使用 JPanel 列表制作表格（应用百分比大小列）
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【中文标题】使用 JPanel 列表制作表格（应用百分比大小列）【英文标题】：Making Table With List Of JPanels ( With Applying Percentage Size Columns ) 【发布时间】：2019-01-23 13:52:21 【问题描述】：在这篇Making Table With List Of JPanels 的帖子中，我可以制作一个包含面板列表的表格。这个表有很多特性，但我需要一个新特性，它正在应用百分比列。这意味着我喜欢所有列的宽度不等于并用浮点数组确定。 这是我的班级表：
import javax.swing.*;
import java.awt.*;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.Vector;
public class PanelTable extends JPanel
private String data[][];
private String columns[];
private int numberOfRows;
private int numberOfColumns;
private JTextArea[] header;
private JTextArea[][] cell;
public PanelTable(String data[][], String columns[])
setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
this.data = data;
this.columns = columns;
numberOfRows = data.length;
numberOfColumns = columns.length;
makeHeader();
makeCells();
public void makeCells()
cell = new JTextArea[numberOfRows][numberOfColumns];
for (int rowIndex = 0; rowIndex < numberOfRows; rowIndex++)
add(getRow(numberOfColumns, rowIndex));
public void makeHeader()
header = new JTextArea[numberOfColumns];
for (int columnIndex = 0; columnIndex < numberOfColumns; columnIndex++)
JTextArea ta = new JTextArea();
ta.setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
ta.setBackground(new Color(57, 77, 112));
ta.setForeground(Color.WHITE);
ta.setText(columns[columnIndex]);
ta.setFont(new Font("Calibri Light", Font.BOLD, 25));
ta.setLineWrap(true);
ta.setWrapStyleWord(true);
ta.setEditable(false);
header[columnIndex] = ta;
JPanel rowHeader = new JPanel();
rowHeader.setLayout(new BoxLayout(rowHeader, BoxLayout.X_AXIS));
for (int i = 0; i < numberOfColumns; i++)
rowHeader.add(header[i]);
add(rowHeader);
public Component getRow(int numberOfColumns, int rowIndex)
JPanel row = new JPanel();
//use GridLayout if you want equally spaced columns
row.setLayout(new BoxLayout(row, BoxLayout.X_AXIS));
for (int columnIndex = 0; columnIndex < numberOfColumns; columnIndex++)
row.add(getCell(rowIndex, columnIndex));
return row;
public Component getCell(int rowIndex, int columnIndex)
if (cell[rowIndex][columnIndex] == null)
JTextArea ta = new JTextArea();
ta.setLineWrap(true);
ta.setWrapStyleWord(true);
ta.setEditable(false);
ta.setSize(50, ta.getHeight());
ta.setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
ta.setBorder(BorderFactory.createLineBorder(Color.BLACK));
ta.setText(data[rowIndex][columnIndex]);
ta.setFont(new Font("Bmitra", Font.BOLD, 15));
cell[rowIndex][columnIndex] = ta;
return cell[rowIndex][columnIndex];
这是一个用于测试的 gui 示例：
import javax.swing.*;
import java.awt.*;
public class GUI extends JFrame
private PanelTable 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);
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", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/18",
"0212670003009", "ص 318", "77081634","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","380dddddddddddddddddddddddddddddddddddddddddddddddddddddddd00000","0","331142","2102","وصول چک","08:56:46","1397/05/21",
"0212670003009", "ص 318", "77081634","380dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd00000","0","331142","2102","وصول چک","08:56:46","1397/05/22",
"0212670003009", "ص 318", "77081634","3800ddddddddddddddddddddddddddddddddddddddddd0000","0","331142","2102","وصول چک","08:56:46","1397/05/23",
"0212670003009", "ص 318", "77081634","38000ddddddddddddddddddddddddddddddddddddddddddddddddddd000","0","331142","2102","وصول چک","08:56:46","1397/05/24",
"0212670003009", "ص 318", "77081634","38000ddddddddddddddddddddddddddddddddddddddd000","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","1397/05/15",
"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", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/18",
"0212670003009", "ص 318", "77081634","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","380dddddddddddddddddddddddddddddddddddddddddddddddddddddddd00000","0","331142","2102","وصول چک","08:56:46","1397/05/21",
"0212670003009", "ص 318", "77081634","380dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd00000","0","331142","2102","وصول چک","08:56:46","1397/05/22",
"0212670003009", "ص 318", "77081634","3800ddddddddddddddddddddddddddddddddddddddddd0000","0","331142","2102","وصول چک","08:56:46","1397/05/23",
"0212670003009", "ص 318", "77081634","38000ddddddddddddddddddddddddddddddddddddddddddddddddddd000","0","331142","2102","وصول چک","08:56:46","1397/05/24",
"0212670003009", "ص 318", "77081634","38000ddddddddddddddddddddddddddddddddddddddd000","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","1397/05/15",
"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", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/18",
"0212670003009", "ص 318", "77081634","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","380dddddddddddddddddddddddddddddddddddddddddddddddddddddddd00000","0","331142","2102","وصول چک","08:56:46","1397/05/21",
"0212670003009", "ص 318", "77081634","380dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd00000","0","331142","2102","وصول چک","08:56:46","1397/05/22",
"0212670003009", "ص 318", "77081634","3800ddddddddddddddddddddddddddddddddddddddddd0000","0","331142","2102","وصول چک","08:56:46","1397/05/23",
"0212670003009", "ص 318", "77081634","38000ddddddddddddddddddddddddddddddddddddddddddddddddddd000","0","331142","2102","وصول چک","08:56:46","1397/05/24",
"0212670003009", "ص 318", "77081634","38000ddddddddddddddddddddddddddddddddddddddd000","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","1397/05/15",
"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", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/18",
"0212670003009", "ص 318", "77081634","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","380dddddddddddddddddddddddddddddddddddddddddddddddddddddddd00000","0","331142","2102","وصول چک","08:56:46","1397/05/21",
"0212670003009", "ص 318", "77081634","380dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd00000","0","331142","2102","وصول چک","08:56:46","1397/05/22",
"0212670003009", "ص 318", "77081634","3800ddddddddddddddddddddddddddddddddddddddddd0000","0","331142","2102","وصول چک","08:56:46","1397/05/23",
"0212670003009", "ص 318", "77081634","38000ddddddddddddddddddddddddddddddddddddddddddddddddddd000","0","331142","2102","وصول چک","08:56:46","1397/05/24",
"0212670003009", "ص 318", "77081634","38000ddddddddddddddddddddddddddddddddddddddd000","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[]"ستون ۲", "ستون ۱", "ستون ۱۰","ستون ۹","ستون ۸","ستون ۷","ستون ۶","ستون ۵","ستون ۴","ستون ۳";
PanelTable table = new PanelTable(data,columns);
scrollPane = new JScrollPane(table);
scrollPane.getVerticalScrollBar().setUnitIncrement(50);
add(scrollPane,BorderLayout.CENTER);
setVisible(true);
public static void main(String args[])
GUI gui =new GUI();
【问题讨论】：
请通过添加测试数据和JFarme使其成为minimal reproducible example
@c0der 我添加了一个用于测试的 GUI 类。
【参考方案1】：
这样做： 首先创建一个宽度大小的数组。例如：
final int[] columnsWidth = 300, 100, 50, 300, 50 ;
然后在你的方法 makeHeader 和 getCell 上，你设置文本区域的所有属性，也设置首选大小。请参阅下面的代码。这应该会根据大小数组为您提供宽度。
ta.setPreferredSize(new Dimension(columnsWidth[columnIndex], ta.getHeight()));
让我知道它是否适合你:)
下面是完整的代码： 对于图形用户界面：
import javax.swing.*;
import java.awt.*;
public class GUI extends JFrame
private PanelTable2 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);
final String[] columns = "Big Column", "Serodys", "Ramírez", "Entrada", "MercaSur" ;
final String[][] data = "2323", "Hundreds","2323", "Hundreds","2323","2323", "Hundreds","2323", "Hundreds","2323";
// final PanelTable22 panel = new PanelTable22(data, columns);
System.out.println("Hey");
PanelTable2 table = new PanelTable2(data,columns);
System.out.println("!!!");
scrollPane = new JScrollPane(table);
scrollPane.getVerticalScrollBar().setUnitIncrement(50);
add(scrollPane,BorderLayout.CENTER);
setVisible(true);
public static void main(String args[])
GUI gui =new GUI();
对于表模型：
import java.awt.Color;
import java.awt.Component;
import java.awt.ComponentOrientation;
import java.awt.Dimension;
import java.awt.Font;
import javax.swing.BorderFactory;
import javax.swing.BoxLayout;
import javax.swing.JPanel;
import javax.swing.JTextArea;
public class PanelTable2 extends JPanel
private String data[][];
private String columns[];
private int numberOfRows;
private int numberOfColumns;
private JTextArea[] header;
private JTextArea[][] cell;
final int[] columnsWidth = 300, 100, 50, 300, 50 ;
public PanelTable2(String data[][], String columns[])
setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
this.data = data;
this.columns = columns;
numberOfRows = data.length;
numberOfColumns = columns.length;
makeHeader();
makeCells();
public void makeCells()
cell = new JTextArea[numberOfRows][numberOfColumns];
for (int rowIndex = 0; rowIndex < numberOfRows; rowIndex++)
add(getRow(numberOfColumns, rowIndex));
public void makeHeader()
header = new JTextArea[numberOfColumns];
for (int columnIndex = 0; columnIndex < numberOfColumns; columnIndex++)
JTextArea ta = new JTextArea();
ta.setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
ta.setPreferredSize(new Dimension(columnsWidth[columnIndex], ta.getHeight()));
ta.setBackground(new Color(57, 77, 112));
ta.setForeground(Color.WHITE);
ta.setText(columns[columnIndex]);
ta.setFont(new Font("Calibri Light", Font.BOLD, 25));
ta.setLineWrap(true);
ta.setWrapStyleWord(true);
ta.setEditable(false);
header[columnIndex] = ta;
JPanel rowHeader = new JPanel();
rowHeader.setLayout(new BoxLayout(rowHeader, BoxLayout.X_AXIS));
for (int i = 0; i < numberOfColumns; i++)
rowHeader.add(header[i]);
add(rowHeader);
public Component getRow(int numberOfColumns, int rowIndex)
JPanel row = new JPanel();
//use GridLayout if you want equally spaced columns
row.setLayout(new BoxLayout(row, BoxLayout.X_AXIS));
for (int columnIndex = 0; columnIndex < numberOfColumns; columnIndex++)
row.add(getCell(rowIndex, columnIndex));
return row;
public Component getCell(int rowIndex, int columnIndex)
if (cell[rowIndex][columnIndex] == null)
JTextArea ta = new JTextArea();
ta.setLineWrap(true);
ta.setWrapStyleWord(true);
ta.setEditable(false);
ta.setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
ta.setBorder(BorderFactory.createLineBorder(Color.BLACK));
ta.setText(data[rowIndex][columnIndex]);
ta.setFont(new Font("Bmitra", Font.BOLD, 15));
ta.setPreferredSize(new Dimension(columnsWidth[columnIndex], ta.getHeight()));
cell[rowIndex][columnIndex] = ta;
return cell[rowIndex][columnIndex];
【讨论】：
感谢您的尝试，但我以前写过这段代码，我尝试了新的时间，但 不 工作 我明白了。我拿走了你的代码，它适用于我发布的更改。不知道为什么它不能在你的最后工作.. 上面的数组仅适用于我测试过的 5 列数据。您是否遇到任何错误，或者只是没有改变宽度。 我将您的数组大小更改为更喜欢大小 (10)，但它只是没有改变。请给我完整的代码。也许我把你的代码放错了地方。 非常感谢。我测试了你的 gui，这没关系，但是在我的应用程序中不起作用；也许它还有另一个问题。 我希望我也能解决您的实际问题。我会试一试。对于百分比的东西，你可以有一个百分比数组，并根据百分比值和标题的全宽大小计算实际宽度大小。【参考方案2】：关键是这些行：
//use GridLayout if you want equally spaced columns
row.setLayout(new BoxLayout(row, BoxLayout.X_AXIS));
要将约束应用于列，您可以使用GridBagLayout 而不是BoxLayout。
这是使用GridBagLayout的一个非常基本的mcve：
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.io.IOException;
import javax.swing.BorderFactory;
import javax.swing.BoxLayout;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextArea;
public class PanelTable2 extends JPanel
public PanelTable2()
setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
setPreferredSize(new Dimension(400, 150));
add(getRow());
Component getRow()
int[] percent = 10,40,50;
JPanel row = new JPanel();
GridBagLayout layout = new GridBagLayout();
row.setLayout(layout);
GridBagConstraints gbc = new GridBagConstraints();
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.anchor = GridBagConstraints.CENTER;
for (int i= 0; i < percent.length; i++)
gbc.gridy = 0 ; gbc.gridx = i;
gbc.weightx = percent[i];
Component component = getCell();
row.add(component, gbc);
return row;
Component getCell()
JTextArea ta = new JTextArea(4,11);
ta.setBorder(BorderFactory.createLineBorder(Color.BLACK));
ta.setFont(new Font("Bmitra", Font.BOLD, 15));
return ta;
public static void main(String[] args) throws IOException
JFrame window = new JFrame();
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
window.add(new PanelTable2());
window.pack();
window.setVisible(true);
请注意，mcve 不应代表您的应用程序。它应该是问题的简单表示。GridBagLayout 绝不是唯一的选择。您还可以探索其他替代方案，例如 SpringLayout。
【讨论】：
我在我的应用程序之间使用了您的代码，但不起作用。即使在测试您的代码并输入其单元格百分比时也会出现问题...... 它并不打算按原样在您的代码中使用。它旨在为您指明写作方向，并向您展示我认为您应该学习的内容。这个网站不是“代码编写服务”，而是一个您希望得到指导的地方。 我看到你说朋友；但你的答案很简单，我是初学者，所以我无法解决它们。请帮助我...... 这就是我尝试做的。运行发布的代码，使其适应您的需求，并在需要时询问有关它的具体问题。 我用.setText 到ta 测试了您的代码，但百分比不适用。这表明您的代码不满足此问题的关键功能。以上是关于使用 JPanel 列表制作表格（应用百分比大小列）的主要内容，如果未能解决你的问题，请参考以下文章