谢谢装满鳗鱼的气垫船注意到我的问题充满了混乱的代码，不太可能得到解决。从那时起，我创建了一个“最小”测试程序来显示该问题：
我想要做的是有一个 GUI，它显示包含员工信息的表格，并且还允许用户通过在 GUI 顶部的 jtextfield 中键入内容来对所述表格进行实时搜索。
所以我目前有一个 java 类，它创建一个表并用员工信息填充该表。该信息通过 SQL 语句放入表中，该语句由SwingWorker。 GUI 工作得很好，直到我尝试添加一个TableRowSorter对于包含信息的表，这会产生错误：
Exception in thread "AWT-EventQueue-0" java.lang.IndexOutOfBoundsException: Invalid range
at javax.swing.DefaultRowSorter.checkAgainstModel(Unknown Source)
at javax.swing.DefaultRowSorter.rowsInserted(Unknown Source)
at javax.swing.JTable.notifySorter(Unknown Source)
at javax.swing.JTable.sortedTableChanged(Unknown Source)
at javax.swing.JTable.tableChanged(Unknown Source)
at javax.swing.table.AbstractTableModel.fireTableChanged(Unknown Source)
at javax.swing.table.AbstractTableModel.fireTableRowsInserted(Unknown Source)
at tesPackage.WorkerTest$JDBCModel$JDBCWorker.process(WorkerTest.java:276)
基于此example，这是一个
package tesPackage;
import java.awt.BorderLayout;
import java.util.concurrent.ThreadLocalRandom;
import java.awt.EventQueue;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.ListSelectionModel;
import javax.swing.RowFilter;
import javax.swing.ScrollPaneConstants;
import javax.swing.SwingWorker;
import javax.swing.border.EmptyBorder;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableModel;
import javax.swing.table.TableRowSorter;
/**
* @see https://stackoverflow.com/a/34742409/230513
* @see https://stackoverflow.com/a/24762078/230513
*/
public class WorkerTest {
private static final int N = 25;
private static final String URL = "jdbc:h2:mem:test";
private static final Random r = new Random();
private JPanel contentPane;
private static JTable tblSchedule;
private JScrollPane scrollSchedTable;
private JDBCModel model;
private JPanel panel;
private JTextField textField;
private static TableRowSorter<TableModel> rowSorter;
private void display() {
createTestDatabase(N); //Create the Test Database
//Create the GUI
JFrame f = new JFrame("WorkerTest");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setBounds(100, 100, 780, 450);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
f.setContentPane(contentPane);
contentPane.setLayout(new BorderLayout(0, 0));
{
scrollSchedTable = new JScrollPane();
scrollSchedTable.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
contentPane.add(scrollSchedTable);
{
tblSchedule = new JTable();
tblSchedule.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
tblSchedule.setShowHorizontalLines(true);
tblSchedule.setShowVerticalLines(true);
tblSchedule.setFillsViewportHeight(true);
model = new JDBCModel(getConnection(), "select * from city");
tblSchedule.setModel(model);
rowSorter = new TableRowSorter<TableModel>(model); //IF UNCOMMENT THESE 2 LINES GUI WILL RUN
tblSchedule.setRowSorter(rowSorter); //BUT IF TYPE IN SEARCH BOX THERE IS AN ERROR
scrollSchedTable.setViewportView(tblSchedule);
}
{
panel = new JPanel();
contentPane.add(panel, BorderLayout.NORTH);
panel.setLayout(new BorderLayout(0, 0));
{
textField = new JTextField();
panel.add(textField, BorderLayout.EAST);
textField.setColumns(10);
}
{
panel.add(model.jpb, BorderLayout.CENTER);
}
{
textField.getDocument().addDocumentListener(new DocumentListener(){
@Override
public void insertUpdate(DocumentEvent e) {
String text = textField.getText().trim();
if (text.trim().length() == 0) {
rowSorter.setRowFilter(null);
} else {
rowSorter.setRowFilter(RowFilter.regexFilter("(?i)" + text));
}
}
@Override
public void removeUpdate(DocumentEvent e) {
String text = textField.getText();
if (text.trim().length() == 0) {
rowSorter.setRowFilter(null);
} else {
rowSorter.setRowFilter(RowFilter.regexFilter("(?i)" + text));
}
}
@Override
public void changedUpdate(DocumentEvent e) {
String text = textField.getText();
if (text.trim().length() == 0) {
rowSorter.setRowFilter(null);
} else {
rowSorter.setRowFilter(RowFilter.regexFilter("(?i)" + text));
}
}
});
}
}
}
f.setVisible(true);
}
private static class Row {
String lname;
String fname;
String monTime;
String tueTime;
String wedTime;
String thuTime;
String friTime;
String satTime;
String sunTime;
String totalTime;
}
private static class JDBCModel extends AbstractTableModel {
private final JProgressBar jpb = new JProgressBar();
private static final long serialVersionUID = 1L;
private final List<Row> data = new ArrayList<>();
private ResultSet rs = null;
private ResultSetMetaData meta;
public JDBCModel(Connection conn, String query) {
try {
Statement s = conn.createStatement();
rs = s.executeQuery(query);
meta = rs.getMetaData();
JDBCWorker worker = new JDBCWorker();
jpb.setIndeterminate(true);
worker.execute();
} catch (SQLException e) {
e.printStackTrace(System.err);
}
}
@Override
public int getRowCount() {
return data.size();
}
@Override
public int getColumnCount() {
return 10;
}
@Override
public Object getValueAt(int rowIndex, int colIndex) {
Row row = data.get(rowIndex);
switch (colIndex) {
case 0:
return row.lname;
case 1:
return row.fname;
case 2:
return row.monTime;
case 3:
return row.tueTime;
case 4:
return row.wedTime;
case 5:
return row.thuTime;
case 6:
return row.friTime;
case 7:
return row.satTime;
case 8:
return row.sunTime;
case 9:
return row.totalTime;
}
return null;
}
@Override
public String getColumnName(int colIndex) {
String name = null;
switch(colIndex){
case 0: name = "Last Name";
return name;
case 1: name = "First Name";
return name;
case 2: name = "Monday";
return name;
case 3: name = "Tuesday";
return name;
case 4: name = "Wednesday";
return name;
case 5: name = "Thursday";
return name;
case 6: name = "Friday";
return name;
case 7: name = "Saturday";
return name;
case 8: name = "Sunday";
return name;
case 9: name = "Total";
return name;
}
return name;
}
private class JDBCWorker extends SwingWorker<List<Row>, Row> {
@Override
protected List<Row> doInBackground() {
try {
while (rs.next()) {
Row r = new Row();
Integer total = 0;
r.lname = rs.getString(2);
r.fname = rs.getString(1);
r.monTime = String.valueOf(rs.getInt(3) + " - " + rs.getInt(4));
total += rs.getInt(4) - rs.getInt(3);
r.tueTime = String.valueOf(rs.getInt(5) + " - " + rs.getInt(6));
total += rs.getInt(6) - rs.getInt(5);
r.wedTime = String.valueOf(rs.getInt(7) + " - " + rs.getInt(8));
total += rs.getInt(8) - rs.getInt(7);
r.thuTime = String.valueOf(rs.getInt(9) + " - " + rs.getInt(10));
total += rs.getInt(10) - rs.getInt(9);
r.friTime = String.valueOf(rs.getInt(11) + " - " + rs.getInt(12));
total += rs.getInt(12) - rs.getInt(11);
r.satTime = String.valueOf(rs.getInt(13) + " - " + rs.getInt(14));
total += rs.getInt(14) - rs.getInt(13);
r.sunTime = String.valueOf(rs.getInt(15) + " - " + rs.getInt(16));
total += rs.getInt(16) - rs.getInt(15);
r.totalTime = String.valueOf(total);
publish(r);
}
} catch (SQLException e) {
e.printStackTrace(System.err);
}
return data;
}
@Override
protected void process(List<Row> chunks) {
int n = getRowCount() + 1;
System.out.println("Row Count = " + n);
System.out.println("Chunks Size = " + chunks.size());
for (Row row : chunks) {
data.add(row);
}
fireTableRowsInserted(n, n + chunks.size());
}
@Override
protected void done(){
jpb.setIndeterminate(false);
jpb.setValue(100);
}
}
}
//Creates the Test DB with test names and working hours
private static void createTestDatabase(int n) {
Connection conn = getConnection();
try {
Statement st = conn.createStatement();
st.execute("create table city(fname varchar(10), lname varchar(10), mons int(2), mone int(2), tues int(2), tuee int(2), weds int(2), wede int(2), thus int(2), thue int(2), fris int(2), frie int(2), sats int(2), sate int(2), suns int(2), sune int(2))");
Random gen = new Random();
PreparedStatement ps = conn.prepareStatement(
"insert into city values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)");
for (int i = 0; i < n; i++) {
ps.setString(1, "First" + i);
ps.setString(2, "Last" + i);
ps.setInt(3, ThreadLocalRandom.current().nextInt(6, 12));
ps.setInt(4, ThreadLocalRandom.current().nextInt(13, 22));
ps.setInt(5, ThreadLocalRandom.current().nextInt(6, 12));
ps.setInt(6, ThreadLocalRandom.current().nextInt(13, 22));
ps.setInt(7, ThreadLocalRandom.current().nextInt(6, 12));
ps.setInt(8, ThreadLocalRandom.current().nextInt(13, 22));
ps.setInt(9, ThreadLocalRandom.current().nextInt(6, 12));
ps.setInt(10, ThreadLocalRandom.current().nextInt(13, 22));
ps.setInt(11, ThreadLocalRandom.current().nextInt(6, 12));
ps.setInt(12, ThreadLocalRandom.current().nextInt(13, 22));
ps.setInt(13, ThreadLocalRandom.current().nextInt(6, 12));
ps.setInt(14, ThreadLocalRandom.current().nextInt(13, 22));
ps.setInt(15, ThreadLocalRandom.current().nextInt(6, 12));
ps.setInt(16, ThreadLocalRandom.current().nextInt(13, 22));
ps.execute();
}
} catch (SQLException ex) {
ex.printStackTrace(System.err);
}
}
private static Connection getConnection() {
try {
return DriverManager.getConnection(URL, "", "");
} catch (SQLException e) {
e.printStackTrace(System.err);
}
return null;
}
public static void main(String[] args) {
EventQueue.invokeLater(new WorkerTest()::display);
}
}
所以我开始使用eclipse中的调试功能，当我单步执行程序时，我发现一些事件称为EDT.pumpOneEventForFilters(int)有一个变量叫做arg0（这只是一个参数）其值为-1。一旦进入此事件，就会抛出异常。我不确定这是否是有用的信息，但我想我应该把它扔掉以防万一。
原本的example通知听众JTable实施中的新行process():
fireTableRowsInserted(n, n + chunks.size());
因为该表需要考虑all在对行进行排序和过滤时，模型应通知“侦听器表行中的所有单元格值可能已更改”。
fireTableDataChanged();
顺便说一句，单个实例ThreadLocalRandom就足够了createTestDatabase().
代码，经测试：
import java.awt.BorderLayout;
import java.util.concurrent.ThreadLocalRandom;
import java.awt.EventQueue;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.ListSelectionModel;
import javax.swing.RowFilter;
import javax.swing.ScrollPaneConstants;
import javax.swing.SwingWorker;
import javax.swing.border.EmptyBorder;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableModel;
import javax.swing.table.TableRowSorter;
/**
* @see https://stackoverflow.com/q/43161033/230513
* @see https://stackoverflow.com/a/34742409/230513
* @see https://stackoverflow.com/a/24762078/230513
*/
public class WorkerTest {
private static final int N = 256;
private static final String URL = "jdbc:h2:mem:test";
private static final Random r = new Random();
private JPanel contentPane;
private static JTable tblSchedule;
private JScrollPane scrollSchedTable;
private JDBCModel model;
private JPanel panel;
private JTextField textField;
private static TableRowSorter<TableModel> rowSorter;
private void display() {
createTestDatabase(N); //Create the Test Database
//Create the GUI
JFrame f = new JFrame("WorkerTest");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setBounds(100, 100, 780, 450);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
f.setContentPane(contentPane);
contentPane.setLayout(new BorderLayout(0, 0));
scrollSchedTable = new JScrollPane();
scrollSchedTable.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
contentPane.add(scrollSchedTable);
tblSchedule = new JTable();
tblSchedule.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
tblSchedule.setShowHorizontalLines(true);
tblSchedule.setShowVerticalLines(true);
tblSchedule.setFillsViewportHeight(true);
model = new JDBCModel(getConnection(), "select * from city");
tblSchedule.setModel(model);
rowSorter = new TableRowSorter<TableModel>(model);
tblSchedule.setRowSorter(rowSorter);
scrollSchedTable.setViewportView(tblSchedule);
panel = new JPanel();
contentPane.add(panel, BorderLayout.NORTH);
panel.setLayout(new BorderLayout(0, 0));
textField = new JTextField();
panel.add(textField, BorderLayout.EAST);
textField.setColumns(10);
panel.add(model.jpb, BorderLayout.CENTER);
textField.getDocument().addDocumentListener(new DocumentListener() {
@Override
public void insertUpdate(DocumentEvent e) {
String text = textField.getText().trim();
if (text.trim().length() == 0) {
rowSorter.setRowFilter(null);
} else {
rowSorter.setRowFilter(RowFilter.regexFilter("(?i)" + text));
}
}
@Override
public void removeUpdate(DocumentEvent e) {
String text = textField.getText();
if (text.trim().length() == 0) {
rowSorter.setRowFilter(null);
} else {
rowSorter.setRowFilter(RowFilter.regexFilter("(?i)" + text));
}
}
@Override
public void changedUpdate(DocumentEvent e) {
String text = textField.getText();
if (text.trim().length() == 0) {
rowSorter.setRowFilter(null);
} else {
rowSorter.setRowFilter(RowFilter.regexFilter("(?i)" + text));
}
}
});
f.setVisible(true);
}
private static class Row {
String lname;
String fname;
String monTime;
String tueTime;
String wedTime;
String thuTime;
String friTime;
String satTime;
String sunTime;
String totalTime;
}
private static class JDBCModel extends AbstractTableModel {
private final JProgressBar jpb = new JProgressBar();
private static final long serialVersionUID = 1L;
private final List<Row> data = new ArrayList<>();
private ResultSet rs = null;
private ResultSetMetaData meta;
public JDBCModel(Connection conn, String query) {
try {
Statement s = conn.createStatement();
rs = s.executeQuery(query);
meta = rs.getMetaData();
JDBCWorker worker = new JDBCWorker();
jpb.setIndeterminate(true);
worker.execute();
} catch (SQLException e) {
e.printStackTrace(System.err);
}
}
@Override
public int getRowCount() {
return data.size();
}
@Override
public int getColumnCount() {
return 10;
}
@Override
public Object getValueAt(int rowIndex, int colIndex) {
Row row = data.get(rowIndex);
switch (colIndex) {
case 0:
return row.lname;
case 1:
return row.fname;
case 2:
return row.monTime;
case 3:
return row.tueTime;
case 4:
return row.wedTime;
case 5:
return row.thuTime;
case 6:
return row.friTime;
case 7:
return row.satTime;
case 8:
return row.sunTime;
case 9:
return row.totalTime;
}
return null;
}
@Override
public String getColumnName(int colIndex) {
String name = null;
switch (colIndex) {
case 0:
name = "Last Name";
return name;
case 1:
name = "First Name";
return name;
case 2:
name = "Monday";
return name;
case 3:
name = "Tuesday";
return name;
case 4:
name = "Wednesday";
return name;
case 5:
name = "Thursday";
return name;
case 6:
name = "Friday";
return name;
case 7:
name = "Saturday";
return name;
case 8:
name = "Sunday";
return name;
case 9:
name = "Total";
return name;
}
return name;
}
private class JDBCWorker extends SwingWorker<List<Row>, Row> {
@Override
protected List<Row> doInBackground() {
try {
while (rs.next()) {
Row r = new Row();
Integer total = 0;
r.lname = rs.getString(2);
r.fname = rs.getString(1);
r.monTime = String.valueOf(rs.getInt(3) + " - " + rs.getInt(4));
total += rs.getInt(4) - rs.getInt(3);
r.tueTime = String.valueOf(rs.getInt(5) + " - " + rs.getInt(6));
total += rs.getInt(6) - rs.getInt(5);
r.wedTime = String.valueOf(rs.getInt(7) + " - " + rs.getInt(8));
total += rs.getInt(8) - rs.getInt(7);
r.thuTime = String.valueOf(rs.getInt(9) + " - " + rs.getInt(10));
total += rs.getInt(10) - rs.getInt(9);
r.friTime = String.valueOf(rs.getInt(11) + " - " + rs.getInt(12));
total += rs.getInt(12) - rs.getInt(11);
r.satTime = String.valueOf(rs.getInt(13) + " - " + rs.getInt(14));
total += rs.getInt(14) - rs.getInt(13);
r.sunTime = String.valueOf(rs.getInt(15) + " - " + rs.getInt(16));
total += rs.getInt(16) - rs.getInt(15);
r.totalTime = String.valueOf(total);
publish(r);
}
} catch (SQLException e) {
e.printStackTrace(System.err);
}
return data;
}
@Override
protected void process(List<Row> chunks) {
int n = getRowCount() + 1;
System.out.println("Row Count = " + n);
System.out.println("Chunks Size = " + chunks.size());
for (Row row : chunks) {
data.add(row);
}
fireTableDataChanged();
}
@Override
protected void done() {
jpb.setIndeterminate(false);
jpb.setValue(100);
}
}
}
//Creates the Test DB with test names and working hours
private static void createTestDatabase(int n) {
ThreadLocalRandom r = ThreadLocalRandom.current();
Connection conn = getConnection();
try {
Statement st = conn.createStatement();
st.execute("create table city(fname varchar(10), lname varchar(10), mons int(2), mone int(2), tues int(2), tuee int(2), weds int(2), wede int(2), thus int(2), thue int(2), fris int(2), frie int(2), sats int(2), sate int(2), suns int(2), sune int(2))");
Random gen = new Random();
PreparedStatement ps = conn.prepareStatement(
"insert into city values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)");
for (int i = 0; i < n; i++) {
ps.setString(1, "First" + i);
ps.setString(2, "Last" + i);
ps.setInt(3, r.nextInt(6, 12));
ps.setInt(4, r.nextInt(13, 22));
ps.setInt(5, r.nextInt(6, 12));
ps.setInt(6, r.nextInt(13, 22));
ps.setInt(7, r.nextInt(6, 12));
ps.setInt(8, r.nextInt(13, 22));
ps.setInt(9, r.nextInt(6, 12));
ps.setInt(10, r.nextInt(13, 22));
ps.setInt(11, r.nextInt(6, 12));
ps.setInt(12, r.nextInt(13, 22));
ps.setInt(13, r.nextInt(6, 12));
ps.setInt(14, r.nextInt(13, 22));
ps.setInt(15, r.nextInt(6, 12));
ps.setInt(16, r.nextInt(13, 22));
ps.execute();
}
} catch (SQLException ex) {
ex.printStackTrace(System.err);
}
}
private static Connection getConnection() {
try {
return DriverManager.getConnection(URL, "", "");
} catch (SQLException e) {
e.printStackTrace(System.err);
}
return null;
}
public static void main(String[] args) {
EventQueue.invokeLater(new WorkerTest()::display);
}
}