Beginner Question: Caused by: java.lang.ClassNotFoundException: org.apache.commons.l

[ontheDB]

[CODE]Hi,

Beginner question here and i'm not sure this is the right forum for it.

I'm starting to learn spring now (using the Manning Spring IN Action text).

I created a new Spring Project and copied their first example in the book, which is a real simple one below.

However, I get the exception below.

Some possible issues I saw that haven't verified yet:

1. I should be creating a different type of project
2. It cannot find the knights.xml
3. Apache is not installed correctly..does it even require it??


Thanks in Advance

package com.springinaction.knights;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.beans.BeansException;


public class KnightMain {

	public static void main(String[] args) {
		
		ApplicationContext context = new ClassPathXmlApplicationContext("knights.xml");

		Knight knight = (Knight) context.getBean("knight");
		knight.embarkQuest();
	}
	
}

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory
	at org.springframework.context.support.AbstractApplicationContext.<init>(AbstractApplicationContext.java:160)
	at org.springframework.context.support.AbstractRefreshableApplicationContext.<init>(AbstractRefreshableApplicationContext.java:89)
	at org.springframework.context.support.AbstractRefreshableConfigApplicationContext.<init>(AbstractRefreshableConfigApplicationContext.java:59)
	at org.springframework.context.support.AbstractXmlApplicationContext.<init>(AbstractXmlApplicationContext.java:61)
	at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:136)
	at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
	at com.springinaction.knights.KnightMain.main(KnightMain.java:12)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory
	at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
	... 7 more

[Marten Deinum]

Well what does the struck trace tell you.. The class isn't there, add the class... I.e. add commons-logging... (I strongly suggest you use maven/ant+ivy/gradle to manage your dependencies.).