spring - 收到错误Bean类[..]的无效属性'packagesToScan'。 Bean属性“packagesToScan”不可写或具有无效的setter方法

我收到以下错误


引起原因：org.springframework.beans.NotWritablePropertyException：无效
bean的属性“ packagesToScan”
类[org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean]：Bean
属性“ packagesToScan”不可写或具有无效的setter方法。是否
setter的参数类型与getter的返回类型匹配吗？\


我正在使用spring3.2。使用MAven添加依赖项。一切似乎还好。为什么我收到此错误。这是我的档案

<?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:jdbc="http://www.springframework.org/schema/jdbc"
xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
                    http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
                    http://www.springframework.org/schema/context
                    http://www.springframework.org/schema/context/spring-context-3.2.xsd
                    http://www.springframework.org/schema/jdbc
                    http://www.springframework.org/schema/jdbc/spring-jdbc-3.2.xsd
                    http://www.springframework.org/schema/data/jpa
                    http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
                    http://www.springframework.org/schema/tx
                    http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">

....
<bean id="emf" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
    <property name="dataSource" ref="dataSource" />
    <property name="jpaVendorAdapter">
        <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" />
    </property>
    <property name="packagesToScan" value="pk.training.basitMahmood.domain"/>
    <property name="jpaProperties">
        <props>
            <prop key="hibernate.dialect">org.hibernate.dialect.H2Dialect</prop>
            <prop key="hibernate.max_fetch_depth">3</prop>
            <prop key="hibernate.jdbc.fetch_size">50</prop>
            <prop key="hibernate.jdbc.batch_size">10</prop>
            <prop key="hibernate.show_sql">true</prop>
        </props>
    </property>
</bean>

<context:annotation-config/>

.....

</beans>

谢谢

最佳答案

不知道您的packagesToScan？
希望您使用@Table, @Entity, @column ...之类的注释
您不需要扫描任何软件包。
当您尝试填充实体时，休眠将读取注释
我的答案是删除该行

更新
config.dao.xml

    <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
    <property name="persistenceXmlLocation" value="classpath:./META-INF/persistence.xml" />
    <property name="dataSource" ref="dataSource" />

    <property name="jpaVendorAdapter">
        <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
            <property name="databasePlatform" value="org.hibernate.dialect.H2Dialect" />
            <property name="showSql" value="true" />
            <property name="generateDdl" value="false" />
        </bean>
    </property>
    <property name="jpaProperties">
        <props>
            <prop key="hibernate.max_fetch_depth">3</prop>
            <prop key="hibernate.jdbc.fetch_size">50</prop>
            <prop key="hibernate.jdbc.batch_size">10</prop>
        </props>
    </property>
</bean>

persitence.xml

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.0"
    xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">

    <persistence-unit name="default" transaction-type="RESOURCE_LOCAL">

    </persistence-unit>

</persistence>