请问您用的开发环境是什么，这个程序需要使用JDK 1.7.因为应用的Spring版本不支持JDK 8。

我用的是jdk8，jdk8不能解决吗？

可是我用的是jdk8，jdk能兼容吗？

您可以再安装一个JDK 7，然后在Eclipse的这个项目中配置使用这个JDK7 具体配置方法可以参看光盘使用说明 。

如果想让JDK 8兼容，那么就得换使用的Spring包的版本，这两个版本差异较大，比较麻烦。

我换了jdk7还是报了错，404错误

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

java.lang.IllegalArgumentException

at org.springframework.asm.ClassReader.<init>(Unknown Source)

at org.springframework.asm.ClassReader.<init>(Unknown Source)

at org.springframework.asm.ClassReader.<init>(Unknown Source)

at org.springframework.core.type.classreading.SimpleMetadataReader.<init>(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.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:76)

at org.springframework.context.annotation.ConfigurationClassParser.getImports(ConfigurationClassParser.java:298)

at org.springframework.context.annotation.ConfigurationClassParser.getImports(ConfigurationClassParser.java:300)

at org.springframework.context.annotation.ConfigurationClassParser.getImports(ConfigurationClassParser.java:300)

at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:230)

at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:153)

at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:130)

at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:285)

at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:223)

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:4861)

at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5322)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)

at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1408)

at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1398)

at java.util.concurrent.FutureTask.run(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

at java.lang.Thread.run(Unknown Source)

三月 23, 2018 11:23:33 上午 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

三月 23, 2018 11:23:33 上午 org.apache.catalina.core.StandardContext startInternal

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

三月 23, 2018 11:23:33 上午 org.apache.catalina.core.ApplicationContext log

信息: Closing Spring root WebApplicationContext

[org.springframework.web.context.ContextLoader]Context initialization failed

从这个提示上看，还应该是JDK的版本不兼容，您再确认一下是否修改成功。如果没有问题，也可以清理一下项目试试。