23. SpringApplication

SpringApplication类提供了一种快捷方式,用于从main()方法启动Spring应用。多数情况下,你可以将该任务委托给SpringApplication.run静态方法:

public static void main(String[] args){
SpringApplication.run(MySpringConfiguration.class, args);
}

当应用启动时,你应该会看到类似下面的东西:

. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: v2.0.0.RELEASE
2013-07-31 00:08:16.117 INFO 56603 --- [ main] o.s.b.s.app.SampleApplication : Starting SampleApplication v0.1.0 on mycomputer with PID 56603 (/apps/myapp.jar started by pwebb)
2013-07-31 00:08:16.166 INFO 56603 --- [ main] ationConfigServletWebServerApplicationContext : Refreshing org.springframework.boot.web.ser[email protected]6e5a8246: startup date [Wed Jul 31 00:08:16 PDT 2013]; root of context hierarchy
2014-03-04 13:09:54.912 INFO 41370 --- [ main] .t.TomcatServletWebServerFactory : Server initialized with port: 8080
2014-03-04 13:09:56.501 INFO 41370 --- [ main] o.s.b.s.app.SampleApplication : Started SampleApplication in 2.992 seconds (JVM running for 3.658)

默认情况下会显示INFO级别的日志信息,包括一些相关的启动详情,比如启动应用的用户等。如果你需要INFO之外的日志级别,你可以参考章节 26.4 日志级别进行设置。