn = null;
ResultSet rs = null;
PreparedStatement pst = null;
Integer idjobs = 286; //temp
Integer idjobs_by = 6; //temp
Integer loginID = 4;
@FXML
private TreeTableView<ER_Report> tableview;
ObservableList<ER_Report> ER_report = FXCollections.observableArrayList();
@FXML
private TreeTableColumn<ER_Report, Number> col1;
@FXML
private TreeTableColumn<ER_Report, String> col2;
@FXML
private TreeTableColumn<ER_Report, String> col3;
@FXML
private TreeTableColumn<ER_Report, String> col4;
TreeItem<ER_Report> root;
public void dataset() {
String sql = "SELECT * FROM expensereport_total_withlist where job = '" + idjobs + "' and jobby = '" + idjobs_by + "' and employee = '" + loginID + "' "
+ "order by newSort, root";
try {
pst = conn.prepareStatement(sql);
rs = pst.executeQuery();
while(rs.next()) {
DecimalFormat df2 = new DecimalFormat("###0.00");
DecimalFormat df3 = new DecimalFormat("###0.000");
Integer c_rootI = 0;
Date c_Date;
Integer c_WorkedDayI = 0;
String c_MealsS = "";
String c_AirfareS = "";
c_rootI = rs.getInt("root");
String c_rootS = c_rootI.toString();
c_Date = rs.getDate("newSort");
String c_DateS = c_Date.toString();
c_WorkedDayI = rs.getInt("workedDay");
String c_WorkedDayS = c_WorkedDayI.toString();
Double c_MealsD = rs.getDouble("Meals");
if(c_MealsD > 0) {
c_MealsS = "$ " + df2.format(c_MealsD) ;
}
Double c_airD = rs.getDouble("Meals");
if(c_airD > 0) {
c_AirfareS = "$ " + df2.format(c_airD) ;
}
ER_report.add(new ER_Report(c_rootI, c_DateS,c_MealsS,c_AirfareS));
}
final TreeItem<ER_Report> root = new RecursiveTreeItem<ER_Report>(ER_report, RecursiveTreeObject::getChildren);
col1.setCellValueFactory(new Callback<TreeTableColumn.CellDataFeatures<ER_Report, Number>, ObservableValue<Number>>() {
@Override
public ObservableValue<Number> call(TreeTableColumn.CellDataFeatures<ER_Report, Number> param) {
return param.getValue().getValue().rootProperty;
}
});
col2.setCellValueFactory(new Callback<TreeTableColumn.CellDataFeatures<ER_Report, String>, ObservableValue<String>>() {
@Override
public ObservableValue<String> call(TreeTableColumn.CellDataFeatures<ER_Report, String> param) {
return param.getValue().getValue().newDateProperty;
}
});
col3.setCellValueFactory(new Callback<TreeTableColumn.CellDataFeatures<ER_Report, String>, ObservableValue<String>>() {
@Override
public ObservableValue<String> call(TreeTableColumn.CellDataFeatures<ER_Report, String> param) {
return param.getValue().getValue().mealsProperty;
}
});
col4.setCellValueFactory(new Callback<TreeTableColumn.CellDataFeatures<ER_Report, String>, ObservableValue<String>>() {
@Override
public ObservableValue<String> call(TreeTableColumn.CellDataFeatures<ER_Report, String> param) {
return param.getValue().getValue().airProperty;
}
});
root.getChildren().setAll(root);
tableview.setRoot(root);
}catch(Exception e) {
e.printStackTrace();
}
root = new TreeItem<>(new ER_Report(0, "Name", "None", "None"));
}
@Override
public void initialize(URL arg0, ResourceBundle arg1) {
conn = connector.ConnectDb();
idjobs = 286; //temp
idjobs_by = 6; //temp
dataset();
}
class ER_Report extends RecursiveTreeObject<ER_Report>{
SimpleIntegerProperty rootProperty;
SimpleStringProperty newDateProperty;
SimpleStringProperty mealsProperty;
SimpleStringProperty airProperty;
public ER_Report(Integer root, String newDate, String meals, String air) {
this.rootProperty = new SimpleIntegerProperty(root);
this.newDateProperty = new SimpleStringProperty(newDate);
this.mealsProperty = new SimpleStringProperty(meals);
this.airProperty = new SimpleStringProperty(air);
}
/**
* @return the rootProperty
*/
public SimpleIntegerProperty getRootProperty() {
return rootProperty;
}
/**
* @param rootProperty the rootProperty to set
*/
public void setRootProperty(SimpleIntegerProperty rootProperty) {
this.rootProperty = rootProperty;
}
/**
* @return the newDateProperty
*/
public SimpleStringProperty getNewDateProperty() {
return newDateProperty;
}
/**
* @param newDateProperty the newDateProperty to set
*/
public void setNewDateProperty(SimpleStringProperty newDateProperty) {
this.newDateProperty = newDateProperty;
}
/**
* @return the mealsProperty
*/
public SimpleStringProperty getMealsProperty() {
return mealsProperty;
}
/**
* @param mealsProperty the mealsProperty to set
*/
public void setMealsProperty(SimpleStringProperty mealsProperty) {
this.mealsProperty = mealsProperty;
}
/**
* @return the airProperty
*/
public SimpleStringProperty getAirProperty() {
return airProperty;
}
/**
* @param airProperty the airProperty to set
*/
public void setAirProperty(SimpleStringProperty airProperty) {
this.airProperty = airProperty;
}
}
}
下一步是查询的结果
newSort root Meals Airfare
6/22/2018 1 94.16 756.46
6/22/2018 2 NULL 756.46
6/22/2018 2 38.53 NULL
6/22/2018 2 55.63 NULL
6/27/2018 1 6.92 NULL
6/27/2018 2 3.63 NULL
6/27/2018 2 3.29 NULL
6/29/2018 1 NULL 698.9
6/29/2018 2 NULL 698.9
这是我正在使用的行检查器。我目前没有将要查看的列包含在结果集中，但是您可以看到我将使用的代码。
public void rowchecker() {
Callback<TableColumn<ExpenseReportTable, Integer>, TableCell<ExpenseReportTable, Integer>> cellFactory
= new Callback<TableColumn<ExpenseReportTable, Integer>, TableCell<ExpenseReportTable, Integer>>() {
public TableCell call(TableColumn p) {
TableCell cell = new TableCell<ExpenseReportTable, Integer>() {
@Override
public void updateItem(Integer item, boolean empty) {
super.updateItem(item, empty);
if (!empty) {
TableRow ttr = getTableRow();
if (item == null || empty){
setText(null);
ttr.setStyle("");
setStyle("");
} else {
ttr.setStyle(item.doubleValue() > 0
? "-fx-background-color:lightgreen"
: "-fx-background-color:#FFE793");
setText(item.toString());
setStyle(item.doubleValue() > 0
? "-fx-background-color:green"
: "-fx-background-color:lightgreen");
}
} else {
setText(null);
}
}
private String getString() {
return getItem() == null ? "" : getItem().toString();
}
};
return cell;
}
};
col_NonWorkedDate.setCellFactory(cellFactory);
}
答案 0 :(得分：1)
我能够弄清楚它在哪里工作。下面是代码。
package TreeTableView;
import java.net.URL;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.text.DecimalFormat;
import java.util.Date;
import java.util.ResourceBundle;
import javafx.application.Platform;
import javafx.beans.property.ReadOnlyObjectWrapper;
import javafx.beans.property.SimpleIntegerProperty;
import javafx.beans.property.SimpleStringProperty;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Alert;
import javafx.scene.control.TreeItem;
import javafx.scene.control.TreeTableCell;
import javafx.scene.control.TreeTableColumn;
import javafx.scene.control.TreeTableRow;
import javafx.scene.control.TreeTableView;
import javafx.util.Callback;
public class FXMLDocument implements Initializable{
Connection conn = null;
ResultSet rs = null;
PreparedStatement pst = null;
Integer idjobs;
Integer idjobs_by;
Integer loginID;
@FXML
private TreeTableView<ERItems> tableview;
TreeItem root = new TreeItem<>("rootxxx");
@FXML
private TreeTableColumn<ERItems, Integer> col1;
@FXML
private TreeTableColumn<ERItems, String> col2;
@FXML
private TreeTableColumn<ERItems, String> col3;
@FXML
private TreeTableColumn<ERItems, String> col4;
@Override
public void initialize(URL url, ResourceBundle rb) {
conn = connector.ConnectDb();
idjobs = 286;
idjobs_by = 6;
loginID = 4;
dataset2();
tableview.setEditable(true);
Platform.runLater(() -> {
col2.setCellValueFactory(cellData -> {
if (cellData.getValue().getValue()instanceof ERItems) {
return new ReadOnlyObjectWrapper(cellData.getValue().getValue().getCol_date());
}
return new ReadOnlyObjectWrapper(cellData.getValue().getValue());
});
col3.setCellValueFactory(cellData -> {
if (cellData.getValue().getValue()instanceof ERItems) {
return new ReadOnlyObjectWrapper(cellData.getValue().getValue().getCol_meals());
}
return new ReadOnlyObjectWrapper(cellData.getValue().getValue());
});
col1.setMinWidth(0);
col1.setMaxWidth(0);
col1.setCellValueFactory(cellData -> {
if (cellData.getValue().getValue()instanceof ERItems) {
return new ReadOnlyObjectWrapper(cellData.getValue().getValue().getCol_workedDay());
}
return new ReadOnlyObjectWrapper(cellData.getValue().getValue());
});
col4.setCellValueFactory(cellData -> {
if (cellData.getValue().getValue()instanceof ERItems) {
return new ReadOnlyObjectWrapper(cellData.getValue().getValue().getCol_air());
}
return new ReadOnlyObjectWrapper(cellData.getValue().getValue());
});
tableview.setTreeColumn(col2);
tableview.setRoot(root);
tableview.setShowRoot(false);
rowchecker();
root.setExpanded(true);
});
}
public void dataset2() {
String sql = "SELECT * FROM expensereport_total_withlist where job = '" + idjobs + "' and jobby = '" + idjobs_by + "' and employee = '" + loginID + "' "
+ "order by newSort, root";
try {
pst = conn.prepareStatement(sql);
rs = pst.executeQuery();
String currentDate = null;
String currentRoot = null;
TreeItem<String> tiDate = null;
TreeItem<String> tiRoot = null;
TreeItem<ERItems> nodeRoot = null;
TreeItem<ERItems> nodeChild = null;
ReliantER tiReliantER = null;
TreeItem<ReliantER> nodeItem = null;
Integer inputRowCounter = 0;
while(rs.next()) {
DecimalFormat df2 = new DecimalFormat("###0.00");
DecimalFormat df3 = new DecimalFormat("###0.000");
Integer c_rootI = 0;
Date c_Date;
Integer c_WorkedDayI = 0;
String c_MealsS = "";
String c_AirfareS = "";
c_rootI = rs.getInt("root");
String c_rootS = c_rootI.toString();
c_Date = rs.getDate("newSort");
String c_DateS = c_Date.toString();
c_WorkedDayI = rs.getInt("workedDay");
String c_WorkedDayS = c_WorkedDayI.toString();
Double c_MealsD = rs.getDouble("Meals");
if(c_MealsD > 0) {
c_MealsS = "$ " + df2.format(c_MealsD) ;
}
Double c_airD = rs.getDouble("Airfare");
if(c_airD > 0) {
c_AirfareS = "$ " + df2.format(c_airD) ;
}
if (c_rootI == 1 ){
nodeRoot = new TreeItem<> (new ERItems(rs.getInt("workedDay"), c_DateS, c_MealsS, c_AirfareS));
root.getChildren().add(nodeRoot);
}else{
if(rs.getInt("receiptActive") == 1) {
nodeChild = new TreeItem<> (new ERItems(rs.getInt("workedDay"), c_DateS, c_MealsS, c_AirfareS));
nodeRoot.getChildren().add(nodeChild);
}
}
inputRowCounter = inputRowCounter + 1;
}
} catch (SQLException e) {
e.printStackTrace();
Alert a1 = new Alert(Alert.AlertType.ERROR);
a1.showAndWait();
}
}
public void rowchecker() {
Callback<TreeTableColumn<ERItems, Integer>, TreeTableCell<ERItems, Integer>> cellFactory
= new Callback<TreeTableColumn<ERItems, Integer>, TreeTableCell<ERItems, Integer>>() {
public TreeTableCell call(TreeTableColumn p) {
TreeTableCell cell = new TreeTableCell<ERItems, Integer>() {
@Override
public void updateItem(Integer item, boolean empty) {
super.updateItem(item, empty);
if (!empty) {
TreeTableRow ttr = getTreeTableRow();
if (item == null || empty){
setText(null);
ttr.setStyle("");
setStyle("");
} else {
ttr.setStyle(item.doubleValue() > 0
? ""
: "-fx-background-color:#FFE793");
setText(item.toString());
// setStyle(item.doubleValue() > 0
// ? "-fx-background-color:green"
// : "-fx-background-color:lightgreen");
}
} else {
setText(null);
}
}
private String getString() {
return getItem() == null ? "" : getItem().toString();
}
};
return cell;
}
};
col1.setCellFactory(cellFactory);
}
public static class ERItems {
private final SimpleIntegerProperty col_workedDay;
private final SimpleStringProperty col_meals;
private final SimpleStringProperty col_air;
private final SimpleStringProperty col_date;
private ERItems(Integer col_workedDay, String col_date, String col_meals, String col_air) {
this.col_workedDay = new SimpleIntegerProperty(col_workedDay);
this.col_date = new SimpleStringProperty(col_date);
this.col_meals = new SimpleStringProperty(col_meals);
this.col_air = new SimpleStringProperty(col_air);
}
public String getCol_meals() {
return col_meals.get();
}
public String getCol_air() {
return col_air.get();
}
public String getCol_date() {
return col_date.get();
}
public Integer getCol_workedDay() {
return col_workedDay.get();
}
}
}
现在，它给了我树状表，其中包含每日总计的父行和该日个人收据的子行。然后，行检查器查看col1以查看员工是否记录了一天的工作时间，并突出显示该行是否有支出。
