java - JTable 中的换行、右对齐、自动调整行高-6ren

java - JTable 中的换行、右对齐、自动调整行高

转载作者：行者123 更新时间：2023-11-30 06:03:35

我编写了一个 Java 应用程序，我需要一个具有一些功能的 JTable 类对象:

自动缠绕线
右对齐
自动调整行高(这意味着，例如，行的大小为 25，但表中另一行的大小为 50，行的内容大小)
渲染速度必须高

但是我的代码运行速度不快，并且没有完全的顶级功能，我在最后一个问题中编写了应用程序的最小版本:

这是我的 gui 类:

import javax.swing.*;
import java.awt.*;

public class GUI extends JFrame {
    private BankTable table;
    private JScrollPane scrollPane;

    public GUI(){
        super("Bank Table");
        JPanel contentPanel = new JPanel();
        setContentPane(contentPanel);
        contentPanel.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
        setLayout(new BorderLayout());
        setMinimumSize(new Dimension(1000,700));
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        makeTable();

        scrollPane = new JScrollPane(table);
        scrollPane.getVerticalScrollBar().setUnitIncrement(50);

        add(scrollPane,BorderLayout.CENTER);

        setVisible(true);
    }

    public void makeTable(){
        String[][]data= new String[][]{{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/01"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/02"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/03"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/04"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/05"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/06"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/07"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/08"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/09"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/10"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/11"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/12"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/13"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/14"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/15"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/16"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/17"},
                {"0212670003009", "ص 318", "77081111111111111111111111111111111111634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/18"},
                {"0212670003009", "ص 318", "77081222222222222222222222222222634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/19"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/20"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/21"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/22"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/23"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/24"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/25"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/26"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/27"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/28"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/29"},
                {"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/30"}};

        String[] columns= new String[]{"شماره حساب", "اطلاعات اضافه", "مانده","واریز","برداشت","فیش/ حواله","کد شعبه","شرح","ساعت","تاریخ"};

        table = new BankTable(data,columns);
        table.updateRowHeights();
        System.out.println("Table");
    }

    public static void main(String args[]){
        GUI gui = new GUI();
    }

}

这是表格的渲染:

import java.awt.*;
import javax.swing.*;
import javax.swing.table.TableCellRenderer;

public class TextAreaRenderer extends JTextArea
        implements TableCellRenderer {

    public TextAreaRenderer() {
        setLineWrap(true);
        setWrapStyleWord(true);
        setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);    

        setEditable(false);
        setCursor(null);
        setOpaque(false);
        setFocusable(false);
        setLineWrap(true);
        setWrapStyleWord(true);

    }

    public Component getTableCellRendererComponent(JTable jTable,
                                                   Object obj, boolean isSelected, boolean hasFocus, int row,
                                                   int column) {
        setText((String)obj);
        setFont(new Font("bnazanin", Font.BOLD, 15));

        return this;
    }    
}

这是表类:

import javax.swing.*;
import javax.swing.table.DefaultTableCellRenderer;
import java.awt.*;

public class BankTable extends JTable {

    public BankTable(String[][] data,String[] columns){
        super(data,columns);

        setForeground(Color.BLACK);
        setBounds(60,80,400,600);

        changeTableHeader();

        DefaultTableCellRenderer rightRenderer = new DefaultTableCellRenderer();
        rightRenderer.setHorizontalAlignment(JLabel.RIGHT);

        TextAreaRenderer textAreaRenderer = new TextAreaRenderer();

        for(int i=0 ; i<columns.length ; i++){
            getColumnModel().getColumn(i).setCellRenderer(textAreaRenderer);
        }    
    }

    public void changeTableHeader(){
        getTableHeader().setBackground(new Color(57,77,112));
        getTableHeader().setForeground(Color.WHITE);
        getTableHeader().setFont(new Font("Calibri Light", Font.BOLD, 20));

    }

    @Override
    public boolean isCellEditable(int i, int i1) {
        return false;
    }

    public void updateRowHeights()
    {
        for (int row = 0; row < getRowCount(); row++)
        {
            int rowHeight = getRowHeight();

            for (int column = 0; column < getColumnCount(); column++)
            {
                Component comp = prepareRenderer(getCellRenderer(row, column), row, column);
                rowHeight = Math.max(rowHeight, comp.getPreferredSize().height);
            }
            setRowHeight(row, rowHeight + 20);
        }
    }    
}

编辑: This is a simple for my table

最佳答案

这里有值(value)的是我闲置的一些旧代码。

它使用带有换行功能的 JTextArea，但将文本区域中的行数限制为 2 行。然后，您可以滚动文本区域以查看其他行。

也许这种方法可以满足您的要求？

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.table.*;

public class TableTextArea extends JFrame
{
    public TableTextArea()
    {
        JTable table = new JTable(40, 5);
        table.setPreferredScrollableViewportSize(table.getPreferredSize());
        table.setRowHeight(40);
        table.setValueAt("one two three four five six seven eight nine ten", 0, 2);
        table.setValueAt("aaa bbb ccccc dddd eeee fff ggggg hhhhh iiii jjj", 1, 2);
        table.setValueAt("1111 2222 3333 4444 5555 6666 7777 8888 9999 0000", 0, 4);
        table.setValueAt("one two three four five six seven eight nine ten", 2, 2);
        table.setValueAt("aaa bbb ccccc dddd eeee fff ggggg hhhhh iiii jjj", 3, 2);
        table.setValueAt("1111 2222 3333 4444 5555 6666 7777 8888 9999 0000", 4, 4);
        table.setValueAt("one two three four five six seven eight nine ten", 5, 2);
        table.setValueAt("aaa bbb ccccc dddd eeee fff ggggg hhhhh iiii jjj", 6, 2);
        table.setValueAt("1111 2222 3333 4444 5555 6666 7777 8888 9999 0000", 7, 4);
        table.setValueAt("one two three four five six seven eight nine ten", 8, 2);
        table.setValueAt("aaa bbb ccccc dddd eeee fff ggggg hhhhh iiii jjj", 9, 2);
        table.setValueAt("1111 2222 3333 4444 5555 6666 7777 8888 9999 0000", 10, 4);
        table.setValueAt("one two three four five six seven eight nine ten", 11, 2);
        table.setValueAt("aaa bbb ccccc dddd eeee fff ggggg hhhhh iiii jjj", 12, 2);
        table.setValueAt("1111 2222 3333 4444 5555 6666 7777 8888 9999 0000", 13, 4);
        table.setValueAt("one two three four five six seven eight nine ten", 14, 2);
        table.setValueAt("aaa bbb ccccc dddd eeee fff ggggg hhhhh iiii jjj", 15, 2);
        table.setValueAt("1111 2222 3333 4444 5555 6666 7777 8888 9999 0000", 16, 4);
        table.setValueAt("one two three four five six seven eight nine ten", 17, 2);
        table.setValueAt("aaa bbb ccccc dddd eeee fff ggggg hhhhh iiii jjj", 18, 2);
        table.setValueAt("1111 2222 3333 4444 5555 6666 7777 8888 9999 0000", 19, 4);
        table.setValueAt("one two three four five six seven eight nine ten", 20, 2);
        table.setValueAt("aaa bbb ccccc dddd eeee fff ggggg hhhhh iiii jjj", 21, 2);
        table.setValueAt("1111 2222 3333 4444 5555 6666 7777 8888 9999 0000", 22, 4);
        table.setValueAt("one two three four five six seven eight nine ten", 23, 2);
        table.setValueAt("aaa bbb ccccc dddd eeee fff ggggg hhhhh iiii jjj", 24, 2);
        table.setValueAt("1111 2222 3333 4444 5555 6666 7777 8888 9999 0000", 25, 4);
        table.setValueAt("one two three four five six seven eight nine ten", 26, 2);
        table.setValueAt("aaa bbb ccccc dddd eeee fff ggggg hhhhh iiii jjj", 27, 2);
        table.setValueAt("1111 2222 3333 4444 5555 6666 7777 8888 9999 0000", 28, 4);
        JScrollPane scrollPane = new JScrollPane( table );
        add( scrollPane );

        //  Override default renderer for a specific column

        TableCellRenderer renderer = new TextAreaRenderer();
        table.getColumnModel().getColumn(2).setCellRenderer( renderer );
        table.getColumnModel().getColumn(4).setCellRenderer( renderer );
        table.changeSelection(0, 0, false, false);
    }

    public static void main(String[] args)
    {
        SwingUtilities.invokeLater(new Runnable()
        {
            public void run()
            {
                TableTextArea frame = new TableTextArea();
                frame.setDefaultCloseOperation( EXIT_ON_CLOSE );
                frame.pack();
                frame.setLocationRelativeTo( null );
                frame.setVisible(true);
            }
        });
    }

    /*
    **
    */
    class TextAreaRenderer implements TableCellRenderer
    {
        private JTextArea renderTextArea;
        private JScrollPane renderScrollPane;
        private JTextArea focusTextArea;
        private JScrollPane focusScrollPane;
        private boolean firstTime = true;

        public TextAreaRenderer()
        {
            renderTextArea = new JTextArea();
            renderTextArea.setEditable( false );
            renderTextArea.setLineWrap( true );
            renderTextArea.setWrapStyleWord( true );
            renderScrollPane = new JScrollPane( renderTextArea );
            renderScrollPane.setBorder(null);
            renderScrollPane.revalidate();

            focusTextArea = new JTextArea();
            focusTextArea.setEditable( false );
            focusTextArea.setLineWrap( true );
            focusTextArea.setWrapStyleWord( true );
            focusScrollPane = new JScrollPane( focusTextArea );
            focusScrollPane.setBorder(null);
        }

        public Component getTableCellRendererComponent(
            final JTable table, Object value, boolean isSelected, boolean hasFocus, final int row, final int column)
        {
            //  For some reason the scrollbars don't appear on the first cell renderered.
            //  Forcing a repaint of the cell seems to fix the problem.

            if (firstTime)
            {
                firstTime = false;
                Rectangle cellRectangle = table.getCellRect(row, column, false);
//              renderScrollPane.setBounds(cellRectangle);
//              table.add(renderScrollPane);
//              renderScrollPane.revalidate();
                table.repaint(cellRectangle);
            }

            System.out.println(row + " :: " + column + " : " + hasFocus);
            table.remove(focusScrollPane);

            renderTextArea.setText( value != null ? value.toString() : "" );
            renderTextArea.setCaretPosition(0);

            if (hasFocus)
            {
                renderTextArea.setBackground( table.getSelectionBackground() );

                SwingUtilities.invokeLater( new Runnable()
                {
                    public void run()
                    {
                        addRealTextAreaToTable(table, row, column);
                    }
                });
            }
            else if (isSelected)
                renderTextArea.setBackground( table.getSelectionBackground() );
            else
                renderTextArea.setBackground( table.getBackground() );

            return renderScrollPane;
        }

        private void addRealTextAreaToTable(JTable table, int row, int column)
        {
            System.out.println(row + " :: " + column);
            Object value = table.getValueAt(row, column);
            focusTextArea.setText( value != null ? value.toString() : "" );
            focusTextArea.setCaretPosition(0);
//          focusTextArea.setBackground( table.getBackground() );
            focusTextArea.setBackground( table.getSelectionBackground() );
            Rectangle cellRectangle = table.getCellRect(row, column, false);
            focusScrollPane.setBounds(cellRectangle);
            table.add(focusScrollPane);
            focusScrollPane.revalidate();
            focusTextArea.requestFocusInWindow();
        }
    }
}

关于java - JTable 中的换行、右对齐、自动调整行高，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/51806517/

文章推荐： Java:JLabel 未添加到 JFrame 上

文章推荐： java - 如何使用环境 API 存储 byte[] 数组

jtable - 更新 JTable
我已经多次看到我的问题被问到，但我从未看到我期望的答案。我已经在 JTable 中输入了数据库的元素，并且我希望能够通过一些 JButtons 删除/添加元素。问题是当我添加/删除时，修改在数据库
jtable - JTable 中的单元格编辑
我正在使用 JTable 做一个项目，我想让我的表格单元格可编辑。我用过， public boolean isCellEditable(int row, int column) {
java - Jtable ListSelectionListener 不响应 jtable 操作，而是响应同一个类中的另一个 jtable 操作
我正在编写一个应用程序包，其中包含一个主类，其中主方法与GUI类分开，GUI类包含一个带有jtabbedpane的jframe，它有两个选项卡，第一个选项卡包含一个jtable，称为jtable1，第
java - JTable - 更新 JTable
我制作了一个表格来将 Arraylist 中的数据加粗，但如果我删除该数据，我会希望该表格更新并取消对 Arraylist 中加粗的单元格的粗体显示。我该怎么做呢？或从另一个类关闭该类的实例最佳答案
jtable - 当列按字母顺序排列时获取 JTable 中选定行的实际行索引
如果我的 JTable 的列未按字母顺序排列，我可以使用 getSelectedRows() 并毫无问题地获取它们的行的值。但是，如果用户单击列名并且行在该列中按字母顺序排列，则 getSelecte
jtable - 以编程方式取消选择和编辑 JTable 单元格
我有一个 JTable，用户可以在其中在单元格中输入数据。然后有一个“保存”按钮，用于收集表格数据，将其格式化为 csv，并将其保存到文件中。但是，如果用户将最后编辑的单元格保留在选定状态，并单击“
java - 从另一个 JTable 的选择中创建新的 JTable？
我编写了下面的代码，以便在当前 JTable 上进行选择时创建一个新的 JTable: makeTbale.addActionListener(new ActionListener() { pub
java - 清除一个 JTable 中的数据也会删除另一个 JTable
我正在使用 Swing 编写 Java 应用程序。我有两个表，我必须将内容从一个表复制到另一个表(复制)。问题是，如果我清除目标表行，那么我的源表行也会被删除。如果我按 CopyAll，那么我会将
java - 文件到 JTable、JTable 到文件
我一直致力于JTable，我的项目: 从数据库读取数据(我完成了这个任务并能够在JTable中显示)。然后将数据按子组显示并保存到文件(文本/Excel)中。我有 JTable 的基本知识，并且使
java - 如何在不更改 jTable 的默认列名称的情况下将结果集数据添加到 JTable
我有以下类(class): public class customer_master extends javax.swing.JInternalFrame { Connection con =
java - JTable/JScroll 隐藏行和 JTable
您好，我是 JAVA 的新手，在学习时正在开发 GUI。我创建了一个带有 ScrollPane 和 JTable 的 JFrame。当我增加 2 列以上时，第一行下方的数据不会显示。此外，当我的 J
java - 将 JTable 中的行添加到另一个 JTable
我正在进行项目的最后一部分，这是我遇到的最后问题之一。这部分用于编辑预订，即更改为特定预订预订的房间。我有 2 个 JTable，其中一个有可用房间，另一个有已预订的房间。两者都有单独的 Defaul
java - 将列从一个 jtable 复制到另一个 jtable
我有 2 个 JTable，我需要从表 2 中复制特定列(包括该列中的所有数据)并将其添加到表 1 中的下一个空闲列中。有人知道执行此操作的最佳方法吗？谢谢最佳答案 DefaultTableMod
java - 从另一个 jtable 中选择信息时将信息显示到 jtable
美好的一天!我在 Jtable 方面遇到了困难。我已经阅读和浏览了各种教程，但我不太明白它的要点。我的问题是，我必须从 jtable (jTable1) 中选择包含 (ClientID、LastNam
java - 通过套接字将 JTable 数据从服务器发送到客户端 JTable
我的 SERVER 表单上有一个 JTable，它是从 MySQL 数据库填充的，在构造函数中编码: String sql = "SELECT * from fiekorari"; t
java - 如何将一行从 JTable 复制到另一个 JTable
我在我的项目上工作，我需要将一行从 JTable 复制到另一个 JTable，第二个 JTable 应该只是单行表。我为第一个 JTable 创建了 mouselistener，双击它应该复制行并将其
java - JTable 工作但 JTable 子类不会
我有这段代码可以完全按预期工作 package com.grantbroadwater.signInAssistant.view; import java.awt.BorderLayout; impo
java - 如何将 jTable 的某些部分复制到另一个 jTable？
我有一个列表人员(在 jTable 中)并想将其导出到 excel 文件我需要每个人转到单独的工作表所以我需要拆分原始 jTable，但我不知道如何？这就是我想做的？ public void exp
java - 当键入的文本是 JTable 中的一行时刷新 JTable
我有一个包含 7 列和 2 行的 JTable。在我的 JTable 下方，我有一个 JTextField。当我在 JTextField 中输入内容时，我可以很容易地得到我输入的内容:String l
java - 如何在 JTable 中呈现 JTable？
我正在尝试将一个 JTable 嵌套在另一个 JTable 的列中(使用 CellRenderer)。示例(错误)输出: 为什么下面的例子没有输出表中表？ import java.awt.Compo

行者123

个人简介

我是一名优秀的程序员,十分优秀！

作者热门文章

滴滴打车优惠券免费领取

全站热门文章

首页

博学

6Ren·AI

商城

java - JTable 中的换行、右对齐、自动调整行高