JTable的单元格渲染器

本文介绍了JTable的单元格渲染器 - 彩色行的处理方法，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

我一直在四处寻找解决方案，我不能在不问自己问题的情况下从不同地方做头或尾，如何让我的桌子做彩色行。

I've been looking around for a solution to this and I can't make head nor tail from various places of how to get my table to do coloured rows without asking my own question.

从我看过的每个地方我都会收集细胞渲染器，但问题是我不知道如何将它应用到我自己的情况。

From every place I've looked I gather I need to use a cell renderer but the problem is I don't know how to apply it to my own situation.

所以我有一个简单的JTable 3列，我只想让每一行以绿色，黄色或红色突出显示，具体取决于单独变量的值（表中未显示）。

So I have a simple JTable with 3 columns and I simply want each row to be highlighted in either green, yellow or red depending on the value of a separate variable (not displayed in the table).

看起来它应该非常简单，但我不知道怎么做。如果它有助于我的表定义如下：

It seems like it should be really simple but I can't get how to do it. If it helps my table is defined like:

studentTableModel = new DefaultTableModel(new Object[]{"Name", "StudentNo", "Part"}, 0); jt_studentTable = new JTable(studentTableModel); jt_studentTable.getColumnModel().getColumn(2).setPreferredWidth(10); studentTableModel.addRow(new Object[]{"(empty)", "(empty)", "(empty)"}); JScrollPane jsp_tableScroller = new JScrollPane(jt_studentTable); jsp_tableScroller.setPreferredSize(new Dimension(200,190)); middleCentrePanel.add(jsp_tableScroller);

表格中的行会根据组合框的选择而变化。

The rows in the table change depending of the selection of a combo box.

提前致谢。

推荐答案

import java.awt.Color; import java.awt.Component; import java.awt.EventQueue; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.table.DefaultTableCellRenderer; public class RowRendering { private static Object[] columnName = {"Yes", "No"}; private static Object[][] data = { {"Y", "N"}, {"N", "Y"}, {"Y", "N"} }; public static void main(String[] args) { Runnable r = new Runnable() { @Override public void run() { JFrame frame = new JFrame(); JTable table = new JTable(data, columnName); table.getColumnModel().getColumn(0).setCellRenderer(new CustomRenderer()); table.getColumnModel().getColumn(1).setCellRenderer(new CustomRenderer()); frame.add(new JScrollPane(table)); frame.setTitle("Rendering in JTable"); frame.pack(); frame.setVisible(true); } }; EventQueue.invokeLater(r); } } class CustomRenderer extends DefaultTableCellRenderer { private static final long serialVersionUID = 6703872492730589499L; public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { Component cellComponent = super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column); if(row == 0){ cellComponent.setBackground(Color.YELLOW); } else if ( row == 1){ cellComponent.setBackground(Color.GRAY); } else { cellComponent.setBackground(Color.CYAN); } return cellComponent; } }