Spring3+Hibernate4整合时出错 Failed to read candidate component class:

最新推荐文章于 2023-10-25 11:56:05 发布

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最新推荐文章于 2023-10-25 11:56:05 发布

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分类专栏： java 文章标签： hibernate spring

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在尝试将Spring3.2.3RELEASE与Hibernate4.2.21Final进行整合时，遇到了'Failed to read candidate component class'的错误。起初误认为是Java 1.8版本不兼容Spring 3，于是降级到1.7，但问题未解决。实际上，错误的根本原因是配置文件中的扫描路径错误，原本设置为了'entity'。修正扫描路径后，成功完成Spring和Hibernate的整合。

错误信息：

org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: file [F:\Program Files\eclipse\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp1\wtpwebapps\testsh\WEB-INF\classes\entity\Department.class];

nested exception is org.springframework.core.NestedIOException: ASM ClassReader failed to parse class file - probably due to a new Java class file version that isn't supported yet: file [F:\Program Files\eclipse\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp1\wtpwebapps\testsh\WEB-INF\classes\entity\Department.class];

nested exception is java.lang.IllegalArgumentException

版本信息：

spring3.2.3RELEASE hibernate4.2.21Final jdk1.8

一直报上边的错误

百度说java1.8版本只支持spring4.0以上，所以我就把web项目的jdk调为1.7版本，这个错误解决了，但是出现了一个新问题。

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mainController': Injection of autowired dependencies failed;

nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private service.EmpService controller.MainController.empService;

nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [service.EmpService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

原因是我配置文件中扫描路径写错了，写成entity

<context:component-scan base-package="*">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>

修改之后就可以正常访问了，整合成功~~~