ABAP--编写应用服务器执行外部命令的程序示例
1、相关Package
SBTC
2、相关T-CODE
SM69:
SM49 :
3、SXPG_CALL_SYSTEM函数说明
IMPORTING
COMMANDNAME = <Name of command to run> “ Default '*'
ADDITIONAL_PARAMETERS =<Argument string> “ Default <space>
EXPORTING
STATUS =<Exit status of command>
TABLES
EXEC_PROTOCOL = <Log> “ In structure BTCXPM. Can
“ contain STDOUT, STDERR
EXCEPTIONS
NO_PERMISSION “ Command rejected by user exit auth.
“ check
COMMAND_NOT_FOUND “ Command not defined in SAP database
PARAMETERS_TOO_LONG “ Complete parameter string exceeds
“ 128 characters
SECURITY_RISK “ Security check failed
WRONG_CHECK_CALL_INTERFACE “ Problem with function
“ module for additional
“ security check
PROGRAM_START_ERROR “ Error while starting program
PROGRAM_TERMINATION_ERROR “ Error while requesting final
“ status of program
X_ERROR “ Reserved
PARAMETER_EXPECTED “ Required parameter not specified
TOO_MANY_PARAMETERS “ User arguments not allowed by
“ supplied in call
ILLEGAL_COMMAND “ Command not legitimately defined
OTHERS
Parameter name
|
Use
|
COMMANDNAME
|
The name of the definition of the external command, as specified in the maintenance function (transaction SM69).
|
PARAMETERS
|
Arguments for the external command as specified by the definition in the SAP system and by the calling program or user.
These arguments are checked for impermissible characters, such as the ; under UNIX. Problems are registered with the SECURITY_RISK exception.
|
Parameter name
|
Use
|
STATUS
|
Returns the final status of the execution of the external command:
· Value ‘O’: The external command was started and ran to end successfully.
· Value ‘E’: An error occurred; the external command was not run successfully.
|
Parameter name
|
Use
|
EXEC_PROTOCOL
|
Contains the STDOUT and STDERR output of the external command and any output from the target host system.
|
Exception name
|
Meaning
|
X_ERROR
|
Reserved for future use.
|
NO_PERMISSION
|
The AUTHORITY-CHECK of the user’s authorization for the authorization object S_LOG_COM failed. The user is not authorized to carry out the command named with the specified arguments on the target system.
|
COMMAND_NOT_FOUND
|
Command name, as identified by COMMANDNAME and OPERATINGSYSTEM, has not been defined in the maintenance function (transaction SM69).
|
PARAMETERS_TOO_LONG
|
The combined argument string (ADDITIONAL_PARAMETERS and the DEFINED_PARAMETERS, as returned in ALL_PARAMETERS) exceeds the limit of 128 characters in length.
|
SECURITY_RISK
|
Either:
· The command contains impermissible characters. These are characters with potentially dangerous properties, such as ; under UNIX.
· The command definition specifies that an extra-check function module be run. This function module has rejected execution of the command.
|
WRONG_CHECK_CALL_
INTERFACE |
The command definition specifies that an extra-check function module is to be run. Either this function module is missing, or the interface defined for this function module does not match that of the standard SAP function module SXPG_DUMMY_COMMAND_CHECK. For more information, please see SXPG_DUMMY_COMMAND_CHECK: Interface for Extra-Check Function Modules.
|
TOO_MANY_PARAMETERS
|
The command definition specifies that user-specified arguments for the external command are not allowed. However, an additional string of command arguments was specified.
|
PARAMETER_EXPECTED
|
The command definition includes the placeholder character ?, which signifies that additional user-defined arguments are required. However, no additional arguments string was supplied.
|
PROGRAM_START_ERROR
|
An error occurred while starting the external command. The SAP system field SY-MSGV1 contains additional information on the problem.
|
PROGRAM_TERMINATION_
ERROR |
An error occurred while trying to obtain the return code of the external program. The SAP system field SY-MSGV1 contains additional information on the problem.
|
ILLEGAL_COMMAND
|
The external command definition was modified “illegally”. That is, the command was not modified by means of the maintenance function (transaction SM69).
The modified command is registered in the system log in its substituted form. The message is registered under the system log ID “LC”.
|
OTHERS
|
Catch any new exceptions added to this function module.
|
REPORT ZABAPFTP.
data : t_btcxpm like btcxpm occurs 0,
p_addparam like sxpgcolist-parameters,
rep_date like sy-datum,
t_date like SXPGCOLIST-PARAMETERS.
rep_date = sy-datum - 1.
t_date = rep_date.
*p_addparam = '/sap_production/usr/sap/trans/data/zabapftp.sh'.
refresh t_btcxpm. clear t_btcxpm.
call function 'SXPG_CALL_SYSTEM'
EXPORTING
commandname = 'ZABAPFTP'
additional_parameters = t_date
TABLES
exec_protocol = t_btcxpm
EXCEPTIONS
no_permission = 1
command_not_found = 2
parameters_too_long = 3
security_risk = 4
wrong_check_call_interface = 5
program_start_error = 6
program_termination_error = 7
x_error = 8
parameter_expected = 9
too_many_parameters = 10
illegal_command = 11
others = 12.
if sy-subrc ne 0.
write:/ 'Error in ZABAPFTP ', sy-subrc.
endif.
5、使用Open Dataset的FILTER执行系统命令
下面为UNIX环境下的文件压缩和解压
DATA DSN(20) VALUE '/usr/test.Z'.
OPEN DATASET DSN FOR OUTPUT FILTER 'compress'.
OPEN DATASET DSN FOR INPUT FILTER 'uncompress'.