How to Execute Batch Files from Java Applications?

Executing Batch Files from Java Applications

When attempting to run a batch file from a Java application, it's important to understand its non-executable nature. Batch files require an external application like cmd.exe to execute them.

Java Code Snippet

The following Java code attempts to execute a batch file, but fails to do so as it doesn't specify the necessary application:

Runtime.
   getRuntime().
   exec("build.bat", null, new File("."));

Solution: Specifying the Execution Application

To successfully execute a batch file, the code must specify the application that will run it. On Windows, this is typically cmd.exe.

Runtime.
   getRuntime().
   exec("cmd /c start \"\" build.bat");

• "cmd /c" creates a new command window and executes the specified command.
• "start """ opens a separate command window with a blank title, where the batch file output will be displayed.

Alternatively, you can use:

Runtime.
   getRuntime().
   exec("cmd /c build.bat");

• This will display the batch file output in the same command window that the Java application is running in.

The above is the detailed content of How to Execute Batch Files from Java Applications?. For more information, please follow other related articles on the PHP Chinese website!