ASM ClassReader failed to parse class file - probably due to a new Java class file version that isn

错误产生的信息如下：

Caused by: 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 [E:\develop_tools\apache-tomcat-8.0.18\webapps\SpringMVCUploadFileDemo\WEB-INF\classes\com\evan\action\UploadFileAction.class]; nested exception is java.lang.IllegalArgumentException

at org.springframework.core.type.classreading.SimpleMetadataReader.(SimpleMetadataReader.java:56)

at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:80)

at org.springframework.core.type.classreading.CachingMetadataReaderFactory.getMetadataReader(CachingMetadataReaderFactory.java:102)

at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:257)

… 39 more

Caused by: java.lang.IllegalArgumentException

at org.springframework.asm.ClassReader.(Unknown Source)

产生的原因是：我用的JDK8.0版本，而spring使用的是3.2。

解决办法是：将项目的编译版本降到1.7即可。

具体如下：

在项目上右键–properties–java Compile–compiler compliance level 如图所示：



设置好编译版本后，项目上会有红色的小叉，不过这样不会影响项目的运行。

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原版英文解释如下：

you need Spring 4 if you want compile code to Java 8 (–target 1.8), but you can still run apps on Java 8 compiled to Java 7 if you run on Spring 3.2.X.