Java 是否有一种方法可以根据在textfield中输入的数据突出显示或着色各种表格行？

我想做的是突出显示我从一盒物品中扫描的序列号

因此，当我扫描序列号时，我的想法是，包含框中项目的表格会改变它们的颜色。我的英语糟透了，所以我认为图像可以更好地解释我的想法

因此，我的代码执行以下操作：

首先，我用方框1（“Gaveta”）中的信息加载表格：

然后，当我过滤框中项目的序列号时：

我面对我的问题，搜索绘制了正确的序列号，但它损坏了我的tablemodel

我的代码：

数据搜索：

公共无效buscarNumeroSerie（字符串nserie） { 试一试{

             String [] campos={"NUMERO_SERIE","MARCA","GAVETA"};
             String filtroNS = nserie;
             String NSSQL = "SELECT NUMERO_SERIE,MARCA,GAVETA FROM"
                     + "(SELECT NUMERO_SERIE,MARCA,GAVETA FROM discos_wd "
                     + "UNION "
                     + "SELECT NUMERO_SERIE,MARCA,GAVETA FROM discos_toshiba "
                     + "UNION "
                     + "SELECT NUMERO_SERIE,MARCA,GAVETA FROM discos_seagate "
                     + "UNION "
                     + "SELECT NUMERO_SERIE,MARCA,GAVETA FROM discos_samsung "
                     + "UNION "
                     + "SELECT NUMERO_SERIE,MARCA,GAVETA FROM discos_hitachi )"
                     + "AS TROUBLE WHERE NUMERO_SERIE LIKE '%"+filtroNS+"%'";

            System.out.println(NSSQL); 
                    nsconn = metodosPool.dataSource.getConnection();
                    //ModeloTablaLista = new DefaultTableModel(null, campos);
                    stmnt = nsconn.prepareStatement(NSSQL);
                    ResultSet nsrs = stmnt.executeQuery(NSSQL);
                    String [] nsfila = null;
            //if(nsrs.next()== true){
             //       String [] nsfila = new String[3];



                while (nsrs.next())
                    {   
                        nsfila = new String[3];
                        nsfila[0]=nsrs.getString("Numero_Serie");
                        nsfila[1]=nsrs.getString("Marca");
                        nsfila[2]=nsrs.getString("Gaveta");
                       // ModeloTablaLista.addRow(nsfila);
                    }

                if (nsfila == null) 
                    {
                               Object[] opcionesPurga = {"Agregar Disco Hitachi",
                                   "Agregar Disco Toshiba",
                                   "Agregar Disco Seagate",
                                   "Agregar Disco Samsung",
                                   "Agregar Disco WD",
                                   "Omitir"};

                               int sinDiscoEnTabla = JOptionPane.showOptionDialog
                                            (rootPane, 
                                            "Disco no encontrado, ¿que desea hacer?:", 
                                            "Disco no encontrado", 
                                            JOptionPane.YES_NO_OPTION, 
                                            JOptionPane.QUESTION_MESSAGE, 
                                            null, 
                                            opcionesPurga,
                                            opcionesPurga[1]);

                               System.out.println(sinDiscoEnTabla);

                    switch (sinDiscoEnTabla){

                            case 0:
                            sinDiscoAddHi.setVisible(true);
                            break;

                            case 1:
                            sinDiscoAddTo.setVisible(true);    
                            break;

                            case 2:
                            sinDiscoAddSe.setVisible(true);      
                            break;

                            case 3:
                            sinDiscoAddHi.setVisible(true);        
                            break;

                            case 4:
                            sinDiscoAddWD.setVisible(true);        
                            break;

                            case 5:
                            JOptionPane.showMessageDialog(null,"Por favor ingrese un nuevo disco:");  
                            tfNumeroSeriePurga.setText("");
                            break;
                    }
                    }
                nsrs.close();
                        stmnt.close();
                       // tablaDiscosGaveta.setModel(ModeloTablaLista);
                        ClaseColor colorear = new ClaseColor(0);
                        tablaDiscosGaveta.getColumnModel().getColumn(0).setCellRenderer(colorear);
           }

           //else
           //  {

            //    System.err.println("No existen datos asociados");
            //         JOptionPane.showMessageDialog(rootPane, "Disco no encontrado, quiere:");
           //    } 


catch (SQLException nseerr) 
                    {
                      System.err.println(""+nseerr.getSQLState());
                      JOptionPane.showMessageDialog(null, "Error al buscar \n"
                      +nseerr, "Error en la operacion ", JOptionPane.ERROR_MESSAGE);
                    }                    

}  

表渲染器：

公共类ClasecColor扩展了DefaultTableCellRenderer{

private final int patron;  

public ClaseColor(int patron) {
    this.patron = patron;
}

@Override
public Component getTableCellRendererComponent
           (JTable tablaDiscosGaveta, 
            Object value, 
            boolean Selected, 
            boolean hasFocus, 
            int row, 
            int col) 
    {

    if (!tfNumeroSeriePurga.getText().equals(tablaDiscosGaveta.getValueAt(row, patron).toString())) 

    {
        System.out.println("FramePurgar.PurgarDiscos1.ClaseColor.methodName()"+"no pille nada !");
    } 
   else
    {
        setForeground(Color.RED);
        //setFont(font);
        //
        super.getTableCellRendererComponent(tablaDiscosGaveta, value, Selected, hasFocus, row, col);
        return this;
    }

归还这个

} }

我要做的是绘制每个序列号，它与执行搜索的文本字段“序列号”匹配

大概是这样的：

---

因此，我搜索任何新的序列号，在我不断扫描序列号的同时得到一个标记，然后将未标记的序列号从表中删除。

由于您没有给我们一个新的序列号，我创建了我自己的示例，以向您展示如何做到这一点。在

JTable

中使用下划线将非常棘手，因为（我认为）JTextPane是必需的。但是，通过突出显示表单元格中的搜索文本，更容易实现类似的功能。当然，为了实现这一点，我们需要创建自己的自定义

代码：

public class TableExample extends JFrame {
    private static final Color HIGHLIGHT_COLOR = Color.GREEN;
    private JTextField textField;

    TableExample() {
        String data[][] = { { "101", "Mike", "17" }, { "102", "Thomas", "21" }, { "103", "Brian", "42" }, { "104", "George", "24" } };
        String column[] = { "ID", "NAME", "AGE" };

        JPanel inputpanel = new JPanel(new BorderLayout(10, 10));

        JTable table = new JTable();
        JScrollPane sp = new JScrollPane(table); // You were not adding the sp into your panel, take care that next time.
        DefaultTableModel dtm = new DefaultTableModel(data, column); // Create the model with our data.
        table.setModel(dtm);
        table.setDefaultRenderer(Object.class, new CellHighlightRenderer());

        textField = new JTextField();
        textField.getDocument().addDocumentListener(new DocumentListener() {

            @Override
            public void removeUpdate(DocumentEvent e) {
                table.repaint();

            }

            @Override
            public void insertUpdate(DocumentEvent e) {
                table.repaint();
            }

            @Override
            public void changedUpdate(DocumentEvent e) {
                table.repaint();
            }
        });

        inputpanel.add(textField, BorderLayout.PAGE_START);
        inputpanel.add(sp);

        add(inputpanel);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setSize(300, 400);
        setLocationRelativeTo(null);
        pack();
    }

    class CellHighlightRenderer extends JTextField implements TableCellRenderer {
        public DefaultHighlighter high = new DefaultHighlighter();
        public DefaultHighlighter.DefaultHighlightPainter highlight_painter = new DefaultHighlighter.DefaultHighlightPainter(HIGHLIGHT_COLOR);

        public CellHighlightRenderer() {
            setBorder(BorderFactory.createEmptyBorder());
            setHighlighter(high);
        }

        @Override
        public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
            setBackground(isSelected ? table.getSelectionBackground() : table.getBackground());
            setForeground(isSelected ? table.getSelectionForeground() : table.getForeground());

            setFont(table.getFont());
            setValue(value);
            int pos = 0;
            String word = textField.getText();
            word = word.toLowerCase();// In order to improve search?
            String stringValue = value.toString();
            stringValue = stringValue.toLowerCase(); // In order to improve search?
            if (!word.isEmpty()) {
                if ((pos = stringValue.indexOf(word, pos)) >= 0) {
                    try {
                        high.addHighlight(pos, pos + word.length(), highlight_painter);
                        pos += word.length();
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
            }
            return this;
        }

        protected void setValue(Object value) {
            setText((value == null) ? "" : value.toString());
        }
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(() -> {
            TableExample te = new TableExample();
            te.setVisible(true);
        });

    }
}

---

预览：

public class TableExample extends JFrame {
    private static final Color HIGHLIGHT_COLOR = Color.GREEN;
    private JTextField textField;

    TableExample() {
        String data[][] = { { "101", "Mike", "17" }, { "102", "Thomas", "21" }, { "103", "Brian", "42" }, { "104", "George", "24" } };
        String column[] = { "ID", "NAME", "AGE" };

        JPanel inputpanel = new JPanel(new BorderLayout(10, 10));

        JTable table = new JTable();
        JScrollPane sp = new JScrollPane(table); // You were not adding the sp into your panel, take care that next time.
        DefaultTableModel dtm = new DefaultTableModel(data, column); // Create the model with our data.
        table.setModel(dtm);
        table.setDefaultRenderer(Object.class, new CellHighlightRenderer());

        textField = new JTextField();
        textField.getDocument().addDocumentListener(new DocumentListener() {

            @Override
            public void removeUpdate(DocumentEvent e) {
                table.repaint();

            }

            @Override
            public void insertUpdate(DocumentEvent e) {
                table.repaint();
            }

            @Override
            public void changedUpdate(DocumentEvent e) {
                table.repaint();
            }
        });

        inputpanel.add(textField, BorderLayout.PAGE_START);
        inputpanel.add(sp);

        add(inputpanel);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setSize(300, 400);
        setLocationRelativeTo(null);
        pack();
    }

    class CellHighlightRenderer extends JTextField implements TableCellRenderer {
        public DefaultHighlighter high = new DefaultHighlighter();
        public DefaultHighlighter.DefaultHighlightPainter highlight_painter = new DefaultHighlighter.DefaultHighlightPainter(HIGHLIGHT_COLOR);

        public CellHighlightRenderer() {
            setBorder(BorderFactory.createEmptyBorder());
            setHighlighter(high);
        }

        @Override
        public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
            setBackground(isSelected ? table.getSelectionBackground() : table.getBackground());
            setForeground(isSelected ? table.getSelectionForeground() : table.getForeground());

            setFont(table.getFont());
            setValue(value);
            int pos = 0;
            String word = textField.getText();
            word = word.toLowerCase();// In order to improve search?
            String stringValue = value.toString();
            stringValue = stringValue.toLowerCase(); // In order to improve search?
            if (!word.isEmpty()) {
                if ((pos = stringValue.indexOf(word, pos)) >= 0) {
                    try {
                        high.addHighlight(pos, pos + word.length(), highlight_painter);
                        pos += word.length();
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
            }
            return this;
        }

        protected void setValue(Object value) {
            setText((value == null) ? "" : value.toString());
        }
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(() -> {
            TableExample te = new TableExample();
            te.setVisible(true);
        });

    }
}

---

实际上我可以做我想做的事情，现在我必须细化一些细节

首先是渲染器代码：

 public class ClaseColor extends DefaultTableCellRenderer {

private final int patronSerie;

public ClaseColor(int patron) {
    this.patronSerie = patron;
}

@Override
public Component getTableCellRendererComponent
           (JTable tablaDiscosGaveta, 
            Object value, 
            boolean Selected, 
            boolean hasFocus, 
            int row, 
            int col) 
    {
    Component comp = super.getTableCellRendererComponent(tablaDiscosGaveta, col, rootPaneCheckingEnabled, rootPaneCheckingEnabled, row, col);

    for (int i = 0; i < tablaDiscosGaveta.getRowCount(); i++) 
    {
                        if(tablaDiscosGaveta.getValueAt(i, 0).toString().equals(tfNumeroSeriePurga.getText()))
                        {
                        System.out.println("El número si existe");
                        }
                        else
                        {
                        System.out.println("El número no existe");
                        }

    if (!tablaDiscosGaveta.isRowSelected(row))
            {
                comp.setBackground(getBackground());
                                    int modelRow = tablaDiscosGaveta.convertRowIndexToModel(row);
                if(tablaDiscosGaveta.getValueAt(i, 0).toString().equals(tfNumeroSeriePurga.getText()))
                                    {
                comp.setBackground(Color.GREEN);

            }
    }}return this;}

有了这个，我可以过滤并在匹配过滤器时将背景设置为绿色

但它在过滤时只显示“零”，所以我需要修正它

---

最终更新此时，我修复了更改以下行的值时出现的问题：

   Component comp = super.getTableCellRendererComponent(tablaDiscosGaveta, col, rootPaneCheckingEnabled, rootPaneCheckingEnabled, row, col);

为了

---

也许可以使用筛选器仅显示包含您正在搜索的测试的行。这样，您就不需要滚动整个表来查找突出显示的文本。请阅读Swing教程中的部分，例如，在文本字段中键入时进行筛选。这对我帮助很大，执行过程类似，因此我使用d那太感谢了！@AlexisAhumada我很高兴它帮助了你。但我认为你认为错误的答案是正确的。：P

        Component comp = super.getTableCellRendererComponent(tablaDiscosGaveta, value, rootPaneCheckingEnabled, rootPaneCheckingEnabled, row, col);