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在線聊天 如何實現?

用ASP和dreamerweaver可以啊

<!--#include file="../conn/conn.asp"-->

<%

dim info

dim changed

if Request.ServerVariables ("REQUEST_METHOD")="GET" then

UserID=Request.QueryString ("user")

myname=session("myname")'Request.QueryString ("roomname")

end if

if Request.ServerVariables ("REQUEST_METHOD")="POST" then

yinword=request.form("yinword")

myname=Request.Form ("userid")

UserID=myname

myroom=session("myroom")'Request.Form ("roomname")

mynickname=Request.Form ("mynickname")

newsql="update chatUserOnLine set TimeLastTalking='" & now & "' where UserID='" & UserID & "'"

conn.Execute (newsql)

Application.Lock

if left(Request.Form ("yinword"),1)="/" then

command=Request.Form ("yinword")

select case left(Request.Form ("yinword"),2)

case "/j" '加入新房間

newroom=trim(mid(Request.Form ("yinword"),4))

newsql="select RoomName,IfLocked,WhoCreate from chatRoomInfo where RoomName='" & newroom & "'"

set newrecord=conn.Execute (newsql)

'Response.Write newrecord("RoomName")

if newrecord.bof or newrecord.eof then

application(UserID)="沒有這個房間號!<br><br>" & application(UserID)

elseif newrecord("IfLocked")=true then

newsql="select UserID from chatUserOnLine where RoomName='" & newroom & "' and UserID='" & newrecord(2) & "'"

set myrecord=conn.Execute (newsql)

if not myrecord.BOF then

application(UserID)="這個房間已經上鎖,不能進入!<br><br>" & application(UserID)

else

Create_Leaved=true

newsql="update chatRoomInfo set IfLocked=0 where RoomName='" & newroom & "'"

end if

elseif Create_Leaved=false then

'changed=true

application(UserID)=application(newroom)

newsql1="select UserID from chatUserOnLine where RoomName='" & newroom & "'"

set targ=server.CreateObject ("ADODB.Recordset")

targ.Open newsql1,conn,1,3

do while not targ.eof

tempname=cstr(targ("UserID"))

'Response.Write targ("UserID")

if tempname<>UserID then

application(tempname)="<br>" & mynickname & "大搖大擺地進來了!(請刷新)<font color=blue size=1>(" & time() & ")</font><br><br>" & application(tempname)

end if

targ.movenext

loop

newsql3="update chatRoomInfo set HowManyUsers=HowManyUsers+1 where RoomName='" & newroom & "'"

conn.Execute (newsql3)

newsql4="update chatRoomInfo set HowManyUsers=HowManyUsers-1 where RoomName='" & myroom & "'"

conn.Execute (newsql4)

newsql2="update chatUserOnLine set RoomName='" & newroom & "' where UserID='" & UserID & "'"

conn.Execute (newsql2)

application(UserID)="妳已經進入了" & newroom & "房間<br><br>" & application(UserID)

session("myroom")=newroom

changed=true

targ.Close

set targ=nothing

end if

case "/r" '查看聊天室房間信息

newsql="select * from chatRoomInfo"

set newrecordseyinword=conn.Execute (newsql)

do while not newrecordseyinword.eof

info=info & newrecordseyinword("RoomName") & "--" & newrecordseyinword("HowManyUsers") & "--" & newrecordseyinword("Topic") & "--" & newrecordseyinword("IfLocked") & "--" & newrecordseyinword("WhoCreate") & "<br>"

newrecordseyinword.movenext

loop

'Response.Write info

application(UserID)=info & "<br>" & application(UserID)

case "/w" '查看聊天室成員信息

if len(trim(Request.Form ("yinword")))=2 then

newsql="select * from chatUserOnLine"

set newrecordset2=conn.Execute (newsql)

do while not newrecordset2.eof

info=info & newrecordset2("UserId") & "--" & newrecordset2("RoomName") & "--" & newrecordset2("IpAdd") & "--" & newrecordset2("TimeLogin") & "<br>"

newrecordset2.movenext

loop

application(UserID)="<font color=red>"& info & "<br>" & application(UserID)

else

if right(left(Request.Form ("yinword"),3),1)<>":" then

info="命令行輸入錯誤<br>"

application(UserID)=info & application(UserID)

else

temproom=mid(trim(Request.Form ("yinword")),4)

newsql="select RoomName from chatRoomInfo where RoomName='" & temproom & "'"

set newrecord3=conn.Execute (newsql)

if not newrecord3.bof then

newsql="select * from chatUserOnLine where RoomName='" & temproom & "'"

set newrecordset2=conn.Execute (newsql)

if newrecordset2.bof then

application(UserID)="<br>該房間暫時沒有人!<br><br>" & application(UserID)

else

do while not newrecordset2.eof

info=info & newrecordset2("UserId") & "--" & newrecordset2("RoomName") & "--" & newrecordset2("IpAdd") & "--" & newrecordset2("TimeLogin") & "<br>"

newrecordset2.movenext

loop

application(UserID)="<br>" & info & "<br>" & application(UserID)

end if

else

info="<br>沒有<font color=red><strong>" & temproom & "</strong></font>這個房間!<br>"

application(UserID)=info & application(UserID)

end if

end if

end if

case "/l" '鎖住本房間

'lockroom=mid(Request.Form ("yinword"),4)

newsql="select WhoCreate from chatRoomInfo where WhoCreate='" & UserID & "' and RoomName='" & session("myroom") & "'"

set newrecordset=conn.Execute (newsql)

if newrecordset.bof then

application(UserID)="不好意思,妳無權鎖住這個房間!<br><br>" & application(UserID)

else

newsql="update chatRoomInfo set IfLocked=1 where RoomName='" & session("myroom") & "'"

conn.Execute (newsql)

application(UserID)="妳已經鎖住了這個房間!<br><br>" & application(UserID)

end if

case "/u"'解開房間

newsql="select WhoCreate from chatRoomInfo where WhoCreate='" & UserID & "' and RoomName='" & session("myroom") & "'"

set newrecordset=conn.Execute (newsql)

if newrecordset.bof then

application(UserID)="不好意思,妳無權解開這個房間或者不在那個房間!<br><br>" & application(UserID)

else

newsql="update chatRoomInfo set IfLocked=0 where RoomName='" & session("myroom") & "'"

conn.Execute (newsql)

application(UserID)="妳已經解開了這個房間!<br><br>" & application(UserID)

end if

case "/c"

application(session("myname"))=""

case "/b" '退出聊天室

%>

<script language="javascript">

<!--

top.location.href ="chatbye.asp"

//-->

</script>

<%

session.Abandon

Response.End

case "/h" '顯示幫助系統

info="/h---顯示幫助提示<br>"

info=info & "/j:roomname---加入新的房間<br>"

info=info & "/r---查看當前房間信息<br>"

info=info & "/w:roomname---查看當前用戶情況<br>"

info=info & "/l--鎖住當前房間,只有創建者才能鎖住<br>"

info=info & "/b--退出聊天室<br>"

info=info & "/u--解開某個房間<br>"

info=info & "/t:modifytopic--修改話題,只有創建者才能修改<br>"

info=info & "/c--清除聊天內容<br>"

application(UserID)= "<br>" & info & "<br>" & application(UserID)

case "/t"'更改房間話題

if right(left(command,3),1)<>":" then

application(UserID)="<br>命令輸入錯誤!<br><br>" & application(UserID)

else

newsql="select WhoCreate from chatRoomInfo where WhoCreate='" & UserID & "' and RoomName='" & session("myroom") & "'"

set newrecordset=conn.Execute (newsql)

if newrecordset.bof then

application(UserID)="不好意思,妳無權修改這個房間的話題!<br><br>" & application(UserID)

else

newsql="update chatRoomInfo set Topic='" & mid(command,4) & "' where RoomName='" & session("myroom") & "'"

conn.Execute (newsql)

newsql="select UserID from chatUserOnLine where RoomName='" & session("myroom") & "'"

set t_newrecordset=conn.Execute (newsql)

do while not t_newrecordset.eof

application(t_newrecordset(0))="房間話題被修改為<font color=#ff0000>" & mid(command,4) & "</font>!<br><br>" & application(t_newrecordset(0))

t_newrecordset.movenext

loop

t_newrecordset.close

set t_newrecordset=nothing

'application(UserID)="妳已經修改這個房間的話題為<font color=vbpurplea>" & mid(command,4) & "</font>!<br><br>" & application(UserID)

end if

end if

case else

application(UserID)= "<br>沒有這個命令,請用/h查看幫助<br>" & application(UserID)

end select

else

if request.form("targ")<>"all" then

id_name=Request.Form ("targ")

'Response.Write id_name

temppos=instr(1,id_name,",",1)

yourid=mid(id_name,1,temppos-1)

yournickname=mid(id_name,temppos+1)

end if

set myrecord=server.CreateObject ("ADODB.Recordset")

mysql="select * from chatUserOnLine where RoomName='" & myroom & "'"

myrecord.Open mysql,conn,1,3

'application.lock

if request.form("targ")="all" or request.form("siliao")<> "ON" then

if request.form("targ")="all" then

tempstr="<font color='" & request.form("color1") & "'>" & mynickname & Request.Form ("facing") & "說: " & request.form("yinword") & "</font><font color=blue size=0.5>(" & time() & ")</font><br>"

else

tempstr="<font color='" & request.form("color1") & "'>" & mynickname & "悄悄對" & yournickname & Request.Form ("facing") & "說: " & request.form("yinword") & "</font><font color=blue size=0.5>(" & time() & ")</font><br>"

end if

do while not myrecord.EOF

application(myrecord("UserId"))=tempstr & application(myrecord("UserId"))

myrecord.MoveNext

loop

application(myroom)=tempstr & Application(myroom)

'if len(application(myroom))>1000 then

'

' length2=len(application(myroom))

' temppos=instrrev(application(myroom),"<br>",length2)-1

' application(myroom)=mid(application(myroom),1,temppos)

' end if

' application(UserID)= "<br>len(application(myroom))" & len(application(myroom)) & "<br>" & application(UserID)

' application(UserID)= "<br>length2" & length2 & "<br>" & application(UserID)

' application(UserID)= "<br>temppos" & temppos & "<br>" & application(UserID)

else

tempstr="<marquee border='0' behavior='alternate'><font color='" & request.form("color1") & "'>" & mynickname & "對" & yournickname & Request.Form ("facing") & "說:" & request.form("yinword") &"</font></marquee>" &"<font colovrr=blue size=0.5>(" & time() & ")</font><br>"

application(yourid)=tempstr & application(yourid)

application(myname)=tempstr & Application(myname)

end if

'if len(application(myname))>20000 then

' length1=len(application(myname))

' temppos=instrrev(application(myname),"<br>",length1-4)-1

' application(myname)=mid(application(myname),1,temppos)

'end if

application.unlock

end if

'Response.Write (application(UserID))

Response.Write application(UserID)

else

Response.Write application(UserID)

end if

conn.Close

set conn=nothing

if changed=true then

%>

<script language="javascript">

<!--

parent.frames[1].location.href="chatsend.asp"

//-->

</script>

<%

end if

%>

<html>

<head>

<meta http-equiv="refresh" content="10;url=chatcontent.asp?user=<% =UserID %>">

<title>聊天內容</title>

<base target="ltop">

</head>

<body bgcolor="rgb(254,252,237)">

</body>

</html>

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