系统找不到指定的路径(批处理文件)-使用带空格的路径-PENTAHO Spoon.bat(pdi-ce-7.1.0.0-12) [英] The system cannot find the path specified (Batch file) - Using path with white spaces - PENTAHO spoon.bat (pdi-ce-7.1.0.0-12)

问题描述

我正在尝试从PENTAHO(pdi-ce-7.1.0.0-12)执行批处理文件"spoon.bat"，但是出现错误.

I'm trying to execute a batch file "spoon.bat" from PENTAHO (pdi-ce-7.1.0.0-12), but there is an error.

发现错误的批处理文件的一部分:

Part of batch file where the error is found:

if "%SPOON_CONSOLE%"=="1" set PENTAHO_JAVA=C:\Program Files (x86)\Java\jre1.8.0_121\bin\java.exe
if not "%SPOON_CONSOLE%"=="1" set PENTAHO_JAVA=C:\Program Files (x86)\Java\jre1.8.0_121\bin\javaw.exe
set IS64BITJAVA=0
call "%~dp0set-pentaho-env.bat"

但是我收到下一个错误:

But I receive next below error:

The system cannot find the path specified

错误是当我尝试将找到java.exe或javaw.exe的路径分配给"PENTAHO_JAVA"时.

The error is when I'm trying to assign the path where java.exe or javaw.exe are found to "PENTAHO_JAVA".

我用双引号修改了路径，但是不起作用；而且我也修改为:

I've modified the path with double quote mark, but doesn't work; and also I've modified as:

if "%SPOON_CONSOLE%"=="1" set "PENTAHO_JAVA=C:\<Program Files (x86)>\Java\jre1.8.0_121\bin\java.exe"

有什么想法声明如何修复它吗?

Any idea to how declare it to fix it?

推荐答案

在何处引用了环境变量PENTAHO_JAVA?

Where is the environment variable PENTAHO_JAVA referenced?

必须用"%PENTAHO_JAVA%"引用，因为分配给该环境变量的字符串包含空格或&()[]{}^=;!'+,`~之类的字符.在最后一个帮助页面上的最后一个段落中的命令提示符窗口cmd /?中运行时，Windows命令解释器输出的帮助中对此进行了解释.

It must be referenced with "%PENTAHO_JAVA%" because the string assigned to this environment variable contains characters like a space or &()[]{}^=;!'+,`~. This is explained in help of Windows command interpreter output on running in a command prompt window cmd /? in last paragraph on last help page.

当然也可以使用已添加的必需双引号定义环境变量，即使用:

It is of course also possible to define the environment variable with the necessary double quotes already added, i.e. use:

if     "%SPOON_CONSOLE%"=="1" set "PENTAHO_JAVA="%ProgramFiles(x86)%\Java\jre1.8.0_121\bin\java.exe""
if not "%SPOON_CONSOLE%"=="1" set "PENTAHO_JAVA="%ProgramFiles(x86)%\Java\jre1.8.0_121\bin\javaw.exe""
set "IS64BITJAVA=0"
call "%~dp0set-pentaho-env.bat"

但是不建议这样做.最好是使用

But this is not recommended. Better would be to use

if     "%SPOON_CONSOLE%"=="1" set "PENTAHO_JAVA=%ProgramFiles(x86)%\Java\jre1.8.0_121\bin\java.exe"
if not "%SPOON_CONSOLE%"=="1" set "PENTAHO_JAVA=%ProgramFiles(x86)%\Java\jre1.8.0_121\bin\javaw.exe"
set "IS64BITJAVA=0"
call "%~dp0set-pentaho-env.bat"

和引用环境变量PENTAHO_JAVA用双引号引起来，需要在双引号中指定其值.

and reference environment variable PENTAHO_JAVA enclosed in double quotes where it is necessary to specify its value enclosed in double quotes.

示例:

@echo off
rem Get path of latest installed Java directly from Windows registry.
for /F "skip=1 tokens=1,2*" %%N in ('%SystemRoot%\System32\reg.exe QUERY "HKLM\Software\Microsoft\Windows\CurrentVersion\App Paths\javaws.exe" /v Path 2^>nul') do if /I "%%N" == "Path" set "PENTAHO_JAVA=%%P" & goto JavaPathFound

rem Path of Java not found in registry, search for 32-bit Java in the default
rem program files folders of 64-bit and 32-bit Windows and take first found.
if "%ProgramFiles(x86)%" == "" goto Windows_x86
for /R "%ProgramFiles(x86)%" %%I in (java*.exe) do set "PENTAHO_JAVA=%%~dpI" & goto JavaPathFound
:Windows_x86
for /R "%ProgramFiles%" %%I in (java*.exe) do set "PENTAHO_JAVA=%%~dpI" & goto JavaPathFound

echo Error: Java binary directory not found.
echo/
pause
goto :EOF

:ErrorJavaEXE
echo Error: File %PENTAHO_JAVA% not found.
echo/
pause
goto :EOF

:JavaPathFound
if not "%PENTAHO_JAVA:~-1%" == "\" set "PENTAHO_JAVA=%PENTAHO_JAVA%\"
if "%SPOON_CONSOLE%" == "1" (
    set "PENTAHO_JAVA=%PENTAHO_JAVA%java.exe"
) else (
    set "PENTAHO_JAVA=%PENTAHO_JAVA%javaw.exe"
)

rem Check existence of Java executable to run.
if not exist "%PENTAHO_JAVA%" goto ErrorJavaEXE

"%PENTAHO_JAVA%" -version
call "%~dp0set-pentaho-env.bat"

要了解所使用的命令及其工作方式，请打开命令提示符窗口，在其中执行以下命令，并非常仔细地阅读每个命令显示的所有帮助页面.

For understanding the used commands and how they work, open a command prompt window, execute there the following commands, and read entirely all help pages displayed for each command very carefully.

• call /?
• echo /?
• for /?
• goto /?
• if /?
• pause /?
• reg /?
• reg query /?
• rem /?

• call /?
• echo /?
• for /?
• goto /?
• if /?
• pause /?
• reg /?
• reg query /?
• rem /?

另请阅读有关使用命令重定向操作符的Microsoft文章. 2>nul的说明，根据该说明，必须在此导入代码中，在 FOR 命令行中使用转号字符^对重定向运算符进行转义.并阅读使用Windows批处理文件的单行包含多个命令的答案，以获取&运算符的解释.

Read also the Microsoft article about Using Command Redirection Operators for an explanation of 2>nul whereby redirection operator must be escaped in this batch code on FOR command line with caret character ^. And read answer on Single line with multiple commands using Windows batch file for an explanation of & operator.

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