Question

我有一个SSIS作业在一个异步执行的批处理文件中运行。

我需要知道何时完成SSIS作业输出一堆PDF和XLS文件。

这些文件出现在两个目录中，PDF首先是XLS。

我选择编写第二个批处理文件，在SSIS作业退出后会等待一段时间，然后检查目录中写的最后一个文件是否存在3分钟，观察后是一个充足的间隔为工作写一个文件。

问题是：如果内部循环迭代多次，外部循环永远不会运行，这似乎表明第二次MYPATH被声明，n的值是foobarred，但是这不可能是真的，因为脚本返回1，而不是在检查Arr [badval]时丢弃。

@ECHO OFF

REM SSIS process is asyncronous, and executes in background. Problematic for
REM DAG, which relies on exit code to understand process.
REM Check for "last file written" in output directories every N seconds.
REM It's a good bet we are done when they match.

@setlocal enabledelayedexpansion

REM "sleep" wait for non-existent command to complete
waitfor ragnarok /t 180>NUL 2>&1

set Arr[0]=E:\pdf_output
set Arr[1]=E:\xls_output

for /l %%n in (0,1,2) do (

    if defined Arr[%%n] (
        REM set value for path within loop or scope will bite you
        set MYPATH=!Arr[%%n]!
        echo Checking file ages in !MYPATH!.
    ) else (
        echo Done
        EXIT /B 0
    )

    :while1
        REM don't put a blank line here, it throws a syntax error
        FOR /F "delims=|" %%I IN ('DIR !MYPATH! /B /O:D') DO SET FILE1=%%I

        REM "sleep" use ping for delay, since waitfor will break loop
        arp -s 192.168.1.254 >nul
        ipconfig /flushdns >nul
        ping localhost -n 180 >nul

        FOR /F "delims=|" %%I IN ('DIR !MYPATH! /B /O:D') DO SET FILE2=%%I

        if NOT "!FILE1!" == "!FILE2!" (
            goto :while1
        )
)
endlocal
REM Something is wrong, return 1 to stop DAG and invite inspection.
exit /B 1

Answer 1

像@aschipfl建议的那样将while循环打成子程序似乎已经成功了：

@ECHO OFF

REM SSIS process is asyncronous, and executes in background. Problematic for
REM DAG, which relies on exit code to understand process.
REM Check for "last file written" in output directories every N seconds.
REM It's a good bet we are done when they match.

@setlocal enabledelayedexpansion

REM "sleep" wait for non-existent command to complete
waitfor ragnarok /t 120>NUL 2>&1

set Arr[0]=E:\pdf_output
set Arr[1]=E:\xls_output

for /l %%n in (0,1,2) do (

    if defined Arr[%%n] (
        REM set value for path within loop or scope will bite you
        set MYPATH=!Arr[%%n]!
        echo Checking file ages in !MYPATH!.
        CALL :checkfiles
    ) else (
        echo Done
        goto :NormalExit
    )
)

:checkfiles
    :while1
        REM don't put a blank line here, it throws a syntax error
        FOR /F "delims=|" %%I IN ('DIR !MYPATH! /B /O:D') DO SET FILE1=%%I

        REM "sleep" use ping for delay, since waitfor will break loop
        arp -s 192.168.1.254 >nul
        ipconfig /flushdns >nul
        ping localhost -n 120 >nul

        FOR /F "delims=|" %%I IN ('DIR !MYPATH! /B /O:D') DO SET FILE2=%%I

        if NOT "!FILE1!" == "!FILE2!" (
            goto :while1
        )
endlocal

:NormalExit
    exit /B 0

REM Something is wrong, return 1 to stop DAG and invite inspection.
exit /B 1

具有嵌套循环的批处理文件中的范围问题

1 个答案: