将搜索textField实现为jTable [英] Implement search textField into jTable
本文介绍了将搜索textField实现为jTable的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
现在我有一个用KeyReleased事件实现的搜索textField，当我开始输入例如来自Andrew的An时，我没有找到/更新jTable，并且在我完成后输入完全（caseSensitive）的名称我想找到。
Now I have a search textField implemented with KeyReleased event, which don't found/update jTable when I start typing for example "An" from "Andrew", and just after I finish to type exactly (caseSensitive) the name which I want to find.
所以，我想要的是从这个 site 但是我遇到了很大的问题。在下面的实现并删除旧的KeyReleased事件后，当我在textfieldtxt_search中输入内容时，jTable没有任何反应。
So, what I want is to implement the Filtering method from this site but I have big problems. After below implementation and removing the "old" KeyReleased event, when I type something in textfield "txt_search" nothing happens with jTable.
我的IDE生成的表代码（NetBeans ）是（从自定义代码面板复制）：
My code of table generated by IDE (NetBeans) is (copied from customize code panel):
Table_Employee = new javax.swing.JTable();
Table_Employee.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {
{null, null, null, null},
{null, null, null, null},
{null, null, null, null},
{null, null, null, null}
},
new String [] {
"Title 1", "Title 2", "Title 3", "Title 4"
}
)
);
Table_Employee.setToolTipText("Employee info table");
Table_Employee.setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR));
Table_Employee.getTableHeader().setReorderingAllowed(false);
Table_Employee.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
Table_EmployeeMouseClicked(evt);
}
});
Table_Employee.addKeyListener(new java.awt.event.KeyAdapter() {
public void keyPressed(java.awt.event.KeyEvent evt) {
Table_EmployeeKeyPressed(evt);
}
});
jScrollPane1.setViewportView(Table_Employee);
我在我的面板类中添加了这个表，其中表是：
and I added this on my panel class where table is:
import java.awt.Toolkit;
import java.awt.event.WindowEvent;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import javax.swing.JOptionPane;
import net.proteanit.sql.DbUtils;
import java.awt.event.*;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.text.*;
import javax.swing.*;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableRowSorter;
public class Employee_info extends javax.swing.JFrame {
Connection conn=null;
ResultSet rs=null;
PreparedStatement pst=null;
private TableRowSorter<DefaultTableModel> sorter;
/**
* Creates new form Employee_info
*/
public Employee_info() {
initComponents();
conn=javaconnect.ConnecrDb();
Update_table();
Fillcombo();
currentDate();
Table_Employee.setAutoCreateRowSorter(true);
Table_Employee.setFillsViewportHeight(true);
Table_Employee.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
DefaultTableModel model = new DefaultTableModel();
sorter = new TableRowSorter<DefaultTableModel>(model);
Table_Employee = new JTable(model);
txt_search = new JTextField();
//Whenever filterText changes, invoke newFilter.
txt_search.getDocument().addDocumentListener(
new DocumentListener() {
public void changedUpdate(DocumentEvent e) {
newFilter();
}
public void insertUpdate(DocumentEvent e) {
newFilter();
}
public void removeUpdate(DocumentEvent e) {
newFilter();
}
});
}
private void newFilter() {
RowFilter<DefaultTableModel, Object> rf = null;
//If current expression doesn't parse, don't update.
try {
rf = RowFilter.regexFilter(txt_search.getText(), 0);
} catch (java.util.regex.PatternSyntaxException e) {
return;
}
sorter.setRowFilter(rf);
}
我真的需要一些帮助，拜托！这是我的最后一次机会，因为我真的做了谷歌搜索解决方案，没有任何改变。
I really need some help, please! This is my last chance, because I really made the google search solutions, and nothing changed.
尊重，
Andrew
With respect, Andrew
推荐答案
-
来自JTable教程的关于过滤和排序的小修改代码
little modiefied code from JTable tutorial about filtering and sorting
过滤JCheckBox你可以把真/假
for filtering for JCheckBox you can to put "true" / "false"
代码
import java.awt.*; import java.util.regex.PatternSyntaxException; import javax.swing.*; import javax.swing.event.*; import javax.swing.table.*; public class TableFilterSorter extends JPanel { private boolean DEBUG = false; private static final long serialVersionUID = 1L; public TableFilterSorter() { super(new BorderLayout(5, 5)); final JTextField filterCpText = new JTextField(); filterCpText.setFont(new Font("Serif", Font.BOLD, 28)); filterCpText.setForeground(Color.BLUE); filterCpText.setBackground(Color.LIGHT_GRAY); JPanel filterCpPanel = new JPanel(); filterCpPanel.setLayout(new BorderLayout(5, 5)); filterCpPanel.setBorder(BorderFactory.createEmptyBorder(1, 1, 1, 1)); filterCpPanel.setBackground(Color.LIGHT_GRAY); filterCpPanel.setPreferredSize(new Dimension(300, 30)); filterCpPanel.add(filterCpText, BorderLayout.CENTER); add(filterCpPanel, BorderLayout.NORTH); final JTable table = new JTable(new MyTableModel()); table.setPreferredScrollableViewportSize(new Dimension(500, 160)); table.setFillsViewportHeight(true); JScrollPane scrollPane = new JScrollPane(table); add(scrollPane, BorderLayout.CENTER); TableModel myTableModel = table.getModel(); final TableRowSorter<TableModel> sorter = new TableRowSorter<TableModel>(myTableModel); table.setRowSorter(sorter); filterCpText.getDocument().addDocumentListener(new DocumentListener() { private void searchFieldChangedUpdate(DocumentEvent evt) { String text = filterCpText.getText(); if (text.length() == 0) { sorter.setRowFilter(null); table.clearSelection(); } else { try { sorter.setRowFilter(RowFilter.regexFilter("(?i)" + text, 4)); table.clearSelection(); } catch (PatternSyntaxException pse) { JOptionPane.showMessageDialog(null, "Bad regex pattern", "Bad regex pattern", JOptionPane.ERROR_MESSAGE); } } } @Override public void insertUpdate(DocumentEvent evt) { searchFieldChangedUpdate(evt); } @Override public void removeUpdate(DocumentEvent evt) { searchFieldChangedUpdate(evt); } @Override public void changedUpdate(DocumentEvent evt) { searchFieldChangedUpdate(evt); } }); } private class MyTableModel extends AbstractTableModel { private static final long serialVersionUID = 1L; private String[] columnNames = {"First Name", "Last Name", "Sport", "# of Years", "Vegetarian"}; private Object[][] data = { {"Mary", "Campione", "Snowboarding", new Integer(5), false}, {"Alison", "Huml", "Rowing", new Integer(3), true}, {"Kathy", "Walrath", "Knitting", new Integer(2), false}, {"Sharon", "Zakhour", "Speed reading", new Integer(20), true}, {"Philip", "Milne", "Pool", new Integer(10), false}, {"Mary", "Campione", "Snowboarding", new Integer(5), false}, {"Alison", "Huml", "Rowing", new Integer(3), true}, {"Kathy", "Walrath", "Knitting", new Integer(2), false}, {"Sharon", "Zakhour", "Speed reading", new Integer(20), true}, {"Philip", "Milne", "Pool", new Integer(10), false},}; @Override public int getColumnCount() { return columnNames.length; } @Override public int getRowCount() { return data.length; } @Override public String getColumnName(int col) { return columnNames[col]; } @Override public Object getValueAt(int row, int col) { return data[row][col]; } @Override public Class<?> getColumnClass(int c) { return getValueAt(0, c).getClass(); } @Override public boolean isCellEditable(int row, int col) { if (col < 2) { return false; } else { return true; } } @Override public void setValueAt(Object value, int row, int col) { if (DEBUG) { System.out.println("Setting value at " + row + "," + col + " to " + value + " (an instance of " + value.getClass() + ")"); } data[row][col] = value; fireTableCellUpdated(row, col); if (DEBUG) { System.out.println("New value of data:"); printDebugData(); } } private void printDebugData() { int numRows = getRowCount(); int numCols = getColumnCount(); for (int i = 0; i < numRows; i++) { System.out.print(" row " + i + ":"); for (int j = 0; j < numCols; j++) { System.out.print(" " + data[i][j]); } System.out.println(); } System.out.println("--------------------------"); } } private static void createAndShowGUI() { JFrame frame = new JFrame("TableDemo"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); TableFilterSorter newContentPane = new TableFilterSorter(); newContentPane.setOpaque(true); frame.setContentPane(newContentPane); frame.setLocation(150, 150); frame.pack(); frame.setVisible(true); } public static void main(String[] args) { javax.swing.SwingUtilities.invokeLater(new Runnable() { @Override public void run() { createAndShowGUI(); } }); } }这篇关于将搜索textField实现为jTable的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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