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字符串加密与解密

2011-11-16 16:55:44| 分类： ABAP基础知识 | 标签： |举报 |字号大中小订阅

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report ztest1 MESSAGE-ID F4.
DATA: o_encryptor        TYPE REF TO cl_hard_wired_encryptor,
      o_cx_encrypt_error TYPE REF TO cx_encrypt_error.

DATA: v_ac_string  TYPE string VALUE 'Welcome to ABAP',
      v_ac_xstring TYPE xstring,
      v_en_string  TYPE string,
      v_en_xstring TYPE xstring,
      v_de_string  TYPE string,
      v_de_xstring TYPE string,
      v_error_msg  TYPE string.

START-OF-SELECTION.

* Create object for Encryption
  CREATE OBJECT o_encryptor.
* *&---------------------------------------------------------------------*
* Encryption - String to String
*&---------------------------------------------------------------------*
  WRITE / 'Encryption - String to String'.
  TRY.
      CALL METHOD o_encryptor->encrypt_string2string
        EXPORTING
          the_string = v_ac_string
        RECEIVING
          result     = v_en_string.
    CATCH cx_encrypt_error INTO o_cx_encrypt_error.
      CALL METHOD o_cx_encrypt_error->if_message~get_text
        RECEIVING
          result = v_error_msg.
      MESSAGE v_error_msg TYPE 'E'.
  ENDTRY.

  WRITE:/ 'Actual String: ', v_ac_string.
  WRITE:/ 'Encrypted String: ', v_en_string.
  SKIP.

*&---------------------------------------------------------------------*
* Decryption - String to String
*&---------------------------------------------------------------------*
  WRITE / 'Decryption - String to String'.
  TRY.
      CALL METHOD o_encryptor->decrypt_string2string
        EXPORTING
          the_string = v_en_string
        RECEIVING
          result     = v_de_string.
    CATCH cx_encrypt_error INTO o_cx_encrypt_error.
      CALL METHOD o_cx_encrypt_error->if_message~get_text
        RECEIVING
          result = v_error_msg.
      MESSAGE v_error_msg TYPE 'E'.
  ENDTRY.

  WRITE:/ 'Encrypted String: ', v_en_string.
  WRITE:/ 'Decrypted String: ', v_de_string.
  SKIP.

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