BeanNotOfRequiredTypeException由于自动绑定的字段

• Z时代
• 2024-01-10
• 分类：问答

我还是Spring MVC的新手，在构建测试项目时，我从Tomcat日志中得到了以下消息：

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)

我有两个接口，分别为用户和管理员提供Rolle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

<?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>

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

我在控制器中使用AdminServiceImpl：

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";
    } ....

回答：

您必须在代码中的某处AdminServiceImpl像这样自动装配：

@Autowired
private AdminServiceImpl adminService;

要么几乎不依赖于接口：

@Autowired
private AdminService adminService;

或启用的CGLIB代理。

以上是 BeanNotOfRequiredTypeException由于自动绑定的字段 的全部内容， 来源链接： utcz.com/qa/403155.html