SSM开发过程Bug集锦

Posted 2022-12-27 chenglaoshi

问题描述：

org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: file [D:\tts9\StudyWorkSpace\TeduStore\target\classes\cn\tedu\store\mapper\UserMapper.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 [D:\tts9\StudyWorkSpace\TeduStore\target\classes\cn\tedu\store\mapper\UserMapper.class]; nested exception is java.lang.IllegalArgumentException
at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:290)
at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:242)
at org.springframework.context.annotation.ComponentScanBeanDefinitionParser.parse(ComponentScanBeanDefinitionParser.java:84)
at org.springframework.beans.factory.xml.NamespaceHandlerSupport.parse(NamespaceHandlerSupport.java:73)
..........

问题所在：　

　　　　<!-- Spring WebMVC --> 
　　　　<dependency>
　　　　　　<groupId>org.springframework</groupId>
　　　　　　<artifactId>spring-webmvc</artifactId>
　　　　　　<version>3.2.8.RELEASE</version>    
　　　　</dependency>

解决方法：

　　从问题描述中：probably due to a new Java class file version that isn‘t supported yet

　　得知：可能是因为新的Java类文件版本尚不受支持。

　　　　》》将spring-webmvc的版本号改为： 4.3.1 即可，因为项目的jdk为1.8的高版本，所以springmvc的版本号需要更高的与之匹配。