Swing表格组件例题

﹏ヽ暗。殇╰゛Y 2023-07-20 12:30 53阅读 0赞

## 创建可以滚动的表格 ##

import java.awt.BorderLayout;
    
    import javax.swing.JFrame;
    import javax.swing.JScrollPane;
    import javax.swing.JTable;
    
    public class Example1 extends JFrame { 
    	public static void main(String args[]) { 
    		Example1 frame = new Example1();
    		frame.setVisible(true);
    	}
    	public Example1() { 
    		super();
    		setTitle("创建可以滚动的表格");
    		setBounds(100,100,240,150);
    		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    		String[] columnNames = { "A","B"};//定义表格列数组民
    		String[][] tableValues = { { "A1","B1"},{ "A2","B2"},{ "A3","B3"},{ "A4","B5"}};
    		JTable table = new JTable(tableValues,columnNames);
    		JScrollPane scrollPane = new JScrollPane(table);
    		getContentPane().add(scrollPane,BorderLayout.CENTER);
    	}
    }

## 创建不可滚动的表格 ##

利用构造方法JT able（Vector rowData，Vector columnNames）创建一个表格，并直接添加到容器中

import java.awt.BorderLayout;
    import java.util.Vector;
    
    import javax.swing.JFrame;
    import javax.swing.JTable;
    import javax.swing.table.JTableHeader;
    
    public class Example2 extends JFrame { 
    	public static void main(String args[]) { 
    		
    		Example2 frame =new Example2();
    		frame.setVisible(true);
    	}
    	public Example2() { 
    	super();
    	//setTitle("创建不可滚动的表格")；
    	//setTitle()；
    	setBounds(100,100,240,150);
    	setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    	Vector<String>columnNameV = new Vector<>();
    	columnNameV.add("A");
    	columnNameV.add("B");
    	Vector<Vector<String>>tableValueV =new Vector<>();//定义表格数据向量
    	for(int row =1 ;row<6;row++)
    	{ 
    		Vector<String>rowV =new Vector<>();
    		rowV.add("A"+row);
    		rowV.add("B"+row);
    		tableValueV.add(rowV);
    	}
    	//创建指定表格列名和指定表格数据的表格
    	JTable table = new JTable(tableValueV,columnNameV);
    	//将表格添加到边界布局的中间
    	getContentPane().add(table,BorderLayout.CENTER);
    	JTableHeader tableHeader = table.getTableHeader();
    	getContentPane().add(tableHeader,BorderLayout.NORTH);
    	}	
    }

运行结果  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzQ2MTkzOTgy_size_16_color_FFFFFF_t_70]

## 定义表格 ##

设置表格的背景、选择表格时被选中的框的颜色等等

import java.awt.BorderLayout;
    import java.awt.Color;
    import java.util.Vector;
    
    import javax.swing.JFrame;
    import javax.swing.JScrollPane;
    import javax.swing.JTable;
    import javax.swing.ListSelectionModel;
    import javax.swing.table.DefaultTableCellRenderer;
    import javax.swing.table.JTableHeader;
    
    public class Example3 extends JFrame { 
    	public static void main(String args[]) { 
    		Example3 frame =new Example3();
    		frame.setVisible(true);
    	}
    	public Example3() { 
    		super();
    		setTitle("定义表格");
    		setBounds(100,100,500,375);
    		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    		final JScrollPane scrollPane = new JScrollPane();
    		getContentPane().add(scrollPane,BorderLayout.CENTER);
    		String[] columnNames = { "A","B","C","D","E","F","G"};
    		Vector<String> columnNameV = new Vector<>();
    		for(int column = 0 ;column<columnNames.length;column++) { 
    			columnNameV.add(columnNames[column]+row);
    		}
    		Vector<Vector<String>> tableValueV =new Vector<>();
    		for(int row=1;row<21;row++)
    		{ 
    			Vector<String> rowV =new Vector<>();
    			for(int column =0;column<columnNames.length;column++)
    			{ 
    				rowV.add(columnNames[column]+row);
    			}
    			tableValueV.add(rowV);
    		}
    		JTable table = new MTable(tableValueV,columnNameV);
    		//关闭表格列的自动调整功能
    		table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
    		//选择模式为单选
    		table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
    		//被选择行的背景为黄色
    		table.setSelectionBackground(Color.YELLOW);
    		//被选择行的文字颜色设置为red
    		table.setSelectionForeground(Color.RED);
    		table.setRowHeight(30);//表格的行高为30像素
    		scrollPane.setViewportView(table);
    	}
    	private class MTable extends JTable{ 
    		public MTable(Vector<Vector<String>>rowData,Vector<String>columnNames) { 
    			super(rowData,columnNames);
    		}
    		public JTableHeader getTableHeader() { //定义表格头
    			//获得表格头对象
    			JTableHeader tableHeader = super.getTableHeader();
    			tableHeader.setReorderingAllowed(false);//表格列不可以重排
    			DefaultTableCellRenderer hr = (DefaultTableCellRenderer);
    			tableHeader.getDefaultRenderer();
    			hr.setHorizontalAlignment(DefauTableCellRenderer.CENTER);
    			return tableHeader;
    		}
    	}
    	public TableCellRenderer getDefaultRenderer(class<?>)
    }

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzQ2MTkzOTgy_size_16_color_FFFFFF_t_70]: /images/20230528/86ee794169db4e9194dd2999311c2e45.png