How do I pack an ISO 8583 message?

By Wayan in jPOS Last modified: June 5, 2023 30 Comments

The code snippet below show you how to pack an ISO 8583 message.

package org.kodejava.jpos;

import org.jpos.iso.ISOException;
import org.jpos.iso.ISOMsg;
import org.jpos.iso.packager.GenericPackager;

import java.io.InputStream;

public class PackISOMessage {
    public static void main(String[] args) {
        PackISOMessage iso = new PackISOMessage();
        try {
            String message = iso.buildISOMessage();
            System.out.printf("Message = %s", message);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private String buildISOMessage() throws Exception {
        try {
            // Load package from resources directory.
            InputStream is = getClass().getResourceAsStream("/fields.xml");
            GenericPackager packager = new GenericPackager(is);

            ISOMsg isoMsg = new ISOMsg();
            isoMsg.setPackager(packager);
            isoMsg.setMTI("0200");

            isoMsg.set(3, "000010");
            isoMsg.set(4, "1500");
            isoMsg.set(7, "1206041200");
            isoMsg.set(11, "000001");
            isoMsg.set(41, "12340001");
            isoMsg.set(49, "840");
            printISOMessage(isoMsg);

            byte[] result = isoMsg.pack();
            return new String(result);
        } catch (ISOException e) {
            throw new Exception(e);
        }
    }

    private void printISOMessage(ISOMsg isoMsg) {
        try {
            System.out.printf("MTI = %s%n", isoMsg.getMTI());
            for (int i = 1; i <= isoMsg.getMaxField(); i++) {
                if (isoMsg.hasField(i)) {
                    System.out.printf("Field (%s) = %s%n", i, isoMsg.getString(i));
                }
            }
        } catch (ISOException e) {
            e.printStackTrace();
        }
    }
}

When you run the program you’ll get the following output:

MTI = 0200
Field (3) = 000010
Field (4) = 1500
Field (7) = 1206041200
Field (11) = 000001
Field (41) = 12340001
Field (49) = 840
Message = 02003220000000808000000010000000001500120604120000000112340001840

The xml packager (fields.xml) can be downloaded from the following link: fields.xml.

Maven Dependency

<dependency>
    <groupId>org.jpos</groupId>
    <artifactId>jpos</artifactId>
    <version>2.1.8</version>
</dependency>

Author
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Wayan

Founder at Kode Java

A programmer, runner and recreational diver, lives on the island of Bali, Indonesia. Programming in Java, Spring Framework, Hibernate / JPA, MySQL. To support me working on this project, buy me a cup of coffee, every little bit helps. Thank you.

30 Comments

I get error:

at com.mycompany.mavenproject2.PackISOMessage.buildISOMessage(PackISOMessage.java:46)
    at com.mycompany.mavenproject2.PackISOMessage.main(PackISOMessage.java:19)

Hi Tony,

Can you post a complete error stack trace?

java.lang.Exception: org.jpos.iso.ISOException: java.net.MalformedURLException (java.net.MalformedURLException)
    at com.mycompany.mavenproject2.PackISOMessage.buildISOMessage(PackISOMessage.java:46)
    at com.mycompany.mavenproject2.PackISOMessage.main(PackISOMessage.java:19)
Caused by: org.jpos.iso.ISOException: java.net.MalformedURLException (java.net.MalformedURLException)

Wayan

March 17, 2017 at 9:57 am
Hi Tony,

I think the error because it cannot find the fields.xml file. I am using Maven, in this case I place the fields.xml file inside the resources directory (src/main/resources/fields.xml).

Instead of loading the packager file as a resource you can also do something like this:
```
String filename = "D:/jpos/fields.xml";
GenericPackager packager = new GenericPackager(filename);
```
Reply

Tony Seng

March 17, 2017 at 10:20 am
I created a project named mavenproject2 and placed the fields.xml in cfg/packager but the error still there.
```
InputStream is = getClass().getResourceAsStream("mavenproject2/cfg/packager/fields.xml");
GenericPackager packager = new GenericPackager(is);
```
Reply

Error while compiling sample ISO Message Program:

Exception in thread "main" java.lang.UnsupportedClassVersionError: org/jpos/iso/ISOException : Unsupported major.minor version 52.0
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
    at java.lang.Class.getDeclaredMethods0(Native Method)
    at java.lang.Class.privateGetDeclaredMethods(Class.java:2615)
    at java.lang.Class.getMethod0(Class.java:2856)
    at java.lang.Class.getMethod(Class.java:1668)
    at sun.launcher.LauncherHelper.getMainMethod(LauncherHelper.java:494)
    at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:486)

Wayan

May 20, 2019 at 2:48 pm

Hi Vijaykumar, make sure you are compiling the code using JDK 8.

Reply

sonali

July 24, 2019 at 3:16 pm

Hi,

We are getting response but that response we pass to the parseISoData using “iso87ascii.xml” so we are are not getting proper field data 62 and 63 can please help us.

Reply
- Wayan
  
  July 24, 2019 at 4:28 pm
  
  Hi Sonali, can you show any code that you are working on?
  
  Reply
  - sonali
    
    July 24, 2019 at 4:33 pm
    public void parseISoData(String data) throws ISOException, IOException { CustomXmlReader packager; InputStream inputstream = getApplicationContext().getAssets().open("iso87ascii.xml"); packager = new CustomXmlReader(inputstream); ISOMsg isoMsg = new ISOMsg(); isoMsg.setPackager(packager); isoMsg.unpack(data.getBytes()); // print the DE list logISOMsg(isoMsg); }
- Wayan
  
  July 24, 2019 at 4:38 pm
  
  Hi Sonali, can you also provide the string data to be unpacked?
  
  Reply
  - sonali
    
    July 24, 2019 at 4:57 pm
    
    00b2600000004108102038010002c0000692000014927514512207220041303038303030303036382020202020202020202020202020200085894f96d55d7421d9000000000000000054455354494e47205445414d205448414e4520202020205448414e452020202020202020204d48202020202020202020202020202020202020202020202020202020202020003600344b50894f96d55d7421d9ef349aa6cc0fe6173f03e4ce8dcaa3a9d62e12b21ff3c32d
- Wayan
  
  July 24, 2019 at 8:05 pm
  
  Hi Sonali,
  
  I found that your message doesn’t contain the MTI information and also are you correctly calculate the message bitmap and supply the content for data element 62 and 63 in your message?
  
  Reply
sonali

July 29, 2019 at 3:28 pm

MTI 0810, if we are parsing the data in parseIsoData method using (“iso87ascii.xml”); but we are not getting the proper data element 62 and 63.

Reply
- Wayan
  
  July 29, 2019 at 3:35 pm
  
  Hi Sonali, can you show me the bit mapping of your message?
  
  Reply
  - sonali
    
    July 29, 2019 at 4:45 pm
    
    00b2 length
    6000000041 header
    0810 MTI
    2038010002c00006 Bitmap
    920000 processing
    683279 stan
    1129030722 date and time
    0041 nii
    3030 respose code
    3830303030303638 TID
    202020202020202020202020202020 MID
    0085
    9bcb28c2e08d11ee000000000000000054455354494e47205445414d205448414e4520202020205448414e452020202020202020204d48202020202020202020202020202020202020202020202020202020202020
    003600344b509bcb28c2e08d11eebbe04de6eb78a79c48bbb4f43f0f759171846d85cd4d584d00000000000000000000000000000000000000000000000000000000000000000000000000000000
- Wayan
  
  July 30, 2019 at 9:46 am
  Hi Sonali,
  
  I am processing the following message:
```
08102038010002c00006920000683279112903072200413030383030303030363820202020202020202020202020202000859bcb28c2e08d11ee000000000000000054455354494e47205445414d205448414e4520202020205448414e452020202020202020204d48202020202020202020202020202020202020202020202020202020202020003600344b509bcb28c2e08d11eebbe04de6eb78a79c48bbb4f43f0f759171846d85cd4d584d00000000000000000000000000000000000000000000000000000000000000000000000000000000
```
  I remove the length (00b2) and the header (6000000041). And here is the result I got:
```
MTI = 0810
Field (3) = 920000
Field (11) = 683279
Field (12) = 112903
Field (13) = 0722
Field (24) = 004
Field (39) = 13
Field (41) = 03038303
Field (42) = 030303036382020
Field (62) = 0202020202020202020202000859bcb28c2e08d11ee000000000000000054455354494e47205445414d205448414e4520202020205448414e452020202020202020204d4820202020202020202020202020202020202020202020202020202020202000360
Field (63) = 4b509bcb28c2e08d11eebbe04de6eb78a7
```
  Reply
- Wayan
  
  July 30, 2019 at 11:06 am
  
  Hi, Sonali, based on the last example of message break down you have modified the iso87ascii.xml right? And for the data element 62 and 63 make sure you add the correct length of the data element contents. Field 62 and 63 type is IFA_LLLCHAR it means that the message if prefixed with three digits length. For example 00859bcb28c, 008 is the length and 59bcb28c is the data.
  
  Reply
Kalaivanan

January 4, 2020 at 7:11 pm

Hi, how to add ISO header in ISO message?

Reply
Juber

May 26, 2020 at 7:55 pm

How to make a field mandatory from xml?

Reply
Fatima

March 31, 2021 at 1:20 am

Muchas gracias me ha sido de gran utilidad!

Reply
Rohini Rangaswamy

June 14, 2021 at 6:02 pm

Hi , I am using this parser for long. It works fine when the bitmap is readable. But when the bitmap comes in non-readable format in ASCII, I am unable to get the bitmap bytes and unpack the iso msg . can u help

Reply
- Wayan
  
  June 15, 2021 at 9:59 am
  
  Hi Rohini.
  
  Can you share the bitmap / message example?
  
  Reply
Chetan

April 14, 2022 at 9:56 am

Hi Wayan,

Can you please help on how to add the SSL certificated if any host requires, how can we implement this in above code?

Reply
mech samren

July 29, 2022 at 10:56 pm

How to add header 2 bytes in ISO8583?

Reply

Hi Wayan. Can you please help me resolve below error. I am using the same code and fields.xml file.

java.lang.Exception: org.jpos.iso.ISOException: org.xml.sax.SAXParseException; systemId: file:///c:/Users/apochir/Desktop/Logs/fields.xml; lineNumber: 3; columnNumber: 13; Document is invalid: no grammar found. (org.xml.sax.SAXParseException; systemId: file:///c:/Users/apochir/Desktop/Logs/fields.xml; lineNumber: 3; columnNumber: 13; Document is invalid: no grammar found.)
    at com.test.PackISOMessage.buildISOMessage(PackISOMessage.java:58)
    at com.test.PackISOMessage.main(PackISOMessage.java:26)

Hi Wayan, I am facing one issues I am doing socket connection with one service also ISO8583 message but when I send the payload they can’t see. Means it’s not moving there. I need your help, because I am m new with this.

Hi Soumya,

Do you have any error during this process? any exception message for example. Maybe you can show me the code on how you do it?

public void sendKeepAliveMessage() throws Exception {
    String isoMessage = convertJsonToISOForLogin(login800X);
    log.info(login800X);
    log.info(isoMessage);
    String response = sendRequestSocket(host, port, isoMessage);
    System.out.println(“After Processed—“);
    log.info(response);
}

private String convertJsonToISOForLogin(String login800X) throws Exception { 
    try { 
        InputStream is = SingletonSocketManager.class.getResourceAsStream("/fields.xml"); 
        GenericPackager packager = new GenericPackager(is); 
        ISOMsg isoMsg = new ISOMsg(); 
        isoMsg.setPackager(packager); 
        isoMsg.setMTI(messageType); 
        isoMsg.setHeader(isoHeader.getBytes()); 
        isoMsg.set(7, transmissionDateTime); 
        isoMsg.set(11, SystemTraceNumber); 
        isoMsg.set(70, networkManagement); 
        printingIsoMessage(isoMsg); 
        byte[] result = isoMsg.pack(); 
        return new String(result); 
    } catch (ISOException e) { 
        log.error("Error converting JSON to ISO for login: {}", e.getMessage(), e); 
        throw new Exception(e); 
    } 
}

When I send dynamics data to them they are not seeing my message.

Hi Wayan, Actually I’m facing issues, when I try to unpack my ISO8583 message. I’m giving the error and response and code for your reference please help me to solve this.

byte :-[48, 48, 55, 48, 73, 83, 79, 48, 48, 54, 48, 48, 48, 53, 48, 52, 48, 56, 49, 48, 56, 50, 50, 48, 48, 48, 48, 48, 48, 50, 48, 48, 48, 48, 48, 48, 48, 52, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 56, 48, 50, 48, 57, 50, 49, 51, 51, 48, 48, 48, 48, 48, 49, 48, 48, 51, 48, 49, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +3,996 more]

And normal String is:

0070ISO006000504081082200000020000000400000000000000080209213300000100301

And the issues is “org.jpos.iso.IFA_NUMERIC: Problem unpacking field 7 (java.lang.RuntimeException: Required 10 but just got 2 bytes) unpacking field=7, consumed=72”

And my XML file is:

xml

30 Comments

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