与 Spring 的集成测试：无法转换类型错误的值

Question

我正在为我们的 Spring 应用程序开发集成测试脚本。 当我从 ant 运行测试时，我收到以下错误消息： 任何理想的原因？

测试用例：

testgetDefaultItemForStoreWithInvalidStoreId(com.xyz.business.admin.role.RoleUtilityUnitTest):  
Caused an ERROR Error creating bean with name 'groundingService' defined in URL 
[file:/C:/workspace/_EACE1_0_06/EB_Ace_Vob/Business/build/classess/businessContext.xml]: Error 
setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested 
PropertyAccessExceptions (1) are: PropertyAccessException 1: org.springframework.beans.TypeMismatchException: 
Failed to convert property value of type [$Proxy47] to required type 
[com.xyz.business.grounding.service.OdometerPdfStatement] for property 'odometerPdfStatement'; nested exception 
is java.lang.IllegalArgumentException: Cannot convert value of type [$Proxy47] to required type 
[com.xyz.business.grounding.service.OdometerPdfStatement] for property 'odometerPdfStatement': no matching editors or 
conversion strategy found org.springframework.beans.factory.BeanCreationException: Error creating bean with 
name 'groundingService' defined in 
URL [file:/C:/workspace/_EACE1_0_06/EB_Ace_Vob/Business/build/classess/businessContext.xml]: Error 
setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested 
PropertyAccessExceptions (1) are: PropertyAccessException 1: org.springframework.beans.TypeMismatchException: 
Failed to convert property value of type [$Proxy47] to required type 
[com.xyz.business.grounding.service.OdometerPdfStatement] for property 'odometerPdfStatement'; 
nested exception is java.lang.IllegalArgumentException: Cannot convert value of type [$Proxy47] to 
required type [com.xyz.business.grounding.service.OdometerPdfStatement] for property 'odometerPdfStatement': 
no matching editors or conversion strategy found Caused by: 
org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessException details (1) are: 
PropertyAccessException 1:

OdometerPDFStatement 是一个类（不是接口）

我有以下内容：

    <bean id="odometerPdfStatement" class="com.xyz.business.grounding.service.OdometerPdfStatement"/>


<bean id="groundingService" class="com.xyz.business.grounding.service.GroundingServiceImpl">
    <property name="groundingInformationManager" ref="groundingInformationManager"/>
    <property name="codeManager" ref="codeManager"/>
    <property name="userManager" ref="userManager"/>
    <property name="configurator" ref="groundingConfigurator"/>
    <property name="velocityPropertyFilePath" value="velocity.properties"/>
    <property name="velocityTemplate" value="OdometerStatement.vm"/>
    <property name="odometerStatementXSLResourceFile" value="classpath:OdometerStatement2xsl-fo.xsl"/>
    <property name="imagePropertyFile" value="classpath:images.properties"/>
    <property name="odometerPdfStatement" ref="odometerPdfStatement"/>
    <property name="inspectionInformationManager" ref="inspectionInformationManager"/>
    <property name="saleEventManager" ref="saleEventManager"/>
    <property name="vehicleHistoryManager" ref="vehicleHistoryManager"/>
</bean>

Answer 1

我已经经历过几次这样的事了。 这意味着spring创建的代理没有实现正确的接口。

我建议您在注入器上放置一个断点并检查 $Proxy47 以确定它正在实现什么。

另外，如果该类 om.xyz.business.grounding.service.OdometerPdfStatement 实现了 2 个接口，我不确定 spring 如何决定在代理时使用哪个接口。 我怀疑它可能实现两个接口，并且正在另一个接口上创建代理。

Answer 2

看起来您需要将 cglib jar 添加到您的类路径中。 Cglib 确保 Spring 可以代理具体类，而不仅仅是接口。