在做cxf+spring+mybatis整合的时候发现logger日志无法正常输出，即使配置为debug级别也不会输出日志，
自己无意中用了下spring的日志文件
slf4j-api-1.7.5.jar
slf4j-log4j12-1.7.5.jar
这两个包本来用的是3.09版本原来的是
slf4j-api-1.7.19.jar
slf4j-jdk14-1.7.19.jar
但是如果替换了后你可以发现项目中有报错的问题
23:22:30,517 DEBUG Extension:263 - Could not load optional extension org.apache.cxf.transport.http.netty.server.NettyHttpDestinationFactory
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at org.apache.cxf.bus.extension.Extension.load(Extension.java:249)
at org.apache.cxf.bus.extension.ExtensionManagerImpl.loadAndRegister(ExtensionManagerImpl.java:213)
at org.apache.cxf.bus.extension.ExtensionManagerImpl.getBeansOfType(ExtensionManagerImpl.java:348)
at org.apache.cxf.bus.spring.SpringBeanLocator.getBeansOfType(SpringBeanLocator.java:153)
at org.apache.cxf.bus.extension.ExtensionManagerBus.getExtension(ExtensionManagerBus.java:220)
at org.apache.cxf.transport.http.HTTPTransportFactory.getDestination(HTTPTransportFactory.java:262)
at org.apache.cxf.binding.soap.SoapTransportFactory.getDestination(SoapTransportFactory.java:135)
at org.apache.cxf.endpoint.ServerImpl.initDestination(ServerImpl.java:84)
at org.apache.cxf.endpoint.ServerImpl.<init>(ServerImpl.java:63)
at org.apache.cxf.frontend.ServerFactoryBean.create(ServerFactoryBean.java:170)
at org.apache.cxf.jaxws.JaxWsServerFactoryBean.create(JaxWsServerFactoryBean.java:211)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1640)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1581)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1511)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:293)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:290)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:191)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:636)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:934)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
at org.apache.cxf.transport.servlet.CXFServlet.createSpringContext(CXFServlet.java:151)
at org.apache.cxf.transport.servlet.CXFServlet.loadBus(CXFServlet.java:74)
at org.apache.cxf.transport.servlet.CXFNonSpringServlet.init(CXFNonSpringServlet.java:77)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1213)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1026)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4451)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4768)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:803)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:780)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:583)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1080)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1003)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:507)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1322)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:325)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1069)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:822)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1061)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
at org.apache.catalina.core.StandardService.start(StandardService.java:525)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:759)
at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: java.lang.NoClassDefFoundError: io/netty/util/Version
at org.apache.cxf.transport.http.netty.server.NettyHttpDestinationFactory.<init>(NettyHttpDestinationFactory.java:36)
... 60 more
Caused by: java.lang.ClassNotFoundException: io.netty.util.Version
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1680)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)
你会发现报错的问题，但是你如果把jar加进去了还是报错的，所以可以忽略次问题（本人个人认为）并不影响使用问题
此方式仅供参考
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