Question

我对此并不陌生，正在尝试创建一个Spring5 MVC / Hibernate5 Web应用程序，但是当我启动Tomcat时出现以下错误：

最初的问题与事务管理器有关，在添加事务管理器bean定义之前，该应用程序启动正常，但失败并显示一条错误消息，提示它无法创建事务线程。

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'customerController' defined in ServletContext resource [/WEB-INF/spring/store.xml]: Initialization of bean failed; nested exception is org.springframework.beans.ConversionNotSupportedException: Failed to convert property value of type 'com.sun.proxy.$Proxy210 implementing com.store.service.CustomerService,java.io.Serializable,org.springframework.aop.SpringProxy,org.springframework.aop.framework.Advised,org.springframework.core.DecoratingProxy' to required type 'com.store.service.CustomerServiceImpl' for property 'customerService'; nested exception is java.lang.IllegalStateException: Cannot convert value of type 'com.sun.proxy.$Proxy210 implementing com.store.service.CustomerService,java.io.Serializable,org.springframework.aop.SpringProxy,org.springframework.aop.framework.Advised,org.springframework.core.DecoratingProxy' to required type 'com.store.service.CustomerServiceImpl' for property 'customerService': no matching editors or conversion strategy found

我的web.xml：

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xmlns="http://java.sun.com/xml/ns/javaee" 
         xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
                             http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
                             id="WebApp_ID" version="2.5">

        <description>
            Configuration file for the Store Application
        </description>

        <listener>
            <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
        </listener>

        <context-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/store-servlet.xml</param-value>
        </context-param>

        <servlet>
          <servlet-name>store</servlet-name>
          <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>        
          <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value></param-value>
          </init-param>
          <load-on-startup>1</load-on-startup>
        </servlet>

        <servlet-mapping>
          <servlet-name>store</servlet-name>
          <url-pattern>/</url-pattern>
        </servlet-mapping>


</web-app>

我的Store-servlet.xml：

<beans xmlns = "http://www.springframework.org/schema/beans"
   xmlns:context = "http://www.springframework.org/schema/context"
   xmlns:mvc="http://www.springframework.org/schema/mvc"
   xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
   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/mvc 
           http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <context:component-scan base-package = "com.store.controller" />
    <context:annotation-config/>

    <bean class = "org.springframework.web.servlet.view.InternalResourceViewResolver">
      <property name = "prefix" value = "/WEB-INF/jsp/" />
      <property name = "suffix" value = ".jsp" />
    </bean>

    <mvc:annotation-driven/>

    <mvc:resources mapping="/resources/**" location="/resources/"/>

    <import resource="/spring/store.xml" />
    <import resource="/hibernate/hibernate-configuration.xml" />

</beans>

我的休眠配置：

<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/mvc"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd">

    <beans:bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
        destroy-method="close">
        <beans:property name="driverClassName" value="org.mariadb.jdbc.Driver" />
        <beans:property name="url" value="jdbc:mariadb://localhost:3306/store" />
        <beans:property name="username" value="keeper" />
        <beans:property name="password" value="keeper123" />
    </beans:bean>

    <!-- Hibernate 5 SessionFactory Bean definition -->
    <beans:bean id="hibernate5AnnotatedSessionFactory"
        class="org.springframework.orm.hibernate5.LocalSessionFactoryBean" >
        <beans:property name="dataSource" ref="dataSource" />
        <beans:property name="annotatedClasses">
            <beans:list>
                <beans:value>com.store.vo.Make</beans:value>
                <beans:value>com.store.vo.Model</beans:value>
                <beans:value>com.store.vo.Car</beans:value>
                <beans:value>com.store.vo.Customer</beans:value>
                <beans:value>com.store.vo.CustomerCar</beans:value>
            </beans:list>
        </beans:property>
        <beans:property name="hibernateProperties">
            <beans:props>
                <beans:prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</beans:prop>
                <beans:prop key="hibernate.show_sql">true</beans:prop>
            </beans:props>
        </beans:property>
    </beans:bean>

    <beans:bean id="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager">
        <beans:property name="sessionFactory" ref="hibernate5AnnotatedSessionFactory" />
    </beans:bean>

    <tx:annotation-driven transaction-manager="transactionManager"/>


</beans:beans>

Answer 1

我想在您的CustomerController类中，您不是注入接口，而是注入了CustomerService的实现，如下所示：

public class CustomerController {

    @Autowired
    private CustomerServiceImpl customerService;

}

具体的类是代理，因此您应该将注入点指定为接口：

public class CustomerController {

    @Autowired
    private CustomerService customerService;

}

Answer 2

错误是我将具体类注入到Service类中，但是Service类还具有具体类而不是接口的设置器

指定事务管理器Bean后找不到匹配的编辑器或转换策略

2 个答案: