Web应用程序中的Servlet [mvc-dispatcher]抛出load（）异常java.lang.ClassNotFoundException

Question

你好我是新来的春天，我试图建立一个简单的弹簧MVC项目 ，但是当我运行我的代码时， ：在web应用程序的Servlet [MVC-调度]扔负荷（）异常抛出java.lang.ClassNotFoundException

的web.xml

<web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
      http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
    version="2.5"> 

    <display-name>Sample Spring Maven Project</display-name> 

    <servlet> 
     <servlet-name>mvc-dispatcher</servlet-name> 
     <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> 
     <init-param> 
      <param-name>contextConfigLocation</param-name> 
      <param-value>/WEB-INF/spring-config.xml</param-value> 
     </init-param> 
     <load-on-startup>1</load-on-startup> 
    </servlet> 

    <servlet-mapping> 
     <servlet-name>mvc-dispatcher</servlet-name> 
     <url-pattern>/</url-pattern> 
    </servlet-mapping> 

</web-app> 

弹簧-config.xml中是

 <?xml version="1.0" encoding="UTF-8"?> 
    <beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/ 2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" 
    xmlns:util="http://www.springframework.org/schema/util" xmlns:mvc="http://www.springframework.org/schema/mvc" 
    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd 
    http://www.springframework.org/schema/beans  http://www.springframework.org/schema/beans/spring-beans.xsd 
    http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.2.xsd 
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd"> 

    <context:component-scan base-package="com.newproject.controller" /> 
    <context:property-placeholder location="classpath:database.properties" /> 
    <mvc:annotation-driven /> 

    <bean id="dataSource" 
    class="org.springframework.jdbc.datasource.DriverManagerDataSource"> 
    <property name="driverClassName" value="${database.driver}" /> 
    <property name="url" value="${database.url}" /> 
    <property name="username" value="${database.user}" /> 
    <property name="password" value="${database.password}" /> 
    </bean> 

    <bean id="sessionFactory" 
    class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"> 
    <property name="dataSource" ref="dataSource" /> 
    <property name="annotatedClasses"> 
      <list> 
       <value>com.newproject.domain.Employee</value> 
      </list> 
     </property> 
    <property name="hibernateProperties"> 
    <props> 
    <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop> 
    <prop key="hibernate.show_sql">${hibernate.show_sql}</prop> 
    </props> 
    </property> 
    </bean> 

    <bean id="txManager" 
    class="org.springframework.orm.hibernate4.HibernateTransactionManager"> 
    <property name="sessionFactory" ref="sessionFactory" /> 
    </bean> 

    <bean id="persistenceExceptionTranslationPostProcessor" 
    class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostPro cessor" /> 

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


    <bean id="dataDaoImpl" class="com.newproject.dao.DataDaoImpl" /> 
    <bean id="dataServiceImpl" class="com.newproject.services.DataServiceImpl"/> 
    </beans> 

pom.xml

 <modelVersion>4.0.0</modelVersion> 
    <groupId>com.newproject</groupId> 
    <artifactId>NewProject</artifactId> 
    <version>0.0.1-SNAPSHOT</version> 
    <packaging>war</packaging> 
    <name>MyNewProject</name> 
    <url>http://maven.apache.org</url> 
    <properties> 
    <spring.version>4.0.5.RELEASE</spring.version> 
    <hibernate.version>4.3.5.Final</hibernate.version> 
    <log4j.version>1.2.17</log4j.version> 
    <jdk.version>1.7</jdk.version> 
    <context.path>SpringHibernateAnnotations</context.path> 
</properties> 
<developers> 

    <developer> 
    <id>Nagesh Chauhan</id> 
    <email>beingjavaguy@gmail.com</email> 
    <organization>beingjavaguys.com</organization> 
    <organizationUrl>http://www.beingjavaguys.com</organizationUrl> 
    <roles> 
    <role>Java Developer</role> 
    </roles> 
    <timezone>+5:30</timezone> 
    </developer> 
</developers> 

<build> 
    <finalName>${pom.artifactId}</finalName> 

    <plugins> 
    <!-- Maven compiler plugin --> 
    <plugin> 
    <artifactId>maven-compiler-plugin</artifactId> 
    <configuration> 
    <source>${jdk.version}</source> 
    <target>${jdk.version}</target> 
    </configuration> 
    </plugin> 
    </plugins> 
</build> 
<dependencies> 
    <dependency> 
    <groupId>log4j</groupId> 
    <artifactId>log4j</artifactId> 
    <version>${log4j.version}</version> 
    </dependency> 

    <dependency> 
    <groupId>org.springframework</groupId> 
    <artifactId>spring-orm</artifactId> 
    <version>${spring.version}</version> 
    </dependency> 
    <dependency> 
    <groupId>org.springframework</groupId> 
    <artifactId>spring-jdbc</artifactId> 
    <version>${spring.version}</version> 
    </dependency> 

    <dependency> 
    <groupId>org.springframework</groupId> 
    <artifactId>spring-web</artifactId> 
    <version>${spring.version}</version> 
    </dependency> 

    <dependency> 
    <groupId>org.hibernate</groupId> 
    <artifactId>hibernate-entitymanager</artifactId> 
    <version>${hibernate.version}</version> 
    </dependency> 

    <dependency> 
    <groupId>org.springframework</groupId> 
    <artifactId>spring-webmvc</artifactId> 
    <version>${spring.version}</version> 
    </dependency> 

    <dependency> 
    <groupId>jstl</groupId> 
    <artifactId>jstl</artifactId> 
    <version>1.2</version> 
    </dependency> 
    <dependency> 
    <groupId>mysql</groupId> 
    <artifactId>mysql-connector-java</artifactId> 
    <version>5.1.6</version> 
    </dependency> 


    </dependencies> 
    </project> 

Answer 1

我最近有同样的错误。我在Eclipse（Luna）中运行Spring MVC项目。我将“自动构建”选项关闭，并造成问题。尝试重新打开它并尝试再次运行该项目。