【发布时间】：2017-06-27 04:56:53
【问题描述】：
我正在向 Elastic Beanstalk (Java) 实例启动带有嵌入式 Tomcat 的 Spring Boot .jar。
server.port=80 在配置文件中，但是 EB 不会让 Tomcat 绑定到端口 80。
是什么阻止了 Tomcat 监听端口 80，我该如何解决？
这是日志的相关部分：
Caused by: org.apache.catalina.LifecycleException: service.getName(): "Tomcat"; Protocol handler start failed
at org.apache.catalina.connector.Connector.startInternal(Connector.java:1000) ~[tomcat-embed-core-8.5.11.jar!/:8.5.11]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ~[tomcat-embed-core-8.5.11.jar!/:8.5.11]
... 21 common frames omitted
Caused by: java.net.SocketException: Permission denied
at sun.nio.ch.Net.bind0(Native Method) ~[na:1.8.0_121]
at sun.nio.ch.Net.bind(Net.java:433) ~[na:1.8.0_121]
at sun.nio.ch.Net.bind(Net.java:425) ~[na:1.8.0_121]
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223) ~[na:1.8.0_121]
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74) ~[na:1.8.0_121]
at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:210) ~[tomcat-embed-core-8.5.11.jar!/:8.5.11]
at org.apache.tomcat.util.net.AbstractEndpoint.start(AbstractEndpoint.java:980) ~[tomcat-embed-core-8.5.11.jar!/:8.5.11]
at org.apache.coyote.AbstractProtocol.start(AbstractProtocol.java:573) ~[tomcat-embed-core-8.5.11.jar!/:8.5.11]
at org.apache.catalina.connector.Connector.startInternal(Connector.java:993) ~[tomcat-embed-core-8.5.11.jar!/:8.5.11]
... 22 common frames omitted
2017-02-09 09:05:28.126 INFO 2451 --- [ main] o.apache.catalina.core.StandardService : Stopping service Tomcat
2017-02-09 09:05:28.156 INFO 2451 --- [ main] utoConfigurationReportLoggingInitializer :
Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
2017-02-09 09:05:28.167 ERROR 2451 --- [ main] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
The Tomcat connector configured to listen on port 80 failed to start. The port may already be in use or the connector may be misconfigured.
Action:
Verify the connector's configuration, identify and stop any process that's listening on port 80, or configure this application to listen on another port.
2017-02-09 09:05:28.175 INFO 2451 --- [ main] ationConfigEmbeddedWebApplicationContext : Closing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@5387f9e0: startup date [Thu Feb 09 09:05:19 UTC 2017]; root of context hierarchy
2017-02-09 09:05:28.178 INFO 2451 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Unregistering JMX-exposed beans on shutdown
【问题讨论】：
-
您可以使用
sudo运行您的应用程序，因为ec2-user不允许绑定到端口80。出于安全考虑，这显然不是一个好习惯。为什么要监听 80 端口？默认情况下，Elastic beanstalk 将代理到端口 8080。 -
我之前在使用 nodejs 时也遇到了同样的问题。在 beanstalk 中，它使用 nginx 作为代理服务器，将 http 请求传递给 nodejs。
标签： java amazon-web-services tomcat spring-boot amazon-elastic-beanstalk