jBox Java applet

Thu Nov 18 14:36:16 EST 2004

Looks like there are problems with your codebase and archive
parameters. You have:
    codebase="java\jBox"
    archive="jBoxPNG.jar,png.jar"

The way you have codebase, the 'java' directory will not be found. I
assume that 'mapserver' is an IIS virtual directory, so try:
    'codebase=/mapserver/java/jbox'
Forward slashes, not back slashes, as this is a URI, not a DOS path.

I'm a little unclear on the specification of two jar files in the
archive parameter. Is that legal? Where'd you come up with that? And
you have the .jar files in /mapserver/java/jbox/ not a subdirectory,
right?

You might want to start with GIFs and the standard jBox, rather than
jBoxPNG which requries the sixlegs library. If you're using the Sun
Java VM, you don't need six-legs anyway.

I am cc'ing the mapserver-users list as others may spot something that I missed.

Rich
--
Richard Greenwood
richard.greenwood at gmail.com
www.greenwoodmap.com

On Thu, 18 Nov 2004 09:49:02 -0500, Andhare, Manjiri
<mandhare at state.pa.us> wrote:
> Yes I have JVM and after running the demo, if I check the java console,
> I get following:
> ----------------------------------------------------
> load: class jBoxPNG.class not found.
>
> java.lang.ClassNotFoundException: jBoxPNG.class
>
>         at sun.applet.AppletClassLoader.findClass(Unknown Source)
>
>         at java.lang.ClassLoader.loadClass(Unknown Source)
>
>         at sun.applet.AppletClassLoader.loadClass(Unknown Source)
>
>         at java.lang.ClassLoader.loadClass(Unknown Source)
>
>         at sun.applet.AppletClassLoader.loadCode(Unknown Source)
>
>         at sun.applet.AppletPanel.createApplet(Unknown Source)
>
>         at sun.plugin.AppletViewer.createApplet(Unknown Source)
>
>         at sun.applet.AppletPanel.runLoader(Unknown Source)
>
>         at sun.applet.AppletPanel.run(Unknown Source)
>
>         at java.lang.Thread.run(Unknown Source)
>
> Caused by: java.io.IOException: open HTTP connection failed.
>
>         at sun.applet.AppletClassLoader.getBytes(Unknown Source)
>
>         at sun.applet.AppletClassLoader.access$100(Unknown Source)
>
>         at sun.applet.AppletClassLoader$1.run(Unknown Source)
>
>         at java.security.AccessController.doPrivileged(Native Method)
>
>         ... 10 more
>
> Manjiri Andahre
> GIS co-ordinator
> PA Fish & Boat commission
> tel: (814)3595182
> fax:(814)3595153
>
>
>
> -----Original Message-----
> From: Richard Greenwood [mailto:richard.greenwood at gmail.com]
> Sent: Thursday, November 18, 2004 9:43 AM
> To: Manjiri Andhare
> Subject: Re: [UMN_MAPSERVER-USERS] jBox Java applet
>
> Do you have a Java Virtual machine installed?
> Get one here:
>
>    http://www.java.com/en/download/installed.jsp
>
> Rich
> --
> Richard Greenwood
> richard.greenwood at gmail.com
> www.greenwoodmap.com
>
> On Thu, 18 Nov 2004 07:29:16 -0600, Manjiri Andhare
> <mandhare at state.pa.us> wrote:
> > Hi!
> > I was looking for the functionality to draw a rectangle for zooming in
> on
> > the map. I found jBox by Steve Lime on
> > http://mapserver.gis.umn.edu/contributed.html
> > I have Windows 2000 and I'm running mapserver 4.2 on IIS.
> > I follwed the steps from jBox HOWTO 4.2 to test it with the workshop
> demo.
> > But when i try to run the workshop demo with "Basic application"
> option, in
> > the status bar of Browser(I'm using IE 6.0) I get the message as;
> > Loading Java Applet Failed..
> > And I'm not getting the reason behind this..
> > Here is the changed portion of itasca_basic.html file:
> > ***************************************
> >
> > <html>
> > <head>
> >   <title>MapServer - Itasca Application</title>
> >    <script language="javascript">
> >
> >    function setbox_handler(name,minx,miny,maxx,maxy)
> >      {
> >      document.mapserv.imgbox.value = minx + " " + miny
> > + " " + maxx + " " + maxy;
> >      document.mapserv.imgxy.value = minx + " " + miny;
> >      //additional code can go here prior to the form
> > submit, below
> >      //for example, form validation code.
> >      document.mapserv.submit();
> >       }
> >    function seterror_handler(message)
> >    {
> >     alert(message);
> >    }
> >   </script>
> > </head>
> > <body bgcolor="#ffffff">
> >
> > <center><h1>MapServer - Itasca Application</h1></center>
> > <hr>
> > <form method="GET" action="cgi-bin/mapserv.exe" name="mapserv" >
> >
> > <center>
> > <table border="0" cellspacing="0" cellpadding="4">
> > <tr>
> > <td valign="top" align="center">
> >   <table width="390" border="0" cellspacing="0" cellpadding="4"
> > align="center" bgcolor="#666666">
> >     <tr>
> >       <td colspan="2">
> >   <applet
> >    codebase="java\jBox"
> >    archive="jBoxPNG.jar,png.jar"
> >    code="jBoxPNG.class"
> >    width="600"
> >    height="600"
> >    name="jBox"
> >    MAYSCRIPT>
> >    <param name="image" value="http:\\[host][img]">
> >   </applet>
> >  </td>
> >  </tr>
> >     <tr><td bgcolor="#666666">
> >       <img title="scalebar (mi)" alt="scalebar (mi)" src="[scalebar]">
> >     </td></tr>
> >   </table>
> > </td>
> > <td valign="top" bgcolor="#ffffff">
> >   <table cellpadding="5" cellspacing="0" border="0" bgcolor="#ffffff">
> >     <tr><td>
> >       <center><input type="submit" value="Refresh/Query"></center>
> >       <p>
> >
> >       <input type="radio" name="mode" value="browse" checked>
> <b>Browse
> > map</b><br>
> >       <input type="radio" name="mode" value="query"> <b>Query
> > feature</b><br>
> >       <input type="radio" name="mode" value="nquery"> <b>Query
> multiple
> > features</b>
> >
> >       <hr>
> >
> >       <p>
> >       <b>Select Layers to Display: </b><br>
> >       <select multiple name="layer" size=3>
> >         <option value="airports" [airports_select]> Airports
> >         <option value="cities" [cities_select]> Cities
> >         <option value="lakespy2" [lakespy2_select]> Lakes & Rivers
> >         <option value="dlgstln2" [dlgstln2_select]> Streams
> >         <option value="roads" [roads_select]> Roads
> >         <option value="twprgpy3" [twprgpy3_select]> Townships
> >         <option value="drgs" [drgs_select]> USGS 1:250,000 Quads
> >       </select>
> >
> >       <p>
> >       Zoom In <input type=radio name=zoomdir value=1
> [zoomdir_1_check]>
> >       Pan <input type=radio name=zoomdir value=0 [zoomdir_0_check]>
> >       Zoom Out <input type=radio name=zoomdir value=-1
> [zoomdir_-1_check]>
> >       <p>
> >       Zoom Size <input type=text name=zoomsize size=4
> value=[zoomsize]>
> >       <p>
> >
> >       <font size=+1><b>Legend</b></font><br><hr>
> >       <img src="[legend]"><hr>
> >
> >       <p>
> >       <center>
> >   <input name="ref" type="image" src="[ref]"
> > border="0"></center>
> >     </td></tr></table>
> >
> >   </td></tr>
> > </table>
> > </center>
> > <input type="hidden" name="imgbox" value="-1 -1 -1 -1">
> >
> > ***************************************************
> >
> > I have placed the jBox as:
> > c:\Inetpub\wwwroot\MapServer\java\jBox
> > And I have placed the jar files, class files and java source files
> from
> > lib,classes and src folders respectively under
> > c:\Inetpub\wwwroot\MapServer\java\jBox
> >
> > If somebody could point out what i'm missing,it'll be great!!
> > Thank you,
> > Manjiri Andhare
> > GIS Coordinator
> > PA Fish & Boat Commission
> > U.S.A.
> >
>
>