Mapscript/Java Tomcat

[Umberto Nicoletti]

Java cannot load the dlls that libmapscript.ddl depends on. Make sure
you have all the directory containing them in PATH (or copy them in
system32).

Did you build mapserver by yourself?

Regards,
Umberto

On 6/27/05, a j <sc0rp10nau at yahoo.com.au> wrote:
> Hi all,
> 
> I've been stuck with a problem for a couple of days
> now, and i desperately need any help that I can get.
> I've successfully got a map image with some dynamic
> points using a simple desktop app. Basically this
> small app statically loads the mapscript library,
> reads in a map file, adds a couple of points and save
> the result image to the disk.
> 
> Now when I do this exact same thing as a Servlet, I
> just get the java.lang.UnsatisfiedLinkError:
> c:\mapserver\mapscript.dll: Can't find dependent
> libraries.
> 
> I'm using Tomcat 5.5.9, Java 1.5, and MapServer 4.4 on
> a windows machine. I've set the CLASSPATH and PATH
> variables already. I've set the java.library.path to
> c:\mapserver but it fails to load the library (or its
> dependencies) properly. Here is the top part of the
> error:
> 
> ==== start error ====
> java.lang.UnsatisfiedLinkError:
> C:\mapserver\mapscript.dll: Can't find dependent
> libraries
>         at java.lang.ClassLoader$NativeLibrary.load(Native
> Method)
>         at java.lang.ClassLoader.loadLibrary0(Unknown Source)
>         at java.lang.ClassLoader.loadLibrary(Unknown Source)
>         at java.lang.Runtime.loadLibrary0(Unknown Source)
>         at java.lang.System.loadLibrary(Unknown Source)
> ...
> ...
> 
> ==== end error ====
> 
> This is what i do in the servlet:
> 
> ==== start code =====
> import javax.servlet.*;
> import javax.servlet.http.*;
> import edu.umn.gis.mapscript.*;
> 
> public class MapServer extends HttpServlet {
>     static
>         {
>                 try
>                 {
>                         System.loadLibrary("mapscript");
>                         System.out.println("Loaded the Mapscript library");
>                 }
>                 catch (UnsatisfiedLinkError e)
>                 {
>                         e.printStackTrace(System.out);
>                 }
>         }
>     protected void processRequest(HttpServletRequest
> request, HttpServletResponse response)
>     throws ServletException, IOException {
> 
>   // do something with the mapObj, etc..
>   // mapObj map = new mapObj("path/to/map/file.map");
>    }
> }
> ==== end code ====
> 
> As mentioned before, any help with this would be
> great, and it is quite urgent, as my deadlines are
> approaching.
> 
> tia.
> Ajay
> 
> 
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>