用Access制作一个功能完善的论坛（源程序）

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To create this forum on your server, you will need to create a Microsoft Access Database named
discuss.mdb. You will also need to create a single table in this database named messages that has the
following fields:

m_id -- An autonumber field
m_email -- A text field
m_subject -- A text field
m_message -- A Memo field
m_entrydate -- A Date/Time field with default value of NOW()
m_numReplies -- A Number field with default value of 0
m_reply -- A Number field with default value of -1




Listing 1.0 - discuss.asp

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Listing 2.0 - discussframes.asp
-------------------------------------------------

<%
page = TRIM( request( "pg" ) )
addm = TRIM( request( "addm" ) )
email = TRIM( request( "email" ) )
subject = TRIM( request( "subject" ) )
message = TRIM( request( "message" ) )

IF addm <> "" THEN
IF email = "" THEN
showError "You did not enter your email address", "post.asp"
END IF
IF subject = "" THEN
showError "You did not enter a subject for your message", "post.asp"
END IF
IF message = "" THEN
showError "You did not enter a message", "post.asp"
END IF
IF INSTR( email, "." ) = 0 OR INSTR( email, "@" ) = 0 THEN
showError "You did not enter a valid email address", "post.asp"
END IF


readyDBCon
Set RS = Server.CreateObject( "ADODB.Recordset" )
RS.ActiveConnection = Con
RS.CursorType = adOpenStatic
RS.LockType = adLockOptimistic
RS.Open "SELECT * FROM messages WHERE 1<>1", Con
RS.AddNew
RS( "m_email" ) = email
RS( "m_subject" ) = subject
RS( "m_message" ) = message
RS( "m_reply" ) = addm
RS.Update
RS.Close
IF addm <> "-1" THEN
Con.Execute "UPDATE messages SET m_numreplies = m_numreplies+1 WHERE m_id=" & addm
END IF
END IF
%>




src="message.asp?id=<%=addm%>&pg=<%=page%>">



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Listing 3.0 - discussfuncs.asp
-------------------------------------------------------
<%
dbPath = "d:discuss.mdb"
messagesApage = 5

''''''''''
' Define Constants  
''''''''''
adOpenStatic = 3
adLockOptimistic = 3


''''''''''''''
' Declare Global Variables
''''''''''''''
DIM Con


SUB readyDBCon
IF Con = "" THEN
Set Con = Server.CreateObject( "adodb.Connection" )
Con.Open "PROVIDER=MICROSOFT.JET.OLEDB.4.0;DATA SOURCE=" & dbPath
END IF
END SUB



FUNCTION showUser( theEmail )
whereA = INSTR( theEmail, "@" )
showUser = Server.HTMLEncode( LEFT( theEmail, whereA - 1 ) )
END FUNCTION



FUNCTION formatOutput( theText )
theText = Server.HTMLEncode( theText )
theText = REPLACE( theText, vbNewline & vbNewline, "

" )
theText = REPLACE( theText, vbNewline, "
" )
formatOutput = theText
END FUNCTION



sub showError( errorMessage, backpage )
%>