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restaurant/com/bean/FriendLinkBean.java

115 lines
3.0 KiB

package com.bean;
/**
*
* @author Administrator
*
*/
import java.io.File;
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 FriendLinkBean {
private List list;
private ResultSet rs;
private String date=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(Calendar.getInstance().getTime());
//友情链接分页
private int EVERYPAGENUM = 2;
private int count = -1;
private int qq = 0;
private String sql="select count(*) from friendlink where ifhide!='2'";
private String sql2="select * from friendlink where ifhide!='2' order by ordervalue 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();
list2.add(rs.getInt(1));
list2.add(rs.getString(2));
list2.add(rs.getString(3));
list2.add(rs.getString(4));
list2.add(rs.getString(5));
list2.add(rs.getInt(6));
list2.add(rs.getInt(7));
list2.add(rs.getString(8));
list.add(list2);
} else {
break; //减少空循环的时间
}
}
return list;
} catch (SQLException ex) {
ex.printStackTrace();
return list;
} finally {
dbo.close();
}
}
public List getAllShowFriendLink(){
String sql = "select linkname,linkurl,linkpic,intero from friendlink where ifhide='1' order by ordervalue desc";
DBO dbo = new DBO();
list = new ArrayList();
dbo.open();
try{
rs = dbo.executeQuery(sql);
while(rs.next()){
List list2 = new ArrayList();
list2.add(rs.getString(1));
list2.add(rs.getString(2));
list2.add(rs.getString(3));
list2.add(rs.getString(4));
list.add(list2);
}
return list;
}catch(Exception e){
e.printStackTrace();
return list;
}finally{
dbo.close();
}
}
}