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ABAP源代码的加密与解密

2011-07-30 17:41:01| 分类： ABAP基础知识 | 标签： |举报 |字号大中小订阅

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report  z_encode_decode_program. "解密后中文易出现乱码..

parameters: program(100).
parameters: p_encode radiobutton group g1 modif id g1,
            p_decode radiobutton group g1 modif id g1.

if p_encode = 'X'.
  perform frm_encode_program.
elseif p_decode = 'X'.
  perform frm_decode_program.
endif.

*----------------------- Encode ----------------------------------------
form frm_encode_program.
  data:begin of itab occurs 0,
        line(72).
  data:end of itab.
  data g_in type string.
  data g_out type xstring.
  data g_c type string.
  data g_line type i.
  data g_x type i.

  read report program into itab.
  loop at itab.
    g_line = strlen( itab-line ).
    clear g_x.
    do g_line times.
      g_c = itab-line+g_x(1).
      if not g_c is initial.
        call function 'HR_KR_STRING_TO_XSTRING'
          exporting
            codepage_to      = '8500'
            unicode_string   = g_c
            out_len          = 0
          importing
            xstring_stream   = g_out
          exceptions
            invalid_codepage = 1
            invalid_string   = 2
            others           = 3.
        g_out = g_out - 1.
        call function 'HR_KR_XSTRING_TO_STRING'
          exporting
            from_codepage = '8500'
            in_xstring    = g_out
            out_len       = 0
          importing
            out_string    = g_in.
        itab-line+g_x(1) = g_in.
      endif.
      g_x = g_x + 1.
    enddo.
    modify itab.
    write itab-line.
  endloop.
  insert report program from itab.
endform.                    "frm_encode_program

*----------------------- Decode ----------------------------------------
form frm_decode_program.
  data:begin of itab occurs 0,
        line(72).
  data:end of itab.
  data g_in type string.
  data g_out type xstring.
  data g_c type string.
  data g_line type i.
  data g_x type i.
  read report program into itab.
  loop at itab.
    g_line = strlen( itab-line ).
    clear g_x.
    do g_line times.
      g_c = itab-line+g_x(1).
      if not g_c is initial.
        call function 'HR_KR_STRING_TO_XSTRING'
          exporting
            codepage_to      = '8500'
            unicode_string   = g_c
            out_len          = 0
          importing
            xstring_stream   = g_out
          exceptions
            invalid_codepage = 1
            invalid_string   = 2
            others           = 3.
        g_out = g_out + 1.
        call function 'HR_KR_XSTRING_TO_STRING'
          exporting
            from_codepage = '8500'
            in_xstring    = g_out
            out_len       = 0
          importing
            out_string    = g_in.
        itab-line+g_x(1) = g_in.
      endif.
      g_x = g_x + 1.
    enddo.
    modify itab.
    write itab-line.
  endloop.
  insert report program from itab.
endform.                    "frm_encode_program

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