创建Spring bean时出错

我正在使用Spring 3.1.4

控制器类

package com.demo.scheduler.controller;

import java.util.Map;

import com.demo.scheduler.service.SchedulerService;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

@Controller
public class SchedulerController {

    private SchedulerService service;

    @Autowired
    public SchedulerController(SchedulerService service) {
        this.service = service;

    }

    @RequestMapping(value = "/tasklist",method = RequestMethod.GET)
    public String listTask(Map<String, Object> model) {
        model.put("task", service.getTask());

        return "tasklist";

    }
}

服务实施

package com.demo.scheduler.service;

import com.demo.scheduler.TaskConfig;

@Service
@Transactional(propagation = Propagation.SUPPORTS, readOnly = true)
public class SchedulerServiceImpl implements SchedulerService {
    @Autowired
    public SchedulerDAO schedulerDAO;

    @Override
    @Transactional(propagation = Propagation.REQUIRED, readOnly = false)
    public List<TaskConfig> getTask() {

        return schedulerDAO.getTask();
    }

}

DAO实施

package com.demo.scheduler.dao;

import com.demo.scheduler.TaskConfig;

import java.util.List;

import org.hibernate.SessionFactory;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;

@Repository
public class HibernateDAO implements SchedulerDAO {

    @Autowired
    private SessionFactory sessionFactory;

    public HibernateDAO(SessionFactory sessionFactory) {
        this.sessionFactory = sessionFactory;

    }

    @SuppressWarnings("unchecked")
    @Override
    public List<TaskConfig> getTask() {

        return sessionFactory.getCurrentSession().createCriteria(
                TaskConfig.class).list();
    }

}

web.xml中

<?xml version="1.0" encoding="UTF-8"?>
<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>demoscheduler</display-name>
    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
        <welcome-file>index.htm</welcome-file>
        <welcome-file>index.jsp</welcome-file>
        <welcome-file>default.html</welcome-file>
        <welcome-file>default.htm</welcome-file>
        <welcome-file>default.jsp</welcome-file>
    </welcome-file-list>

    <servlet>
        <servlet-name>demo</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet
        </servlet-class></servlet>

    <servlet-mapping>
        <servlet-name>demo</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping><session-config>
        <session-timeout>60</session-timeout>
    </session-config>
</web-app>

演示servlet.xml中

<?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:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
           http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-3.0.xsd
           http://www.springframework.org/schema/tx 
           http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">

    <context:component-scan base-package="com.demo.scheduler" />
    <context:annotation-config />
    <tx:annotation-driven />

    <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">
        <property name="location">
            <value>/WEB-INF/resources/hibernate.properties
            </value>
        </property>
    </bean>


    <bean class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"
        id="sessionFactory">
        <property name="dataSource" ref="dataSource">
        </property>
        <property name="configLocations">
            <list>
                <value>/WEB-INF/resources/schedulerTask.hbm.xml
                </value>
            </list>
        </property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">${hibernate.dialect}</prop>
                <prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
                <prop key="hibernate.format_sql">${hibernate.format_sql}</prop>
                <prop key="hibernate.connection.provider_class">${hibernate.connection.provider_class}
                </prop>
                <prop key="hibernate.c3p0.acquire_increment">${hibernate.c3p0.acquire_increment}
                </prop>
                <prop key="hibernate.c3p0.idle_test_period">${hibernate.c3p0.idle_test_period}
                </prop>
                <prop key="hibernate.c3p0.max_size">${hibernate.c3p0.max_size}
                </prop>
                <prop key="hibernate.c3p0.max_statements">${hibernate.c3p0.max_statements}
                </prop>
                <prop key="hibernate.c3p0.min_size">${hibernate.c3p0.min_size}
                </prop>
                <prop key="hibernate.c3p0.timeout">${hibernate.c3p0.timeout}
                </prop>
            </props>
        </property>
    </bean>

    <bean class="org.springframework.jdbc.datasource.DriverManagerDataSource"
        id="dataSource">

        <property name="driverClassName" value="${hibernate.connection.driver_class}" />
        <property name="url" value="${hibernate.connection.url}" />
        <property name="username" value="${hibernate.connection.username}" />
        <property name="password" value="${hibernate.connection.password}" />
    </bean>



    <bean id="transactionManager"
        class="org.springframework.orm.hibernate3.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>

</beans>

更新代码后，我收到以下错误：

9544 [http-4186-2]错误org.springframework.web.servlet.DispatcherServlet - 上下文初始化失败org.springframework.beans.factory.BeanCreationException：创建名为'schedulerController'的bean时出错：注入自动连接的依赖项失败;嵌套异常是org.springframework.beans.factory.BeanCreationException：无法自动装配字段：private com.demo.scheduler.service.SchedulerService com.demo.scheduler.controller.SchedulerController.service;嵌套异常是org.springframework.beans.factory.BeanCreationException：创建名为'schedulerServiceImpl'的bean时出错：注入自动连接的依赖项失败;嵌套异常是org.springframework.beans.factory.BeanCreationException：无法自动装配字段：public com.demo.scheduler.dao.SchedulerDAO com.demo.scheduler.service.SchedulerServiceImpl.schedulerDAO;嵌套异常是org.springframework.beans.factory.BeanCreationException：创建名为'hibernateDAO'的bean时出错：注入自动连接的依赖项失败;嵌套异常是org.springframework.beans.factory.BeanCreationException：无法自动装配字段：private org.hibernate.SessionFactory com.demo.scheduler.dao.HibernateDAO.sessionFactory;嵌套异常是org.springframework.beans.factory.BeanCreationException：在ServletContext资源[/WEB-INF/applicationContext.xml]中定义名为'sessionFactory'的bean时出错：init方法的调用失败;嵌套异常是位于org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean（AbstractAutowireCapableBeanFactory.java:1106）的org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues（AutowiredAnnotationBeanPostProcessor.java:287）中的java.lang.NullPointerException . org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:517）位于org.springframework.beans.factory的org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（AbstractAutowireCapableBeanFactory.java:456） .support.AbstractBeanFactory $ 1.getObject（AbstractBeanFactory.java:294）org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton（DefaultSingletonBeanRegistry.java:225）org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean（在org.springframework.beans.factory.sup上的AbstractBeanFactory.java:291） org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization（AbstractApplicationContext.java：）中的org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons（DefaultListableBeanFactory.java:607）中的port.AbstractBeanFactory.getBean（AbstractBeanFactory.java:193）： 925）org.springframework.context.support.AbstractApplicationContext.refresh（AbstractApplicationContext.java:472）atg.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext（FrameworkServlet.java:631）org.springframework.web.servlet.FrameworkServlet .orgateWebApplicationContext（FrameworkServlet.java:588）位于org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext（FrameworkServlet.java:645）org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext（FrameworkServlet.java:508）org . org.springframework上的springframework.web.servlet.FrameworkServlet.initServletBean（FrameworkServlet.java:449） . web.servlet.HttpServletBean.init（HttpServletBean.java:133），位于org.apache.catalina.core.StandardWrapper.loadServlet（StandardWrapper.java:1161）的javax.servlet.GenericServlet.init（GenericServlet.java:212） .apache.catalina.core.StandardWrapper.allocate（StandardWrapper.java:806）org.apache.catalina.core.StandardWrapperValve.invoke（StandardWrapperValve.java:129）org.apache.catalina.core.StandardContextValve.invoke（StandardContextValve） .java：175）org.apache.catalina.core.StandardHostValve.invoke（StandardHostValve.java:128）org.apache.catalina.valves.ErrorReportValve.invoke（ErrorReportValve.java:102）org.apache.catalina . core.tandardEngineValve.invoke（StandardEngineValve.java:109）org.apache.catalina.connector.CoyoteAdapter.service（CoyoteAdapter.java:263）org.apache.coyote.http11.Http11Processor.process（Http11Processor.java:844） at org.apache.coyote.http11.Http11Protocol $ Http11ConnectionHandler.process（Http11Protocol.java:584）at org.apache.tomcat.util.net.JIoEndpoi nt $ Worker.run（JIoEndpoint.java:447）at java.lang.Thread.run（Thread.java:662）引起：org.springframework.beans.factory.BeanCreationException：无法自动装配字段：private com.demo . scheduler.service.SchedulerService com.demo.scheduler.controller.SchedulerController.service;嵌套异常是org.springframework.beans.factory.BeanCreationException：创建名为'schedulerServiceImpl'的bean时出错：注入自动连接的依赖项失败;嵌套异常是org.springframework.beans.factory.BeanCreationException：无法自动装配字段：public com.demo.scheduler.dao.SchedulerDAO com.demo.scheduler.service.SchedulerServiceImpl.schedulerDAO;嵌套异常是org.springframework.beans.factory.BeanCreationException：创建名为'hibernateDAO'的bean时出错：注入自动连接的依赖项失败;嵌套异常是org.springframework.beans.factory.BeanCreationException：无法自动装配字段：private org.hibernate.SessionFactory com.demo.scheduler.dao.HibernateDAO.sessionFactory;嵌套异常是org.springframework.beans.factory.BeanCreationException：在ServletContext资源[/WEB-INF/applicationContext.xml]中定义名为'sessionFactory'的bean时出错：init方法的调用失败;嵌套异常是org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor上的java.lang.NullPointerException $ autowiredFieldElement.inject（AutowiredAnnotationBeanPostProcessor.java:513）org.springframework.beans.factory.annotation.InjectionMetadata.inject（InjectionMetadata.java： 92）at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues（AutowiredAnnotationBeanPostProcessor.java:284）... 29更多引起：org.springframework.beans.factory.BeanCreationException：创建名为'schedulerServiceImpl'的bean时出错：注入自动连接的依赖项失败;嵌套异常是org.springframework.beans.factory.BeanCreationException：无法自动装配字段：public com.demo.scheduler.dao.SchedulerDAO com.demo.scheduler.service.SchedulerServiceImpl.schedulerDAO;嵌套异常是org.springframework.beans.factory.BeanCreationException：创建名为'hibernateDAO'的bean时出错：注入自动连接的依赖项失败;嵌套异常是org.springframework.beans.factory.BeanCreationException：无法自动装配字段：private org.hibernate.SessionFactory com.demo.scheduler.dao.HibernateDAO.sessionFactory;嵌套异常是org.springframework.beans.factory.BeanCreationException：在ServletContext资源[/WEB-INF/applicationContext.xml]中定义名为'sessionFactory'的bean时出错：init方法的调用失败;嵌套异常是位于org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean（AbstractAutowireCapableBeanFactory.java:1106）的org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues（AutowiredAnnotationBeanPostProcessor.java:287）中的java.lang.NullPointerException . org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:517）位于org.springframework.beans.factory的org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（AbstractAutowireCapableBeanFactory.java:456） .support.AbstractBeanFactory $ 1.getObject（AbstractBeanFactory.java:294）org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton（DefaultSingletonBeanRegistry.java:225）org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean（在org.springframework.beans.factory.sup上的AbstractBeanFactory.java:291） port.AbstractBeanFactory.getBean（AbstractBeanFactory.java:197）org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean（AbstractBeanFactory.java:269）at org.springframework.beans.factory.support.AbstractBeanFactory.getBean（AbstractBeanFactory . java：193）org.springframework上的org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates（DefaultListableBeanFactory.java:871）org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency（DefaultListableBeanFactory.java:813） .beans.factory.support.DefaultListableBeanFactory.resolveDependency（DefaultListableBeanFactory.java:730）at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor $ AutowiredFieldElement.inject（AutowiredAnnotationBeanPostProcessor.java:485）... 31更多引起：org . springframework.beans.factory.BeanCreationException：无法自动装配字段：public com.demo.scheduler.dao.SchedulerDAO com.demo.scheduler.service.Sche dulerServiceImpl.schedulerDAO;嵌套异常是org.springframework.beans.factory.BeanCreationException：创建名为'hibernateDAO'的bean时出错：注入自动连接的依赖项失败;嵌套异常是org.springframework.beans.factory.BeanCreationException：无法自动装配字段：private org.hibernate.SessionFactory com.demo.scheduler.dao.HibernateDAO.sessionFactory;嵌套异常是org.springframework.beans.factory.BeanCreationException：创建在ServletContext资源[/WEB-INF/applicationContext.xml]中定义名为'sessionFactory'的bean时出错：调用init方法失败;嵌套异常是org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor上的java.lang.NullPointerException $ autowiredFieldElement.inject（AutowiredAnnotationBeanPostProcessor.java:513）org.springframework.beans.factory.annotation.InjectionMetadata.inject（InjectionMetadata.java： 92）at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues（AutowiredAnnotationBeanPostProcessor.java:284）... 44更多引起：org.springframework.beans.factory.BeanCreationException：创建名为'hibernateDAO'的bean时出错：注入自动连接的依赖项失败;嵌套异常是org.springframework.beans.factory.BeanCreationException：无法自动装配字段：private org.hibernate.SessionFactory com.demo.scheduler.dao.HibernateDAO.sessionFactory;嵌套异常是org.springframework.beans.factory.BeanCreationException：在ServletContext资源[/WEB-INF/applicationContext.xml]中定义名为'sessionFactory'的bean时出错：init方法的调用失败;嵌套异常是位于org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean（AbstractAutowireCapableBeanFactory.java:1106）的org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues（AutowiredAnnotationBeanPostProcessor.java:287）中的java.lang.NullPointerException . org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:517）位于org.springframework.beans.factory的org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（AbstractAutowireCapableBeanFactory.java:456） .support.AbstractBeanFactory $ 1.getObject（AbstractBeanFactory.java:294）org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton（DefaultSingletonBeanRegistry.java:225）org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean（在org.springframework.beans.factory.sup上的AbstractBeanFactory.java:291） org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency（DefaultListableBeanFactory）中的org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates（DefaultListableBeanFactory.java:871）中的port.AbstractBeanFactory.getBean（AbstractBeanFactory.java:193） . java：813）org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency（DefaultListableBeanFactory.java:730）at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor $ AutowiredFieldElement.inject（AutowiredAnnotationBeanPostProcessor.java:485）.. .46更多引起：org.springframework.beans.factory.BeanCreationException：无法自动装配字段：private org.hibernate.SessionFactory com.demo.scheduler.dao.HibernateDAO.sessionFactory;嵌套异常是org.springframework.beans.factory.BeanCreationException：在ServletContext资源[/WEB-INF/applicationContext.xml]中定义名为'sessionFactory'的bean时出错：init方法的调用失败;嵌套异常是org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor上的java.lang.NullPointerException $ autowiredFieldElement.inject（AutowiredAnnotationBeanPostProcessor.java:513）org.springframework.beans.factory.annotation.InjectionMetadata.inject（InjectionMetadata.java： 92）at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues（AutowiredAnnotationBeanPostProcessor.java:284）... 57更多引起：org.springframework.beans.factory.BeanCreationException：创建名为'sessionFactory'的bean时出错在ServletContext资源[/WEB-INF/applicationContext.xml]中：init方法的调用失败;嵌套异常是org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean（AbstractAutowireCapableBeanFactory.java:1455）中的java.lang.NullPointerException，位于org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:519）在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456）org.springframework.beans.factory.support.AbstractBeanFactory $ 1.getObject（AbstractBeanFactory.java:294）org.springframework.beans . or.s.springframework.beans.factory.support.AbstractBeanFactory . AbstractBeanFactory.java:193）org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidate org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency（DefaultListableBeanFactory.java:813）中的s（DefaultListableBeanFactory.java:871）org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency（DefaultListableBeanFactory.java:730）at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor $ AutowiredFieldElement.inject（AutowiredAnnotationBeanPostProcessor.java:485）