SpringBoot项目启动报错

ERROR 2172 --- [ main] o.s.boot.SpringApplication : Application startup failed

org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Jetty servlet container
at org.springframework.boot.context.embedded.jetty.JettyEmbeddedServletContainer.start(JettyEmbeddedServletContainer.java:) ~[spring-boot-1.3..RELEASE.jar:1.3..RELEASE]

at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.startEmbeddedServletContainer(EmbeddedWebApplicationContext.java:) ~[spring-boot-1.3..RELEASE.jar:1.3..RELEASE]

at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:) ~[spring-boot-1.3..RELEASE.jar:1.3..RELEASE]

at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:) ~[spring-context-4.2..RELEASE.jar:4.2..RELEASE]

at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:) ~[spring-boot-1.3..RELEASE.jar:1.3..RELEASE]

at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:) [spring-boot-1.3..RELEASE.jar:1.3..RELEASE]

at org.springframework.boot.SpringApplication.doRun(SpringApplication.java:) [spring-boot-1.3..RELEASE.jar:1.3..RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:) [spring-boot-1.3..RELEASE.jar:1.3..RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:) [spring-boot-1.3..RELEASE.jar:1.3..RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:) [spring-boot-1.3..RELEASE.jar:1.3..RELEASE]

at com.easemob.weichat.gateway.im.IMRoutewayServerStarter.main(IMRoutewayServerStarter.java:) [classes/:na]

Caused by: java.net.BindException: Address already in use

at sun.nio.ch.Net.bind0(Native Method) ~[na:1.8.0_112]

at sun.nio.ch.Net.bind(Net.java:) ~[na:1.8.0_112]

at sun.nio.ch.Net.bind(Net.java:) ~[na:1.8.0_112]

at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:) ~[na:1.8.0_112]

at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:) ~[na:1.8.0_112]

at org.eclipse.jetty.server.ServerConnector.open(ServerConnector.java:) ~[jetty-server-9.2..v20151106.jar:9.2..v20151106]

at org.eclipse.jetty.server.AbstractNetworkConnector.doStart(AbstractNetworkConnector.java:) ~[jetty-server-9.2..v20151106.jar:9.2..v20151106]

at org.eclipse.jetty.server.ServerConnector.doStart(ServerConnector.java:) ~[jetty-server-9.2..v20151106.jar:9.2..v20151106]

at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:) ~[jetty-util-9.2..v20151106.jar:9.2..v20151106]

at org.springframework.boot.context.embedded.jetty.JettyEmbeddedServletContainer.start(JettyEmbeddedServletContainer.java:) ~[spring-boot-1.3..RELEASE.jar:1.3..RELEASE]

...  common frames omitted

解决方法：

1.如果之前启动过别的SpringBoot项目，直接更改端口号即可。

2.如果是新项目，添加相关依赖，具体见 https://bbs.csdn.net/topics/391039574

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