Spring MVC Problem

Greenhorn

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posted 13 years ago

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Hi,

I'm new to Spring So I'm develop some Spring MVC application. But I got 404 error. Here is the code.

HelloController.java

hello.jsp

web.xml

springapp-servlet.xml

ref : http://static.springsource.org/docs/Spring-MVC-step-by-step/part1.html

When I'm going to run on tomcat server I got the following Exception

org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [springapp.web.HelloController] for bean with name '/hello.htm' defined in ServletContext resource [/WEB-INF/springapp-servlet.xml]; nested exception is java.lang.ClassNotFoundException: springapp.web.HelloController
	at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1141)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:524)
	at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1177)
	at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:758)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:422)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:402)
	at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:316)
	at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:282)
	at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:126)
	at javax.servlet.GenericServlet.init(GenericServlet.java:158)
	at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1133)
	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1087)
	at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:996)
	at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4762)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5045)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:812)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:787)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:570)
	at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:891)
	at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:683)
	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:466)
	at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1267)
	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:308)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
	at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:89)
	at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:328)
	at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:308)
	at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1043)
	at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:738)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)
	at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1035)
	at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:289)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)
	at org.apache.catalina.core.StandardService.startInternal(StandardService.java:442)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)
	at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:674)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:596)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:303)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:431)
Caused by: java.lang.ClassNotFoundException: springapp.web.HelloController
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1671)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1516)
	at org.springframework.util.ClassUtils.forName(ClassUtils.java:211)
	at org.springframework.beans.factory.support.AbstractBeanDefinition.resolveBeanClass(AbstractBeanDefinition.java:385)
	at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1138)
	... 46 more

What is the wrong with this code ? Please give a help to run this.

Prasad Krishnegowda

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Posts: 672

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posted 13 years ago

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This exception clearly tells you that, spring can't find the controller class.. Are you sure, your controller class is compiled..
Try rebuilding the application.

Mark Spritzler

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Posts: 17347

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posted 13 years ago

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Just an added note. If you are learning Spring and Spring MVC here, I recommend using the latest version of Spring, which deprecates the Controller interfaces for the better @MVC approach.

Mark

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