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开发工具：MyEclipse 2017 CI 10

环境 ：jdk 1.8 , Spring 4.1  , Jedis 2.10

问题代码：

package com.scott.springmvc.restcontroller;import org.springframework.web.bind.annotation.RequestMapping;import com.util.RedisUtil;import org.springframework.web.bind.annotation.*;import redis.clients.jedis.Jedis;@RestControllerpublic class Buy {    private Jedis redis = null;		@RequestMapping("/GetRedis")	public String GetRedisByKey(String key){		redis = RedisUtil.getJedis();		System.out.println("Get data from Redis");		return redis.get(key);	}}

发布到MyEclipse tomcat 8.5后，调用提示

严重: StandardWrapper.Throwablejava.lang.NoClassDefFoundError: Lredis/clients/jedis/Jedis;	at java.lang.Class.getDeclaredFields0(Native Method)	at java.lang.Class.privateGetDeclaredFields(Unknown Source)	at java.lang.Class.getDeclaredFields(Unknown Source)	at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.findResourceMetadata(CommonAnnotationBeanPostProcessor.java:328)	at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessMergedBeanDefinition(CommonAnnotationBeanPostProcessor.java:284)	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyMergedBeanDefinitionPostProcessors(AbstractAutowireCapableBeanFactory.java:924)	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:229)	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:725)	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)	at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:658)	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:624)	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:672)	at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:543)	at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:484)	at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)	at javax.servlet.GenericServlet.init(GenericServlet.java:158)	at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1183)	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1099)	at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:779)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:133)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:474)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349)	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:783)	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:789)	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1437)	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)	at java.lang.Thread.run(Unknown Source)Caused by: java.lang.ClassNotFoundException: redis.clients.jedis.Jedis	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1285)	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1119)	... 42 more五月 14, 2020 4:10:54 下午 org.apache.catalina.core.StandardWrapperValve invoke严重: Allocate exception for servlet dispatcherjava.lang.ClassNotFoundException: redis.clients.jedis.Jedis	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1285)	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1119)	at java.lang.Class.getDeclaredFields0(Native Method)	at java.lang.Class.privateGetDeclaredFields(Unknown Source)	at java.lang.Class.getDeclaredFields(Unknown Source)	at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.findResourceMetadata(CommonAnnotationBeanPostProcessor.java:328)	at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessMergedBeanDefinition(CommonAnnotationBeanPostProcessor.java:284)	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyMergedBeanDefinitionPostProcessors(AbstractAutowireCapableBeanFactory.java:924)	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:229)	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:725)	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)	at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:658)	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:624)	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:672)	at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:543)	at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:484)	at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)	at javax.servlet.GenericServlet.init(GenericServlet.java:158)	at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1183)	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1099)	at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:779)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:133)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:474)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349)	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:783)	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:789)	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1437)	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)	at java.lang.Thread.run(Unknown Source)

 上网查询有关java.lang.ClassNotFoundException: redis.clients.jedis.Jedis的问题，或是有关SpringMVC使用使用Jedis的问题（因为本人初次使用SpringMVC和Jedis，所以这么查了），多数提到org.springframework.data及其各种配置方法，经过各种尝试，换版本，问题依旧，突然想到生成没错，也可以成功发布，只是调用出错，说明项目引用没问题，会不会是jedis-2.10.0.jar这个文件没发布到tomcat呢。更改下发布属性试试

右键项目属性

把引部jar文件添加到这列表，重新发布。 重新调用上述代码中的方法，MyEclipse Console   会输出F4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".的信息，应该是少某个引用，不过上述错误信息没有，访问Redis也没有问题了。java.lang.ClassNotFoundException: redis.clients.jedis.Jedis 这个问题终于解决。

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