Unpacking COMP-3 digit using Record Editor/Jrecord

问题

I have created layout based on cobol copybook.

Layout snap-shot:

I tried to load data also selecting same layout, it gives me wrong result for some columns. I try using all binary numeric type.

1. CLASS-ORDER-EDGE
2. DIV-NO-EDG
3. OFFICE-NO-EDG
4. REG-AREA-NO-EDG
5. CITY-NO-EDG
6. COUNTY-NO-EDG
7. BILS-COUNT-EDG
8. REV-AMOUNT-EDG
9. USAGE-QTY-EDG
10. GAS-CCF-EDG

result snapshot

Input file can be find below attachment

enter link description here

or

https://drive.google.com/open?id=0B-whK3DXBRIGa0I0aE5SUHdMTDg

Expected output:

Related thread Unpacking COMP-3 digit using Java

回答1:

First Problem you have done an EBCDIC --> ascii conversion on the file !!!!

The EBCDIC --> ascii conversion will also try and convert binary fields as well as text.

For example:

Comp-3 value   hex     hex after Ascii conversion

 400          x'400c'       x'200c'       x'40' is the ebcdic space character
                                          it gets converted to the ascii
                                          space character x'20'

---

You need to do binary transfer, keeping the file as ebcdic:

1. Check the file on the Mainframe if it has a RECFM=FB you can do a transfer
2. If the file is RECFM=VB make sure you transfer the RDW (Record Descriptor word) (or copy the VB file to a FB file on the mainframe).

---

Other points:

You will have to update RecordEditor/JRecord

• The font will need to be ebcdic (cp037 for US ebcdic; for other lookup)
• The FileStructure/FileOrganisation needs to change (Fixed length / VB)

Finally

• BILS-Count-EDG is either 9 characters long or starts in column 85 (and is 8 bytes long).
• You should include Xml in as text not copy a picture in.
• In the RecordEditor if you Right click >>> Edit Record; it will show the fields as Value, Raw Text and Hex. That is useful for seeing what is going on
• You do not seem to accept many answers; it is not relevant whether the answer solves your problem; it is whether the answer is correct answer for the question.

来源：https://stackoverflow.com/questions/45637188/unpacking-comp-3-digit-using-record-editor-jrecord