src/com/bean/EmpBean.java

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package com.bean;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.List;

import com.util.Constant;
import com.util.DBO;

public class EmpBean {

	private List list;
	private ResultSet rs;
	private String date=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(Calendar.getInstance().getTime());
	private int EVERYPAGENUM = 2;
	private int count = -1;
	private int qq = 0;
	private String sql="select count(*) from emp  ";
	private String sql2="select * from emp order by id desc ";
	  public void setEVERYPAGENUM(int EVERYPAGENUM){
    	this.EVERYPAGENUM=EVERYPAGENUM;
    }
    public int getMessageCount() { //得到信息总数
       DBO dbo=new DBO();
       dbo.open();
        try { 
            rs = dbo.executeQuery(sql);
            rs.next();
            count = rs.getInt(1);
            return count;
        } catch (SQLException ex) {
            ex.printStackTrace();
            return -1;
        } finally {
            dbo.close();
        }
    }
    public int getPageCount() { //得到共多少页（根据每页要显示几条信息）
        if (count % EVERYPAGENUM == 0) {
            return count / EVERYPAGENUM;
        } else {
            return count / EVERYPAGENUM + 1;
        }
    }
    public List getMessage(int page) { //得到每页要显示的信息
        DBO dbo=new DBO();
        dbo.open();
        List list = new ArrayList();
        try {
            rs = dbo.executeQuery(sql2);
            for (int i = 0; i < (page - 1) * EVERYPAGENUM; i++) {
                rs.next();
            }
            for (int t = 0; t < EVERYPAGENUM; t++) {
                if (rs.next()) {
                    qq++;
                    List list2=new ArrayList();