启动日志：
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:: Spring Boot :: (v2.1.1.RELEASE)

2019-06-29 16:17:55.898 INFO 10772 --- [ main] com.example.demo.DemoApplication : Starting DemoApplication on LAPTOP-BST1FU34 with PID 10772 (E:\Users\celing\workspace\demo\target\classes started by admin in E:\Users\celing\workspace\demo)
2019-06-29 16:17:55.903 INFO 10772 --- [ main] com.example.demo.DemoApplication : No active profile set, falling back to default profiles: default
2019-06-29 16:17:57.369 INFO 10772 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2019-06-29 16:17:57.407 INFO 10772 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2019-06-29 16:17:57.407 INFO 10772 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/9.0.13
2019-06-29 16:17:57.422 INFO 10772 --- [ 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: [C:\Program Files\Java\jre1.8.0_211\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:/Program Files/Java/jre1.8.0_211/bin/server;C:/Program Files/Java/jre1.8.0_211/bin;C:/Program Files/Java/jre1.8.0_211/lib/amd64;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\ProgramData\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0;C:\Windows\System32\OpenSSH;C:\Program Files\Intel\WiFi\bin;C:\Program Files\Common Files\Intel\WirelessCommon;".;C:\Program Files\Java\jdk1.8.0_131\bin;E:\apache-tomcat-7.0.92-windows-x64\apache-tomcat-7.0.92\bin";E:\apache-maven-3.6.1\bin;E:\apache-maven-3.6.1\bin;C:\Program Files (x86)\MySQL\MySQL Server 5.5\bin;C:\Program Files (x86)\MySQL\MySQL Server 5.5\bin;E:\bin;E:\VisualSVN Server\bin;;E:\eclipse;;.]
2019-06-29 16:17:57.616 INFO 10772 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2019-06-29 16:17:57.616 INFO 10772 --- [ main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1653 ms
2019-06-29 16:17:58.033 INFO 10772 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2019-06-29 16:17:58.762 INFO 10772 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''
2019-06-29 16:17:58.767 INFO 10772 --- [ main] com.example.demo.DemoApplication : Started DemoApplication in 3.298 seconds (JVM running for 4.441)

pom文件：
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.1.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>

<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demo</name>

<description>Demo project for Spring Boot</description>

<properties>
    <java.version>1.8</java.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>

<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>

    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>io.projectreactor</groupId>
        <artifactId>reactor-test</artifactId>
        <scope>test</scope>
    </dependency>
    
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>

</project>