Running Java program using .bat file.

[Preetish Madalia]

Hi,
I want to run a java using .bat file. I require some .jar files to be included in classpath as well. Can anybody tell me how to write bat file this case. Thanks in advance.

[Mirko Bonasorte]

java -cp <all your jars, including the one which has the main class> <main class>

[Norm Radder]

After you create the .bat file, make sure it's on the PATH for your OS to be able to find it.
If you have a bunch of batch files that you want to be able to execute without having to change directory, create a folder for them and put the path to that folder in the PATH variable.

[Preetish Madalia]

Mirko,
Does java -cp ./lib/*.jar MainClass.class will help including all my lib files??

[Norm Radder]

I don't know that wildcards work. Try it and let us know.

[Joanne Neal]

Originally posted by Norm Radder:
I don't know that wildcards work. Try it and let us know.

You can since Java 6. See the Understanding class path wildcards section in here

[Preetish Madalia]

I tried using wildcard but its not working.

I am using the following command.

java -CLASSPATH ./lib/*.jar com.test.MainClass
Its giving ClassNotFoundException

[arun nohwar]

Many open source applications like ANT, Tomcat comes with batch file that call java class (to start application). You can look into those batch files, to get more insight into batch file.

[Joanne Neal]

Originally posted by Preetish Madalia:
I tried using wildcard but its not working.

I am using the following command.

java -CLASSPATH ./lib/*.jar com.test.MainClass
Its giving ClassNotFoundException

Try reading again the document that I linked to for the correct format.

[Preetish Madalia]

Hi All,
The issue is resolved. Wildcard is still not working for me. However, we can use for loop to include jars in classpath, making using of option -R.
Thanks a lot for you replies guys.

[Joanne Neal]

For anyone who does want to use wildcards, the relevant part of the link is

Class path entries can contain the basename wildcard character *, which is considered equivalent to specifying a list of all the files in the directory with the extension .jar or .JAR.

i.e. it is slightly different to a normal wildcard. * actually means all the JAR files in a directory, not all the files in a directory.