超详细！IDEA （初级，新手必看）搭建第一个springboot项目

D:\work\Java\jdk-8u191-windows-x64\bin\java.exe -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=65044 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=localhost -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true "-javaagent:D:\work\IntelliJ IDEA 2018.3.2\lib\idea_rt.jar=65045:D:\work\IntelliJ IDEA 2018.3.2\bin" -Dfile.encoding=UTF-8 -classpath 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.RELEASE\spring-web-5.2.7.RELEASE.jar;E:\M2\repository\org\springframework\spring-beans\5.2.7.RELEASE\spring-beans-5.2.7.RELEASE.jar;E:\M2\repository\org\springframework\spring-webmvc\5.2.7.RELEASE\spring-webmvc-5.2.7.RELEASE.jar;E:\M2\repository\org\springframework\spring-context\5.2.7.RELEASE\spring-context-5.2.7.RELEASE.jar;E:\M2\repository\org\springframework\spring-expression\5.2.7.RELEASE\spring-expression-5.2.7.RELEASE.jar;E:\M2\repository\org\springframework\boot\spring-boot-devtools\2.3.1.RELEASE\spring-boot-devtools-2.3.1.RELEASE.jar;E:\M2\repository\org\springframework\boot\spring-boot\2.3.1.RELEASE\spring-boot-2.3.1.RELEASE.jar;E:\M2\repository\org\springframework\boot\spring-boot-autoconfigure\2.3.1.RELEASE\spring-boot-autoconfigure-2.3.1.RELEASE.jar;E:\M2\repository\org\springframework\spring-core\5.2.7.RELEASE\spring-core-5.2.7.RELEASE.jar;E:\M2\repository\org\springframework\spring-jcl\5.2.7.RELEASE\spring-jcl-5.2.7.RELEASE.jar;E:\M2\repository\io\projectreactor\reactor-core\3.3.6.RELEASE\reactor-core-3.3.6.RELEASE.jar;E:\M2\repository\org\reactivestreams\reactive-streams\1.0.3\reactive-streams-1.0.3.jar com.example.demo.DemoApplication
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 :: Spring Boot ::        (v2.3.1.RELEASE)
2020-06-23 18:38:35.741  INFO 9296 --- [  restartedMain] com.example.demo.DemoApplication         : Starting DemoApplication on PC-20180617ZGXJ with PID 9296 (D:\workspaces\demo\target\classes started by Administrator in D:\workspaces\demo)
2020-06-23 18:38:35.746  INFO 9296 --- [  restartedMain] com.example.demo.DemoApplication         : No active profile set, falling back to default profiles: default
2020-06-23 18:38:35.871  INFO 9296 --- [  restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable
2020-06-23 18:38:35.871  INFO 9296 --- [  restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : For additional web related logging consider setting the 'logging.level.web' property to 'DEBUG'
2020-06-23 18:38:38.339  INFO 9296 --- [  restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Multiple Spring Data modules found, entering strict repository configuration mode!
2020-06-23 18:38:38.342  INFO 9296 --- [  restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data Redis repositories in DEFAULT mode.
2020-06-23 18:38:38.374  INFO 9296 --- [  restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 17ms. Found 0 Redis repository interfaces.
2020-06-23 18:38:39.046  INFO 9296 --- [  restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8080 (http)
2020-06-23 18:38:39.061  INFO 9296 --- [  restartedMain] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2020-06-23 18:38:39.062  INFO 9296 --- [  restartedMain] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.36]
2020-06-23 18:38:39.230  INFO 9296 --- [  restartedMain] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2020-06-23 18:38:39.231  INFO 9296 --- [  restartedMain] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 3359 ms
2020-06-23 18:38:39.705  INFO 9296 --- [  restartedMain] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor'
2020-06-23 18:38:39.936  INFO 9296 --- [  restartedMain] o.s.b.d.a.OptionalLiveReloadServer       : LiveReload server is running on port 35729
2020-06-23 18:38:40.107  INFO 9296 --- [  restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8080 (http) with context path ''
2020-06-23 18:38:40.120  INFO 9296 --- [  restartedMain] com.example.demo.DemoApplication         : Started DemoApplication in 4.988 seconds (JVM running for 6.435)