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javaapachedigestclassnotfound

ClassNotFoundException when running in CMD

I'm trying to use DigestUtils class from org.apache.commons.codec.digest and I imported it in java like this:

import org.apache.commons.codec.digest.DigestUtils;

When I run it in Eclipse, it works. But when I try to run it from Command Prompt (with "java Simhash"), I'm getting this:

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/codec/digest/DigestUtils
    at Simhash.main(Simhash.java:17)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.codec.digest.DigestUtils
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 1 more

I'm a total Java-newbie. I downloaded commons-codec-1.10.jar file, put it in my project folder and imported it with Build Path -> Configure Build Path -> Add External JARs...

Any idea?

Solution

  • Add the JAR file to your command line runtime classpath

    java -cp commons-codec-1.10.jar;. Simhash

    This should also simply run directly from Eclipse as youve already added the file to the classpath.