[英]Unpacking jPOS ISO8583
I am having this error when I am generating transaction with Magnetic stripe card.使用磁条卡生成交易时出现此错误。 Could you suggest what is the problem here?
你能建议这里有什么问题吗?
<receive>
<iso-exception>
org.jpos.iso.IFB_LLLCHAR: Problem unpacking field 54 (java.lang.ArrayIndexOutOfBoundsException: 86) unpacking field=54, consumed=86
org.jpos.iso.ISOException: org.jpos.iso.IFB_LLLCHAR: Problem unpacking field 54 (java.lang.ArrayIndexOutOfBoundsException: 86) unpacking field=54, consumed=86
at org.jpos.iso.ISOBasePackager.unpack(ISOBasePackager.java:340)
at org.jpos.iso.ISOMsg.unpack(ISOMsg.java:468)
at org.jpos.iso.BaseChannel.unpack(BaseChannel.java:965)
at org.jpos.iso.BaseChannel.receive(BaseChannel.java:735)
at org.jpos.iso.ISOServer$Session.run(ISOServer.java:344)
at org.jpos.util.ThreadPool$PooledThread.run(ThreadPool.java:76)
</iso-exception>
--- header ---
0000 00 00 00 00 00 .....
--- data ---
0000 02 00 70 38 04 80 20 80 3F 04 16 94 96 10 03 32 ..p8.. .?......2
0010 13 38 00 00 00 00 00 00 01 88 00 00 00 00 30 11 ..8............0.
0020 11 27 11 28 00 21 00 37 94 96 10 03 32 13 38 00 .'.(.!.7....2.8.
0030 D2 00 89 EC 49 D2 C2 B5 6B 2A 00 39 35 30 30 30 ....I...k*.95000
0040 30 32 30 34 39 36 F0 D2 EB A5 2B 2F AE 2E 00 06 020496....+/....
0050 30 30 30 30 35 30 000050
We have not been fully aware of BITMAP structure at first field.我们还没有完全了解第一个字段的 BITMAP 结构。 There are 64 bits with and if there are not 64 ie 62 bits with starting 1, that means 1st and 2nd fields are not presented.
有 64 位,如果没有 64 位,即 62 位以 1 开头,则表示不显示第 1 和第 2 个字段。 Bitmap never starts with 0 so as long as it starts with 1 we need to add incomplete sequence prior to that with zeros.
位图从不以 0 开头,因此只要它以 1 开头,我们就需要在其之前添加不完整的序列,并以零开头。
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