?? online.jsp
字號:
<%@page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" %>
<jsp:useBean id="DB" scope="page" class="com.msg.db.DBConnect"/>
<%!
String DateToString(){
String str;
//int i,j;
java.util.Date date = new java.util.Date();
str=String.valueOf(date.getTime());
//i=str.length();
//j=i-9;
str=str.substring(0,9);
return str;
}
%>
<%! String sql,Time_Str,User_List,Guest_List,UserName;
long Online_Time;
int Guest_Num,User_Num;
%>
<%
Guest_List="";
User_List="";
Connection con=DB.getConn();
Statement stmt=con.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
ResultSet rs=null;
sql="select * from online where olid='"+session.getId()+"'";
rs=stmt.executeQuery(sql);
rs.last();
if (rs.getRow()>0)
{
if (session.getValue("UserName")==null)
sql="update online set olaftertime='"+DB.getTime()+"',olendtime='"+DateToString()+"' where olid='"+session.getId()+"'";
else
sql="update online set olusername='"+session.getValue("UserName")+"',olaftertime='"+DB.getTime()+"',olendtime='"+DateToString()+"' where olid='"+session.getId()+"'";
stmt.executeUpdate(sql);
}else
{
sql="insert into online(olid,olusername,olstarttime,olaftertime,olendtime,olip) ";
if (session.getValue("UserName")==null)
sql=sql+" values('"+session.getId()+"','客人','"+DB.getTime()+"','"+DB.getTime()+"','"+DateToString()+"','"+request.getRemoteAddr()+"')";
else
sql=sql+" values('"+session.getId()+"','"+session.getValue("UserName")+"','"+DB.getTime()+"','"+DB.getTime()+"','"+DateToString()+"','"+request.getRemoteAddr()+"')";
//out.println(sql);
stmt.executeUpdate(sql);
}
Time_Str=DateToString();
Online_Time=Integer.parseInt(Time_Str);;
Online_Time=Online_Time-60;
sql="delete from online where olendtime<'"+Online_Time+"'";
stmt.executeUpdate(sql);
//out.println(Online_Time);
sql="select olusername from online where olusername<>'客人' order by olendtime desc";
rs=stmt.executeQuery(sql);
rs.last();
User_Num=rs.getRow();
if (User_Num>0)
{
for (int i=1;i<=User_Num;i++)
{
UserName=rs.getString("olusername");
User_List=User_List+"<a href=member.jsp?member="+UserName+">"+UserName+"</a>  ";
}
}
sql="select olusername from online where olusername='客人' order by olendtime desc";
rs=stmt.executeQuery(sql);
rs.last();
Guest_Num=rs.getRow();
if (Guest_Num>0)
{
for (int i=1;i<=Guest_Num;i++)
{
Guest_List=Guest_List+"客人  ";
}
}
%>
<b><font color="#FFFFFF">在線人員- 目前有 <%=Guest_Num%> 位瀏覽者</font></b>
<%
rs.close();
stmt.close();
con.close();
%>
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