BeanNotOfRequiredTypeException由于自动连接领域(BeanNotOfRe

我还是新的Spring MVC和同时建立我的测试项目，我从Tomcat日志中这样的信息：

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$1.getObject(AbstractBeanFactory.java:294)
    ...
Caused by: org.springframework.beans.factory.BeanNotOfRequiredTypeException: Bean named 'adminService' must be of type [employee.service.impl.AdminServiceImpl], but was actually of type [$Proxy52]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:360)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)

我有用户和管理员与有两种接口罗尔服务：

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);
}

这是AdminServiceImpl：

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;
    }
}

这是applicationContext.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: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>

请告诉我什么是这个bean的名称问题，据我所知，是AOP的问题：

Bean named 'adminService' must be of type [employee.service.impl.AdminServiceImpl], but was actually of type [$Proxy52]

我该如何解决？

我用AdminServiceImpl在控制器：

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";
    } ....

Answer 1:

某处在您的代码必须自动装配AdminServiceImpl这样的：

@Autowired
private AdminServiceImpl adminService;

无论是勉强依靠界面：

@Autowired
private AdminService adminService;

或启用CGLIB代理。

类似的问题

• 自动装配的Spring bean是不是代理
• 在一个非singleton bean春代理投固定BeanNotOfRequiredTypeException？
• 获得春天错误“豆命名为‘X’的类型必须为[Y]，但实际上类型[$代理]”在詹金斯
• 原始界面在Spring AOP引进丢失

Answer 2:

使用界面AdminService而不是工具。

这个错误造成的注释@Transactional ， Spring使一个代理AdminService在Runtime 。

Answer 3:

当你的服务类实现一些接口，默认情况下弹簧采用代理的JDK，这就是为什么你得到这个错误，这样就可以解决这个问题是否使用@Autowired在接口或使CGLIB代理 。

我解决了这个问题在我的Spring应用程序上下文使用代理-target-class属性使CGLIB代理

<tx:annotation-driven proxy-target-class="true"
        transaction-manager="transactionManager" />

Answer 4:

我发现很多的问题与此类似，对于我的问题，谷歌搜索时。 然而，在我的情况我已经使用的接口。 所以我想这可能对他人有所帮助：

此异常也可能出现，如果你有两个豆具有相同的名称！

在我的情况我在applicationContext.xml中有额外的bean配置。 问题出现后，我合并的两个应用程序。 第二一项所定义的@Resource及其成员变量名匹配的第一个应用程序的Bean名称，如上所述。 当然，第一应用程序的bean的配置不适合用于经由包括在豆@Resource由第二应用。

Answer 5:

我也面临着同样的问题，但我解决了以下解决方法的问题：

请更换接口实现类。 例如：

class Abc
{
 @Autowire
 private Boy boy // remove @BoyImpl

.............
...................
}

Answer 6:

我也见过，当执行单元测试的问题

我创建了一个模拟服务来实现真正的服务来覆盖一些方法来实现轻松测试一些用户案例

@Component
public static class FooServiceImplMock extends FooServiceImpl {
    @Override
    protected void bar() {
        // do some specific loginc here 
    }
}

但是，当执行测试方法

@Autowired
private Foo1ServiceImplMock foo1ServiceImplMock;

我得到了以下错误

Caused by: org.springframework.beans.factory.BeanNotOfRequiredTypeException: Bean named 'fooServiceImplTest.FooServiceImplMock' is expected to be of type 'com.foo.business.impl.FooServiceImplTest$FooServiceImplMock' but was actually of type 'com.sun.proxy.$Proxy97'

原因：

有在FooServiceImpl方法中使用@Cacheable

@Cacheable("eventTypes")

而从EnableCaching的javadoc的，我知道

org.springframework.cache.annotation.EnableCaching 
boolean proxyTargetClass()

Indicate whether subclass-based (CGLIB) proxies are to be created as opposed to standard Java interface-based proxies. The default is false.

所以，解决的方式是明确的Spring应用程序contenxt指定使用CGLIB

 <cache:annotation-driven proxy-target-class="true"/>

Answer 7:

我也有这个问题，一些@SpringBootTest是在测试端点类。 端点对具有DB服务的依赖@Transactional上的一些方法。

由于的@Transactional ，春季截获并创建一个代理类，所以斯波克（或JUnit的）将难以注入正确的模拟。

我的解决方法是推动DB服务下一层，并有其周围不受此中间层纯斯波克测试。

文章来源: BeanNotOfRequiredTypeException due to autowired fields