How to call a Java program from PowerShell?
Solution 1
You will need to use following format for powershell:
Start-Process java -ArgumentList '-jar', 'MyProgram.jar' `
-RedirectStandardOutput '.\console.out' -RedirectStandardError '.\console.err'
Or other option you can use is Start-job:
Start-Job -ScriptBlock {
& java -jar MyProgram.jar >console.out 2>console.err
}
Solution 2
It looks like the -jar
is being picked up as an argument of Start-Process
rather than being passed through to java
.
Although the documentation states that -ArgumentList
is optional, I suspect that doesn't count for -option
-type things.
You probably need to use:
Start-Process -FilePath java -ArgumentList ...
For example, in Powershell ISE, the following line brings up the Java help (albeit quickly disappearing):
Start-Process -FilePath java -argumentlist -help
but this line:
Start-Process -FilePath java -help
causes Powershell itself to complain about the -help
.
GibboK
A professional and enthusiastic Senior Front End Developer. Listed as top 2 users by reputation in Czech Republic on Stack Overflow. Latest open source projects Animatelo - Porting to JavaScript Web Animations API of Animate.css (430+ stars on GitHub) Industrial UI - Simple, modular UI Components for Shop Floor Applications Frontend Boilerplate - An opinionated boilerplate which helps you build fast, robust, and adaptable single-page application in React Keyframes Tool - Command line tool which convert CSS Animations to JavaScript objects gibbok.coding📧gmail.com
Updated on February 24, 2021Comments
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GibboK about 3 years
I need to call a java program (jar file )from PowerShell. The following code works:
java -jar $cls --js $dcn --js_output_file $dco
But I need to have to run the app in a process (using
Start-Process
).I am trying the following with no sucess:
Start-Process -FilePath java -jar $cls --js $dcn --js_output_file $dco -wait -windowstyle Normal
Error:
Start-Process : A parameter cannot be found that matches parameter name 'jar'.
Any idea how to fix it?