Run Java Applications Using the Many JARs File

Run Java Applications Using the Many JARs File

You can do this without using the classpath directive at the command line. How? Easy! Just write a launcher! Here’s the code:

 /*	Allow you to type "java QuickRunner"	instead of "java -classpath foo.jar;bar.jar;. MyApp*/public class QuickRunner{    public static void main(String args[])    {        try        {            String defaultClassPath =System.getProperty("java.class.path");            String fileSep = System.getProperty("file.separator");            String pathSep = System.getProperty("path.separator");            String currDir = ".";            String beanJars = "foo.jar" + pathSep + "bar.jar; // _the jarfile needed by the application            String myClassPath = currDir + pathSep + beanJars + _pathSep +defaultClassPath;            String env[] = new String[1];            env[0] = "CLASSPATH=" + myClassPath;            String command = "java MyApp";            Process p = Runtime.getRuntime().exec(command, env);            new InputStreamMonitor(p.getInputStream());            new InputStreamMonitor(p.getErrorStream());            p.waitFor();        }        catch(Exception e)        {            e.printStackTrace();        }    }}


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