Springboot Application exits immediately

Question

When I run my spring boot application , it exits immediately (with exit code 0) with this:

 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v2.1.0.RELEASE)

2018-11-27 14:08:31.219  INFO 94920 --- [  restartedMain] c.springbootsecurity.jwt.JwtApplication  : Starting JwtApplication on 1000810002637M.local with PID 94920 (/Users/723305/Documents/spring/springbootSecure/target/classes started by 723305 in /Users/723305/Documents/spring/springbootSecure)
2018-11-27 14:08:31.222  INFO 94920 --- [  restartedMain] c.springbootsecurity.jwt.JwtApplication  : No active profile set, falling back to default profiles: default
2018-11-27 14:08:31.252  INFO 94920 --- [  restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable
2018-11-27 14:08:31.722  INFO 94920 --- [  restartedMain] o.s.b.d.a.OptionalLiveReloadServer       : LiveReload server is running on port 35729
2018-11-27 14:08:31.743  INFO 94920 --- [  restartedMain] c.springbootsecurity.jwt.JwtApplication  : Started JwtApplication in 0.752 seconds (JVM running for 1.294)

Process finished with exit code 0

my pom.xml file:

<?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>

    <groupId>com.springbootSecurity</groupId>
    <artifactId>jwt</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

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

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.0.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

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

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

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

        </plugins>
    </build>        
</project>

Answer 1

Because of you spring boot in pom.xml you did not declare as starter web project it will shut down immediately, it is an expected behavior, now to run as web container you need to add below code in your pom.xml.

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

Answer 2

I've just have the problem with IntelliJ (even with the spring-boot-starter-web) and solve it by editing the launcher and check Include dependencies with "Provided" scope option.

The web app was working fine from the command line.