SpringBoot

在springboot启动项目的时候 偶然报错 报错的信息如下，在网上查询了一下，
有的是jar包冲突http://blog.csdn.net/dengchenrong/article/details/77005815
有的是版本问题 http://blog.csdn.net/riyunzhu/article/details/63259718
但是都不能解决我的问题，后来发现是端口号的问题。
电脑上面的QQ采用的是随机端口号，我的项目采用的是8082，QQ升级后随机分配端口，而我的项目当时没有启动，所以QQ占用了8082端口，导致项目不能启动。
解决办法很简单 退出QQ 然后先启动项目占用端口，重新登录QQ的时候，8082占用时它会重新分配端口。
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java
2016-04-26 08:24:17.633 ERROR [localhost-startStop-1]: Error starting Tomcat context: org.springframework.beans.factory.BeanCreationException
2016-04-26 08:24:17.903 ERROR [main]: Application startup failed
org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.boot.context.embedded.EmbeddedServletContainerException:
Unable to start embedded Tomcat at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh
(EmbeddedWebApplicationContext.java:133) at org.springframework.context.support.AbstractApplicationContext.refresh
(AbstractApplicationContext.java:532) at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh
(EmbeddedWebApplicationContext.java:118) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:766) at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:361)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:307)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1191)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1180)
at it.besmart.parkserver.StartServer.main(StartServer.java:13)
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:497)
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:54)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize
(TomcatEmbeddedServletContainer.java:99)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:76) at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.
getTomcatEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:457)
getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:168) at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.
createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:160) at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh
(EmbeddedWebApplicationContext.java:130)
... 14 more