SpringBoot2.0.1启动用idea启动可以正常运行，但是mvn编译后启动失败 报错日志如下
12018-04-13 10:18:58.843 [main] WARN o.s.b.w.s.c.AnnotationConfigServletWebServerApplicationContext - [AbstractApplicationContext.java:558] - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.context.ApplicationContextException: Unable to start ServletWebServerApplicationContext due to missing ServletWebServerFactory bean. 22018-04-13 10:18:58.855 [main] ERROR org.springframework.boot.SpringApplication - [SpringApplication.java:842] - Application run failed 3org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.context.ApplicationContextException: Unable to start ServletWebServerApplicationContext due to missing ServletWebServerFactory bean. 4 at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:155) 5 at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:544) 6 at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) 7 at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) 8 at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:395) 9 at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) 10 at org.springframework.boot.SpringApplication.run(SpringApplication.java:1255) 11 at org.springframework.boot.SpringApplication.run(SpringApplication.java:1243) 12 at com.hualala.shopcrm.data.ApplicationMain.main(ApplicationMain.java:27) 13 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 14 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 15 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 16 at java.lang.reflect.Method.invoke(Method.java:498) 17 at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48) 18 at org.springframework.boot.loader.Launcher.launch(Launcher.java:87) 19 at org.springframework.boot.loader.Launcher.launch(Launcher.java:50) 20 at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51) 21Caused by: org.springframework.context.ApplicationContextException: Unable to start ServletWebServerApplicationContext due to missing ServletWebServerFactory bean. 22 at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.getWebServerFactory(ServletWebServerApplicationContext.java:204) 23 at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:178) 24 at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:152) 25 ... 16 common frames omitted 26
问题原因是springBoot2.0 依赖的tomcat版本必须在8.5以上，排查发现项目中配置的tomcat版本为8.0.33 pom中有这样的配置 <tomcat.version>8.0.33</tomcat.version> 改为 <tomcat.version>8.5.29</tomcat.version> 后启动正常