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The way to Repair java.lang.ClassNotFoundException: org.springframework.internet.servlet.DispatcherServlet in Tomcat


Downside: You’re getting java.lang.ClassNotFoundException exception complaining that Spring’s DispatcherServlet class is just not accessible within the classpath. This error is coming whereas working a Spring MVC based mostly Java utility from Eclipse and Tomcat as Server (working inside Eclipse IDE itself). You will have both included spring framework JAR recordsdata manually by your self or you’re utilizing Maven to obtain and handle dependent JAR recordsdata. Right here is the stack hint of this error :

java.lang.ClassNotFoundException: org.springframework.internet.servlet.DispatcherServlet
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1678)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1523)
    at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:525)
    at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:507)
    at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:126)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1099)
    at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1043)
    at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4957


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Reason for java.lang.ClassNotFoundException: org.springframework.internet.servlet.DispatcherServlet

There are two essential explanation for getting java.lang.ClassNotFoundException: org.springframework.internet.servlet.DispatcherServlet error in Eclipse :

1) First, both you do not have spring-webmvc-3.1.0.RELEASE.jar or comparable JAR, relying upon which Spring framework model you’re utilizing e.g. Spring 4.0

2) Second is, Eclipse is just not capable of finding this dependency in CLASSPATH.

However earlier than going into these, let’s first perceive what’s org.springframework.internet.servlet.DispatcherServlet class? and why it’s required?.

This class is definitely the entrance controller within the Spring MVC framework, all HTTP requests go through this class to completely different controller lessons. You outline this class to map in opposition to a URL sample within the internet.xml file utilizing a load-on-startup tag, that is why you see that loadOnStartup() name on stack hint of this error. 

Because of this if you deploy your Spring MVC-based internet utility in Tomcat, the WebAppClassLoader seek for org.springframework.internet.servlet.DispatcherServlet class in school loader’s CLASSPATH, which is WEB-INF/lib folder of your Java Net utility.

If it would not discovered this class inside any JAR file in WEB-INF/lib, it throws java.lang.ClassNotFoundException: org.springframework.internet.servlet.DispatcherServlet.

If you’re new to Spring, you may as well check out the Spring in Motion e-book, one of many higher books to be taught the fundamentals of Spring framework and Spring MVC collectively. The fourth version of this e-book additionally covers Spring 4.

java.lang.ClassNotFoundException: org.springframework.web.servlet.DispatcherServlet in Tomcat and Eclipse

Now let’s examine find out how to resolve this drawback.

The way to Repair java.lang.ClassNotFoundException: org.springframework.internet.servlet.DispatcherServlet in Tomcat and Eclipse

Listed below are some steps you possibly can take to cope with this error in Tomcat inside Eclipse IDE :

1) If you’re utilizing Maven and if spring-webmvc is just not added as a dependency in your undertaking’s pom.xml then please add that. When you try this, construct your undertaking utilizing mvn set up or mvn construct. This may obtain spring MVC JAR recordsdata and one other dependency.

2) The second step is so as to add Maven Dependency into deployment meeting. That is required to maneuver all dependent JAR recordsdata into the WEB-INF/lib listing of the Java internet utility.

As a way to add Maven Dependency into deployment meeting in Eclipse, observe the beneath steps :

i) Proper-click your undertaking, choose properties, and select Deployment Meeting.

How to add maven dependency in Eclipse Web project

ii)  Now click on Add and select Java Construct Path Entries and choose Maven dependency theirs. In case your undertaking is just not set for the automated construct then simply refresh the undertaking and construct it.

Now you need to be capable of run your Spring MVC utility within the hooked up Tomcat from Eclipse IDE itself.

3) If this does not repair your drawback then do a Maven clear, adopted by Maven construct to regenerate the WAR file.

That is all about find out how to repair java.lang.ClassNotFoundException: org.springframework.internet.servlet.DispatcherServlet error in Eclipse and Tomcat. It is also attainable that you simply get this error exterior Eclipse IDE if you end up deploying your WAR file in one other surroundings. That point you will need to verify whether or not a related JAR file like spring-webmvc-3.1.0.RELEASE.jar exists in both WEB-INF/lib listing of your utility or Tomcat/lib listing.

It is higher to maintain in WEB-INF/lib listing as a result of if you undeploy all of the lessons loaded by WebAppClassLoader are eligible for rubbish assortment, which isn’t the case for JAR recordsdata loaded from Tomcat’s lib listing. That may trigger a PermGen Reminiscence leak in Tomcat.

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Thanks for studying this text up to now. In the event you discover my answer and clarification helpful then please share it with your folks and colleagues. When you have any
questions or suggestions then please drop a be aware.

– If you wish to discover ways to develop RESTful Net Service utilizing Spring MVC in-depth, I recommend you be part of the

by Eugen Paraschiv. Among the best programs to be taught REST with Spring MVC. 



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