1. springboot automatically creates the address: https: //start.spring.io/
2. Select the web (springMVC)
3. Click Create
4. Create Success
5. decompression, introducing item
6. New Success
7. The reason: plug-in version of the maven of problems, resulting in incompatible with the IDE
The solution: add <maven-jar-plugin.version> 3.1.1 </maven-jar-plugin.version> in pom on it
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>Greenwich.SR1</spring-cloud.version>
<maven-jar-plugin.version>3.1.1</maven-jar-plugin.version>
</properties>
8. Project Right -maven-updata project
9. Start project
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.2.0.RELEASE)
2019-11-03 12:51:06.730 INFO 7196 --- [ main] c.x.springboot.ControllerApplication : Starting ControllerApplication on PC-20190411SFOQ with PID 7196 (D:\Downloads\com.xiaobing.springboot_v1\target\classes started by Administrator in D:\Downloads\com.xiaobing.springboot_v1)
2019-11-03 12:51:06.752 INFO 7196 --- [ main] c.x.springboot.ControllerApplication : No active profile set, falling back to default profiles: default
2019-11-03 12:51:22.173 INFO 7196 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2019-11-03 12:51:23.416 INFO 7196 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2019-11-03 12:51:23.417 INFO 7196 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.27]
2019-11-03 12:51:24.883 INFO 7196 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2019-11-03 12:51:24.884 INFO 7196 --- [ main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 17724 ms
2019-11-03 12:51:26.409 INFO 7196 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2019-11-03 12:51:30.032 INFO 7196 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''
2019-11-03 12:51:30.049 INFO 7196 --- [ main] c.x.springboot.ControllerApplication : Started ControllerApplication in 27.012 seconds (JVM running for 31.285)
10.web access
11. Create a new class mapping class
package com.xiaobing.springboot; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; @RestController @SpringBootApplication public class Example { @RequestMapping("/") String home() { return "Hello World!"; } }
12. Restart Project
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.2.0.RELEASE)
2019-11-03 13:01:44.699 INFO 7192 --- [ main] c.x.springboot.ControllerApplication : Starting ControllerApplication on PC-20190411SFOQ with PID 7192 (D:\Downloads\com.xiaobing.springboot_v1\target\classes started by Administrator in D:\Downloads\com.xiaobing.springboot_v1)
2019-11-03 13:01:44.712 INFO 7192 --- [ main] c.x.springboot.ControllerApplication : No active profile set, falling back to default profiles: default
2019-11-03 13:01:48.641 INFO 7192 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2019-11-03 13:01:48.711 INFO 7192 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2019-11-03 13:01:48.712 INFO 7192 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.27]
2019-11-03 13:01:49.121 INFO 7192 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2019-11-03 13:01:49.122 INFO 7192 --- [ main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 4166 ms
2019-11-03 13:01:49.694 INFO 7192 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2019-11-03 13:01:50.262 INFO 7192 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''
2019-11-03 13:01:50.272 INFO 7192 --- [ main] c.x.springboot.ControllerApplication : Started ControllerApplication in 6.845 seconds (JVM running for 8.017)
13. Access web project
Log Print
2019-11-03 13:02:51.079 INFO 7192 --- [nio-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring DispatcherServlet 'dispatcherServlet'
2019-11-03 13:02:51.080 INFO 7192 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : Initializing Servlet 'dispatcherServlet'
2019-11-03 13:02:51.107 INFO 7192 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : Completed initialization in 26 ms
14. The study concluded, follow-perfect!