字符串的 Base64 加密和解密

base64加密：

FORM encode_base64  USING    p_business  “字符串string

                    CHANGING p_base64.

  DATA l_xstring TYPE xstring.

  CHECK p_business IS NOT INITIAL.

  CALL METHOD cl_http_utility=>encode_utf8

    EXPORTING

      unencoded = p_business

    RECEIVING

      encoded   = l_xstring.

  CALL METHOD cl_http_utility=>encode_x_base64

    EXPORTING

      unencoded = l_xstring

    RECEIVING

      encoded   = p_base64.

ENDFORM. 

base64解密：

FORM decoding_base64 CHANGING p_business TYPE string.

  DATA l_xstring TYPE xstring.

  CALL METHOD cl_http_utility=>if_http_utility~decode_x_base64

    EXPORTING

      encoded = p_business

    RECEIVING

      decoded = l_xstring.

  CLEAR p_business.

  CALL METHOD cl_http_utility=>if_http_utility~decode_utf8

    EXPORTING

      encoded   = l_xstring

    RECEIVING

      unencoded = p_business.

ENDFORM.