ASP备份SQL Server数据库改进版

<form method="post" name="myform" action="?action=backupdatabase">
选择操作：<input type="radio" name="act" id="act_backup"value="backup"><label for=act_backup>备份</label>
<input type="radio" name="act" id="act_restore" value="restore"><label for=act_restore>恢复</label>
<br>数据库名：<input type="text" name="databasename" value="<%=request("databasename")%>">
<br>文件路径：<input type="text" name="bak_file" value="c:\$1.bak">(备份或恢复的文件路径)<br>
<input type="submit" value="确定" id=submit1 name=submit1>
</form>
<%
'sql server 数据库的备份与恢复!
if request("action")="backupdatabase" then
dim sqlserver,sqlname,sqlpassword,sqllogintimeout,databasename,bak_file,act
sqlserver = "localhost"
sqlname = "sa"
sqlpassword ="password"
sqllogintimeout = 15
databasename = trim(request("databasename"))
bak_file = trim(request("bak_file"))
bak_file = replace(bak_file,"$1",databasename)
act = lcase(request("act"))
if databasename = "" then
response.write "input database name"
else
if act = "backup" then
set srv=server.createobject("sqldmo.sqlserver")
srv.logintimeout = sqllogintimeout
srv.connect sqlserver,sqlname, sqlpassword
set bak = server.createobject("sqldmo.backup")
bak.database=databasename
bak.devices=files
bak.action = 0
bak.initialize = 1
'bak.replace = true
bak.files=bak_file
bak.sqlbackup srv
if err.number>0 then
response.write err.number&"<font color=red><br>"
response.write err.description&"</font>"
end if
response.write "<font color=green>备份成功!</font>"
elseif act="restore" then
'恢复时要在没有使用数据库时进行！
set srv=server.createobject("sqldmo.sqlserver")
srv.logintimeout = sqllogintimeout
srv.connect sqlserver,sqlname, sqlpassword
set rest=server.createobject("sqldmo.restore")
rest.action=0 ' full db restore
rest.database=databasename
rest.devices=files
rest.files=bak_file
rest.replacedatabase=true 'force restore over existing database
if err.number>0 then
response.write err.number&"<font color=red><br>"
response.write err.description&"</font>"
end if
rest.sqlrestore srv
response.write "<font color=green>恢复成功!</font>"
else
response.write "<font color=red>没有选择操作</font>"
end if
end if
end if
%>