Failed to read candidate component class

异常原因：使用了jdk1.7.0_51

解决思路：

1.先在Java Compiler中将Compile compliance level设置成1.7

2.将jdk的版本从jdk1.7.0_51升级1.7.0._79以上就可以能正常运行

注意：当我把jdk升级到1.8以上的同时将Compile compliance level设置成1.7还是会报相同的错误

总结：最后找到了其它的资料，个人比较认可的分析原因：

spring3.*不能使用jdk8.0 要保证你的eclipse使用的是1.7，tomcat使用的是1.7

参考原址：http://www.oschina.net/question/2246244_237147?sort=time



九月 04, 2016 12:14:42 下午 org.apache.catalina.core.StandardContext listenerStart

严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener

org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: file [D:\apache\apache-tomcat-9.0.0.M9\webapps\springmvc_mybatis0903\WEB-INF\classes\cn\itcast\ssm\mapper\ItemsMapper.class]; nested exception is java.lang.IllegalArgumentException

at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:281)

at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:242)

at org.mybatis.spring.mapper.ClassPathMapperScanner.doScan(ClassPathMapperScanner.java:155)

at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.scan(ClassPathBeanDefinitionScanner.java:220)

at org.mybatis.spring.mapper.MapperScannerConfigurer.postProcessBeanDefinitionRegistry(MapperScannerConfigurer.java:315)

at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:630)

at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:461)

at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:383)

at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:283)

at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)

at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4715)

at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5177)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:152)

at org.apache.catalina.core.ContainerBaseStartChild.call(ContainerBase.java:1403)atorg.apache.catalina.core.ContainerBaseStartChild.call(ContainerBase.java:1393)

at java.util.concurrent.FutureTask.run(FutureTask.java:266)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

at java.lang.Thread.run(Thread.java:745)

Caused by: java.lang.IllegalArgumentException

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

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

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

at org.springframework.core.type.classreading.SimpleMetadataReader.(SimpleMetadataReader.java:52)

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

at org.springframework.core.type.classreading.CachingMetadataReaderFactory.getMetadataReader(CachingMetadataReaderFactory.java:101)

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

… 18 more

九月 04, 2016 12:14:42 下午 org.apache.catalina.core.ApplicationContext log

信息: Log4jServletContextListener ensuring that Log4j starts up properly.

九月 04, 2016 12:14:42 下午 org.apache.catalina.core.StandardContext startInternal

严重: One or more listeners failed to start. Full details will be found in the appropriate container log file

九月 04, 2016 12:14:42 下午 org.apache.catalina.util.SessionIdGeneratorBase createSecureRandom

信息: Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [245] milliseconds.

九月 04, 2016 12:14:42 下午 org.apache.catalina.core.StandardContext startInternal

严重: Context [/springmvc_mybatis0903] startup failed due to previous errors

九月 04, 2016 12:14:42 下午 org.apache.catalina.core.ApplicationContext log

信息: Log4jServletContextListener ensuring that Log4j shuts down properly.

九月 04, 2016 12:14:42 下午 org.apache.catalina.core.ApplicationContext log

信息: Removing LoggerContext for [springmvc_mybatis0903].

九月 04, 2016 12:14:43 下午 org.apache.catalina.core.ApplicationContext log

信息: Closing Spring root WebApplicationContext

九月 04, 2016 12:14:43 下午 org.apache.catalina.startup.HostConfig deployDirectory

信息: Deploying web application directory D:\apache\apache-tomcat-9.0.0.M9\webapps\docs

九月 04, 2016 12:14:43 下午 org.apache.catalina.startup.HostConfig deployDirectory

信息: Deployment of web application directory D:\apache\apache-tomcat-9.0.0.M9\webapps\docs has finished in 78 ms

九月 04, 2016 12:14:43 下午 org.apache.catalina.startup.HostConfig deployDirectory

信息: Deploying web application directory D:\apache\apache-tomcat-9.0.0.M9\webapps\examples

九月 04, 2016 12:14:44 下午 org.apache.catalina.core.ApplicationContext log

信息: ContextListener: contextInitialized()

九月 04, 2016 12:14:44 下午 org.apache.catalina.core.ApplicationContext log

信息: SessionListener: contextInitialized()

九月 04, 2016 12:14:44 下午 org.apache.catalina.startup.HostConfig deployDirectory

信息: Deployment of web application directory D:\apache\apache-tomcat-9.0.0.M9\webapps\examples has finished in 1,061 ms

九月 04, 2016 12:14:44 下午 org.apache.catalina.startup.HostConfig deployDirectory

信息: Deploying web application directory D:\apache\apache-tomcat-9.0.0.M9\webapps\host-manager

九月 04, 2016 12:14:44 下午 org.apache.catalina.startup.HostConfig deployDirectory

信息: Deployment of web application directory D:\apache\apache-tomcat-9.0.0.M9\webapps\host-manager has finished in 69 ms

九月 04, 2016 12:14:44 下午 org.apache.catalina.startup.HostConfig deployDirectory

信息: Deploying web application directory D:\apache\apache-tomcat-9.0.0.M9\webapps\manager

九月 04, 2016 12:14:44 下午 org.apache.catalina.startup.HostConfig deployDirectory

信息: Deployment of web application directory D:\apache\apache-tomcat-9.0.0.M9\webapps\manager has finished in 91 ms

九月 04, 2016 12:14:44 下午 org.apache.catalina.startup.HostConfig deployDirectory

信息: Deploying web application directory D:\apache\apache-tomcat-9.0.0.M9\webapps\ROOT

九月 04, 2016 12:14:44 下午 org.apache.catalina.startup.HostConfig deployDirectory

信息: Deployment of web application directory D:\apache\apache-tomcat-9.0.0.M9\webapps\ROOT has finished in 62 ms

九月 04, 2016 12:14:44 下午 org.apache.coyote.AbstractProtocol start

信息: Starting ProtocolHandler [http-nio-8080]

九月 04, 2016 12:14:44 下午 org.apache.coyote.AbstractProtocol start

信息: Starting ProtocolHandler [ajp-nio-8009]

九月 04, 2016 12:14:44 下午 org.apache.catalina.startup.Catalina start

信息: Server startup in 8153 ms