How can I run C++ code through JNI?

in the Java tutorial "Lesson: Writing a Java Program with Native Methods ", (see "http://java.sun.com/docs/books/tutorial/native1.1/stepbystep/index.html") every thing works fine if I follow all the instruction. but if I change the Native Method Implementation file from:
#include <jni.h>
#include "HelloWorld.h"
#include <stdio.h>
JNIEXPORT void JNICALL
Java_HelloWorld_displayHelloWorld(JNIEnv *env, jobject obj)
printf("Hello world!\n");
return;
to:
#include <jni.h>
#include "HelloWorld.h"
#include <iostream.h>
JNIEXPORT void JNICALL
Java_HelloWorld_displayHelloWorld(JNIEnv *env, jobject obj)
cout <<"Hello world!\n";
return;
Although ia have a right LD_LIBRARY_PATH setting, I get a error msg after running:
Exception in thread "main" java.lang.UnsatisfiedLinkError: no hello in java.library.path
at java.lang.Throwable.fillInStackTrace(Native Method)
at java.lang.Throwable.<init>(Throwable.java:94)
at java.lang.Error.<init>(Error.java:50)
at java.lang.LinkageError.<init>(LinkageError.java:43)
at java.lang.UnsatisfiedLinkError.<init>(UnsatisfiedLinkError.java:42)
at java.lang.ClassLoader.loadLibrary(Compiled Code)
at java.lang.Runtime.loadLibrary0(Runtime.java:470)
at java.lang.System.loadLibrary(System.java:778)
at <Unloaded Method>
Any help will be appreciated.

From the exception message you submitted here i guess that you might try to load dll of name hello then problem is unable to find the dll refered by you.
Workaround:
Place the dll under same directory from where your program is excuted. Otherwise include the dll path to classpath this i'm not sure i have to test it.
Hope it might help you some extent.
regards
jayp

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hello, everybody:
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        private var radius:Number;
        private var color:uint;
        private var vx:Number;
        private var vy:Number;
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package {
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    import flash.events.Event;
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thanks every body's help!

ok, thanks for your reply ! I run this code in the Flex builder 3!and the Ball class and the Chain class are all in the same AS project!
and i changed the ball.pv property as public in the Ball class, and the Chain class has no wrong syntactic analysis,but the AS code don't run.so this is the problem.
2010-04-21
Fang
发件人: Ned Murphy <[email protected]>
发送时间: 2010-04-20 23:01
主题: how can i run this code correctly?
收件人: fang alvin <[email protected]>
I don't see that the Ball class has a pv property, or that you even try to access a pv property in the Chain class. All of the properties in your Ball class are declared as private, so you probably cannot access them directly. They would need to be public. Also, I still don't see where you import Ball in the chain class such that it can use it.

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*& Report ZSPOOLTOPDF                                                 *
*& Converts spool request into PDF document and emails it to           *
*& recipicant.                                                         *
*& Execution                                                           *
*& This program must be run as a background job in-order for the write *
*& commands to create a Spool request rather than be displayed on      *
*& screen                                                              *
REPORT zspooltopdf.
PARAMETER: p_email1 LIKE somlreci1-receiver
                                    DEFAULT '[email protected]',
           p_sender LIKE somlreci1-receiver
                                    DEFAULT '[email protected]',
           p_delspl AS CHECKBOX.
*DATA DECLARATION
DATA: gd_recsize TYPE i.
* Spool IDs
TYPES: BEGIN OF t_tbtcp.
        INCLUDE STRUCTURE tbtcp.
TYPES: END OF t_tbtcp.
DATA: it_tbtcp TYPE STANDARD TABLE OF t_tbtcp INITIAL SIZE 0,
      wa_tbtcp TYPE t_tbtcp.
* Job Runtime Parameters
DATA: gd_eventid LIKE tbtcm-eventid,
      gd_eventparm LIKE tbtcm-eventparm,
      gd_external_program_active LIKE tbtcm-xpgactive,
      gd_jobcount LIKE tbtcm-jobcount,
      gd_jobname LIKE tbtcm-jobname,
      gd_stepcount LIKE tbtcm-stepcount,
      gd_error    TYPE sy-subrc,
      gd_reciever TYPE sy-subrc.
DATA: w_recsize TYPE i.
DATA: gd_subject   LIKE sodocchgi1-obj_descr,
      it_mess_bod LIKE solisti1 OCCURS 0 WITH HEADER LINE,
      it_mess_att LIKE solisti1 OCCURS 0 WITH HEADER LINE,
      gd_sender_type     LIKE soextreci1-adr_typ,
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      gd_attachment_name TYPE so_obj_des.
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DATA: gd_spool_nr LIKE tsp01-rqident,
      gd_destination LIKE rlgrap-filename,
      gd_bytecount LIKE tst01-dsize,
      gd_buffer TYPE string.
* Binary store for PDF
DATA: BEGIN OF it_pdf_output OCCURS 0.
        INCLUDE STRUCTURE tline.
DATA: END OF it_pdf_output.
CONSTANTS: c_dev LIKE sy-sysid VALUE 'DEV',
           c_no(1)     TYPE c   VALUE ' ',
           c_device(4) TYPE c   VALUE 'LOCL'.
*START-OF-SELECTION.
START-OF-SELECTION.
* Write statement to represent report output. Spool request is created
* if write statement is executed in background. This could also be an
* ALV grid which would be converted to PDF without any extra effort
WRITE 'Hello World'.
new-page.
commit work.
new-page print off.
IF sy-batch EQ 'X'.
    PERFORM get_job_details.
    PERFORM obtain_spool_id.
*** Alternative way could be to submit another program and store spool
*** id into memory, will be stored in sy-spono.
*submit ZSPOOLTOPDF2
*        to sap-spool
*        spool parameters   %_print
*        archive parameters %_print
*        without spool dynpro
*        and return.
* Get spool id from program called above
* IMPORT w_spool_nr FROM MEMORY ID 'SPOOLTOPDF'.
    PERFORM convert_spool_to_pdf.
    PERFORM process_email.
    if p_delspl EQ 'X'.
      PERFORM delete_spool.
    endif.
    IF sy-sysid = c_dev.
      wait up to 5 seconds.
      SUBMIT rsconn01 WITH mode   = 'INT'
                      WITH output = 'X'
                      AND RETURN.
    ENDIF.
ELSE.
    SKIP.
    WRITE:/ 'Program must be executed in background in-order for spool',
            'request to be created.'.
ENDIF.
*       FORM obtain_spool_id                                          *
FORM obtain_spool_id.
CHECK NOT ( gd_jobname IS INITIAL ).
CHECK NOT ( gd_jobcount IS INITIAL ).
SELECT * FROM tbtcp
                 INTO TABLE it_tbtcp
                 WHERE      jobname     = gd_jobname
                 AND        jobcount    = gd_jobcount
                 AND        stepcount   = gd_stepcount
                 AND        listident   <> '0000000000'
                 ORDER BY   jobname
                            jobcount
                            stepcount.
READ TABLE it_tbtcp INTO wa_tbtcp INDEX 1.
IF sy-subrc = 0.
    message s004(zdd) with gd_spool_nr.
    gd_spool_nr = wa_tbtcp-listident.
    MESSAGE s004(zdd) WITH gd_spool_nr.
ELSE.
    MESSAGE s005(zdd).
ENDIF.
ENDFORM.
*       FORM get_job_details                                          *
FORM get_job_details.
* Get current job details
CALL FUNCTION 'GET_JOB_RUNTIME_INFO'
       IMPORTING
            eventid                 = gd_eventid
            eventparm               = gd_eventparm
            external_program_active = gd_external_program_active
            jobcount                = gd_jobcount
            jobname                 = gd_jobname
            stepcount               = gd_stepcount
       EXCEPTIONS
            no_runtime_info         = 1
            OTHERS                  = 2.
ENDFORM.
*       FORM convert_spool_to_pdf                                     *
FORM convert_spool_to_pdf.
CALL FUNCTION 'CONVERT_ABAPSPOOLJOB_2_PDF'
       EXPORTING
            src_spoolid              = gd_spool_nr
            no_dialog                = c_no
            dst_device               = c_device
       IMPORTING
            pdf_bytecount            = gd_bytecount
       TABLES
            pdf                      = it_pdf_output
       EXCEPTIONS
            err_no_abap_spooljob     = 1
            err_no_spooljob          = 2
            err_no_permission        = 3
            err_conv_not_possible    = 4
            err_bad_destdevice       = 5
            user_cancelled           = 6
            err_spoolerror           = 7
            err_temseerror           = 8
            err_btcjob_open_failed   = 9
            err_btcjob_submit_failed = 10
            err_btcjob_close_failed = 11
            OTHERS                   = 12.
CHECK sy-subrc = 0.
* Transfer the 132-long strings to 255-long strings
LOOP AT it_pdf_output.
    TRANSLATE it_pdf_output USING ' ~'.
    CONCATENATE gd_buffer it_pdf_output INTO gd_buffer.
ENDLOOP.
TRANSLATE gd_buffer USING '~ '.
DO.
    it_mess_att = gd_buffer.
    APPEND it_mess_att.
    SHIFT gd_buffer LEFT BY 255 PLACES.
    IF gd_buffer IS INITIAL.
      EXIT.
    ENDIF.
ENDDO.
ENDFORM.
*       FORM process_email                                            *
FORM process_email.
DESCRIBE TABLE it_mess_att LINES gd_recsize.
CHECK gd_recsize > 0.
PERFORM send_email USING p_email1.
* perform send_email using p_email2.
ENDFORM.
*       FORM send_email                                               *
* --> p_email                                                       *
FORM send_email USING p_email.
CHECK NOT ( p_email IS INITIAL ).
REFRESH it_mess_bod.
* Default subject matter
gd_subject         = 'Subject'.
gd_attachment_desc = 'Attachname'.
* CONCATENATE 'attach_name' ' ' INTO gd_attachment_name.
it_mess_bod        = 'Message Body text, line 1'.
APPEND it_mess_bod.
it_mess_bod        = 'Message Body text, line 2...'.
APPEND it_mess_bod.
* If no sender specified - default blank
IF p_sender EQ space.
    gd_sender_type = space.
ELSE.
    gd_sender_type = 'INT'.
ENDIF.
* Send file by email as .xls speadsheet
PERFORM send_file_as_email_attachment
                               tables it_mess_bod
                                      it_mess_att
                                using p_email
                                      'Example .xls documnet attachment'
                                      'PDF'
                                      gd_attachment_name
                                      gd_attachment_desc
                                      p_sender
                                      gd_sender_type
                             changing gd_error
                                      gd_reciever.
ENDFORM.
*       FORM delete_spool                                             *
FORM delete_spool.
DATA: ld_spool_nr TYPE tsp01_sp0r-rqid_char.
ld_spool_nr = gd_spool_nr.
CHECK p_delspl <> c_no.
CALL FUNCTION 'RSPO_R_RDELETE_SPOOLREQ'
       EXPORTING
            spoolid = ld_spool_nr.
ENDFORM.
*&      Form SEND_FILE_AS_EMAIL_ATTACHMENT
*       Send email
FORM send_file_as_email_attachment tables it_message
                                          it_attach
                                    using p_email
                                          p_mtitle
                                          p_format
                                          p_filename
                                          p_attdescription
                                          p_sender_address
                                          p_sender_addres_type
                                 changing p_error
                                          p_reciever.
DATA: ld_error    TYPE sy-subrc,
        ld_reciever TYPE sy-subrc,
        ld_mtitle LIKE sodocchgi1-obj_descr,
        ld_email LIKE somlreci1-receiver,
        ld_format TYPE so_obj_tp ,
        ld_attdescription TYPE so_obj_nam ,
        ld_attfilename TYPE so_obj_des ,
        ld_sender_address LIKE soextreci1-receiver,
        ld_sender_address_type LIKE soextreci1-adr_typ,
        ld_receiver LIKE sy-subrc.
data:   t_packing_list like sopcklsti1 occurs 0 with header line,
        t_contents like solisti1 occurs 0 with header line,
        t_receivers like somlreci1 occurs 0 with header line,
        t_attachment like solisti1 occurs 0 with header line,
        t_object_header like solisti1 occurs 0 with header line,
        w_cnt type i,
        w_sent_all(1) type c,
        w_doc_data like sodocchgi1.
ld_email   = p_email.
ld_mtitle = p_mtitle.
ld_format              = p_format.
ld_attdescription      = p_attdescription.
ld_attfilename         = p_filename.
ld_sender_address      = p_sender_address.
ld_sender_address_type = p_sender_addres_type.
* Fill the document data.
w_doc_data-doc_size = 1.
* Populate the subject/generic message attributes
w_doc_data-obj_langu = sy-langu.
w_doc_data-obj_name = 'SAPRPT'.
w_doc_data-obj_descr = ld_mtitle .
w_doc_data-sensitivty = 'F'.
* Fill the document data and get size of attachment
CLEAR w_doc_data.
READ TABLE it_attach INDEX w_cnt.
w_doc_data-doc_size =
     ( w_cnt - 1 ) * 255 + STRLEN( it_attach ).
w_doc_data-obj_langu = sy-langu.
w_doc_data-obj_name   = 'SAPRPT'.
w_doc_data-obj_descr = ld_mtitle.
w_doc_data-sensitivty = 'F'.
CLEAR t_attachment.
REFRESH t_attachment.
t_attachment[] = it_attach[].
* Describe the body of the message
CLEAR t_packing_list.
REFRESH t_packing_list.
t_packing_list-transf_bin = space.
t_packing_list-head_start = 1.
t_packing_list-head_num = 0.
t_packing_list-body_start = 1.
DESCRIBE TABLE it_message LINES t_packing_list-body_num.
t_packing_list-doc_type = 'RAW'.
APPEND t_packing_list.
* Create attachment notification
t_packing_list-transf_bin = 'X'.
t_packing_list-head_start = 1.
t_packing_list-head_num   = 1.
t_packing_list-body_start = 1.
DESCRIBE TABLE t_attachment LINES t_packing_list-body_num.
t_packing_list-doc_type   = ld_format.
t_packing_list-obj_descr = ld_attdescription.
t_packing_list-obj_name   = ld_attfilename.
t_packing_list-doc_size   = t_packing_list-body_num * 255.
APPEND t_packing_list.
* Add the recipients email address
CLEAR t_receivers.
REFRESH t_receivers.
t_receivers-receiver = ld_email.
t_receivers-rec_type = 'U'.
t_receivers-com_type = 'INT'.
t_receivers-notif_del = 'X'.
t_receivers-notif_ndel = 'X'.
APPEND t_receivers.
CALL FUNCTION 'SO_DOCUMENT_SEND_API1'
       EXPORTING
            document_data              = w_doc_data
            put_in_outbox              = 'X'
            sender_address             = ld_sender_address
            sender_address_type        = ld_sender_address_type
            commit_work                = 'X'
       IMPORTING
            sent_to_all                = w_sent_all
       TABLES
            packing_list               = t_packing_list
            contents_bin               = t_attachment
            contents_txt               = it_message
            receivers                  = t_receivers
       EXCEPTIONS
            too_many_receivers         = 1
            document_not_sent          = 2
            document_type_not_exist    = 3
            operation_no_authorization = 4
            parameter_error            = 5
            x_error                    = 6
            enqueue_error              = 7
            OTHERS                     = 8.
* Populate zerror return code
ld_error = sy-subrc.
* Populate zreceiver return code
LOOP AT t_receivers.
    ld_receiver = t_receivers-retrn_code.
ENDLOOP.
ENDFORM.
Girish

Help:How can I run the J2EE Client Application? Thanks

Help:How can I run the J2EE Client Application that will access the remote J2EE1.4 application server which runs on another host computer?
I have developped a stateles senterprise java bean name converter and deloyed it in the j2ee1.4 application server on the host machine A. The converterbean provides the remote home interface and remote interface. At the same time I have developped the j2ee application client named convertappclient. When I access the conveter bean at host computer A through the script 'appclient.bat' as 'appclient -client convertappclient.jar', the client can access the bean sucessfully. Now I want to access the bean through the script 'appclient.bat' at host computer B,what files should I copy from host computer A to host computer B;and what the command line should be like? Thanks!
The following are the code of the enterprise java bean and it's home interface .
The client code is also provided.
The enterprise java bean:
package converter;
import java.rmi.RemoteException;
import javax.ejb.SessionBean;
import javax.ejb.SessionContext;
import java.math.*;
public class ConverterBean implements SessionBean {
BigDecimal yenRate = new BigDecimal("121.6000");
BigDecimal euroRate = new BigDecimal("0.0077");
public ConverterBean() {
public BigDecimal dollarToYen(BigDecimal dollars) {
BigDecimal result = dollars.multiply(yenRate);
return result.setScale(2, BigDecimal.ROUND_UP);
public BigDecimal yenToEuro(BigDecimal yen) {
BigDecimal result = yen.multiply(euroRate);
return result.setScale(2, BigDecimal.ROUND_UP);
public void ejbCreate() {
public void ejbRemove() {
public void ejbActivate() {
public void ejbPassivate() {
public void setSessionContext(SessionContext sc) {
The bean's remote home interface :
package converter;
import java.rmi.RemoteException;
import javax.ejb.CreateException;
import javax.ejb.EJBHome;
public interface ConverterHome extends EJBHome {
Converter create() throws RemoteException, CreateException;
The bean's remote interface:
package converter;
import javax.ejb.EJBObject;
import java.rmi.RemoteException;
import java.math.*;
public interface Converter extends EJBObject {
public BigDecimal dollarToYen(BigDecimal dollars) throws RemoteException;
public BigDecimal yenToEuro(BigDecimal yen) throws RemoteException;
The j2ee application client:
import converter.Converter;
import converter.ConverterHome;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.rmi.PortableRemoteObject;
import java.math.BigDecimal;
public class ConverterClient {
public static void main(String[] args) {
try {
Context initial = new InitialContext();
System.setProperty("java.naming.factory.initial","org.jnp.interfaces.NamingContextFactory");
System.setProperty("java.naming.provider.url","jnp://10.144.97.250:3700");
Context myEnv = (Context) initial.lookup("java:comp/env");
Object objref = myEnv.lookup("ejb/SimpleConverter");
ConverterHome home =
(ConverterHome) PortableRemoteObject.narrow(objref,
ConverterHome.class);
Converter currencyConverter = home.create();
BigDecimal param = new BigDecimal("100.00");
BigDecimal amount = currencyConverter.dollarToYen(param);
System.out.println(amount);
amount = currencyConverter.yenToEuro(param);
System.out.println(amount);
System.exit(0);
} catch (Exception ex) {
System.err.println("Caught an unexpected exception!");
ex.printStackTrace();
}

Surprisingly I find an upsurge in the number of posts with this same problem. I recently found a post which gave a nice link for this. Follow the steps and it should help:
http://docs.sun.com/source/819-0079/dgacc.html#wp1022105

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Hi,
While i was searching for my topic on google code, i found one project and i download that.
But its "MyProject.app" with yellow cplored xcode sumbol and i can not run this file.
Does any one know that how can i run this type of file. i want to run this project.
And another question. I want to create executable file from my project like exe on windows. Is there any way to create this type of file????
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vavdiyaharesh wrote:
Hey,
When i double click on .app file it quit and show me message like "The application project140 quit unexpectedly"........."
So is there any problem in .app file?
On your machine sure sounds like it.
How can i create exe file and how can i pass -0 to compiler ..iu don;t see any option in xcode for that.....
giove me solution...
I think you'd be better off taking some training, or at least working through some of Apple's tutorials.
http://developer.apple.com/documentation/developertools/conceptual/XcodeQuickTou r/qtintro/chapter_1_section1.html
Thanks.
You're welcome.

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Reports version: Report Builder 6.0.8.13.1
Oracle version: Oracle8i Enterprise Edition Release 8.1.7.0.0
I want to run the same report for different input parameter values and spool each o/p to different file and ftp to a server. For this, as a first step, I am spooling different input values in to a file, reading those values through a loop and calling the report for that input values. Each report run/execution is taking 15 minutes. Total report execution is taking approximately 4 hours (assuming 16 different input values) to complete. So I have to wait 4 hours to see ALL outputs.
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Increase the number of server engines running right now it seems there is only one engine running ,increase it to 4 or 6
and then atleast 4 or 6 reports will run simultaneously.
For FTPing the output add to your sript to check whether it is locked and if not then only try to ftp .
Also for more better functionality read the document (chapter 15 ) for 10g reports for its new fuinctionality.
http://download.oracle.com/docs/cd/B14099_17/bi.1012/b14048/toc.htm
Thanks
Subodh

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i dynamic created a obj
and i don't know the method of class,
so i use a String parameter as the method's name
but how can i run the method?
please give me a copy of code, thanks!

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