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From Annamalai Ramasamy <armalai...@yahoo.co.uk>
Subject RE: Accessing Dll's
Date Thu, 22 Apr 2004 15:52:13 GMT
Hi.,
   Yes,I did see my dll path using this line.
 
Thanks.,
MALAI
Ryan Lissack <rlissack@buildonline.com> wrote:
Hi,

Execute the following :

System.out.println(System.getProperty("java.library.path"));

See what directories are there. If the one(s) with your DLL(s) are not
listed you can add them as a startup param to the VM using the -D option
(java -Djava.library.path=.....)

HTH

Regards,
Ryan.

-----Original Message-----
From: Annamalai Ramasamy [mailto:armalai_uk@yahoo.co.uk]
Sent: 22 April 2004 16:33
To: Tomcat Users List
Subject: RE: Accessing Dll's


Hi.,
Check my below java code.
I do not have native source codes.

I'm sure there is no version conflicts.
But i have copied the dll in more than one places..like winnt, system32 and
jre/bin like that.

any idea?

public class AddressValidate {

private Address inad;
private Address outad;
private String usercompany;

public StringBuffer csReturnErrorMsg;
public StringBuffer csReturnStreet;
public StringBuffer csReturnCityName;
public StringBuffer csReturnCounty;
public StringBuffer csReturnState;
public StringBuffer csReturnZip;
//To load DLL AvsWebInrterface 
static{
try{
System.loadLibrary("AvsWebInterface");
System.out.println("DLL Loaded"); 
}catch(Exception e){
System.err.println("Could not load DLL \"AvsWebInterface \" :
"+e.toString());
System.out.println("Could not load DLL \"AvsWebInterface \" :
"+e.toString());

}catch(Throwable e){
System.err.println("Could not load DLL \"AvsWebInterface:\"
"+e.toString());
System.out.println("Could not load DLL \"AvsWebInterface:\"
"+e.toString());
}
} 
//end of static
//--------------------------------------------------------------------------
-

//Native method implemented in cpp 
public native String JAVAAVSValidate (String company, 
String street1, 
String city, 
String state, 
String zip, 
StringBuffer csReturnStreet, 
StringBuffer csReturnCityName, 
StringBuffer csReturnCounty, 
StringBuffer csReturnState, 
StringBuffer csReturnZip, 
StringBuffer csReturnErrorMsg) ;
//--------------------------------------------------------------------------
-
public AddressValidate(){
inad=null;
outad=null;
usercompany=new String("");

}
//--------------------------------------------------------------------------
-
public String validate (Address inad,Address outad){
csReturnStreet=new StringBuffer(""); 
csReturnCityName=new StringBuffer(""); 
csReturnCounty=new StringBuffer(""); 
csReturnState=new StringBuffer(""); 
csReturnZip=new StringBuffer(""); 
csReturnErrorMsg=new StringBuffer(""); 
this.inad=inad;
this.outad=outad;


try{
// System.out.println("Street1 :"+inad.Street1);
// System.out.println("city :"+inad.City);
// System.out.println("state :"+inad.State);
// System.out.println("postalcode"+inad.PostalCode);

JAVAAVSValidate (usercompany,
inad.Street1,
inad.City,
inad.State,
inad.PostalCode, 
csReturnStreet, 
csReturnCityName, 
csReturnCounty, 
csReturnState, 
csReturnZip, 
csReturnErrorMsg);
outad.Street1 = csReturnStreet.toString(); 
outad.City = csReturnCityName.toString(); 
outad.County = csReturnCounty.toString(); 
outad.State = csReturnState.toString(); 
outad.PostalCode = csReturnZip.toString(); 
// System.out.println("Street1 :"+outad.Street1);
// System.out.println("city :"+outad.City);
// System.out.println("state :"+outad.State);
// System.out.println("postalcode"+outad.PostalCode);

}catch(Exception e){
System.out.println("Error in Validating Address " + e.toString());
}

return (csReturnErrorMsg.toString());
}


}

Peter Guyatt 
wrote:
Hi There,

Can I see you native code and your class that declares you native methods.

Thanks

Pete

-----Original Message-----
From: Mark Schmeets [mailto:mark@chipware.com]
Sent: 22 April 2004 16:13
To: Tomcat Users List
Subject: Re: Accessing Dll's


Hi,
Is it possible that this dll is being loaded somewhere else in your
instance?
My experience with this error came from trying to use the Oracle native
JDBC drivers. It usually came down to one of three issues, first that
the dll couldn't be "found", second that another web-app had already
loaded it, third it was a dll versioning problem.
Hope it helps.

Mark

Annamalai Ramasamy wrote:

>Hi.,
>Again same error.
>I did put the dll to /jre/bin and winnt/system32.
>Any other ideas please...
>Thanks.,
>MALAI
>
>Hans Wichman wrote:
>sorry, i meant lib\bin\ instead of lib\ext\
>
>grtz
>Sorv
>
>At 03:43 PM 4/22/2004 +0100, Annamalai Ramasamy wrote:
>
>
>>Hi.,
>>Again Same Error..
>>Actually after the System.loadlibrary..i can able to see my
>>system.out.println values.
>>Then while trying to call my method i'm getting UnsatishfiedLinkError.
>>Thanks.,
>>MALAI
>>
>>Hans Wichman wrote:
>>try putting them in the lib/ext folder of your j2sdk1.4.2_03 folder.
>>
>>grtz
>>Sorv
>>
>>At 03:24 PM 4/22/2004 +0100, Annamalai Ramasamy wrote:
>>
>>
>>>Hi.,
>>>I'm using Tomcat4.0.29 with J2SDK 1.4.2_03.
>>>I have my native libraries(dll's) in winnt folder.
>>>I'm loading the dll thru System.loadlibrary and accessing the methods.
>>>I'm getting UnsatishfiedLinkError.
>>>My class files are in my web-inf classes directory.
>>>In forums i searcehed, and i tried out all possibility like
>>>setting path and changing my classes to common/classes and all.
>>>Please give me your suggestions...
>>>Thanks.,
>>>MALAI
>>>
>>>
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