Created
April 25, 2013 02:30
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Given a jar file, extract out the `pom.properties` and create a java.util.Properties object from it.
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import java.io.*; | |
import java.util.*; | |
import java.util.jar.*; | |
public class JarList | |
{ | |
public static void main (String args[]) throws IOException | |
{ | |
if (args.length != 1) | |
{ | |
System.out.println("Please provide a JAR filename"); | |
System.exit(-1); | |
} | |
JarFile jarFile = new JarFile(args[0]); | |
Enumeration enu = jarFile.entries(); | |
while (enu.hasMoreElements()) | |
process(jarFile, enu.nextElement()); | |
} | |
private static void process(JarFile jarFile, Object obj) throws IOException | |
{ | |
JarEntry entry = (JarEntry)obj; | |
String name = entry.getName(); | |
if(name.endsWith("pom.properties")) { | |
InputStream is = jarFile.getInputStream(entry); | |
Properties p = new Properties(); | |
p.load(is); | |
String g = p.getProperty("groupId"); | |
String a = p.getProperty("artifactId"); | |
String v = p.getProperty("version"); | |
System.out.println(g+":"+a+":"+v); | |
} | |
} | |
} |
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