asp防止垃圾留言代码

答案：<!--#include file="common/conn.asp"--> 
<!--#include file="common/sub.asp"--> 
<%  
server_v1=Cstr(Request.ServerVariables("HTTP_REFERER")) 
Response.Write(server_v1)  
server_v2=Cstr(Request.ServerVariables("SERVER_NAME"))  
if mid(server_v1,8,len(server_v2))<>server_v2 then  
 response.write "禁止外部提交数据"  
 response.end  
end if  
if len(request.form("frmContent"))>1000 then  
 response.write "输入内容超过规定字符数目"  
 response.end  
end if  
if request.cookies("visitime")<>"" then  
 if DateDiff("s",request.cookies("visitime"),now())<60 then  
  response.write "请勿在1分钟内重复提交评论"  
  response.end  
 end if  
end if  

count="易做图,易做图,安利,http,www"  
connts = split(connt,",")  
For each glword in connts  
 if instr(request.form("frmcontent"),glword)<>0 then  
 response.write "该关键字已被过滤"  
 response.end  
 end if  
next  
Dim UserNam,Comments 
Dim fieldlist,Valuelist 
UserName = Request.Form("UserName") 
Comments = Request.Form("Comments") 
newsid = Request.Form("newsid") 
If UserName = "" Or Comments = "" Then  
 Response.Write("姓名或者内容没有填写") 
 Response.End() 
End If 
fieldlist = array("UserName","Comments","newsid") 
valuelist = array(UserName,Comments,newsid) 
Set objRs = Server.CreateObject("ADODB.recordset") 
objRs.open "Feedback",objConn,1,2 
objRs.addnew fieldlist,valuelist 
closeI() 
response.cookies("visitime")=now()  
response.Redirect(server_v1) 
%>  

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