How to run jar inside specific directory?-CodePudding

I want to run a jar file in a specific directory without moving to this directory.

I mean what will work is

cd /path/to/directory
java -jar <file>.jar

I tried it with -Duser.dir and later additionally with -Djava.class.path

java -Duser.dir=/path/to/directory -jar <file>.jar
Error: Unable to access jarfile Pepper_ConciergeShort.jar

So if I try it with

java -Duser.dir=/path/to/directory -jar /path/to/directory/<file>.jar

I will receive

java.io.FileNotFoundException: ./concierge.conf (No such file or directory)
        at java.io.FileInputStream.open0(Native Method)
        at java.io.FileInputStream.open(FileInputStream.java:195)
        at java.io.FileInputStream.<init>(FileInputStream.java:138)
        at java.io.FileInputStream.<init>(FileInputStream.java:93)
        at java.io.FileReader.<init>(FileReader.java:58)

Then I tried it again with -Djava.class.path=/path/to/directory. Did not help. I will receive the following error.

So again, if I run inside /path/to/directory my jar file it works. If not, I have problems to read files in this directory.

CodePudding user response：

The -jar directive won't work for you. Specify the full classpath to all your jars, including your own app-jar. Then also specify the class there your main method is located.

CodePudding user response：

How about

java -jar /path/to/directory/<file>.jar