这就是我在Windows上安装JRuby的方法 - >为什么它不起作用？

* Download JRuby 1.20. (zip file)
* Extract the zip into C:\JRuby120
* Edit sytem "environment variables":
* Add JRUBY_HOME -> point it to C:\JRuby120
* Modify the PATH environment variable to point to C:\JRuby120\bin; 

After all this, I open up cmd.exe and type jruby

毕竟,我打开cmd.exe并输入jruby

->"The system cannot find the path specified"

- >“系统找不到指定的路径”

What did I do wrong?

我做错了什么?

I removed echo_off from C:\JRuby120\bin\jruby.bat, C:\JRuby120\bin_jrubyvars.bat and C:\JRuby120\bin_jrubyvmopts.bat and invoked jruby from cmd.exe. This was the output:

我从C:\ JRuby120 \ bin \ jruby.bat,C:\ JRuby120 \ bin_jrubyvars.bat和C:\ JRuby120 \ bin_jrubyvmopts.bat中删除了echo_off,并从cmd.exe中调用了jruby。这是输出:

C:\>rem --------------------------------------------------------------------------- 

C:\>rem jruby.bat - Start Script for the JRuby Interpreter 

C:\>rem

C:\>rem for info on environment variables, see internal batch script _jrubyvars.bat 

C:\>setlocal

C:\>rem Sometimes, when jruby.bat is being invoked from another BAT file, 

C:\>rem C:\JRuby120\bin\ is incorrect and points to the current dir, not to JRuby's bin dir, 

C:\>rem so we look on the PATH in such cases. 

C:\>IF EXIST "C:\JRuby120\bin\_jrubyvars.bat" (set FULL_PATH=C:\JRuby120\bin\ )  ELSE (set FULL_PATH=C:\JRuby120\bin\ ) 

C:\>call "C:\JRuby120\bin\_jrubyvars.bat"  

C:\>rem Environment Variable Prequisites: 

C:\>rem

C:\>rem   JRUBY_OPTS    (Optional) Default JRuby command line args. 

C:\>rem

C:\>rem   JAVA_HOME     Must point at your Java Development Kit installation. 

C:\>rem

C:\>rem ----- Save Environment Variables That May Change -------------------------- 

C:\>set _CLASSPATH=.; 

C:\>set _CP= 

C:\>set _JRUBY_CP= 

C:\>set JRUBY_BAT_ERROR=0 

C:\>rem ----- Verify and Set Required Environment Variables ----------------------- 

C:\>if not "C:\Program Files\Java\jdk1.6.0_11\bin" == "" goto gotJava 

C:\>set JRUBY_HOME=C:\JRuby120\bin\.. 

C:\>rem ----- Prepare Appropriate Java Execution Commands ------------------------- 

C:\>if not "" == "" goto gotCommand 

C:\>set _JAVA_COMMAND= 

C:\>set JAVA_COMMAND=java 

C:\>if not "Windows_NT" == "Windows_NT" goto noTitle 

C:\>rem set _STARTJAVA=start "JRuby" "C:\Program Files\Java\jdk1.6.0_11\bin\bin\java" 

C:\>set _STARTJAVA=C:\Program Files\Java\jdk1.6.0_11\bin\bin\java 

C:\>goto gotTitle 

C:\>rem ----- Set up the VM options 

C:\>call "C:\JRuby120\bin\_jrubyvmopts"  

C:\>set _MEM=-Xmx500m 

C:\>if not defined JAVA_MEM goto memOptDone 

C:\>set _STK=-Xss1024k 

C:\>if not defined JAVA_STACK goto stackOptDone 

C:\>set _VM_OPTS= 

C:\>set _RUBY_OPTS= 

C:\>set _DFLT_VM_OPTS= 

C:\>set _JAVA_VM=-client 

C:\>set SAFE_JAVA_HOME=C:\Program Files\Java\jdk1.6.0_11\bin 

C:\>set SAFE_JAVA_HOME=C:\Program Files\Java\jdk1.6.0_11\bin 

C:\>rem

C:\>rem Can you believe I'm rewriting batch arg processing in batch files because batch 

C:\>rem file arg processing sucks so bad? Can you believe this is even possible? 

C:\>rem http://support.microsoft.com/kb/71247 

C:\>rem Escape any quotes. Use _S for ', _D for ", and _U to escape _ itself. 

C:\>rem We have to escape _ itself, otherwise file names with _S and _D 

C:\>rem will be converted to to wrong ones, when we un-escape. See JRUBY-2821. 

C:\>set _ARGS= 

C:\>if not defined _ARGS goto vmoptsDone 

C:\>set _VM_OPTS= -client -Xmx500m -Xss1024k  

C:\>set _DFLT_VM_OPTS= 

C:\>set _MEM= 

C:\>set _STK= 

C:\>set _ARGS= 

C:\>set _VAL= 

C:\>set _CMP= 

C:\>set _CMP1= 

C:\>set _JAVA_VM= 

C:\>set _RUNJAVA="C:\Program Files\Java\jdk1.6.0_11\bin\bin\java" 

C:\>rem ----- Set Up The Boot Classpath ---------------------------------------- 

C:\>for %i in ("C:\JRuby120\bin\..\lib\jruby*.jar") do @call :setjrubycp %i 

C:\>if not "" == "" goto addjrubycp 

C:\>set JRUBY_CP=C:\JRuby120\bin\..\lib\jruby.jar 

C:\>goto :EOF 

C:\>for %i in ("C:\JRuby120\bin\..\lib\bsf*.jar") do @call :setjrubycp %i 

C:\>if not "C:\JRuby120\bin\..\lib\jruby.jar" == "" goto addjrubycp 

C:\>set JRUBY_CP=C:\JRuby120\bin\..\lib\jruby.jar;C:\JRuby120\bin\..\lib\bsf.jar 

C:\>goto :EOF 

C:\>rem ----- Set Up The System Classpath ---------------------------------------- 

C:\>for %i in ("C:\JRuby120\bin\..\lib\*.jar") do @call :setcp %i 

C:\>if not "" == "" goto add 

C:\>set CP=C:\JRuby120\bin\..\lib\bsf.jar 

C:\>goto :EOF 

C:\>if not "C:\JRuby120\bin\..\lib\bsf.jar" == "" goto add 

C:\>set CP=C:\JRuby120\bin\..\lib\bsf.jar;C:\JRuby120\bin\..\lib\jruby.jar 

C:\>goto :EOF 

C:\>if not "C:\JRuby120\bin\..\lib\bsf.jar;C:\JRuby120\bin\..\lib\jruby.jar" == "" goto add 

C:\>set CP=C:\JRuby120\bin\..\lib\bsf.jar;C:\JRuby120\bin\..\lib\jruby.jar;C:\JRuby120\bin\..\lib\profile.jar 

C:\>goto :EOF 

C:\>goto :EOF 

C:\>if 0 == 0 "C:\Program Files\Java\jdk1.6.0_11\bin\bin\java"  -client -Xmx500m -Xss1024k  -Xbootclasspath/a:"C:\JRuby120\bin\..\lib\jruby.jar;C:\JRuby120\bin\..\lib\bsf.jar" -classpath "C:\JRuby120\bin\..\lib\bsf.jar;C:\JRuby120\bin\..\lib\jruby.jar;C:\JRuby120\bin\..\lib\profile.jar;.;" -Djruby.home="C:\JRuby120\bin\.." -Djruby.lib="C:\JRuby120\bin\..\lib" -Djruby.shell="cmd.exe" -Djruby.script=jruby.bat org.jruby.Main   

C:\>set E=3 

C:\>call "C:\JRuby120\bin\_jrubycleanup" 

4 个解决方案

#1

Well, that's what you're supposed to do. Go to the command line and enter echo %PATH% and make sure your jruby bin directory is on there.

嗯,这就是你应该做的。转到命令行并输入echo%PATH%并确保您的jruby bin目录在那里。

---

EDIT:

Ignore the above, that's not the error you'd get for jruby not being in the path. The "The system cannot find the path specified" error is because a path doesn't exist, most likely it's the path to your Java JDK. Run echo %JAVA_HOME%. Make sure that path is correct. If you don't have the Java JDK, you can download it here.

忽略上面的内容,这不是jruby不在路径中的错误。 “系统找不到指定的路径”错误是因为路径不存在,很可能是它是Java JDK的路径。运行echo%JAVA_HOME%。确保路径正确。如果您没有Java JDK,可以在此处下载。

---

EDIT 2:

Having seen the output of jruby.bat, the problem appears to either be in finding _jrubyvars.bat, or finding something called within it. The only thing it calls is _jrubyvmopts.bat, which doesn't call anything else. Make sure that C:\JRuby120\bin\_jrubyvars.bat and C:\JRuby120\bin\_jrubyvmopts.bat exist, although I can't see a reason why they shouldn't. If they both exist, then the next step would be to remove the @echo off lines from each of them and see if we can find exactly where the bad call is taking place.

看过jruby.bat的输出后,问题似乎在于找到_jrubyvars.bat,或者找到在其中调用的内容。它唯一调用的是_jrubyvmopts.bat,它不会调用任何其他内容。确保存在C:\ JRuby120 \ bin \ __ jrubyvars.bat和C:\ JRuby120 \ bin \ _jrubyvmopts.bat,但我看不出他们不应该这样做的原因。如果它们都存在,那么下一步就是从每个中删除@echo off线,看看我们是否能找到发生不良呼叫的确切位置。

---

EDIT 3:

Having seen all that output, it looks like JAVA_HOME is set to "C:\Program Files\Java\jdk1.6.0_11\bin\" JAVA_HOME should be the parent directory: C:\Program Files\Java\jdk1.6.0_11\". Give that a try and cross your fingers this time.

看到所有输出后,看起来JAVA_HOME设置为“C:\ Program Files \ Java \ jdk1.6.0_11 \ bin \”JAVA_HOME应该是父目录:C:\ Program Files \ Java \ jdk1.6.0_11 \ “这次试试并交叉你的手指。

#2

Changing the value of JAVA_HOME from C:\Program Files\Java\jdk1.6.0_11\bin to C:\Program Files\Java\jdk1.6.0_11\ worked for me. My Environment: Win XP, added c:\jruby\bin to the PATH var and created JRUBY_HOME pointing to c:\jruby.

将JAVA_HOME的值从C:\ Program Files \ Java \ jdk1.6.0_11 \ bin更改为C:\ Program Files \ Java \ jdk1.6.0_11 \为我工作。我的环境:Win XP,将c:\ jruby \ bin添加到PATH var并创建指向c:\ jruby的JRUBY_HOME。

Thank You

#3

I had my JAVA_HOME environment variable missing. fixing that worked for me in Windows 7

我丢失了JAVA_HOME环境变量。修复在Windows 7中对我有用的功能

#4

I had the same problem and tried everything mentioned here without success.

我有同样的问题,并尝试了这里提到的一切,没有成功。

My solution: reboot your PC. Worked for me!

我的解决方案:重启你的电脑。为我工作!