1. 开发时启动
在开发时启动springboot应用，指的是直接运行源码，如在开发时在ide中运行启动类的main()方法。
1.1 在ide中执行启动类的 main() 方法
自从有了springboot后，web项目就不必再放到web容器中运行了，直接运行项目的main()方法就行了：
启动日志如下：
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.1.1.RELEASE)
2020-01-07 21:11:16.365 INFO 84046 --- [ main] com.gitee.funcy.maven.jar.Main : Starting Main on l with PID 84046 (/Users/funcy/IdeaProjects/myproject/springboot-demo/springboot-maven/springboot-jar/target/classes started by funcy in /Users/funcy/IdeaProjects/myproject/springboot-demo)
2020-01-07 21:11:16.368 INFO 84046 --- [ main] com.gitee.funcy.maven.jar.Main : No active profile set, falling back to default profiles: default
2020-01-07 21:11:17.468 INFO 84046 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2020-01-07 21:11:17.497 INFO 84046 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2020-01-07 21:11:17.497 INFO 84046 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/9.0.13
2020-01-07 21:11:17.513 INFO 84046 --- [ main] o.a.catalina.core.AprLifecycleListener : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [/Users/funcy/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.]
2020-01-07 21:11:17.605 INFO 84046 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2020-01-07 21:11:17.605 INFO 84046 --- [ main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1206 ms
2020-01-07 21:11:17.861 INFO 84046 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2020-01-07 21:11:18.096 INFO 84046 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''
2020-01-07 21:11:18.100 INFO 84046 --- [ main] com.gitee.funcy.maven.jar.Main : Started Main in 1.988 seconds (JVM running for 2.34)
2020-01-07 21:11:32.155 INFO 84046 --- [nio-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring DispatcherServlet 'dispatcherServlet'
2020-01-07 21:11:32.155 INFO 84046 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : Initializing Servlet 'dispatcherServlet'
2020-01-07 21:11:32.223 INFO 84046 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : Completed initialization in 68 ms
访问http://localhost:8080/，结果如下：
$ curl http://localhost:8080
hello world
以上启动方式war与jar打包方式都支持。
1.2 mvn spring-boot:run启动
这种方式也是源码启动，在命令行界面进入项目对应的源码目录下，然后执行mvn spring-boot:run命令：
springboot-parent-war $ mvn spring-boot:run
[INFO] Scanning for projects...
[INFO]
[INFO] ---------------< com.gitee.funcy:springboot-parent-war >----------------
[INFO] Building springboot parent war打包方式 1.0.0
[INFO] --------------------------------[ war ]---------------------------------
[INFO]
[INFO] >>> spring-boot-maven-plugin:2.1.1.RELEASE:run (default-cli) > test-compile @ springboot-parent-war >>>
[INFO]
[INFO] --- maven-resources-plugin:3.1.0:resources (default-resources) @ springboot-parent-war ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 0 resource
[INFO] Copying 0 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.8.1:compile (default-compile) @ springboot-parent-war ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 3 source files to /Users/funcy/IdeaProjects/myproject/springboot-demo/springboot-maven/springboot-parent-war/target/classes
[INFO]
[INFO] --- maven-resources-plugin:3.1.0:testResources (default-testResources) @ springboot-parent-war ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /Users/funcy/IdeaProjects/myproject/springboot-demo/springboot-maven/springboot-parent-war/src/test/resources
[INFO]
[INFO] --- maven-compiler-plugin:3.8.1:testCompile (default-testCompile) @ springboot-parent-war ---
[INFO] No sources to compile
[INFO]
[INFO] <<< spring-boot-maven-plugin:2.1.1.RELEASE:run (default-cli) < test-compile @ springboot-parent-war <<<
[INFO]
[INFO]
[INFO] --- spring-boot-maven-plugin:2.1.1.RELEASE:run (default-cli) @ springboot-parent-war ---
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.1.1.RELEASE)
2020-01-07 21:40:50.577 INFO 84448 --- [ main] com.gitee.funcy.mavenparent.war.Main : Starting Main on funcydeMacBook-Pro.local with PID 84448 (/Users/funcy/IdeaProjects/myproject/springboot-demo/springboot-maven/springboot-parent-war/target/classes started by funcy in /Users/funcy/IdeaProjects/myproject/springboot-demo/springboot-maven/springboot-parent-war)
2020-01-07 21:40:50.579 INFO 84448 --- [ main] com.gitee.funcy.mavenparent.war.Main : No active profile set, falling back to default profiles: default
2020-01-07 21:40:51.311 INFO 84448 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2020-01-07 21:40:51.336 INFO 84448 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2020-01-07 21:40:51.337 INFO 84448 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/9.0.13
2020-01-07 21:40:51.347 INFO 84448 --- [ main] o.a.catalina.core.AprLifecycleListener : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [/Users/funcy/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.]
2020-01-07 21:40:51.406 INFO 84448 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2020-01-07 21:40:51.406 INFO 84448 --- [ main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 800 ms
2020-01-07 21:40:51.582 INFO 84448 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2020-01-07 21:40:51.736 INFO 84448 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''
2020-01-07 21:40:51.739 INFO 84448 --- [ main] com.gitee.funcy.mavenparent.war.Main : Started Main in 1.39 seconds (JVM running for 3.943)
2020-01-07 21:41:04.068 INFO 84448 --- [nio-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring DispatcherServlet 'dispatcherServlet'
2020-01-07 21:41:04.069 INFO 84448 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : Initializing Servlet 'dispatcherServlet'
2020-01-07 21:41:04.076 INFO 84448 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : Completed initialization in 7 ms
可以看到，项目启动成功，请求http://localhost:8080，也能获得结果：
$ curl http://localhost:8080
hello world
以上启动方式war与jar打包方式都支持。
2. jar包启动
2.1 java -jar方式启动
对于打成jar包的springboot项目，使用java -jar xxx.jar命令即可启动：
:target $ java -jar springboot-jar-1.0.0.jar
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.1.1.RELEASE)
2020-01-07 21:47:47.075 INFO 85080 --- [ main] com.gitee.funcy.maven.jar.Main : Starting Main on funcydeMacBook-Pro.local with PID 85080 (/Users/funcy/IdeaProjects/myproject/springboot-demo/springboot-maven/springboot-jar/target/springboot-jar-1.0.0.jar started by funcy in /Users/funcy/IdeaProjects/myproject/springboot-demo/springboot-maven/springboot-jar/target)
2020-01-07 21:47:47.077 INFO 85080 --- [ main] com.gitee.funcy.maven.jar.Main : No active profile set, falling back to default profiles: default
2020-01-07 21:47:48.152 INFO 85080 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2020-01-07 21:47:48.186 INFO 85080 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2020-01-07 21:47:48.186 INFO 85080 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/9.0.13
2020-01-07 21:47:48.202 INFO 85080 --- [ main] o.a.catalina.core.AprLifecycleListener : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [/Users/funcy/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.]
2020-01-07 21:47:48.303 INFO 85080 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2020-01-07 21:47:48.303 INFO 85080 --- [ main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1177 ms
2020-01-07 21:47:48.502 INFO 85080 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2020-01-07 21:47:48.677 INFO 85080 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''
2020-01-07 21:47:48.680 INFO 85080 --- [ main] com.gitee.funcy.maven.jar.Main : Started Main in 1.977 seconds (JVM running for 2.398)
访问http://localhost:8080，同样也能获得结果.
2.2 java org.springframework.boot.loader.JarLauncher方式启动
这种启动方式就魔幻了：好好的一个jar，要先解压，然后直接运行里面的类，操作如下：
target $ unzip -d ./tmp springboot-jar-1.0.0.jar
Archive: springboot-jar-1.0.0.jar
creating: ./tmp/META-INF/
inflating: ./tmp/META-INF/MANIFEST.MF
creating: ./tmp/org/
creating: ./tmp/org/springframework/
creating: ./tmp/org/springframework/boot/
··· 省略其他内容
target $ cd tmp/
tmp $ java org.springframework.boot.loader.JarLauncher
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.1.1.RELEASE)
2020-01-07 21:56:00.472 INFO 85431 --- [ main] com.gitee.funcy.maven.jar.Main : Starting Main on funcydeMacBook-Pro.local with PID 85431 (/Users/funcy/IdeaProjects/myproject/springboot-demo/springboot-maven/springboot-jar/target/tmp/BOOT-INF/classes started by funcy in /Users/funcy/IdeaProjects/myproject/springboot-demo/springboot-maven/springboot-jar/target/tmp)
2020-01-07 21:56:00.475 INFO 85431 --- [ main] com.gitee.funcy.maven.jar.Main : No active profile set, falling back to default profiles: default
2020-01-07 21:56:01.589 INFO 85431 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2020-01-07 21:56:01.619 INFO 85431 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2020-01-07 21:56:01.619 INFO 85431 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/9.0.13
2020-01-07 21:56:01.634 INFO 85431 --- [ main] o.a.catalina.core.AprLifecycleListener : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [/Users/funcy/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.]
2020-01-07 21:56:01.722 INFO 85431 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2020-01-07 21:56:01.722 INFO 85431 --- [ main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1203 ms
2020-01-07 21:56:01.931 INFO 85431 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2020-01-07 21:56:02.154 INFO 85431 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''
2020-01-07 21:56:02.157 INFO 85431 --- [ main] com.gitee.funcy.maven.jar.Main : Started Main in 2.025 seconds (JVM running for 2.472)
总结下，步骤如下：
- 进入项目
target/目录 - 解压
jar包到tmp目录：unzip -d ./tmp springboot-jar-1.0.0.jar - 进入
tmp目录：cd tmp/ - 运行：
java org.springframework.boot.loader.JarLauncher
访问http://localhost:8080，也能得到正确结果。
注：这种神奇的启动方式在什么情况下会使用呢？我曾经见过一些项目组，为了安全会把生产的配置文件放在服务器上，在部署项目的时候，先解压jar包，然后替换相应的配置文件，再运行。这种解压jar包、替换配置文件的方式就可以用此启动方式了。当然，这些解压、替换、启动等操作都会写进shell脚本里，自动化运行。
3. war包启动
3.1 java -jar方式启动
项目都打成war包了，还能使用java -jar启动？是的，springboot就是这么方便：
target $ java -jar springboot-war-1.0.0.war
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.1.1.RELEASE)
2020-01-07 22:11:54.284 INFO 85638 --- [ main] com.gitee.funcy.maven.war.Main : Starting Main on funcydeMacBook-Pro.local with PID 85638 (/Users/funcy/IdeaProjects/myproject/springboot-demo/springboot-maven/springboot-war/target/springboot-war-1.0.0.war started by funcy in /Users/funcy/IdeaProjects/myproject/springboot-demo/springboot-maven/springboot-war/target)
2020-01-07 22:11:54.287 INFO 85638 --- [ main] com.gitee.funcy.maven.war.Main : No active profile set, falling back to default profiles: default
2020-01-07 22:11:55.257 INFO 85638 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2020-01-07 22:11:55.286 INFO 85638 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2020-01-07 22:11:55.287 INFO 85638 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/9.0.13
2020-01-07 22:11:55.299 INFO 85638 --- [ main] o.a.catalina.core.AprLifecycleListener : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [/Users/funcy/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.]
2020-01-07 22:11:55.711 INFO 85638 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2020-01-07 22:11:55.711 INFO 85638 --- [ main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1379 ms
2020-01-07 22:11:55.873 INFO 85638 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2020-01-07 22:11:56.031 INFO 85638 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''
2020-01-07 22:11:56.034 INFO 85638 --- [ main] com.gitee.funcy.maven.war.Main : Started Main in 2.066 seconds (JVM running for 2.469)
2020-01-07 22:12:01.189 INFO 85638 --- [nio-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring DispatcherServlet 'dispatcherServlet'
2020-01-07 22:12:01.190 INFO 85638 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : Initializing Servlet 'dispatcherServlet'
2020-01-07 22:12:01.195 INFO 85638 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : Completed initialization in 5 ms
看，项目真的跑起来了！
3.2 java org.springframework.boot.loader.WarLauncher方式启动
springboot 的 jar包 可以解压，然后运行某个类来启动，war包竟然也有这种方法！jar包的启动类是org.springframework.boot.loader.JarLauncher，相应的war包启动类是org.springframework.boot.loader.WarLauncher，步骤如下：
- 进入项目
target/目录 - 解压
war包到tmp目录：unzip -d ./tmp springboot-war-1.0.0.war - 进入
tmp目录：cd tmp/ - 运行：
java org.springframework.boot.loader.WarLauncher
过程如下：
target $ unzip -d ./tmp springboot-war-1.0.0.war
Archive: springboot-war-1.0.0.war
creating: ./tmp/META-INF/
inflating: ./tmp/META-INF/MANIFEST.MF
creating: ./tmp/org/
creating: ./tmp/org/springframework/
creating: ./tmp/org/springframework/boot/
··· 省略其他
target $ cd tmp/
tmp $ java org.springframework.boot.loader.WarLauncher
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.1.1.RELEASE)
2020-01-07 22:17:09.637 INFO 85782 --- [ main] com.gitee.funcy.maven.war.Main : Starting Main on funcydeMacBook-Pro.local with PID 85782 (/Users/funcy/IdeaProjects/myproject/springboot-demo/springboot-maven/springboot-war/target/tmp/WEB-INF/classes started by funcy in /Users/funcy/IdeaProjects/myproject/springboot-demo/springboot-maven/springboot-war/target/tmp)
2020-01-07 22:17:09.640 INFO 85782 --- [ main] com.gitee.funcy.maven.war.Main : No active profile set, falling back to default profiles: default
2020-01-07 22:17:10.576 INFO 85782 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2020-01-07 22:17:10.603 INFO 85782 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2020-01-07 22:17:10.604 INFO 85782 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/9.0.13
2020-01-07 22:17:10.616 INFO 85782 --- [ main] o.a.catalina.core.AprLifecycleListener : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [/Users/funcy/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.]
2020-01-07 22:17:10.725 INFO 85782 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2020-01-07 22:17:10.725 INFO 85782 --- [ main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1046 ms
2020-01-07 22:17:10.942 INFO 85782 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2020-01-07 22:17:11.137 INFO 85782 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''
2020-01-07 22:17:11.140 INFO 85782 --- [ main] com.gitee.funcy.maven.war.Main : Started Main in 1.817 seconds (JVM running for 2.183)
2020-01-07 22:17:15.024 INFO 85782 --- [nio-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring DispatcherServlet 'dispatcherServlet'
2020-01-07 22:17:15.024 INFO 85782 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : Initializing Servlet 'dispatcherServlet'
2020-01-07 22:17:15.029 INFO 85782 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : Completed initialization in 5 ms
可以看到，项目也启动成功了！
3.3 传统方式启动：使用tomcat容器
最初的war包就是放在tomcat等容器中运行的，我们也来试试war包在tomcat容器中运行情况如何。这里说的tomcat容器是指在tomcat官网下载的容器，非springboot内置容器。这里我下载的是apache-tomcat-8.5.47，过程如下：
... 省略tomcat日志输出
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.1.1.RELEASE)
2020-01-07 22:28:23.519 INFO 85904 --- [ost-startStop-1] c.g.funcy.maven.war.StartApplication : Starting StartApplication on funcydeMacBook-Pro.local with PID 85904 (/Users/funcy/Applications/Tomcat/apache-tomcat-8.5.47/webapps/springboot-war-1.0.0/WEB-INF/classes started by funcy in /Users/funcy/Applications/Tomcat/apache-tomcat-8.5.47)
2020-01-07 22:28:23.523 INFO 85904 --- [ost-startStop-1] c.g.funcy.maven.war.StartApplication : No active profile set, falling back to default profiles: default
2020-01-07 22:28:24.256 INFO 85904 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 676 ms
2020-01-07 22:28:24.655 INFO 85904 --- [ost-startStop-1] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2020-01-07 22:28:24.920 INFO 85904 --- [ost-startStop-1] c.g.funcy.maven.war.StartApplication : Started StartApplication in 1.86 seconds (JVM running for 3.98)
07-Jan-2020 22:28:24.974 信息 [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars 至少有一个JAR被扫描用于TLD但尚未包含TLD。 为此记录器启用调试日志记录，以获取已扫描但未在其中找到TLD的完整JAR列表。 在扫描期间跳过不需要的JAR可以缩短启动时间和JSP编译时间。
07-Jan-2020 22:28:24.999 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application archive [/Users/funcy/Applications/Tomcat/apache-tomcat-8.5.47/webapps/springboot-war-1.0.0.war] has finished in [3,468] ms
07-Jan-2020 22:28:25.000 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory 把web 应用程序部署到目录 [/Users/funcy/Applications/Tomcat/apache-tomcat-8.5.47/webapps/docs]
07-Jan-2020 22:28:25.010 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/Users/funcy/Applications/Tomcat/apache-tomcat-8.5.47/webapps/docs] has finished in [10] ms
07-Jan-2020 22:28:25.010 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory 把web 应用程序部署到目录 [/Users/funcy/Applications/Tomcat/apache-tomcat-8.5.47/webapps/manager]
07-Jan-2020 22:28:25.027 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/Users/funcy/Applications/Tomcat/apache-tomcat-8.5.47/webapps/manager] has finished in [17] ms
07-Jan-2020 22:28:25.027 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory 把web 应用程序部署到目录 [/Users/funcy/Applications/Tomcat/apache-tomcat-8.5.47/webapps/examples]
07-Jan-2020 22:28:25.181 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/Users/funcy/Applications/Tomcat/apache-tomcat-8.5.47/webapps/examples] has finished in [154] ms
07-Jan-2020 22:28:25.181 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory 把web 应用程序部署到目录 [/Users/funcy/Applications/Tomcat/apache-tomcat-8.5.47/webapps/ROOT]
07-Jan-2020 22:28:25.191 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/Users/funcy/Applications/Tomcat/apache-tomcat-8.5.47/webapps/ROOT] has finished in [10] ms
07-Jan-2020 22:28:25.191 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory 把web 应用程序部署到目录 [/Users/funcy/Applications/Tomcat/apache-tomcat-8.5.47/webapps/host-manager]
07-Jan-2020 22:28:25.202 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/Users/funcy/Applications/Tomcat/apache-tomcat-8.5.47/webapps/host-manager] has finished in [11] ms
07-Jan-2020 22:28:25.206 信息 [main] org.apache.coyote.AbstractProtocol.start 开始协议处理句柄["http-nio-8080"]
07-Jan-2020 22:28:25.212 信息 [main] org.apache.coyote.AbstractProtocol.start 开始协议处理句柄["ajp-nio-8009"]
07-Jan-2020 22:28:25.213 信息 [main] org.apache.catalina.startup.Catalina.start Server startup in 3717 ms
2020-01-07 22:29:30.754 INFO 85904 --- [nio-8080-exec-2] o.s.web.servlet.DispatcherServlet : Initializing Servlet 'dispatcherServlet'
2020-01-07 22:29:30.767 INFO 85904 --- [nio-8080-exec-2] o.s.web.servlet.DispatcherServlet : Completed initialization in 12 ms
请求http://localhost:8080/springboot-war-1.0.0/，结果如下：
$ curl 'http://localhost:8080/springboot-war-1.0.0/'
hello world
可以看到，已经部署成功了。
4. 总结
| main()方法 | mvn命令 | java -jar | java xxx.WarLauncher | java xxx.JarLauncher | 外置容器 | |
|---|---|---|---|---|---|---|
| war | 支持 | 支持 | 支持 | 支持 | 不支持 | 支持 |
| jar | 支持 | 支持 | 支持 | 不支持 | 支持 | 不支持 |
