openshift中的Java RMI端口绑定错误

Question

我开发了一个基于 Spring 的小型 Web 应用程序来测试 Spring RMI。在那里，我创建了一个简单的服务来根据输入参数生成问候消息并将其返回给客户端。我的 spring 上下文文件如下所示：

<bean id="registry" 
class="org.springframework.remoting.rmi.RmiRegistryFactoryBean">

  <property name="port" value="4777"/>

</bean>

<bean id="greetingService" class="com.greeting.GreetingServiceImpl" >
</bean>

<bean class="org.springframework.remoting.rmi.RmiServiceExporter"
      p:service-ref="greetingService"
      p:serviceName="greetingRmiService"
      p:serviceInterface="com.greeting.GreetingService"
      p:registry-ref="registry"
/>

首先，我在运行 tomcat server 7 的本地电脑上部署了这个应用程序，并且部署成功。 然后我把这个应用的war文件上传到了Openshift tomcat 7 DIY服务器。但它没有部署我的应用程序并在日志文件中给出了这个错误。

SEVERE: Context initialization failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'registry' defined in ServletCo ntext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is java.rmi.serve r.ExportException: Port already in use: 4777; nested exception is: java.net.BindException: Permission denied at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowir eCapableBeanFactory.java:1420) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireC apableBeanFactory.java:519) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCap ableBeanFactory.java:456) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:293) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanReg istry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:290) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:192) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListab leBeanFactory.java:567) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractAppl icationContext.java:895) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425) at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:282) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:204) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4791) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5285) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:618) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1100) at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1618) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:722) Caused by: java.rmi.server.ExportException: Port already in use: 4777; nested exception is: java.net.BindException: Permission denied at sun.rmi.transport.tcp.TCPTransport.listen(TCPTransport.java:328) at sun.rmi.transport.tcp.TCPTransport.exportObject(TCPTransport.java:236) at sun.rmi.transport.tcp.TCPEndpoint.exportObject(TCPEndpoint.java:411) at sun.rmi.transport.LiveRef.exportObject(LiveRef.java:147) at sun.rmi.server.UnicastServerRef.exportObject(UnicastServerRef.java:207) at sun.rmi.registry.RegistryImpl.setup(RegistryImpl.java:123) at sun.rmi.registry.RegistryImpl.(RegistryImpl.java:109) at java.rmi.registry.LocateRegistry.createRegistry(LocateRegistry.java:203) at org.springframework.remoting.rmi.RmiRegistryFactoryBean.getRegistry(RmiRegistryFactoryBean.java:267) at org.springframework.remoting.rmi.RmiRegistryFactoryBean.getRegistry(RmiRegistryFactoryBean.java:236) at org.springframework.remoting.rmi.RmiRegistryFactoryBean.getRegistry(RmiRegistryFactoryBean.java:193) at org.springframework.remoting.rmi.RmiRegistryFactoryBean.afterPropertiesSet(RmiRegistryFactoryBean.java:164) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAuto wireCapableBeanFactory.java:1477) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowir eCapableBeanFactory.java:1417) ... 26 more Caused by: java.net.BindException: Permission denied

如何修复此错误并在 Openshift 中部署此应用程序？

谢谢！

Answer 1

端口已在使用：4777

使用尚未使用的端口。

或者在重新启动之前确保您的应用程序确实已停止。

Answer 2

在 OpenShift 中，可以使用端口范围绑定到内部 IP：15000 - 35530。因此，您不能使用 4477。请使用 15000-35530 之间的任何内容。此外，请了解这些是内部端口，这意味着您只能在应用程序中使用它们。阅读更多https://www.openshift.com/kb/kb-e1038-i-cant-bind-to-a-port