Calling Exe from Servlet

I need to call 1 exe from a servlet. I tried giving <FORM ACTION="Path for that Exe">
But its not working. Can't I call exe or any other file other than .class file ?
Help me out.

I need to call 1 exe from a servlet. I tried giving
<FORM ACTION="Path for that Exe">
But its not working. Can't I call exe or any other
file other than .class file ?
Help me out.Here goes my Code
import java.io.*;
import java.util.Hashtable;
import java.util.Date.*;
import javax.servlet.*;
import javax.servlet.http.*;
* Date Servlet
* This is a simple servlet to demonstrate server-side include
* It returns a string representation of the current time. And also client IP and Name
* @author
* 16 Oct. 2003
public class PrintDate extends HttpServlet{
     public void doGet(HttpServletRequest request, HttpServletResponse response)
          throws ServletException, IOException{
          response.setContentType("text/plain");
          PrintWriter out = response.getWriter();
          //ServletOutputStream out = response.getOutputStream();
          String host = request.getRemoteAddr();
          //out.println("I am printing the host:" + host);
          out.println("<HTML>");
          out.println("<HEAD></HEAD>");
          out.println("<BODY>");
          out.println("<FORM METHOD=get ACTION=/servlet/Kudremukh_pan>");
          out.println("<INPUT TYPE=text SIZE=15>");
          out.println("<INPUT TYPE=submit VALUE=submit>");
          out.println("</FORM></BODY></HTML>");

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Calling class from servlet gives 500

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Thanks for the replies which have tracked the problem down.
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Call exe from an exe

hello
How we can call an exe from an another exe.
If the exe installed in a PC, it had not LabView and whatever files or drivers needed.
I create a dll file. call functions node used to call the dll. But it is not calling the dll
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..........Gireesh..........
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smercurio_fc , Attaching the ver 8.0 files.
Gireesh, If you want that to run then you must have 8.2 runtime engine.
As smercurio_fc said we use System Exec VI to run exe or any other kind of programs & we don't need any DLL. Shared variable is the person who can communicate between two different exe.
You can have look at the sample code if you have LV 8.0.
Attachments:
Untitled Project 1 Folder.zip ‏33 KB

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Hello NI,
I want to call the exe from the labview. presently i am using command.vi to open the exe. but it works only with source code. after creating the exe it doesnt work.
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Working directory should be c:\windows\system32
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          Fannie <[email protected]> wrote in message
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Calling ejbs from servlets without using web apps.

i am trying to instantiate and ejb from a servlet but it gives me the
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          -8787844: null
          java.lang.ClassCastException
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          bleRemoteObject.java:296)
          at
          javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:137)
          at webmedx.servlet.Webmedx.init(Webmedx.java:23)
          at javax.servlet.GenericServlet.init(GenericServlet.java:258)
          at
          weblogic.servlet.internal.ServletStubImpl.createServlet(ServletStubIm
          pl.java:474)
          at
          weblogic.servlet.internal.ServletStubImpl.createInstances(ServletStub
          Impl.java, Compiled Code)
          at
          weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubI
          mpl.java:422)
          at
          weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.
          java:187)
          at
          weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
          pl.java:118)
          at
          weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
          textImpl.java:760)
          at
          weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
          textImpl.java:707)
          at
          weblogic.servlet.internal.ServletContextManager.invokeServlet(Servlet
          ContextManager.java:251)
          at
          weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.jav
          a:369)
          at
          weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:269)
          at weblogic.kernel.ExecuteThread.run(ExecuteThread.java, Compiled
          Code)
          configuration:
          WebLogic startup settings are presently:
          CLASSPATH Prefix
          \weblogic\lib\weblogic510sp5boot.jar;\j2ee\lib\j2ee.jar;\web
          logic\lib\servlet.jar;\weblogic\lib\jaxp.jar;\weblogic\lib\parser.jar
          CLASSPATH
          \weblogic\lib\weblogic510sp5boot.jar;\j2ee\lib\j2ee.jar;\web
          logic\lib\servlet.jar;\weblogic\lib\jaxp.jar;\weblogic\lib\parser.jar;\weblo
          gic\
          jre1_2\lib\tools.jar;\weblogic\jre1_2\jre\lib\rt.jar;\weblogic\jre1_2\jre\li
          b\i1
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          gic\lib\weblogicaux.jar;C:\weblogic\eval\cloudscape\lib\cloudscape.jar
          JAVA_HOME \weblogic\jre1_2
          WEBLOGIC_LICENSEDIR C:\weblogic\license
          WEBLOGIC_HOME C:\weblogic
          system properties:
          java.security.manager
          java.security.policy=\weblogic\weblogic.policy
          weblogic.system.home=\weblogic
          java.compiler=symcjit
          weblogic.class.path=\weblogic\lib\weblogic510sp5.jar;\weblog
          ic\license;\weblogic\classes;\weblogic\lib\weblogicaux.jar
          INITIAL_HEAP 64 MB
          MAX_HEAP 64 MB
          SERVERCLASSPATH
          \weblogic\lib\weblogic510sp5boot.jar;\j2ee\lib\j2ee.jar;\web
          logic\lib\servlet.jar;\weblogic\lib\jaxp.jar;\weblogic\lib\parser.jar;\weblo
          gic\
          jre1_2\jre\lib\rt.jar;\weblogic\jre1_2\jre\lib\i18n.jar;C:\weblogic\classes\
          boot
          ;C:\weblogic\eval\cloudscape\lib\cloudscape.jar
          Type "wlconfig -help" for program usage.
          code:
          public void init() throws ServletException{
          try{
          Log.debug("in servlet.Webmedx.init");
          Properties h = new Properties();
          h.put(Context.INITIAL_CONTEXT_FACTORY,
          "weblogic.jndi.WLInitialContextFactory");
          h.put(Context.PROVIDER_URL, "t3://localhost:7001");
          Context initial = new InitialContext(h);
          Object objref = initial.lookup("webmedx/pool");
          webmedxpoolhome =
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          Log.error(ex);


The problem before was that you were trying to load the same class from
          2 different class paths. The ClassCastException is very un-intuitive in this
          case.
          Peter Ghosh wrote:
          > however, when i added it to the classpath prefix (not the
          > weblogic.classpath) it seemed to do the trick. very odd.
          > thanks,
          > peter
          >
          > "Peter Ghosh" <[email protected]> wrote in message
          > news:[email protected]...
          > > i tried that but no luck. any other suggestions?
          > > peter
          > >
          > > "Ohad Shany" <[email protected]> wrote in message
          > > news:[email protected]...
          > > > Is your EJB classes on the servlet classpath?
          > > > (weblogic.httpd.servlet.classpath property)
          > > >
          > > > I had some strange casting problem when my EJB classes was on the
          > servlet
          > > > classpath
          > > > and it was gone when i moved them to the weblogic.class.path . Worth a
          > > try.
          > > >
          > > > OHAD
          > > >
          > > > Peter Ghosh wrote:
          > > >
          > > > > i am trying to instantiate and ejb from a servlet but it gives me the
          > > > > following error. the configuration and code that generated this error
          > is
          > > > > attached below.
          > > > > oddly enough the same chunk of code works fine in a stand alone client
          > > if
          > > > > j2ee.jar;weblogic\classes and weblogicaux.jar are included in the
          > > classpath.
          > > > > any help would be appreciated.
          > > > > peter
          > > > >
          > > > > -8787844: in servlet.Webmedx.init
          > > > > -8787844: null
          > > > > java.lang.ClassCastException
          > > > > at
          > > > > com.sun.corba.ee.internal.javax.rmi.PortableRemoteObject.narrow(Porta
          > > > > bleRemoteObject.java:296)
          > > > > at
          > > > > javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:137)
          > > > > at webmedx.servlet.Webmedx.init(Webmedx.java:23)
          > > > > at javax.servlet.GenericServlet.init(GenericServlet.java:258)
          > > > > at
          > > > > weblogic.servlet.internal.ServletStubImpl.createServlet(ServletStubIm
          > > > > pl.java:474)
          > > > > at
          > > > > weblogic.servlet.internal.ServletStubImpl.createInstances(ServletStub
          > > > > Impl.java, Compiled Code)
          > > > > at
          > > > > weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubI
          > > > > mpl.java:422)
          > > > > at
          > > > > weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.
          > > > > java:187)
          > > > > at
          > > > > weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
          > > > > pl.java:118)
          > > > > at
          > > > > weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
          > > > > textImpl.java:760)
          > > > > at
          > > > > weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
          > > > > textImpl.java:707)
          > > > > at
          > > > > weblogic.servlet.internal.ServletContextManager.invokeServlet(Servlet
          > > > > ContextManager.java:251)
          > > > > at
          > > > > weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.jav
          > > > > a:369)
          > > > > at
          > > > > weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:269)
          > > > >
          > > > > at weblogic.kernel.ExecuteThread.run(ExecuteThread.java, Compiled
          > > > > Code)
          > > > >
          > > > > configuration:
          > > > >
          > > > > WebLogic startup settings are presently:
          > > > >
          > > > > CLASSPATH Prefix
          > > > > \weblogic\lib\weblogic510sp5boot.jar;\j2ee\lib\j2ee.jar;\web
          > > > > logic\lib\servlet.jar;\weblogic\lib\jaxp.jar;\weblogic\lib\parser.jar
          > > > > CLASSPATH
          > > > > \weblogic\lib\weblogic510sp5boot.jar;\j2ee\lib\j2ee.jar;\web
          > > > >
          > >
          > logic\lib\servlet.jar;\weblogic\lib\jaxp.jar;\weblogic\lib\parser.jar;\weblo
          > > > > gic\
          > > > >
          > >
          > jre1_2\lib\tools.jar;\weblogic\jre1_2\jre\lib\rt.jar;\weblogic\jre1_2\jre\li
          > > > > b\i1
          > > > >
          > >
          > 8n.jar;C:\weblogic\license;C:\weblogic\classes\boot;C:\weblogic\classes;C:\w
          > > > > eblo
          > > > > gic\lib\weblogicaux.jar;C:\weblogic\eval\cloudscape\lib\cloudscape.jar
          > > > > JAVA_HOME \weblogic\jre1_2
          > > > > WEBLOGIC_LICENSEDIR C:\weblogic\license
          > > > > WEBLOGIC_HOME C:\weblogic
          > > > > system properties:
          > > > > java.security.manager
          > > > > java.security.policy=\weblogic\weblogic.policy
          > > > > weblogic.system.home=\weblogic
          > > > > java.compiler=symcjit
          > > > >
          > > > > weblogic.class.path=\weblogic\lib\weblogic510sp5.jar;\weblog
          > > > > ic\license;\weblogic\classes;\weblogic\lib\weblogicaux.jar
          > > > > INITIAL_HEAP 64 MB
          > > > > MAX_HEAP 64 MB
          > > > > SERVERCLASSPATH
          > > > > \weblogic\lib\weblogic510sp5boot.jar;\j2ee\lib\j2ee.jar;\web
          > > > >
          > >
          > logic\lib\servlet.jar;\weblogic\lib\jaxp.jar;\weblogic\lib\parser.jar;\weblo
          > > > > gic\
          > > > >
          > >
          > jre1_2\jre\lib\rt.jar;\weblogic\jre1_2\jre\lib\i18n.jar;C:\weblogic\classes\
          > > > > boot
          > > > > ;C:\weblogic\eval\cloudscape\lib\cloudscape.jar
          > > > >
          > > > > Type "wlconfig -help" for program usage.
          > > > >
          > > > > code:
          > > > >
          > > > > public void init() throws ServletException{
          > > > > try{
          > > > > Log.debug("in servlet.Webmedx.init");
          > > > > Properties h = new Properties();
          > > > > h.put(Context.INITIAL_CONTEXT_FACTORY,
          > > > > "weblogic.jndi.WLInitialContextFactory");
          > > > > h.put(Context.PROVIDER_URL, "t3://localhost:7001");
          > > > > Context initial = new InitialContext(h);
          > > > > Object objref = initial.lookup("webmedx/pool");
          > > > > webmedxpoolhome =
          > > > >
          > > > >
          > >
          > (WebmedxPoolHome)PortableRemoteObject.narrow(objref,WebmedxPoolHome.class);
          > > > > }catch(Exception ex){
          > > > > Log.error(ex);
          > > > > }
          > > > > }
          > > >
          > >
          > >

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