swing表格分页控件封装

package com.ydtf.common.action;

import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;

import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JPanel;

public abstract class SubPageBar extends JPanel implements ItemListener ActionListener {
	private static final long serialVersionUID = -6040510785204761873L;
	private int allCount fromRec endRec pageSize pageIndex pageCount;
	private JLabel allCountLab curCountLab pageIndexLab;
	private JComboBox eachCom;
	// 按钮首页
	private JButton firstPageButton;
	// 前一页
	private JButton latePageButton;
	// 下一页
	private JButton nextPageButton;
	// 末页
	private JButton lastPageButton;

	public SubPageBar（int recNums） {
		this.allCount = recNums;
		initUI（）;
		updateData（）;
	}

	private void initUI（） {
		// comboBox
		eachCom = new JComboBox（new String[] { “20“ “50“ “100“ }）;
		// label
		curCountLab = new JLabel（）;
		allCountLab = new JLabel（）;
		pageIndexLab = new JLabel（）;
		// button
		firstPageButton = new JButton（“首页“）;
		nextPageButton = new JButton（“下一页“）;
		latePageButton = new JButton（“前一页“）;
		lastPageButton = new JButton（“末页“）;
		// listener
		eachCom.addItemListener（this）;
		firstPageButton.addActionListener（this）;
		nextPageButton.addActionListener（this）;

		latePageButton.addActionListener（this）;
		lastPageButton.addActionListener（this）;

		this.setLayout（new FlowLayout（FlowLayout.LEFT））;
		this.add（curCountLab）;
		this.add（allCountLab）;
		this.add（new JLabel（“每页“））;
		this.add（eachCom）;
		this.add（new JLabel（“条“））;
		this.add（firstPageButton）;
		this.add（nextPa