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ClassNotFoundException: DispatcherServlet

pradeep chellappan rm
Greenhorn

Joined: Mar 21, 2010
Posts: 15
Hi,

I was trying to do my first program in Spring MVC. I referred the below tutorial for helloworld example

http://blog.springsource.org/2011/01/04/green-beans-getting-started-with-spring-mvc/

I got the below exception on startup of server:

WARNING: [SetContextPropertiesRule]{Context} Setting property 'source' to 'org.eclipse.jst.jee.server:Beginer' did not find a matching property.
May 05, 2013 5:53:12 PM org.apache.catalina.core.ApplicationContext log
INFO: Marking servlet appServlet as unavailable
May 05, 2013 5:53:12 PM org.apache.catalina.core.StandardContext loadOnStartup
SEVERE: Servlet /Beginer threw load() exception
java.lang.ClassNotFoundException: org.springframework.web.servlet.DispatcherServlet

Since i am learning, i took 1 jar at a time to understand the imports better. I am Using STS IDE. I added 3 jars to start with. ( I know i might require other jars, but trying to tackle exception and resolve one by one). Below are the jars that i added in build path of the project:

1. spring-context-3.2.2
2. spring-web-3.2.2
3. spring-webmvc-3.2.2

Spring-webmvc has DispatcherServlet. I double checked classpath and it also had all the 3 jars added. I am confused why this error should be thrown. Can somebody please clarify. My goal is to resolve this exception, though i might get another one after this.


Regards.
Pradeep
pradeep chellappan rm
Greenhorn

Joined: Mar 21, 2010
Posts: 15
I was able to identify the cause.

I was literally adding all the jars directly in system folders instead of STS projectexplorer/navigator WEB-INF/lib. This is still a surprise why it won't accept if i add it in sytem folder under the exact location. I got multiple exception since i was adding one jar at a time and finally got my HelloWorld.

Thanks.
Vaibhav G Garg
Ranch Hand

Joined: Sep 23, 2011
Posts: 140
System folder jars are used to identify the classes at compile time but at run time all the classes must be present in the lib folder.
 
Don't get me started about those stupid light bulbs.
 
subject: ClassNotFoundException: DispatcherServlet
 
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