使用SpringMVC报错 Error creating bean with name 'conversionService' defined in class path resource [springmvc.xml]

Could not instantiate bean class [org.springframework.core.convert.support.ConversionServiceFactory]:

Error creating bean with name '(inner bean)': Cannot resolve reference to bean 'conversionService' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'conversionService' defined in class path resource [springmvc.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.core.convert.support.ConversionServiceFactory]: Is it an abstract class?; nested exception is java.lang.InstantiationException。

仔细检查是springmvc.xml中的bean中的class引入错误的类了。比如原来是这样的：

<bean id="conversionService"

        class="org.springframework.core.convert.support.ConversionServiceFactory">

        <property name="converters">

            <set>

                <ref bean="employeeConverter"/>

            </set>

        </property>

</bean>

正确的应该下面这样

<bean id="conversionService"

        class="org.springframework.context.support.ConversionServiceFactoryBean">

        <property name="converters">

            <set>

                <ref bean="employeeConverter"/>

            </set>

        </property>

</bean>

修改成这样就不会报错了。