java.lang.ClassNotFoundException:org.springframework.web.servlet.DispatcherServlet(即使我有SpringWebMVC.jar)
我正在尝试用SpringMVC和hibernate创建scratch级别的项目。在这种情况下,我下载了所有与spring和hibernate相关的jar。在运行我的项目时,我发现了以下错误java.lang.ClassNotFoundException:org.springframework.web.servlet.DispatcherServlet(即使我有SpringWebMVC.jar),java,spring,hibernate,spring-mvc,servlets,Java,Spring,Hibernate,Spring Mvc,Servlets,我正在尝试用SpringMVC和hibernate创建scratch级别的项目。在这种情况下,我下载了所有与spring和hibernate相关的jar。在运行我的项目时,我发现了以下错误 java.lang.ClassNotFoundException: org.springframework.web.servlet.DispatcherServlet 但由于我的知识DipatcherServlet类将在springwebmvc.jar中提供,我还添加了这个jar。 请查看下面的代码并帮助我
java.lang.ClassNotFoundException: org.springframework.web.servlet.DispatcherServlet
但由于我的知识DipatcherServlet
类将在springwebmvc.jar
中提供,我还添加了这个jar。
请查看下面的代码并帮助我
web.xml
如果您已经添加了jar,请检查添加它的位置。通常的方法是拥有一个lib文件夹,并将所有jar添加到lib文件夹中。这里需要注意的是,不要忘记将lib的所有jar添加到类的构建路径中。
您可能可以通过选择每个jar从project explorer窗口本身执行此操作,或者可以使用以下层次结构导入文件夹及其内容:project->Prefrences->Build Path。可能您缺少viewClass请尝试使用此选项
<bean id="jspViewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass"
value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
您可以将spring依赖项更新为
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>3.2.1.RELEASE</version>
</dependency>
org.springframework
弹簧网
3.2.1.1发布
检查你的jar文件是否已经在你的.m2文件夹中被删除/在lib文件夹中检查它你能用这些修改你的pom和spring-context.xml吗?我相信这会对你有所帮助
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:lang="http://www.springframework.org/schema/lang"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<context:annotation-config />
<context:component-scan base-package="your base package" />
<bean id="Check" class="yourbase.check.ModelClassfile">
</bean>
<bean id="jspViewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass"
value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"
p:location="/WEB-INF/jdbc.properties" />
<bean id="dataSource"
class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"
p:driverClassName="${jdbc.driverClassName}"
p:url="${jdbc.databaseurl}" p:username="${jdbc.username}"
/>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="configLocation">
<value>classpath:hibernate.cfg.xml</value>
</property>
<property name="configurationClass">
<value>org.hibernate.cfg.AnnotationConfiguration</value>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${jdbc.dialect}</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean>
<tx:annotation-driven />
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
</beans>
类路径:hibernate.cfg.xml
org.hibernate.cfg.AnnotationConfiguration
${jdbc.dial}
符合事实的
------pom.xml-----
4.0.0
学校
经营
战争
0.0.1-快照
经营
maven编译器插件
1.5
1.5
maven战争插件
2.0.1
javax.servlet
servlet api
2.5
org.springframework
春豆
${org.springframework.version}
org.springframework
SpringJDBC
${org.springframework.version}
org.springframework
弹簧网
${org.springframework.version}
org.springframework
SpringWebMVC
${org.springframework.version}
org.springframework
春季甲虫
${org.springframework.version}
org.hibernate
休眠实体管理器
3.3.2.GA
javax.transaction
jta
1.1
塔格利布
标准
1.1.2
javax.servlet
jstl
1.1.2
mysql
mysql连接器java
5.1.10
公共dbcp
公共dbcp
20030825.184428
共用池
共用池
20030825.183949
org.springframework
弹簧网
3.2.1.1发布
3.2.1.1发布
UTF-8
---------------------------请如前所述修改spring上下文文件-----
---------并检查您在web.xml中正确给出的spring上下文文件的位置
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring-servlet.xml</param-value>
</init-param>
上下文配置位置
/WEB-INF/spring-servlet.xml
您可以很好地使用localSessionFactory,因为这样做没有任何危害,并且可以像这样使用sessionfactory@自动连线 私人会话工厂会话工厂
@Override
public void createSection(Section section) {
sessionFactory.getCurrentSession().save(section);
}
@Override
public void deleteSection(Section section) {
sessionFactory.getCurrentSession().delete(section);
}
@Override
public Section findBySectionID(int id) {
Query query = sessionFactory.getCurrentSession().createQuery("from Section
where id = " + id);
return (Section) query.list().get(0);
}
和hibernate.cfg.xml。这是用来告诉我的模型对象是什么和在哪里的xml[java模型数据库映射对象]
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate
Configuration DTD//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<mapping class="something.packake.model.modelcalssName1" />
<mapping class="something.packake.model.modelcalssName2" />
</session-factory>
</hibernate-configuration>
在我的案例中,我使用了常春藤,我面临着同样的问题。你可以做这两件事中的任何一件
对于第二种方法,你可以参考我的个人博客文章-。或者您也可以查看我问的类似问题。检查您的maven依赖项是否已添加到部署路径中 要执行此操作,请遵循以下步骤。 1.转到项目的属性。 2.单击展开组件。 3.单击右侧的添加按钮。 4.然后转到java构建路径。 5.然后它将显示maven依赖项并添加它。
6.请重试运行您的项目。我用一种简单的方法解决了这个问题:
根据您使用的spring版本,例如,如果spring的版本是spring的4X,则可以在web.xml文件中避免servlet调度程序声明 我知道现在已经很晚了,但也许有人会面对它 我也有这个问题 我的项目不是maven项目 我通过以下方式解决了这个问题: 1-右键单击项目并选择“属性” 2-选择“展开组件” 3-单击添加按钮 4-选择“Java构建路径条目” 5-单击下一步并选择所有罐子
6-完成。请检查您的WEB-INF/lib文件夹,它是否确实存在。您在哪里添加了jar?为什么要注释掉此依赖项?-org.springframework.web.servletcheck DipatcherServlet通过按ctrl+shift+tAnd在类路径上可用,并检查JAR文件在类路径中是否冲突实际上我正在用pom.xml文件添加JAR,但我不知道JAR将存储在哪里,我签入了“java构建路径”在这种情况下,maven Dependencies包含我在pom文件中添加的所有jar。决定
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:lang="http://www.springframework.org/schema/lang"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<context:annotation-config />
<context:component-scan base-package="your base package" />
<bean id="Check" class="yourbase.check.ModelClassfile">
</bean>
<bean id="jspViewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass"
value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"
p:location="/WEB-INF/jdbc.properties" />
<bean id="dataSource"
class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"
p:driverClassName="${jdbc.driverClassName}"
p:url="${jdbc.databaseurl}" p:username="${jdbc.username}"
/>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="configLocation">
<value>classpath:hibernate.cfg.xml</value>
</property>
<property name="configurationClass">
<value>org.hibernate.cfg.AnnotationConfiguration</value>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${jdbc.dialect}</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean>
<tx:annotation-driven />
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
</beans>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>school</groupId>
<artifactId>management</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<description></description>
<build>
<finalName>management</finalName>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.5</source>
<target>1.5</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.0.1</version>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>3.3.2.GA</version>
</dependency>
<dependency>
<groupId>javax.transaction</groupId>
<artifactId>jta</artifactId>
<version>1.1</version>
</dependency>
<!-- dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId>
<version>1.4.2</version> </dependency -->
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>1.1.2</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.1.2</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.10</version>
</dependency>
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>20030825.184428</version>
</dependency>
<dependency>
<groupId>commons-pool</groupId>
<artifactId>commons-pool</artifactId>
<version>20030825.183949</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>3.2.1.RELEASE</version>
</dependency>
</dependencies>
<properties>
<org.springframework.version>3.2.1.RELEASE</org.springframework.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
</project>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring-servlet.xml</param-value>
</init-param>
@Override
public void createSection(Section section) {
sessionFactory.getCurrentSession().save(section);
}
@Override
public void deleteSection(Section section) {
sessionFactory.getCurrentSession().delete(section);
}
@Override
public Section findBySectionID(int id) {
Query query = sessionFactory.getCurrentSession().createQuery("from Section
where id = " + id);
return (Section) query.list().get(0);
}
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate
Configuration DTD//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<mapping class="something.packake.model.modelcalssName1" />
<mapping class="something.packake.model.modelcalssName2" />
</session-factory>
</hibernate-configuration>