在ECLIPSE里调试SPRING BOOT程序TOMCAT始终启动不了，求指教

[ilearn]

在application.properties里面无论修改
server.port: 8773
端口设为什么，都启动不了

***************************
APPLICATION FAILED TO START
***************************

Description:

The Tomcat connector configured to listen on port 8773 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 8773, or configure this application to listen on another port.

[ilearn]

org.apache.catalina.LifecycleException: Failed to start component [Connector[HTTP/1.1-8773]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.StandardService.addConnector(StandardService.java:225) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.addPreviouslyRemovedConnectors(TomcatEmbeddedServletContainer.java:265) [spring-boot-1.5.13.RELEASE.jar:1.5.13.RELEASE] at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.start(TomcatEmbeddedServletContainer.java:208) [spring-boot-1.5.13.RELEASE.jar:1.5.13.RELEASE] at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.startEmbeddedServletContainer(EmbeddedWebApplicationContext.java:297) [spring-boot-1.5.13.RELEASE.jar:1.5.13.RELEASE] at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:145) [spring-boot-1.5.13.RELEASE.jar:1.5.13.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:546) [spring-context-4.3.17.RELEASE.jar:4.3.17.RELEASE] at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) [spring-boot-1.5.13.RELEASE.jar:1.5.13.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) [spring-boot-1.5.13.RELEASE.jar:1.5.13.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) [spring-boot-1.5.13.RELEASE.jar:1.5.13.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) [spring-boot-1.5.13.RELEASE.jar:1.5.13.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.13.RELEASE.jar:1.5.13.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.13.RELEASE.jar:1.5.13.RELEASE] at com.slyynewwebservice.SlyynewwebserviceApplication.main(SlyynewwebserviceApplication.java:22) [classes/:na] Caused by: org.apache.catalina.LifecycleException: Protocol handler start failed at org.apache.catalina.connector.Connector.startInternal(Connector.java:1020) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ~[tomcat-embed-core-8.5.31.jar:8.5.31] ... 13 common frames omitted Caused by: java.lang.IllegalArgumentException: Alias name [tomcat] does not identify a key entry at org.apache.tomcat.util.net.AbstractJsseEndpoint.createSSLContext(AbstractJsseEndpoint.java:116) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.tomcat.util.net.AbstractJsseEndpoint.initialiseSsl(AbstractJsseEndpoint.java:87) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:225) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.tomcat.util.net.AbstractEndpoint.start(AbstractEndpoint.java:1150) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.coyote.AbstractProtocol.start(AbstractProtocol.java:591) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.connector.Connector.startInternal(Connector.java:1018) ~[tomcat-embed-core-8.5.31.jar:8.5.31] ... 14 common frames omitted Caused by: java.io.IOException: Alias name [tomcat] does not identify a key entry at org.apache.tomcat.util.net.jsse.JSSEUtil.getKeyManagers(JSSEUtil.java:229) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.tomcat.util.net.AbstractJsseEndpoint.createSSLContext(AbstractJsseEndpoint.java:114) ~[tomcat-embed-core-8.5.31.jar:8.5.31] ... 19 common frames omitted 2018-05-17 16:14:40.806 INFO 7260 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat] 2018-05-17 16:14:41.293 INFO 7260 --- [ main] utoConfigurationReportLoggingInitializer : Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled. 2018-05-17 16:14:41.333 ERROR 7260 --- [ main] o.s.b.d.LoggingFailureAnalysisReporter : *************************** APPLICATION FAILED TO START *************************** Description: The Tomcat connector configured to listen on port 8773 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 8773, or configure this application to listen on another port. 2018-05-17 16:14:41.403 INFO 7260 --- [ main] ationConfigEmbeddedWebApplicationContext : Closing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@52e677af: startup date [Thu May 17 16:13:49 CST 2018]; root of context hierarchy 2018-05-17 16:14:41.406 INFO 7260 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Unregistering JMX-exposed beans on shutdown

[tianfang]

The Tomcat connector configured to listen on port 8773 failed to start 端口已经被占用 ，可能是另外一个已经在运行。重新启动eclipse或换端口试试

[ilearn]

引用 1 楼 tianfang 的回复:

The Tomcat connector configured to listen on port 8773 failed to start 端口已经被占用 ，可能是另外一个已经在运行。重新启动eclipse或换端口试试

我是WINDOWS开发环境，只有一个TOMCAT用来测试用，换过其它端口也不行

[zhaohuaxishiwzw]

端口被占用了吧，打开任务管理器看是否有JAVA进程在运行，如果有可能就是该进程占用该端口。 或者，命令行netstat -ano查看端口号 8773是不是被别的程序占用了，查看进程ID，然后在任务管理器查看该进程ID的进程是什么。 如果都不是，那是不是系统禁止该端口使用。。。