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我有一个使用 Spring Boot Actuator 的 Java 后端,但它无法在 Digitalocean Ubuntu VPS 上启动。相同的应用程序在我的 Mac 和其他 Ubuntu PC 上运行良好。
szabolcs@SmartUpProd:~/smartup$ java -Xmx1536m -jar build/libs/smartup-backend-0.1.0.jar
它开始初始化,但每次都在同一点停止(无一异常(exception),只是挂起)。如果此时我尝试使用 ^C
停止它,它不会恢复 shell。
这是输出:
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.1.5.RELEASE)
2014-09-04 04:19:27.697 INFO 1724 --- [ main] com.smartup.SmartUpConfiguration : Starting SmartUpConfiguration on SmartUpProd with PID 1724 (/home/szabolcs/smartup/build/libs/smartup-backend-0.1.0.jar started by szabolcs in /home/szabolcs/smartup)
2014-09-04 04:19:27.783 INFO 1724 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@464e53bb: startup date [Thu Sep 04 04:19:27 EDT 2014]; root of context hierarchy
2014-09-04 04:19:28.911 INFO 1724 --- [ main] o.s.b.f.s.DefaultListableBeanFactory : Overriding bean definition for bean 'beanNameViewResolver': replacing [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.web.ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration; factoryMethodName=beanNameViewResolver; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/web/ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration.class]] with [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter; factoryMethodName=beanNameViewResolver; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter.class]]
2014-09-04 04:19:30.225 INFO 1724 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'smartUpConfiguration' of type [class com.smartup.SmartUpConfiguration$$EnhancerBySpringCGLIB$$ec37524d] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2014-09-04 04:19:30.254 INFO 1724 --- [ main] o.s.j.d.DriverManagerDataSource : Loaded JDBC driver: com.mysql.jdbc.Driver
2014-09-04 04:19:30.266 INFO 1724 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'dataSource' of type [class org.springframework.jdbc.datasource.DriverManagerDataSource] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2014-09-04 04:19:30.293 INFO 1724 --- [ main] j.LocalContainerEntityManagerFactoryBean : Building JPA container EntityManagerFactory for persistence unit 'default'
2014-09-04 04:19:30.440 INFO 1724 --- [ main] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {4.0.1.Final}
2014-09-04 04:19:30.452 INFO 1724 --- [ main] org.hibernate.Version : HHH000412: Hibernate Core {4.0.1.Final}
2014-09-04 04:19:30.457 INFO 1724 --- [ main] org.hibernate.cfg.Environment : HHH000206: hibernate.properties not found
2014-09-04 04:19:30.459 INFO 1724 --- [ main] org.hibernate.cfg.Environment : HHH000021: Bytecode provider name : javassist
2014-09-04 04:19:30.486 INFO 1724 --- [ main] org.hibernate.ejb.Ejb3Configuration : HHH000204: Processing PersistenceUnitInfo [
name: default
...]
2014-09-04 04:19:30.826 INFO 1724 --- [ main] o.h.s.j.c.i.ConnectionProviderInitiator : HHH000130: Instantiating explicit connection provider: org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider
2014-09-04 04:19:31.175 INFO 1724 --- [ main] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.MySQL5InnoDBDialect
2014-09-04 04:19:31.188 INFO 1724 --- [ main] o.h.e.jdbc.internal.LobCreatorBuilder : HHH000423: Disabling contextual LOB creation as JDBC driver reported JDBC version [3] less than 4
2014-09-04 04:19:31.208 INFO 1724 --- [ main] o.h.e.t.i.TransactionFactoryInitiator : HHH000268: Transaction strategy: org.hibernate.engine.transaction.internal.jdbc.JdbcTransactionFactory
2014-09-04 04:19:31.218 INFO 1724 --- [ main] o.h.h.i.ast.ASTQueryTranslatorFactory : HHH000397: Using ASTQueryTranslatorFactory
2014-09-04 04:19:31.657 INFO 1724 --- [ main] org.hibernate.tool.hbm2ddl.SchemaUpdate : HHH000228: Running hbm2ddl schema update
[...]
2014-09-04 04:19:31.768 INFO 1724 --- [ main] org.hibernate.tool.hbm2ddl.SchemaUpdate : HHH000232: Schema update complete
2014-09-04 04:19:31.947 INFO 1724 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'entityManagerFactory' of type [class org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2014-09-04 04:19:32.092 INFO 1724 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [class org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$7460673f] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2014-09-04 04:19:32.119 INFO 1724 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'transactionAttributeSource' of type [class org.springframework.transaction.annotation.AnnotationTransactionAttributeSource] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2014-09-04 04:19:32.148 INFO 1724 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'transactionInterceptor' of type [class org.springframework.transaction.interceptor.TransactionInterceptor] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2014-09-04 04:19:32.167 INFO 1724 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.config.internalTransactionAdvisor' of type [class org.springframework.transaction.interceptor.BeanFactoryTransactionAttributeSourceAdvisor] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2014-09-04 04:19:32.574 INFO 1724 --- [ main] .t.TomcatEmbeddedServletContainerFactory : Server initialized with port: 8080
2014-09-04 04:19:32.803 INFO 1724 --- [ main] o.apache.catalina.core.StandardService : Starting service Tomcat
2014-09-04 04:19:32.805 INFO 1724 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/7.0.54
2014-09-04 04:19:32.956 INFO 1724 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2014-09-04 04:19:32.957 INFO 1724 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 5178 ms
2014-09-04 04:19:35.202 INFO 1724 --- [ost-startStop-1] o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: Ant [pattern='/css/**'], []
2014-09-04 04:19:35.203 INFO 1724 --- [ost-startStop-1] o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: Ant [pattern='/js/**'], []
2014-09-04 04:19:35.203 INFO 1724 --- [ost-startStop-1] o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: Ant [pattern='/images/**'], []
2014-09-04 04:19:35.203 INFO 1724 --- [ost-startStop-1] o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: Ant [pattern='/**/favicon.ico'], []
2014-09-04 04:19:35.203 INFO 1724 --- [ost-startStop-1] o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: Ant [pattern='/info'], []
2014-09-04 04:19:35.203 INFO 1724 --- [ost-startStop-1] o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: Ant [pattern='/health'], []
2014-09-04 04:19:35.203 INFO 1724 --- [ost-startStop-1] o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: Ant [pattern='/error'], []
2014-09-04 04:19:35.252 INFO 1724 --- [ost-startStop-1] o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: org.springframework.security.web.util.matcher.AnyRequestMatcher@1, [org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter@5c4b8904, org.springframework.security.web.context.SecurityContextPersistenceFilter@36b59af2, org.springframework.security.web.header.HeaderWriterFilter@71880af1, org.springframework.security.web.authentication.logout.LogoutFilter@1cd26cc7, org.springframework.security.web.authentication.www.BasicAuthenticationFilter@10e5d335, org.springframework.security.web.savedrequest.RequestCacheAwareFilter@6c2a1c3a, org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter@5c58c840, org.springframework.security.web.authentication.AnonymousAuthenticationFilter@166e5d45, org.springframework.security.web.session.SessionManagementFilter@49040d09, org.springframework.security.web.access.ExceptionTranslationFilter@2d18c028, org.springframework.security.web.access.intercept.FilterSecurityInterceptor@5dc9dca8]
2014-09-04 04:19:35.257 INFO 1724 --- [ost-startStop-1] o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: OrRequestMatcher [requestMatchers=[Ant [pattern='/dump'], Ant [pattern='/dump/'], Ant [pattern='/dump.*'], Ant [pattern='/env'], Ant [pattern='/env/'], Ant [pattern='/env.*'], Ant [pattern='/configprops'], Ant [pattern='/configprops/'], Ant [pattern='/configprops.*'], Ant [pattern='/autoconfig'], Ant [pattern='/autoconfig/'], Ant [pattern='/autoconfig.*'], Ant [pattern='/mappings'], Ant [pattern='/mappings/'], Ant [pattern='/mappings.*'], Ant [pattern='/trace'], Ant [pattern='/trace/'], Ant [pattern='/trace.*'], Ant [pattern='/metrics'], Ant [pattern='/metrics/'], Ant [pattern='/metrics.*'], Ant [pattern='/beans'], Ant [pattern='/beans/'], Ant [pattern='/beans.*']]], [org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter@73762e60, org.springframework.security.web.context.SecurityContextPersistenceFilter@3d8b310e, org.springframework.security.web.header.HeaderWriterFilter@5ef9f4c9, org.springframework.security.web.authentication.logout.LogoutFilter@2fa7040e, org.springframework.security.web.authentication.www.BasicAuthenticationFilter@3ae20f72, org.springframework.security.web.savedrequest.RequestCacheAwareFilter@1bd98f6, org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter@10736bb4, org.springframework.security.web.session.SessionManagementFilter@4bde96b2, org.springframework.security.web.access.ExceptionTranslationFilter@56ed5cfd, org.springframework.security.web.access.intercept.FilterSecurityInterceptor@2df2e9b6]
2014-09-04 04:19:35.391 INFO 1724 --- [ost-startStop-1] o.s.b.c.e.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/]
2014-09-04 04:19:35.395 INFO 1724 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'metricFilter' to: [/*]
2014-09-04 04:19:35.396 INFO 1724 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'springSecurityFilterChain' to: [/*]
2014-09-04 04:19:35.396 INFO 1724 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2014-09-04 04:19:35.396 INFO 1724 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'applicationContextIdFilter' to: [/*]
2014-09-04 04:19:35.396 INFO 1724 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'webRequestLoggingFilter' to: [/*]
这是 ^C
之后的输出:
^C2014-09-04 04:34:46.560 INFO 1724 --- [ Thread-2] ationConfigEmbeddedWebApplicationContext : Closing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@464e53bb: startup date [Thu Sep 04 04:19:27 EDT 2014]; root of context hierarchy
2014-09-04 04:34:46.573 WARN 1724 --- [ Thread-2] ationConfigEmbeddedWebApplicationContext : Exception thrown from LifecycleProcessor on context close
java.lang.IllegalStateException: LifecycleProcessor not initialized - call 'refresh' before invoking lifecycle methods via the context: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@464e53bb: startup date [Thu Sep 04 04:19:27 EDT 2014]; root of context hierarchy
at org.springframework.context.support.AbstractApplicationContext.getLifecycleProcessor(AbstractApplicationContext.java:359)
at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:888)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.doClose(EmbeddedWebApplicationContext.java:152)
at org.springframework.context.support.AbstractApplicationContext$1.run(AbstractApplicationContext.java:809)
2014-09-04 04:34:46.601 INFO 1724 --- [ Thread-2] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default'
有人遇到过同样的问题吗?你们能帮帮我吗?
这里有线程转储(挂起时):
szabolcs@SmartUpProd:~$ jstack 2616
2014-09-04 07:33:30
Full thread dump Java HotSpot(TM) 64-Bit Server VM (25.20-b23 mixed mode):
"Attach Listener" #14 daemon prio=9 os_prio=0 tid=0x00007fb678001000 nid=0xaae waiting on condition [0x0000000000000000]
java.lang.Thread.State: RUNNABLE
"localhost-startStop-1" #13 daemon prio=5 os_prio=0 tid=0x00007fb65000d000 nid=0xa46 runnable [0x00007fb662fec000]
java.lang.Thread.State: RUNNABLE
at java.io.FileInputStream.readBytes(Native Method)
at java.io.FileInputStream.read(FileInputStream.java:246)
at sun.security.provider.SeedGenerator$URLSeedGenerator.getSeedBytes(SeedGenerator.java:539)
at sun.security.provider.SeedGenerator.generateSeed(SeedGenerator.java:144)
at sun.security.provider.SecureRandom$SeederHolder.<clinit>(SecureRandom.java:192)
at sun.security.provider.SecureRandom.engineNextBytes(SecureRandom.java:210)
- locked <0x00000000f15173a0> (a sun.security.provider.SecureRandom)
at java.security.SecureRandom.nextBytes(SecureRandom.java:457)
- locked <0x00000000f15176c0> (a java.security.SecureRandom)
at java.security.SecureRandom.next(SecureRandom.java:480)
at java.util.Random.nextInt(Random.java:329)
at org.apache.catalina.util.SessionIdGenerator.createSecureRandom(SessionIdGenerator.java:246)
at org.apache.catalina.util.SessionIdGenerator.getRandomBytes(SessionIdGenerator.java:183)
at org.apache.catalina.util.SessionIdGenerator.generateSessionId(SessionIdGenerator.java:153)
at org.apache.catalina.session.ManagerBase.startInternal(ManagerBase.java:573)
at org.apache.catalina.session.StandardManager.startInternal(StandardManager.java:485)
- locked <0x00000000f1395fc0> (a org.apache.catalina.session.StandardManager)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
- locked <0x00000000f1395fc0> (a org.apache.catalina.session.StandardManager)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5476)
- locked <0x00000000f675e1a8> (a org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedContext)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
- locked <0x00000000f675e1a8> (a org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedContext)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
"Tomcat-startStop-1" #12 daemon prio=5 os_prio=0 tid=0x00007fb65f35b000 nid=0xa45 waiting on condition [0x00007fb6801d8000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000000f675e178> (a java.util.concurrent.FutureTask)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:429)
at java.util.concurrent.FutureTask.get(FutureTask.java:191)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123)
- locked <0x00000000f6705460> (a org.apache.catalina.core.StandardHost)
at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:799)
- locked <0x00000000f6705460> (a org.apache.catalina.core.StandardHost)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
- locked <0x00000000f6705460> (a org.apache.catalina.core.StandardHost)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
"DestroyJavaVM" #10 prio=5 os_prio=0 tid=0x00007fb6a0009800 nid=0xa39 waiting on condition [0x0000000000000000]
java.lang.Thread.State: RUNNABLE
"main" #9 prio=5 os_prio=0 tid=0x00007fb6a01cf800 nid=0xa44 waiting on condition [0x00007fb6808ef000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000000f6705430> (a java.util.concurrent.FutureTask)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:429)
at java.util.concurrent.FutureTask.get(FutureTask.java:191)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123)
- locked <0x00000000f675c598> (a org.apache.catalina.core.StandardEngine)
at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:300)
- locked <0x00000000f675c598> (a org.apache.catalina.core.StandardEngine)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
- locked <0x00000000f675c598> (a org.apache.catalina.core.StandardEngine)
at org.apache.catalina.core.StandardService.startInternal(StandardService.java:443)
- locked <0x00000000f675c598> (a org.apache.catalina.core.StandardEngine)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
- locked <0x00000000f675bc98> (a org.apache.catalina.core.StandardService)
at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:731)
- locked <0x00000000f675c340> (a [Lorg.apache.catalina.Service;)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
- locked <0x00000000f675bd68> (a org.apache.catalina.core.StandardServer)
at org.apache.catalina.startup.Tomcat.start(Tomcat.java:341)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:85)
- locked <0x00000000f6bbad18> (a org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:74)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getTomcatEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:289)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:146)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:159)
- locked <0x00000000a0d8f098> (a org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:132)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:476)
- locked <0x00000000a0d8f2c8> (a java.lang.Object)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:120)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:691)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:320)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:952)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:941)
at com.smartup.SmartUpConfiguration.main(SmartUpConfiguration.java:78)
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:483)
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:53)
at java.lang.Thread.run(Thread.java:745)
"Service Thread" #7 daemon prio=9 os_prio=0 tid=0x00007fb6a0152000 nid=0xa42 runnable [0x0000000000000000]
java.lang.Thread.State: RUNNABLE
"C1 CompilerThread1" #6 daemon prio=9 os_prio=0 tid=0x00007fb6a0132800 nid=0xa41 waiting on condition [0x0000000000000000]
java.lang.Thread.State: RUNNABLE
"C2 CompilerThread0" #5 daemon prio=9 os_prio=0 tid=0x00007fb6a012f800 nid=0xa40 waiting on condition [0x0000000000000000]
java.lang.Thread.State: RUNNABLE
"Signal Dispatcher" #4 daemon prio=9 os_prio=0 tid=0x00007fb6a012d800 nid=0xa3f runnable [0x0000000000000000]
java.lang.Thread.State: RUNNABLE
"Finalizer" #3 daemon prio=8 os_prio=0 tid=0x00007fb6a00ff000 nid=0xa3e in Object.wait() [0x00007fb69041e000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x00000000a0487660> (a java.lang.ref.ReferenceQueue$Lock)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:142)
- locked <0x00000000a0487660> (a java.lang.ref.ReferenceQueue$Lock)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:158)
at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:209)
"Reference Handler" #2 daemon prio=10 os_prio=0 tid=0x00007fb6a00fd000 nid=0xa3d in Object.wait() [0x00007fb69051f000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x00000000a04876a0> (a java.lang.ref.Reference$Lock)
at java.lang.Object.wait(Object.java:502)
at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:157)
- locked <0x00000000a04876a0> (a java.lang.ref.Reference$Lock)
"VM Thread" os_prio=0 tid=0x00007fb6a00f6000 nid=0xa3c runnable
"GC task thread#0 (ParallelGC)" os_prio=0 tid=0x00007fb6a001f000 nid=0xa3a runnable
"GC task thread#1 (ParallelGC)" os_prio=0 tid=0x00007fb6a0020800 nid=0xa3b runnable
"VM Periodic Task Thread" os_prio=0 tid=0x00007fb6a0154000 nid=0xa43 waiting on condition
JNI global references: 48
最佳答案
localhost-startStop-1
正在尝试创建一个新的 SecureRandom
实例,但它在尝试从熵源读取数据时卡住了。这通常是因为源已耗尽而发生。默认的熵源是 /dev/random
。它被称为阻塞源,因为它会在尝试读取随机数据但没有可用数据时阻塞。 Linux 上的另一个来源是 /dev/urandom
。它优于 /dev/random
的主要优点是它是非阻塞的。关于使用 /dev/urandom
是否会降低安全性存在一些争论。 This article可能会感兴趣。
总而言之,使用 /dev/urandom
可以避免您遇到的问题,但可能会降低安全性。您可以通过系统属性将 Spring Boot 的嵌入式 Tomcat 实例配置为使用 /dev/urandom
:
-Djava.security.egd=file:/dev/./urandom
关于java - Spring Boot Actuator 应用程序无法在 Ubuntu VPS 上启动,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/34825067/
我尝试阅读有关 Spring BOM、Spring Boot 和 Spring IO 的文档。 但是没有说明,我们应该如何一起使用它们? 在我的项目中,我们已经有了自己的 Parent POM ,所以
我正在开发的很酷的企业应用程序正在转向 Spring。这对所有团队来说都是非常酷和令人兴奋的练习,但也是一个巨大的压力源。我们所做的是逐渐将遗留组件移至 Spring 上下文。现在我们有一个 huuu
我正在尝试使用 @Scheduled 运行 Spring 批处理作业注释如下: @Scheduled(cron = "* * * * * ?") public void launchMessageDi
我对这两个概念有点困惑。阅读 Spring 文档,我发现,例如。 bean 工厂是 Spring 容器。我还读到“ApplicationContext 是 BeanFactory 的完整超集”。但两者
我们有一个使用 Spring BlazeDS 集成的应用程序。到目前为止,我们一直在使用 Spring 和 Flex,它运行良好。我们现在还需要添加一些 Spring MVC Controller 。
假设我有一个类(class) Person带属性name和 age ,它可以像这样用 Spring 配置: 我想要一个自定义的 Spring 模式元素,这很容易做到,允许我在我的 Sp
如何在 Java 中以编程方式使用 Spring Data 创建 MongoDB 复合索引? 使用 MongoTemplate 我可以创建一个这样的索引:mongoTemplate.indexOps(
我想使用 spring-complex-task 执行我的应用程序,并且我已经构建了复杂的 spring-batch Flow Jobs,它执行得非常好。 你能解释一下spring批处理流作业与spr
我实现了 spring-boot 应用程序,现在我想将它用作非 spring 应用程序的库。 如何初始化 lib 类,以便 Autowiring 的依赖项按预期工作?显然,如果我使用“new”创建类实
我刚开始学习 spring cloud security,我有一个基本问题。它与 Spring Security 有何不同?我们是否需要在 spring boot 上构建我们的应用程序才能使用 spr
有很多人建议我使用 Spring Boot 而不是 Spring 来开发 REST Web 服务。我想知道这两者到底有什么区别? 最佳答案 总之 Spring Boot 减少了编写大量配置和样板代码的
您能向我解释一下如何使用 Spring 正确构建 Web 应用程序吗?我知道 Spring 框架的最新版本是 4.0.0.RELEASE,但是 Spring Security 的最新版本是 3.2.0
我如何才能知道作为 Spring Boot 应用程序的一部分加载的所有 bean 的名称?我想在 main 方法中有一些代码来打印服务器启动后加载的 bean 的详细信息。 最佳答案 如spring-
我有一个使用 Spring 3.1 构建的 RESTful API,也使用 Spring Security。我有一个 Web 应用程序,也是一个 Spring 3.1 MVC 应用程序。我计划让移动客
升级到 Spring 5 后,我在 Spring Rabbit 和 Spring AMQP 中遇到错误。 两者现在都设置为 1.5.6.RELEASE 有谁知道哪些版本应该与 Spring 5 兼容?
我现在已经使用 Spring Framework 3.0.5 和 Spring Security 3.0.5 多次了。我知道Spring框架使用DI和AOP。我还知道 Spring Security
我收到错误 Unable to Location NamespaceHandler when using context:annotation-config running (java -jar) 由
在 Spring 应用程序中嵌入唯一版本号的策略是什么? 我有一个使用 Spring Boot 和 Spring Web 的应用程序。 它已经足够成熟,我想对其进行版本控制并在运行时看到它显示在屏幕上
我正在使用 spring data jpa 进行持久化。如果存在多个具有相同名称的实体,是否有一种方法可以将一个实体标记为默认值。类似@Primary注解的东西用来解决多个bean的依赖问题 @Ent
我阅读了 Spring 框架的 DAOSupport 类。但是我无法理解这些 DAOSuport 类的优点。在 DAOSupport 类中,我们调用 getXXXTemplate() 方法来获取特定的
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