BeanNotOfRequiredTypeException
je suis encore nouveau à Spring MVC et tout en construisant mon projet d'essai, j'ai reçu ce message de Tomcat logs:
SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'divisionController': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanNotOfRequiredTypeException: Bean named 'adminService' must be of type [employee.service.impl.AdminServiceImpl], but was actually of type [$Proxy52]
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:307)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1106)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory.getObject(AbstractBeanFactory.java:294)
...
Caused by: org.springframework.beans.factory.BeanNotOfRequiredTypeException: Bean named 'adminService' must be of type [employee.service.impl.AdminServiceImpl], but was actually of type [$Proxy52]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:360)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
j'ai deux services rolle pour l'utilisateur et l'administrateur avec des interfaces:
package employee.service;
import employee.model.EmployeeDiv;
import employee.model.EmployeeInfo;
import employee.model.UserInfo;
import java.util.List;
/**
*
* @author serge
*/
public interface AdminService extends UserService {
// !!!! for register & udate of Employee use String type birthday !!!!
/*
* Employee
*/
public EmployeeInfo registerEmployee(EmployeeInfo employeeInfo);
public EmployeeInfo updateEmployee(EmployeeInfo employeeInfo);
public EmployeeInfo findEmployeeByID(Integer id);
/*
* Division
*/
public EmployeeDiv registerDivision(EmployeeDiv division);
public EmployeeDiv updateDivision(EmployeeDiv division);
public List<EmployeeDiv> findAllDivisions();
public List<EmployeeDiv> findDivisionsByName(EmployeeDiv division);
public EmployeeDiv findDivisionsById(Integer id);
/*
* Login
*/
public UserInfo registerUser(UserInfo user);
public UserInfo updateUser(UserInfo user);
public List<UserInfo> findAllUsesrs();
public List<UserInfo> findUsesrByLogin(UserInfo user);
public UserInfo findUsesrById(Integer id);
}
ici Administrserviceimpl:
package employee.service.impl;
import employee.DAO.EmployeeDivDAO;
import employee.DAO.EmployeeInfoDAO;
import employee.DAO.UserDAO;
import employee.model.EmployeeDiv;
import employee.model.EmployeeInfo;
import employee.model.UserInfo;
import employee.service.AdminService;
import employee.validation.ParsingDate;
import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.access.annotation.Secured;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import java.util.List;
/**
* @author serge
*
* Admin level
*
* Service for processing employee, divisions, userslogin
*/
//@Repository("adminService")
@Service("adminService")
@Transactional
public class AdminServiceImpl extends UserServiceImpl implements AdminService {
protected static Logger adminLogger = Logger.getLogger("service");
private EmployeeDivDAO emplDivDAO;
private UserDAO userDAO;
private EmployeeInfoDAO emplInfoDAO;
@Autowired
@Override
public void setEmployeeDao(EmployeeInfoDAO emplInfoDAO) {
this.emplInfoDAO = emplInfoDAO;
}
@Autowired
public void setEmployeeDao(EmployeeDivDAO emplDivDAO) {
this.emplDivDAO = emplDivDAO;
}
@Autowired
public void setUserDao(UserDAO userDAO) {
this.userDAO = userDAO;
}
public AdminServiceImpl() {
initTestEmployee();
}
/**
* Initialize EmployeeInfo test
*/
@Transactional
@Secured("ROLE_ADMIN")
private EmployeeInfo initTestEmployee() {
adminLogger.debug("saving testEmployee");
EmployeeInfo employeeInfo = new EmployeeInfo();
ParsingDate date = new ParsingDate();
employeeInfo.setFirstName("Petr");
employeeInfo.setLastName("Ivanenko");
employeeInfo.setEmpDiv("second");
employeeInfo.setBirthdate(date.parseDate("1981-10-03"));
employeeInfo.setSalary(3500);
employeeInfo.setActive(true);
return employeeInfo;
}
/**
* registrating new Employee Information
*
* @return EmployeeInfo object
*/
@Override
@Transactional
@Secured("ROLE_ADMIN")
public EmployeeInfo registerEmployee(EmployeeInfo employeeInfo) {
adminLogger.debug("registrating new Employee");
try {
emplInfoDAO.save(employeeInfo);
} catch (NullPointerException e) {
}
return employeeInfo;
}
/**
* updating Employee Information
*
* @return EmployeeInfo object
*/
@Override
@Transactional
@Secured("ROLE_ADMIN")
public EmployeeInfo updateEmployee(EmployeeInfo employeeInfo) {
adminLogger.debug("updating Employee with id: " + employeeInfo.getId());
try {
emplInfoDAO.update(employeeInfo);
} catch (NullPointerException e) {
}
return employeeInfo;
}
/**
* Retrieving Employee Information by id
*
* @return EmployeeInfo object
*/
@Override
@Transactional
@Secured("ROLE_ADMIN")
public EmployeeInfo findEmployeeByID(Integer id) {
adminLogger.debug("Retrieving Employee with id= " + id);
EmployeeInfo employeeInfo = new EmployeeInfo();
employeeInfo.setId(id);
emplInfoDAO.find(employeeInfo);
return employeeInfo;
}
/**
* registrating new Employee Division
*
* @return EmployeeDiv object
*/
@Override
@Transactional
@Secured("ROLE_ADMIN")
public EmployeeDiv registerDivision(EmployeeDiv division) {
adminLogger.debug("registrating new Division");
try {
emplDivDAO.save(division);
} catch (NullPointerException e) {
}
return division;
}
/**
* updating Employee Division
*
* @return EmployeeDiv object
*/
@Override
@Transactional
@Secured("ROLE_ADMIN")
public EmployeeDiv updateDivision(EmployeeDiv division) {
adminLogger.debug("updating Division with id: " + division.getId());
try {
emplDivDAO.update(division);
} catch (NullPointerException e) {
}
return division;
}
/**
* Retrieving all Employee Divisions
*
* @return List of EmployeeDiv objects
*/
@Override
@Transactional
@Secured("ROLE_ADMIN")
public List<EmployeeDiv> findAllDivisions() {
adminLogger.debug("Retrieving all divisions");
return emplDivDAO.findAll();
}
/**
* Retrieving all Employee Divisions by name
*
* @return List of EmployeeDiv objects
*/
@Override
@Transactional
@Secured("ROLE_ADMIN")
public List<EmployeeDiv> findDivisionsByName(EmployeeDiv division) {
String empDiv = "empDiv";
adminLogger.debug("Retrieving Divisions by name: " + division.getEmpDiv());
return emplDivDAO.findAllByParam(empDiv, division.getEmpDiv());
}
/**
* Retrieving Employee Divisions by id
*
* @return EmployeeDiv object
*/
@Override
@Transactional
@Secured("ROLE_ADMIN")
public EmployeeDiv findDivisionsById(Integer id) {
adminLogger.debug("Retrieving Division with id= " + id);
EmployeeDiv employeeDiv = new EmployeeDiv();
employeeDiv.setId(id);
emplInfoDAO.find(employeeDiv);
return employeeDiv;
}
/**
* registrating new User Information
*
* @return UserInfo object
*/
@Override
@Transactional
@Secured("ROLE_ADMIN")
public UserInfo registerUser(UserInfo user) {
adminLogger.debug("registrating new User");
try {
userDAO.save(user);
} catch (NullPointerException e) {
}
return user;
}
/**
* updating new User Information
*
* @return UserInfo object
*/
@Override
@Transactional
@Secured("ROLE_ADMIN")
public UserInfo updateUser(UserInfo user) {
adminLogger.debug("updating User with id: " + user.getId());
try {
userDAO.update(user);
} catch (NullPointerException e) {
}
return user;
}
/**
* retriviting all Users
*
* @return List of UserInfo objects
*/
@Override
@Transactional
@Secured("ROLE_ADMIN")
public List<UserInfo> findAllUsesrs() {
adminLogger.debug("Retrieving all Users");
return userDAO.findAll();
}
/**
* retriving all Users by login
*
* @return List of UserInfo objects
*/
@Override
@Transactional
@Secured("ROLE_ADMIN")
public List<UserInfo> findUsesrByLogin(UserInfo user) {
String login = "login";
adminLogger.debug("Retrieving User with login: " + login);
return userDAO.findAllByParam(login, user.getLogin());
}
/**
* Retrieving Employee Divisions by id
*
* @return EmployeeDiv object
*/
@Override
@Transactional
@Secured("ROLE_ADMIN")
public UserInfo findUsesrById(Integer id) {
adminLogger.debug("Retrieving Division with id= " + id);
UserInfo userInfo = new UserInfo();
userInfo.setId(id);
emplInfoDAO.find(userInfo);
return userInfo;
}
}
c'est applicationContext.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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd">
<!-- Activates annotations -->
<context:annotation-config />
<!-- Scans for annotated components in base-package-->
<context:component-scan base-package="employee" />
<bean class="employee.service.impl.AdminServiceImpl"/>
<bean class="employee.service.impl.UserServiceImpl"/>
<!--bean class="employee.DAO.impl.EmployeeInfoDAOImpl"/>
<bean class="employee.DAO.impl.EmployeeDivDAOImpl"/>
<bean class="employee.DAO.impl.UserDAOImpl"/-->
<!-- for Spring Jackson JSON support -->
<mvc:annotation-driven/>
<!-- Shared Hibernate SessionFactory in a Spring application context. -->
<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<!--property name="dataSource">
<ref bean="dataSource"/>
</property-->
<property name="annotatedClasses">
<list>
<value>employee.model.UserInfo</value>
<value>employee.model.EmployeeInfo</value>
<value>employee.model.EmployeeDiv</value>
</list>
</property>
<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">update</prop>
</props>
</property>
</bean>
<!-- for database, imports the properties from database.properties -->
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
</bean>
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location" value="classpath:database.properties"/>
</bean>
</beans>
s'il vous Plaît me dire quel est le problème avec ce bean nom, je comprends que est-ce que le problème AOP:
Bean named 'adminService' must be of type [employee.service.impl.AdminServiceImpl], but was actually of type [$Proxy52]
comment je peux résoudre ce problème?
j'utilise AdminServiceImpl dans les Controllers:
package employee.controller;
import employee.model.EmployeeDiv;
import employee.service.impl.AdminServiceImpl;
import org.apache.log4j.Logger;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import javax.annotation.Resource;
/**
* @author serge
*
* Handles and retrieves division related requests
*/
@Controller
@RequestMapping("/division")
public class DivisionController {
protected static Logger logger = Logger.getLogger("controller");
@Resource(name = "adminService")
private AdminServiceImpl adminService;
/**
* Handles and retrieves a /WEB-INF/jsp/divisionpage.jsp
*
* containing all division
*
* @return the name of the JSP page
*/
@RequestMapping(method = RequestMethod.GET)
public String getAllPage(Model model) {
logger.debug("Received request to show all division page");
// Retrieve all division and attach to model
model.addAttribute("division", adminService.findAllDivisions());
return "divisionpage";
} ....
5 réponses
quelque part dans votre code vous devez être autowiring AdminServiceImpl
comme ceci:
@Autowired
private AdminServiceImpl adminService;
soit dépendent à peine de l'interface:
@Autowired
private AdminService adminService;
ou activé CGLIB procurations.
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- Arriver le Printemps Erreur "Bean nommé" x " doit être de type [y], mais qui était en fait de type [$Proxy]" Jenkins
- interface d'Origine est perdue dans Spring AOP introduction
utiliser l'interface AdminService
plutôt que les instruments.
cette erreur causée par L'Annotation @Transactional
, Spring
fait un proxy pour AdminService
à Runtime
.
lorsque votre classe de service implémente une interface, spring par défaut prend proxy par JDK, c'est pourquoi vous obtenez cette erreur, donc vous pouvez résoudre ce problème que ce soit en utilisant @Autowired sur l'interface ou en activant le cglib proxy .
j'ai résolu ce problème en activant le proxy CGLIB en utilisant proxy-target-class attribut dans mon contexte d'application de printemps
<tx:annotation-driven proxy-target-class="true"
transaction-manager="transactionManager" />
j'ai fait face au même problème mais j'ai résolu le problème avec la solution suivante:
veuillez remplacer votre classe d'implémentation par interface. Par exemple:
class Abc
{
@Autowire
private Boy boy // remove @BoyImpl
.............
...................
}
j'ai trouvé beaucoup de questions similaires à celle-ci, lors de la recherche google pour mon problème. Cependant, dans mon cas, j'ai déjà utilisé une interface. J'ai donc pensé que cela pourrait être utile pour d'autres:
Cette exception pourrait également apparaître, si vous avez deux haricots avec le même nom!
dans mon cas, j'avais une configuration bean supplémentaire dans mon contexte d'application.XML. Le problème est apparu après que j'ai fusionné deux applications. Le second définit un @Resource
et son nom de membre-variable correspondait au nom de haricot de la première application, mentionnée ci-dessus. Bien sûr, la configuration du haricot de la première application ne convenait pas pour le haricot inclus via @Resource
par la deuxième application.