java web项目部署到tomcat后无法访问Scala

今天遇到了个问题,dao一下用Sacal写的,上面用java写的,结果,在main方法里测试挺好的结果一部署到tomcat里就找不见Scala的对象了,估计是tomcat没编译Scala,各位大神求解啊!报错如下图图片说明

1个回答

从提示信息只能知道的是,在读取上下文环境变量的时候,遇到无法识别的类.截图猜测:1-使用到的类尚未定义(可否定,原因:在main方法中可以访问该类);
2-环境变量配置文件中,包含的类名的访问路径不正确,印象中默认的根路径是.class文件的路径,这个和main启动默认的路径是不一样的,可研究环境
变量配置文件配置方法

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进行spring mvc整合时 运行tomcat报错 org.springframework.web.context.ConfigurableWebApplicationContext.<init>()

在进行spring mvc整合时 运行tomcat报错 log记录错误信息: ``` 08-Jun-2020 22:27:11.233 信息 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.ApplicationContext.log No Spring WebApplicationInitializer types detected on classpath 08-Jun-2020 22:27:11.412 严重 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.StandardContext.listenerStart Error configuring application listener of class [org.springframework.web.context.ConfigurableWebApplicationContext] java.lang.NoSuchMethodException: org.springframework.web.context.ConfigurableWebApplicationContext.<init>() at java.lang.Class.getConstructor0(Class.java:3082) at java.lang.Class.getConstructor(Class.java:1825) at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:151) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4565) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5109) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:743) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:719) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:695) at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1737) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:287) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:457) at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:406) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:287) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) at com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:468) at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468) at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76) at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309) at java.security.AccessController.doPrivileged(Native Method) at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1408) at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357) at sun.rmi.transport.Transport$1.run(Transport.java:200) at sun.rmi.transport.Transport$1.run(Transport.java:197) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.Transport.serviceCall(Transport.java:196) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:834) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:688) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:687) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) 08-Jun-2020 22:27:11.412 严重 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.StandardContext.listenerStart Skipped installing application listeners due to previous error(s) ```

在java中如何获取或初始化scala.collection.immutable.Map?

java调用kafka API时需要一个一个scala.collection.immutable.Map参数,但不知道如何初始化或通过其他API获取

IDEA中使用scala开发有些地方不进断点!

本人在IDEA中用scala进行断点调试时,发现scala的foreach中 有些地方断点不执行 但是程序执行了 ![图片说明](https://img-ask.csdn.net/upload/201708/30/1504060501_549112.png) 如图 只有红圈的一个断点上面 显示对号,并且程序会停止,其他地方均不停止。不知道哪个高手能指点一下。所用idea版本 scala版本如下 ![图片说明](https://img-ask.csdn.net/upload/201708/30/1504060660_510886.png) ![图片说明](https://img-ask.csdn.net/upload/201708/30/1504060672_136190.png)

scala运行hello world出错

Error:scalac: Error: org.jetbrains.jps.incremental.scala.remote.ServerException Error compiling sbt component 'compiler-interface-2.10.0-52.0' at sbt.compiler.AnalyzingCompiler$$anonfun$compileSources$1$$anonfun$apply$2.apply(AnalyzingCompiler.scala:145) at sbt.compiler.AnalyzingCompiler$$anonfun$compileSources$1$$anonfun$apply$2.apply(AnalyzingCompiler.scala:142) at sbt.IO$.withTemporaryDirectory(IO.scala:291) at sbt.compiler.AnalyzingCompiler$$anonfun$compileSources$1.apply(AnalyzingCompiler.scala:142) at sbt.compiler.AnalyzingCompiler$$anonfun$compileSources$1.apply(AnalyzingCompiler.scala:139) at sbt.IO$.withTemporaryDirectory(IO.scala:291) at sbt.compiler.AnalyzingCompiler$.compileSources(AnalyzingCompiler.scala:139) at sbt.compiler.IC$.compileInterfaceJar(IncrementalCompiler.scala:52) at org.jetbrains.jps.incremental.scala.local.CompilerFactoryImpl$.getOrCompileInterfaceJar(CompilerFactoryImpl.scala:96) at org.jetbrains.jps.incremental.scala.local.CompilerFactoryImpl$$anonfun$getScalac$1.apply(CompilerFactoryImpl.scala:50) at org.jetbrains.jps.incremental.scala.local.CompilerFactoryImpl$$anonfun$getScalac$1.apply(CompilerFactoryImpl.scala:49) at scala.Option.map(Option.scala:146) at org.jetbrains.jps.incremental.scala.local.CompilerFactoryImpl.getScalac(CompilerFactoryImpl.scala:49) at org.jetbrains.jps.incremental.scala.local.CompilerFactoryImpl.createCompiler(CompilerFactoryImpl.scala:22) at org.jetbrains.jps.incremental.scala.local.CachingFactory$$anonfun$createCompiler$1.apply(CachingFactory.scala:24) at org.jetbrains.jps.incremental.scala.local.CachingFactory$$anonfun$createCompiler$1.apply(CachingFactory.scala:24) at org.jetbrains.jps.incremental.scala.local.Cache$$anonfun$getOrUpdate$2.apply(Cache.scala:20) at scala.Option.getOrElse(Option.scala:121) at org.jetbrains.jps.incremental.scala.local.Cache.getOrUpdate(Cache.scala:19) at org.jetbrains.jps.incremental.scala.local.CachingFactory.createCompiler(CachingFactory.scala:23) at org.jetbrains.jps.incremental.scala.local.LocalServer.compile(LocalServer.scala:22) at org.jetbrains.jps.incremental.scala.remote.Main$.make(Main.scala:68) at org.jetbrains.jps.incremental.scala.remote.Main$.nailMain(Main.scala:25) at org.jetbrains.jps.incremental.scala.remote.Main.nailMain(Main.scala) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.martiansoftware.nailgun.NGSession.run(NGSession.java:319)

java.io.FileNotFoundException: NUL: (系统找不到指定的文件。)

``` ![图片说明](https://img-ask.csdn.net/upload/201903/05/1551776620_308084.png)![图片说明](https://img-ask.csdn.net/upload/201903/05/1551776635_236944.png)![图片说明](https://img-ask.csdn.net/upload/201903/05/1551776645_134785.png) ```spring-boot-starter-undertow 其他电脑都没问题。就我自己笔记本不行,用内嵌的tomcat是可以的 org.springframework.web.util.NestedServletException: Handler dispatch failed; nested exception is java.io.IOError: java.io.FileNotFoundException: NUL: (系统找不到指定的文件。) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:982) ~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901) ~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) ~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) ~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) ~[tomcat-embed-core-8.5.29.jar:8.5.29] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) ~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) ~[tomcat-embed-core-8.5.29.jar:8.5.29] at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE] at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109) ~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE] at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) ~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE] at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) ~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE] at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:64) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:132) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) ~[undertow-core-1.4.23.Final.jar:1.4.23.Final] at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46) ~[undertow-core-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60) ~[undertow-core-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43) ~[undertow-core-1.4.23.Final.jar:1.4.23.Final] at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) ~[undertow-core-1.4.23.Final.jar:1.4.23.Final] at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) ~[undertow-core-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43) [undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104) [undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.server.Connectors.executeRootHandler(Connectors.java:336) [undertow-core-1.4.23.Final.jar:1.4.23.Final] at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:830) [undertow-core-1.4.23.Final.jar:1.4.23.Final] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_161] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_161] at java.lang.Thread.run(Thread.java:748) [na:1.8.0_161] Caused by: java.io.IOError: java.io.FileNotFoundException: NUL: (系统找不到指定的文件。) at org.xnio.channels.Channels$4.run(Channels.java:998) ~[xnio-api-3.3.8.Final.jar:3.3.8.Final] at org.xnio.channels.Channels$4.run(Channels.java:988) ~[xnio-api-3.3.8.Final.jar:3.3.8.Final] at java.security.AccessController.doPrivileged(Native Method) ~[na:1.8.0_161] at org.xnio.channels.Channels.<clinit>(Channels.java:988) ~[xnio-api-3.3.8.Final.jar:3.3.8.Final] at io.undertow.servlet.spec.ServletOutputStreamImpl.flushInternal(ServletOutputStreamImpl.java:493) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.spec.ServletOutputStreamImpl.flush(ServletOutputStreamImpl.java:475) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297) ~[na:1.8.0_161] at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) ~[na:1.8.0_161] at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) ~[na:1.8.0_161] at org.springframework.util.StreamUtils.copy(StreamUtils.java:119) ~[spring-core-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.http.converter.StringHttpMessageConverter.writeInternal(StringHttpMessageConverter.java:106) ~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.http.converter.StringHttpMessageConverter.writeInternal(StringHttpMessageConverter.java:41) ~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.http.converter.AbstractHttpMessageConverter.write(AbstractHttpMessageConverter.java:226) ~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:247) ~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.handleReturnValue(RequestResponseBodyMethodProcessor.java:174) ~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.method.support.HandlerMethodReturnValueHandlerComposite.handleReturnValue(HandlerMethodReturnValueHandlerComposite.java:81) ~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:113) ~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) ~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) ~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) ~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967) ~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE] ... 52 common frames omitted Caused by: java.io.FileNotFoundException: NUL: (系统找不到指定的文件。) at java.io.FileOutputStream.open0(Native Method) ~[na:1.8.0_161] at java.io.FileOutputStream.open(FileOutputStream.java:270) ~[na:1.8.0_161] at java.io.FileOutputStream.<init>(FileOutputStream.java:213) ~[na:1.8.0_161] at java.io.FileOutputStream.<init>(FileOutputStream.java:101) ~[na:1.8.0_161] at org.xnio.channels.Channels$4.run(Channels.java:993) ~[xnio-api-3.3.8.Final.jar:3.3.8.Final] ... 72 common frames omitted 2019-03-05 17:04:58.620 ERROR 2260 --- [ XNIO-2 task-1] io.undertow.request : UT005071: Undertow request failed HttpServerExchange{ GET /A request {Connection=[keep-alive], Accept=[text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8], Accept-Language=[zh-CN,zh;q=0.8], Cache-Control=[max-age=0], Accept-Encoding=[gzip, deflate, br], User-Agent=[Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.104 Safari/537.36], Upgrade-Insecure-Requests=[1], Host=[localhost:6001]} response {Connection=[keep-alive], Content-Type=[text/html;charset=UTF-8], Content-Length=[1], Date=[Tue, 05 Mar 2019 09:04:58 GMT]}} java.lang.NoClassDefFoundError: Could not initialize class org.xnio.channels.Channels at io.undertow.servlet.spec.ServletOutputStreamImpl.close(ServletOutputStreamImpl.java:615) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.spec.HttpServletResponseImpl.closeStreamAndWriter(HttpServletResponseImpl.java:479) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.spec.HttpServletResponseImpl.responseDone(HttpServletResponseImpl.java:568) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:339) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.server.Connectors.executeRootHandler(Connectors.java:336) ~[undertow-core-1.4.23.Final.jar:1.4.23.Final] at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:830) ~[undertow-core-1.4.23.Final.jar:1.4.23.Final] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_161] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_161] at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_161] 2019-03-05 17:04:58.729 ERROR 2260 --- [ XNIO-2 task-2] io.undertow.request : UT005023: Exception handling request to /favicon.ico org.springframework.web.util.NestedServletException: Handler dispatch failed; nested exception is java.io.IOError: java.io.FileNotFoundException: NUL: (系统找不到指定的文件。) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:982) ~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901) ~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) ~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) ~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) ~[tomcat-embed-core-8.5.29.jar:8.5.29] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) ~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) ~[tomcat-embed-core-8.5.29.jar:8.5.29] at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE] at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109) ~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE] at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) ~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE] at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) ~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE] at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:64) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:132) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) ~[undertow-core-1.4.23.Final.jar:1.4.23.Final] at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46) ~[undertow-core-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60) ~[undertow-core-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43) ~[undertow-core-1.4.23.Final.jar:1.4.23.Final] at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) ~[undertow-core-1.4.23.Final.jar:1.4.23.Final] at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) ~[undertow-core-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43) [undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104) [undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.server.Connectors.executeRootHandler(Connectors.java:336) [undertow-core-1.4.23.Final.jar:1.4.23.Final] at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:830) [undertow-core-1.4.23.Final.jar:1.4.23.Final] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_161] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_161] at java.lang.Thread.run(Thread.java:748) [na:1.8.0_161] Caused by: java.io.IOError: java.io.FileNotFoundException: NUL: (系统找不到指定的文件。) at org.xnio.conduits.Conduits$1.run(Conduits.java:237) ~[xnio-api-3.3.8.Final.jar:3.3.8.Final] at org.xnio.conduits.Conduits$1.run(Conduits.java:227) ~[xnio-api-3.3.8.Final.jar:3.3.8.Final] at java.security.AccessController.doPrivileged(Native Method) ~[na:1.8.0_161] at org.xnio.conduits.Conduits.<clinit>(Conduits.java:227) ~[xnio-api-3.3.8.Final.jar:3.3.8.Final] at io.undertow.conduits.AbstractFixedLengthStreamSinkConduit.writeFinal(AbstractFixedLengthStreamSinkConduit.java:175) ~[undertow-core-1.4.23.Final.jar:1.4.23.Final] at org.xnio.conduits.ConduitStreamSinkChannel.writeFinal(ConduitStreamSinkChannel.java:104) ~[xnio-api-3.3.8.Final.jar:3.3.8.Final] at io.undertow.channels.DetachableStreamSinkChannel.writeFinal(DetachableStreamSinkChannel.java:195) ~[undertow-core-1.4.23.Final.jar:1.4.23.Final] at io.undertow.server.HttpServerExchange$WriteDispatchChannel.writeFinal(HttpServerExchange.java:2073) ~[undertow-core-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.spec.ServletOutputStreamImpl.writeBufferBlocking(ServletOutputStreamImpl.java:571) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.spec.ServletOutputStreamImpl.close(ServletOutputStreamImpl.java:606) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.spec.ServletOutputStreamImpl.updateWritten(ServletOutputStreamImpl.java:370) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at io.undertow.servlet.spec.ServletOutputStreamImpl.write(ServletOutputStreamImpl.java:152) ~[undertow-servlet-1.4.23.Final.jar:1.4.23.Final] at org.springframework.util.StreamUtils.copy(StreamUtils.java:138) ~[spring-core-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.http.converter.ResourceHttpMessageConverter.writeContent(ResourceHttpMessageConverter.java:110) ~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.http.converter.ResourceHttpMessageConverter.writeInternal(ResourceHttpMessageConverter.java:102) ~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.http.converter.ResourceHttpMessageConverter.writeInternal(ResourceHttpMessageConverter.java:45) ~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.http.converter.AbstractHttpMessageConverter.write(AbstractHttpMessageConverter.java:226) ~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.servlet.resource.ResourceHttpRequestHandler.handleRequest(ResourceHttpRequestHandler.java:480) ~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter.handle(HttpRequestHandlerAdapter.java:51) ~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967) ~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE] ... 52 common frames omitted Caused by: java.io.FileNotFoundException: NUL: (系统找不到指定的文件。) at java.io.FileOutputStream.open0(Native Method) ~[na:1.8.0_161] at java.io.FileOutputStream.open(FileOutputStream.java:270) ~[na:1.8.0_161] at java.io.FileOutputStream.<init>(FileOutputStream.java:213) ~[na:1.8.0_161] at java.io.FileOutputStream.<init>(FileOutputStream.java:101) ~[na:1.8.0_161] at org.xnio.conduits.Conduits$1.run(Conduits.java:232) ~[xnio-api-3.3.8.Final.jar:3.3.8.Final] ... 71 common frames omitted

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