類未找到異常Spring MVC

Question

我正在啓動一個新的mvcspring項目，並且正在獲取下面看到的異常。 我收到此錯誤：

SEVERE: Servlet /SpringMVC threw load() exception 
java.lang.ClassNotFoundException: com.mkyong.common.controller.HelloWorldController 
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714) 
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559) 
    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) 
    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.preInstantiate 

我的調度員的servlet如下：

<beans xmlns="http://www.springframework.org/schema/beans" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans-2.5.xsd"> 

    <bean name="/welcome.htm" 
    class="com.mkyong.common.controller.HelloWorldController" /> 

    <bean id="viewResolver" 
     class="org.springframework.web.servlet.view.InternalResourceViewResolver" > 
     <property name="prefix"> 
      <value>/WEB-INF/pages/</value> 
     </property> 
     <property name="suffix"> 
      <value>.jsp</value> 
     </property> 
    </bean> 

</beans> 

我的豆實際上是所謂的正確名稱，我不明白的問題。這是我的web.xml：

<web-app id="WebApp_ID" version="2.4" 
    xmlns="http://java.sun.com/xml/ns/j2ee" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
    http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> 

    <display-name>Spring Web MVC Application</display-name> 

    <servlet> 
    <servlet-name>mvc-dispatcher</servlet-name> 
     <servlet-class> 
        org.springframework.web.servlet.DispatcherServlet 
     </servlet-class> 
     <load-on-startup>1</load-on-startup> 
    </servlet> 

    <servlet-mapping> 
    <servlet-name>mvc-dispatcher</servlet-name> 
     <url-pattern>*.htm</url-pattern> 
    </servlet-mapping> 

</web-app> 

它問的控制器是HelloWorldController。任何幫助小菜賞識！ 編輯：添加控制器代碼和項目結構。

package com.mkyong.common.controller; 

import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletResponse; 

import org.springframework.web.servlet.ModelAndView; 
import org.springframework.web.servlet.mvc.AbstractController; 

public class HelloWorldController extends AbstractController { 

    @Override 
    protected ModelAndView handleRequestInternal(HttpServletRequest request, 
      HttpServletResponse response) throws Exception { 

     ModelAndView model = new ModelAndView("HelloWorldPage"); 
     model.addObject("msg", "hello world"); 

     return model; 
    } 

} 

下面是項目結構：http://www.mkyong.com/wp-content/uploads/2010/07/spring-mvc-hello-wold.png

Answer 1

我發現奇怪的是這不是我的代碼有問題，但實際上，我還沒有一臺服務器分配給我的項目。我注意到，在我的JSP中的第一行的第一行即<％@標籤庫有一個錯誤....

然後我發現這個和變戲法How to resolve : Can not find the tag library descriptor for "http://java.sun.com/jsp/jstl/core"