url/GuanliyuanManageUIListPanel.java

package view;

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.Image;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.List;
import java.util.Vector;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.border.EmptyBorder;
import javax.swing.table.DefaultTableModel;

import dao.GuanliyuanDao;
import dao.impl.GuanliyuanImpl;
import entity.Guanliyuan;

public class GuanliyuanManageUIListPanel extends JPanel implements Tableinter{
	GuanliyuanDao dao = new GuanliyuanImpl();
	private JPanel contentPane;




	private static String[] columnCount = { "id","用户名","密码","角色" };
	public JTable table;
	private static DefaultTableModel tableModel;
	private String mainid;

	public GuanliyuanManageUIListPanel(String mainid) {
		this.mainid=mainid;
		setLayout(new BorderLayout(0, 0));
		contentPane = new JPanel();		
		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
		contentPane.setLayout(new BorderLayout(0, 0));
		add(contentPane);
		JScrollPane scrollPane = new JScrollPane();
		contentPane.add(scrollPane, BorderLayout.CENTER);
		table = new JTable();
		scrollPane.setViewportView(table);
		JPanel toppanel = new JPanel();
		contentPane.add(toppanel, BorderLayout.NORTH);
		toppanel.setLayout(new GridLayout(2, 1, 0, 0));
		
		JPanel btnpanel = new JPanel();
		btnpanel.setLayout(new FlowLayout(FlowLayout.RIGHT, 5, 5));
		toppanel.add(btnpanel);
		
		
		JButton button = new JButton("添加");
		button.addMouseListener(new MouseAdapter() {
			public void mouseClicked(MouseEvent e) {
				new GuanliyuanAddUI(me()).setVisible(true);
			}
		});
		btnpanel.add(button);

		JButton button_1 = new JButton("删除");
		/**
			删除操作
		*/
		button_1.addMouseListener(new MouseAdapter() {
			public void mouseClicked(MouseEvent e) {
				int row = table.getSelectedRow();
				if (row == -1) {
					JOptionPane.showMessageDialog(null, "请选择一行进行删除");
					return;
				}
				String keyvalue = (String) table.getValueAt(row, 0);
				/**
					根据主键进行查询,如果查询到则删除
				*/
				Guanliyuan gl=new Guanliyuan();
				gl.setId(Integer.valueOf(keyvalue));
				dao.remove(gl);
				JOptionPane.showMessageDialog(null, "删除成功");
				refresh(dao.findAll());
			}
		});
		btnpanel.add(button_1);
		
		JButton button_2 = new JButton("修改");
		/**
			修改操作
		*/
		button_2.addMouseListener(new MouseAdapter() {
			public void mouseClicked(MouseEvent e) {
				int row = table.getSelectedRow();
				if (row == -1) {
					JOptionPane.showMessageDialog(null, "请选择一行进行修改");
					return;
				}
				//跳转到修改页面
				new GuanliyuanUpdateUI(me()).setVisible(true);
			}
			
		});
		btnpanel.add(button_2);
		refresh(dao.findAll());
	}
	public GuanliyuanManageUIListPanel me(){
		return this;
	}
	//刷新表格列表
	public void refresh(List list){


		tableModel = new DefaultTableModel(transferList(list), columnCount){
			public Class getColumnClass(int column) {
				Vector<?> v = (Vector<?>) dataVector.elementAt(0);
				if(v.elementAt(column)!=null){
					return v.elementAt(column).getClass();
				}else{
					return String.class;
				}
			}
			public boolean isCellEditable(int row, int col) {
				  Class<?> columnClass = getColumnClass(col);
				  return columnClass != ImageIcon.class;
			}
		};
		table.setModel(tableModel);

	
		updateRowHeights();
	}
	//自动调整列高
	private void updateRowHeights()
	{
	    for (int row = 0; row < table.getRowCount(); row++)
	    {
	        int rowHeight = table.getRowHeight();

	        for (int column = 0; column < table.getColumnCount(); column++)
	        {
	            Component comp = table.prepareRenderer(table.getCellRenderer(row, column), row, column);
	            rowHeight = Math.max(rowHeight, comp.getPreferredSize().height);
	        }
	        table.setRowHeight(row, rowHeight);
	    }
	}
	//将实体列表转换为表格实体
	public static Object[][] transferList(List<Guanliyuan> list) {
		Object[][] olist = new Object[list.size()][];
		for (int i = 0; i < list.size(); i++) {
			Object str[] = {list.get(i).getId().toString(), list.get(i).getYonghumingyc(),list.get(i).getMimayc(),list.get(i).getJiaoseyc() };
			//如果包含图片格式则以图片形式显示
		for (int j = 0; j < str.length; j++) {
				if(str[j]!=null&&(str[j].toString().contains("png")||str[j].toString().contains("jpg")||str[j].toString().contains("gif"))){
					str[j]=new ImageIcon(new ImageIcon(str[j].toString()).getImage().getScaledInstance(100, 100, Image.SCALE_DEFAULT));
				}
			}
			olist[i] = str;
		}
		
		return olist;
	}
	public JTable getTable() {
		return table;
	}
	public String getMainid(){
		return mainid;
	}
}