java.opt file adding -D parameters

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Bill
Bill 2013-2-19
Matlab version R2012a Linux
So I want to be able to add various jVM "-D" parameters to the "java.opt" file so that when matlab starts up the JVM these are passed in and accessible with the System.getProperty() function. I want students to be able to pass in things like the IP address of a database server, etc. etc. to the various java classes called.
I have looked high and low and there seems to be no definitive answer to this.
I have tried:
java.opt in the working directory. java.opt in the %MATLABROOT/bin/[ARCH] directory.
and neither seem to work. Am I approaching this wrong or ??
Little help would be appreciated.
  1 个评论
Raymond Norris
Raymond Norris 2013-2-20
That's odd. With R2012b on Windows 7, I've defined java.opts as such:
-DRunTime=12hrs
and placed it in $matlab/bin/$arch. Then in MATLAB, I run:
>> java.lang.System.getProperty('RunTime')
ans =
12hrs
>>

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