使用Java解压缩COMP-3数字 [英] Unpacking COMP-3 digit using Java

问题描述

我有一个包含一些COMP-3编码字段的文件.有人可以告诉我如何在下面的线程中测试此代码吗?

I have a file with some COMP-3 encoded fields. Can someone please tell me how do I test this code in below thread ?

如何使用Java解压缩COMP-3位?

我尝试过的代码是

BufferedReader br =新的BufferedReader(新的FileReader(FILENAME))){

BufferedReader br = new BufferedReader(new FileReader(FILENAME))) {

    String sCurrentLine;
    int i=0;
    String bf =null;
    while ((sCurrentLine = br.readLine()) != null) {
        i++;
        System.out.println("FROM BYTES ");
            System.out.println(unpackData(sCurrentLine.getBytes(), 5));

        for (int j = 0; j < sCurrentLine.length(); j++) {
            char c = sCurrentLine.charAt(j);
            bf =bf + (int)c;
        }

以上代码未提供正确的结果. 我尝试了单列进行转换，但未返回正确的结果. 我的输入栏

Above code is not giving correct result. I tried single column to convert but it is not returning correct result. My input column

输入文件看起来像

我尝试了JRecord传递cbl抄写本和数据文件，它生成的Java代码给出了不同的结果 产生的输出

I tried out JRecord passing cbl copybook and data file, it generate Java Code which is giving not same result Generated output

必需的输出

cbl复制书如下图

推荐答案

如果您使用数据 比较本抄写本；您将看到它不匹配.

If you compare the copybook with the data; you will see it does not match.

特别是 Class-Order-edg 被定义为图片 9(3)，但在文件中看起来是 binary .

In particular Class-Order-edg is defines as pic 9(3) but it looks like it is binary in the file.

Bils-count-edg看似要移位6个字节. 这与将Class-order-edg-> Country-no-edg字段更改为comp-3/comp一致.该字帖似乎已过期.

Bils-count-edg looks to be shifted 6 bytes. This is consistent with fields Class-order-edg --> Country-no-edg being changed to comp-3/comp. The copybook appears to be out of date.

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