我会感到困惑。我试图让 Hibernate 与 Spring 一起工作，但我无法摆脱 BeanCreationException。请帮我。我是 Spring 新手（也是 Hibernate）。
问题是在控制器中引起的，该控制器具有使用 @Autowired 注释的私有属性 userService。
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'testController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.aerts.service.UserService com.aerts.controller.TestController.userService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.aerts.service.UserService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
我真的很困惑，请帮助我。
这是我的根上下文.xml：
<?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:jdbc="http://www.springframework.org/schema/jdbc"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:task="http://www.springframework.org/schema/task"
xmlns:util="http://www.springframework.org/schema/util"
xmlns:context="http://www.springframework.org/schema/context"
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.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd
http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd">
<tx:annotation-driven />
<context:component-scan base-package="com.aerts.controller">
</context:component-scan>
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"
p:location="classpath:application.properties" />
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://....."/>
<property name="username" value="....."/>
<property name="password" value="....."/>
<property name="initialSize" value="5"/>
<property name="maxActive" value="20"/>
</bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.hbm2ddl.auto">create</prop>
</props>
</property>
</bean>
<bean id="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
这是我的 User.java
package com.aerts.domain;
import java.util.Date;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;
@Entity
@Table(name="User")
public class User {
@Id
@GeneratedValue()
@Column(name="id")
int id;
@Column(name="gender")
private Gender gender;
@Column(name="birthdate")
private Date birthdate;
@Column(name="firstname")
private String firstname;
@Column(name="surname")
private String surname;
public Gender getGender() {
return gender;
}
public void setGender(Gender gender) {
this.gender = gender;
}
public Date getBirthdate() {
return birthdate;
}
public void setBirthdate(Date age) {
this.birthdate = age;
}
public String getFirstname() {
return firstname;
}
public void setFirstname(String firstname) {
this.firstname = firstname.trim();
}
public String getSurname() {
return surname;
}
public void setSurname(String surname) {
this.surname = surname.trim();
}
}
我的 UserDaoImpl：
package com.aerts.dao;
import java.util.ArrayList;
import java.util.List;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import org.springframework.stereotype.Service;
import com.aerts.domain.User;
@Service
public class UserDaoImpl implements UserDao{
@Autowired
private SessionFactory sessionFactory;
@Override
public void addUser(User user) {
sessionFactory.getCurrentSession().save(user);
}
@Override
public List<User> listUser() {
return sessionFactory.getCurrentSession().createQuery("from User")
.list();
}
@Override
public void removeUser(int id) {
User user = (User) sessionFactory.getCurrentSession().get(
User.class, id);
if (user != null) {
sessionFactory.getCurrentSession().delete(user);
}
}
@Override
public void updateUser(User user) {
sessionFactory.getCurrentSession().update(user);
}
}
还有我的 UserServiceImpl：
package com.aerts.service;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import com.aerts.dao.UserDao;
import com.aerts.domain.User;
@Service
public class UserServiceImpl implements UserService {
@Autowired
private UserDao userDao;
@Override
@Transactional
public void addUser(User user) {
userDao.addUser(user);
}
@Override
@Transactional
public List<User> listUser() {
return userDao.listUser();
}
@Override
@Transactional
public void removeUser(int id) {
userDao.removeUser(id);
}
@Override
@Transactional
public void updateUser(User user) {
userDao.updateUser(user);
}
}
如果有人可以帮助我，我将不胜感激，我会绝望的......