How to get a file with <CFFTP>

i trying grab file , move coldfusion server using <cfftp> server in trying grab file sftp server. running coldfusion 8. when run code, dont error, blank white screen, yet file has not been moved. post code below, know doing wrong?

 

<!--- open conncetion remote sftpserver --->

        <cftry>
            <cfftp action="open"
                connection="ftpserver"
                server="server.com"
                username = "username"
                password = "password"
                fingerprint = "11:11:b5:f2:11:af:c2:e2:31:11:d3:b4:11:83:11:11"
                timeout="20"
                port="22"
                secure = "yes" />
            <cfcatch>
                <cfset throwfiletransferfailed("could not open connection. message: " & cfcatch.message & ". detail: " & cfcatch.detail)>
            </cfcatch>
        </cftry>

 

<!--- file --->

 

        <cftry>     
               <cfftp
                action="getfile"
                connection="ftpserver"
                server="server.com"
                username="username"
                password="password"
                remotefile="test_20100816.csv"
                localfile="c:\wens_dev\pdf\"
                failifexists="no">
            <cfcatch>
                <cfset throwfiletransferfailed("could not open connection. message: " & cfcatch.message & ". detail: " & cfcatch.detail)>
            </cfcatch>
        </cftry>

things try:

 

1. value of localfile attribute should full path including name of file, not directory.

 

2. should able omit username , password in getfile cfhttp tag since you're using existing connection.

 

3. cf service have sufficient rights write files c:\wens_dev\pdf\ directory?

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