Calling external Java from ABAP using JCo?

Does anyone know if one can use JCo to write a server application that can be called from ABAP.
We are presently using JCo to communicate from Java to SAP.
But we need to call an external Java program from within ABAP.
Is this possible?
Thanks for any input.
Fred

Hi Gregor,
I was hoping you would reply to this -- these posted messages had been here for quite sometime now.
Anyway, here's the case. Our Basis team is installing the JCo in our SAP development server. This is our first time to implement this technology, so no one has a clue at all.
Got a couple of questions for you...
1. What do we need the JDK for? Is it mainly for editing, running, and compiling java files (e.g. Example5.java)?
2. Does the JDK need to be installed at the SAP server as well? Or it doesn't matter, as long as the java files will be accessible from where it was installed at?
Thanks for any response!

Similar Messages

Calling Java API from ABAP using JCo (Part 2)

Hello,
This is an additional question to thread Calling Java API from ABAP using JCo
Has anyone managed to get the input parameter value
input.getString("REQUTEXT")
that is being passed from ABAP?
If yes, what kind of setting you need to do? Because when I execute, it has no value.
Thus, the below ECHOTEXT parameter returns blank value:
output.setValue(input.getString("REQUTEXT"),"ECHOTEXT");
When I debug by printing the below line, the input XML is indeed without value:
System.out.println(input.toXML());
Anybody knows how to pass input variable from ABAP to JAVA using JCo?
rgs,
hiroshi

Hallo Hiroshi,
as far as I can see, you are doing it the right way. The problem might be that the ABAP program does not fill in this parameter because something went wrong in the SAP System.
Have you tried setting a breakpoint (an HTTP session - remote breakpoint) and tried checking step by step if the value is being processed and put into the REQUTEXT field?
Bye,
Sameer

Calling Java API from ABAP using JCo

I need to call Java API from ABAP & BSP also. For this I have got useful information related to JCo from following blog:
/people/gregor.wolf3/blog/2004/08/26/setup-and-test-sap-java-connector-outbound-connection
But, I am facing one problem. On executing Java program myExample5.java (recommended by Gregor Wolf) from command line I get following error message:
Server JCOSERVER01 changed state from [ STOPPED ] to [ STARTED ]
Exception in server JCOSERVER01:
com.sap.mw.jco.JCO$Exception: (129) JCO_ERROR_SERVER_STARTUP: Server startup failed at Thu Apr 26 13:46:32 IST 2007.
This is caused by either a) erroneous server settings, b) the backend system has
been shutdown, c) network problems. Will try next startup in 1 seconds.
Connect to SAP gateway failed
Connect_PM TPNAME=JCOSERVER01, GWHOST=gateway, GWSERV=3300
LOCATION CPIC (TCP/IP) on local host
ERROR hostname 'gateway' unknown
TIME Thu Apr 26 13:46:32 2007
RELEASE 640
COMPONENT NI (network interface)
VERSION 37
RC -2
MODULE ninti.c
LINE 336
DETAIL NiPGetHostByName2: hostname 'gateway' not found
SYSTEM CALL gethostbyname_r
COUNTER 1.
Can anyone please help me out. Do I need to do any setting?
I'll surely reward points.
Thanks & Regards,
Nilesh Kumar

Hi Nilesh,
From the error i think that the error is with the hostname.
Please enter the the Application Server IP/Hostname.
If you are loggin to SAP System "XX1" from SAP GUI. Then click the change Item tab and see Application server name/IP let say "XX2" for hostname or "xx.xx.xx.xx" for IP.
Replace srv[0] = new Server("gateway","sapgw00","JCOSERVER01",repository);
with srv[0] = new Server("XX2","sapgw00","JCOSERVER01",repository);
If App Server is IP then replace with
srv[0] = new Server("xx.xx.xx.xx","sapgw00","JCOSERVER01",repository);
Let me know if it is throwing any error.
Thanks,
Prashil

Call external URL from ABAP userexit, capture data and return it to SAP?

My apologies if this question has been asked before, but I've searched for a few hours today and haven't found anything directly related to my question. Thank you in advance for any help you may be able to provide!
I would like to be able to make a call from an SAP userexit during Sales Order Entry in the VA01 transaction in the SD module to an external website, allow the user to capture some data in the external site and then pass that data back into the userexit where I can use it to populate internal tables, etc.
I'm completely unfamiliar with Web Dynpro programming, but this seems like a good place to start my search for a solution.
Does this sound like a problem that can be solved with Web Dynpro and what documentation or code examples should I reference to go about building such a solution.
I should also note that I'm hoping to build a solution that could be called from any userexit in R/3, SAP ERP, SAP CRM, etc. and would obviously need to learn about what dependencies to consider (ex: SAP GUI version, SAP product release number, Web AS release, etc.).
Eric

Thank you for the response. Let me provide some additional information.
The external application will be a Hosted Web page. It is not an SAP system.
The external application will be a web page served by a separate system outside of the company domain(shouldn't matter what the technology is I would think - but the web page will be hosted by a different company than the one calling the URL) that would appear as a web page in which the user will enter data, logic will be performed on that data and then some or all of the data would need to be passed back to the calling point in SAP.
For practical discussions it doesn't matter to me if the call in ABAP occurs in an SD userexit, in a custom report, in an HR screen or in a CRM business partner screen. There will be many places where this external application may be called from and I'm just trying to figure out how to call an external HTTPS URL and return data from that web page to the calling point in ABAP.
I hope that clarifies my question.
Thanks!
Eric

Call java from ABAP

JCo connectivity is used to call RFCs from Java. can i call Java from abap?
thanks in advance.....
regards,
Sundararamaprasad

Hi Sundar ,
This link will surely give u an idea about calling java fro ABAP using Jco.
http://www.thespot4sap.com/Articles/SAP_Netweaver_Java_Connector.asp
regards,
aravindh.

I want to call External Java class from the PL/SQL

Hi,
I am using Oracle Apps R11i (11.5.7), I wanted to call external Java class from the PL/SQL. This external Java class is residing in another application server.
How do I do this.
I know one way. Develop C routine in Oracle Apps to call external java class and call this C routine from the PL/SQL.
Is there any simple method available? or any other method?
Thanks in advance.
-Venkat

First of all, this is a Java application you're talking about, right (i.e. it has a main() function)? It's not just a class that you're trying to instantiate is it? If it's an application, you obviously have to start a new virtual machine to run it (rather than using the virtual machine built into the database like stored java). I'm a little leary of your mention of an "application server" as this would more commonly mean that a virtual machine is already over there running with access to this class. In which case, you'd typically interface with SOAP or some other RPC API.
All that aside, as long as you have physical disc access (through NFS or whatever) to the class file, you could use a java wrapper class with a system call to do this. In fact, there is a thread in just the last day or so on this very forum that has the code to do just that (see " Invoking OS Commands from PL/SQL"). However, it's worth noting that the virtual machine will be running on the database server in this case and not the application server.

How to call external Java code from Animate project?

I am creating a trainer using Animate that needs to interface with an aircraft model written in Java. Is there a way to call external Java functions from Animate?
Thanks!

you can import external java files by yepnope
yepnope({nope:[
'your java script file address.js',
],complete: init});
function init() {
codes that work with your js file can be write in here
Zaxist

Calling external programs from Java?

Hi All,
Is there a way of calling external applications from Java without using Runtime.exec(). That method seems quite messy when you are dealing with streaming data from an input file to an output file. Basically what I'm asking is there a way to run a command the same way you would type it in a command shell?
Thanks

LeWalrus wrote:
Ok, I've an external application that I want to be called inside a Java GUI. It has several input arguements, which the format looks something like:
programname inputfile > outputfile
Simple enough.
>
Works fine from a shell command line. From what I understand, this won't work using Runtime.exec() because that method will just start the application. Works fine from Runtime.exec(). Since you are'>' to write stdout to a file you need to us a shell to execute the command.
String[] command = {"sh", "-c","programname inputfile > outputfile"};
Process process = runtime.exec(command);
You need to read, digest and implement the recommendations given in http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html .
File input and output from the application has to be taken care of programatically (java.io stuff). Fine if you've only one input and output. But if you have several input files and hundreds of output files, where does this leave you. It would be much easier if you could pass a string command to the shell directly as if you typed it in the command line yoursel!

Sending XML from ABAP using WEB Service 6.20 to an external server

Hi,
Can anyone help me to send XML file from WAS 6.20 using ABAP withouut XI?
I am trying to send an XML file to an external server from ABAP. I have created the RFC destination in SM59 with address. I am able to make connection to the host but the whole XML file is not delivered to the receiving.
Thanks,
Wilson

if you want to push, then the other system should have some mechanism to receive it, they can be ftp location, http point, or a webservice. check with external system what do they support.
based on what the external system can support , we can come up with further suggestions.

RFC call from MII using JCO

Hi All,
I am calling custom function module from MII using JCO and I am facing one problem. Problem is that if any new field is added in function module in ECC side that is not appearing in RFC structure until we restart the MII server. Can anybody provide any solution. I am using MII 12.1 SP5.
Thanks in Advance
Chandan

I faced this same issue. Only one solution is to reset the JCo Proxy by running following URL in the same MII server
http://<MII Server>/XMII/JCOProxy?mode=reset
This will reset the JCo cache and the new added fields in RFC at SAP end will be reflected in the Request/Response xml structure of the RFC in BLS
Regards
Som

Is it possible to call web service from ABAP SAP 4.6 c..If yes how

Hi Friends,
Is it possible to call web service from ABAP-SAP 4.6 c..If yes Could you please let me know how.
Thanks in Advance.
Murali Krishna K
Edited by: Murali Krishna Kakarla on Jan 26, 2008 7:09 PM
Edited by: Murali Krishna Kakarla on Jan 26, 2008 7:11 PM

Olivier CHRETIEN wrote:>
> Hi Terry,
>
> So these function modules must use the SAPHTTPA RFC destination which uses the exe saphttp.exe ?
>
> How much abap code lines do you have for a web service call ?
> Do you have to code the call specifically for each different web service ?
> Are you able to use the WSDL ?
>
> Nice job if you have coded your own private SOAP runtime !
>
> But I don't think this is an easy solution for everybody...
>
> Regards,
>
> Olivier
Yes, SAPHTTPA (runs on application server) and/or SAPHTTP (runs on front-end pc), one of which, is required for HTTP communication. So far, nothing too elaborate as far as SOAP goes, but the logic is simplistic. Here's some sample code:
DEST = 'SAPHTTPA'.
TRANSLATE HOST TO LOWER CASE.
MYURL = 'wssrvTest/Service.asmx/GetByOrderItem'.
CONCATENATE HOST MYURL INTO MYURL.
REQUEST_HEADERS-DATA =
 'Content-type: application/x-www-form-urlencoded'.
APPEND REQUEST_HEADERS.
CLEAR REQUEST_HEADERS.
*........Convert Order Number to External Format........................
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
 EXPORTING
 INPUT = ORDER
 IMPORTING
 OUTPUT = ORDER.
*........Convert Item Number to External Format.........................
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
 EXPORTING
 INPUT = ITEM
 IMPORTING
 OUTPUT = ITEM.
*........Convert Material Number to External Format.....................
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
 EXPORTING
 INPUT = MATERIAL
 IMPORTING
 OUTPUT = MATERIAL.
CONCATENATE 'sOrder=' ORDER
 INTO REQUEST_BODY-DATA.
APPEND REQUEST_BODY.
CLEAR REQUEST_BODY.
CONCATENATE '&sItem=' ITEM
 INTO REQUEST_BODY-DATA.
APPEND REQUEST_BODY.
CLEAR REQUEST_BODY.
CONCATENATE '&sMaterial=' MATERIAL
 INTO REQUEST_BODY-DATA.
APPEND REQUEST_BODY.
CLEAR REQUEST_BODY.
CALL FUNCTION 'HTTP_POST'
 EXPORTING
 ABSOLUTE_URI = MYURL
 RFC_DESTINATION = DEST
 BLANKSTOCRLF = 'X'
 TABLES
 RESPONSE_ENTITY_BODY = RESPONSE_BODY
 REQUEST_ENTITY_BODY = REQUEST_BODY
 RESPONSE_HEADERS = RESPONSE_HEADERS
 REQUEST_HEADERS = REQUEST_HEADERS
 EXCEPTIONS
 CONNECT_FAILED = 1
 TIMEOUT = 2
 INTERNAL_ERROR = 3
 TCPIP_ERROR = 4
 DATA_ERROR = 5
 SYSTEM_FAILURE = 6
 COMMUNICATION_FAILURE = 7
 OTHERS = 8.
CHECK SY-SUBRC = 0. "more appropriate msg goes here
LOOP AT RESPONSE_BODY.
 IF RESPONSE_BODY+0(7) <> '<string' AND
 RESPONSE_BODY+0(8) <> '</string' AND
 RESPONSE_BODY+0(5) <> '<?xml'.
 SPLIT RESPONSE_BODY-DATA AT '=' INTO FIELD_NAME FIELD_VALUE.
 TRANSLATE FIELD_NAME TO UPPER CASE.
 CASE FIELD_NAME.
 WHEN 'HEIGHT'.
 HEIGHT = FIELD_VALUE.
 WHEN 'WIDTH'.
 WIDTH = FIELD_VALUE.
 WHEN 'LENGTH'.
 LENGTH = FIELD_VALUE.
 WHEN 'WEIGHT'.
 WEIGHT = FIELD_VALUE.
 WHEN 'QTY'.
 QTY = FIELD_VALUE.
 ENDCASE.
 ENDIF.
ENDLOOP.
Hope this helps...
Terry
Edited by: Terry West on Feb 4, 2008 3:08 PM

Call SXPG _ CALL _ SYSTEM from ABAP program

Hi,
Someone may help me? I need to call the function module SXPG _ CALL _ SYSTEM from ABAP program for to encrypt a file.
I created the command by SM49 , but I don't know how I can call it from ABAP program.
Thanks
Maria C

Hi Maria.
This is a possible code you can use:
DATA: log LIKE TABLE OF btcxpm WITH HEADER LINE.
Can contain STDOUT, STDERR
commandname =
CALL FUNCTION SXPG_CALL_SYSTEM
IMPORTING
COMMANDNAME = commandname
PARAMETERS = parameters
EXPORTING
STATUS = status
TABLES
EXEC_PROTOCOL = log
EXCEPTIONS
NO_PERMISSION = 1
COMMAND_NOT_FOUND = 2
PARAMETERS_TOO_LONG = 3
SECURITY_RISK = 4
WRONG_CHECK_CALL_INTERFACE = 5
PROGRAM_START_ERROR = 6
PROGRAM_TERMINATION_ERROR = 7
X_ERROR = 8
PARAMETER_EXPECTED = 9
TOO_MANY_PARAMETERS = 10
ILLEGAL_COMMAND = 11
OTHERS = 12.
The following are the comments of the parameters taken from:
http://help.sap.com/saphelp_40b/helpdata/en/fa/0971ee543b11d1898e0000e8322d00/content.htm
Parameters
IMPORTING Parameters
Parameter name
Use
COMMANDNAME
The name of the definition of the external command, as specified in the maintenance function (transaction SM69).
PARAMETERS
Arguments for the external command as specified by the definition in the R/3 System and by the calling program or user.
These arguments are checked for impermissible characters, such as the ; under UNIX. Problems are registered with the SECURITY_RISK exception.
EXPORTING Parameters
Parameter name
Use
STATUS
Returns the final status of the execution of the external command:
· Value O: The external command was started and ran to end successfully.
· Value E: An error occurred; the external command was not run successfully.
Tables Parameters
Parameter name
Use
EXEC_PROTOCOL
Contains the STDOUT and STDERR output of the external command and any output from the target host system.
Exceptions
Exception name
Meaning
X_ERROR
Reserved for future use.
NO_PERMISSION
The AUTHORITY-CHECK of the users authorization for the authorization object S_LOG_COM failed. The user is not authorized to carry out the command named with the specified arguments on the target system.
COMMAND_NOT_FOUND
Command name, as identified by COMMANDNAME and OPERATINGSYSTEM, has not been defined in the maintenance function (transaction SM69).
PARAMETERS_TOO_LONG
The combined argument string (ADDITIONAL_PARAMETERS and the DEFINED_PARAMETERS, as returned in ALL_PARAMETERS) exceeds the limit of 128 characters in length.
SECURITY_RISK
Either:
· The command contains impermissible characters. These are characters with potentially dangerous properties, such as ; under UNIX.
· The command definition specifies that an extra-check function module be run. This function module has rejected execution of the command.
WRONG_CHECK_CALL_
INTERFACE
The command definition specifies that an extra-check function module is to be run. Either this function module is missing, or the interface defined for this function module does not match that of the standard R/3 function module SXPG_DUMMY_COMMAND_CHECK. For more information, please see SXPG_DUMMY_COMMAND_CHECK: Interface for Extra-Check Function Modules.
TOO_MANY_PARAMETERS
The command definition specifies that user-specified arguments for the external command are not allowed. However, an additional string of command arguments was specified.
PARAMETER_EXPECTED
The command definition includes the placeholder character ?, which signifies that additional user-defined arguments are required. However, no additional arguments string was supplied.
PROGRAM_START_ERROR
An error occurred while starting the external command. The R/3 system field SY-MSGV1 contains additional information on the problem.
PROGRAM_TERMINATION_
ERROR
An error occurred while trying to obtain the return code of the external program. The R/3 system field SY-MSGV1 contains additional information on the problem.
ILLEGAL_COMMAND
The external command definition was modified "illegally". That is, the command was not modified by means of the maintenance function (transaction SM69).
The modified command is registered in the system log in its substituted form. The message is registered under the system log ID "LC".
OTHERS
Catch any new exceptions added to this function module.
Hope this will be useful.
Sandro Lombardo

Call external application through Abap WD application

Hello All,
We are trying to call an external application using ABAP. The details are as below
1) SAP server on AIX OS
2) External Apps server: Windows OS
The external apps takes a file located on windows as input and generates a file on windows as output. The external appls is installed on the windows OS.
We are unable to trigger the VC apps from ABAP.( AIX OS).
Appreciate if you can guide and give some examples. Please note that the OS are different.
Questions:
1) How to access windows file system to execute external appls from ABAP ( AIX)
2) Would a RFC be required to be made between ABAP and the windows server where external appls is hosted
3) Any sample code/links is really help ful
We were able to get it working when the applications was hosted on local file system ( desktop) . Two problems are getting the appls executed on remote and different OS accessing windows file system through unix ( AL11 should help here i guess)
Regards
PN

Hi Lekha
I want to start a *.bsp page in a new external window and POST Parameters to this *.bsp page.
So it is not actually showing a bsp in a ABAP WD.
Kind regards
Paul
PS: create_external_window is alway a GET Method and I do not want to show Parameters in the URL.

Calling external programs from within a Tomcat application

I've got a fairly complex existing Tomcat application (which is packaged and built as a .war file) which I'm trying to edit so that it calls a Perl script part way through the processing, which will generate an XML file used later on. I think I've worked out how to call external scripts from within Java, but at the moment when I try and access the application via Tomcat the application either hangs or bails out (I don't know which, as the log files unhelpfully don't give any error messages).
The code which is causing the problem looks like this:
System.err.println("Calling runtime...");
Runtime runtime = Runtime.getRuntime();
System.err.println("Executing process...");
Process process = runtime.exec("/path/to/ysearch.pl 'News' '\"search query\"' 'file");
System.err.println("Waiting for process...");
int exitVal = process.waitFor();
System.out.println("Exited with error code: " + exitVal);The code gets as far as "Executing process..", beyond that there is nothing in the log file so I presume the runtime.exec() call is where the problem is. I'm not interested in reading the output from the script (there shouldn't be any), so that's not an issue, and the permissions on it allow anyone to read or execute ysearch.pl so I don't think there's a problem in that area.
Does anyone have any suggestions which I could try to get this to work? I've only been using Tomcat for a week (I'm picking up on someone else's code) so I might have made a beginner's mistake. I'm using Tomcat 5 on Fedora Core 7, and Java 1.5.0_01 (I can't easily change any of those).

I'm not sure, but I thing that overhead caused by calling du cannot be big enough to matter even on older machines.
But, when calling du from Perl script you are also invoking shell, and this can be a little bit more 'heavy'.

To send external email from ABAP

How to send external email from ABAP Program and what are the settings to be done for the same ?

Please check..
Sending External email through SAP
What is the FM for sending the external email through SAP by attaching layout set to it?
These are the FM for sending external email :-
SO_DOCUMENT_SEND_API1
SAPoffice: Send new document with attachments via RFC
SO_NEW_DOCUMENT_ATT_SEND_API1
(In 4.6C only, You can go to SE37 and click the documentation on how to use it. A sample program is provided there.)
SAPoffice: Send new document with attachments via RFC
Note : If you are using FM SO_NEW_DOCUMENT_ATT_SEND_API1 then Export Parameter DOCUMENT_DATA-OBJ_DESCR contains the Subject.
SO_NEW_DOCUMENT_SEND_API1
SAPoffice: Send new document
How to send a report to an external mail-id?
Try this sample code :-
REPORT ZREPORT_TO_EMAIL NO STANDARD PAGE HEADING LINE-SIZE 200.
DATA : BEGIN OF ITAB OCCURS 0,
PERNR LIKE PA0001-PERNR,
ENAME LIKE PA0001-ENAME,
END OF ITAB.
DATA: message_content LIKE soli OCCURS 10 WITH HEADER LINE,
receiver_list LIKE soos1 OCCURS 5 WITH HEADER LINE,
packing_list LIKE soxpl OCCURS 2 WITH HEADER LINE,
listobject LIKE abaplist OCCURS 10,
compressed_attachment LIKE soli OCCURS 100 WITH HEADER LINE,
w_object_hd_change LIKE sood1,
compressed_size LIKE sy-index.
START-OF-SELECTION.
SELECT PERNR ENAME
INTO CORRESPONDING FIELDS OF TABLE ITAB
FROM PA0001
WHERE PERNR < 50.
LOOP AT ITAB.
WRITE :/02 SY-VLINE , ITAB-PERNR, 15 SY-VLINE , ITAB-ENAME, 50
SY-VLINE.
ENDLOOP.
Receivers
receiver_list-recextnam = '[email protected]'. "-->
EMAIL ADDRESS
RECEIVER_list-RECESC = 'E'. "<-
RECEIVER_list-SNDART = 'INT'."<-
RECEIVER_list-SNDPRI = '1'."<-
APPEND receiver_list.
General data
w_object_hd_change-objla = sy-langu.
w_object_hd_change-objnam = 'Object name'.
w_object_hd_change-objsns = 'P'.
Mail subject
w_object_hd_change-objdes = 'Message subject'.
Mail body
APPEND 'Message content' TO message_content.
Attachment
CALL FUNCTION 'SAVE_LIST'
EXPORTING
list_index = '0'
TABLES
listobject = listobject.
CALL FUNCTION 'TABLE_COMPRESS'
IMPORTING
compressed_size = compressed_size
TABLES
in = listobject
out = compressed_attachment.
DESCRIBE TABLE compressed_attachment.
CLEAR packing_list.
packing_list-transf_bin = 'X'.
packing_list-head_start = 0.
packing_list-head_num = 0.
packing_list-body_start = 1.
packing_list-body_num = sy-tfill.
packing_list-objtp = 'ALI'.
packing_list-objnam = 'Object name'.
packing_list-objdes = 'Attachment description'.
packing_list-objlen = compressed_size.
APPEND packing_list.
CALL FUNCTION 'SO_OBJECT_SEND'
EXPORTING
object_hd_change = w_object_hd_change
object_type = 'RAW'
owner = sy-uname
TABLES
objcont = message_content
receivers = receiver_list
packing_list = packing_list
att_cont = compressed_attachment.

Calling external Java from ABAP using JCo?

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