What is starter in Spring boot

For example, if we were to introduce support for Web MVC in spring boot, we would usually introduce this module spring-boot-starter-web, which, if unpacked, would find nothing in it and only defined some pom dependencies.

After study, starter is mainly used to simplify the use of dependency. For example, when we did MVC to introduce the log component, then we need to find log4j version, and then introduced, now with starter, after the direct use of this, log4j automatically introduced, do not care about the version of these issues.

Partial Starters Dependency:

on

Starter (Group ID:org.springframework.boot)	delivery relies
Spring-boot-starter-log4j2	Org.apache.logging.log4j:log4j-slf4j-impl Org.apache.logging.log4j:log4j-api Org.apache.logging.log4j:log4j-core Org.slf4j:jcl-over-slf4j Org.slf4j:jul-to-slf4j
Spring-boot-starter-logging	Ch.qos.logback:logback-classic Org.slf4j:jcl-over-slf4j Org.slf4j:jul-to-slf4j Org.slf4j:log4j-over-slf4j
Spring-boot-starter-mail	Org.springframework.boot:spring-boot-starter Org.springframework:spring-context Org.springframework:spring-context-support Com.sun.mail:javax.mail
Spring-boot-starter-mobile	Org.springframework.boot:spring-boot-starter Org.springframework.boot:spring-boot-starter-web Org.springframework.mobile:spring-mobile-device
Spring-boot-starter-mustache	Org.springframework.boot:spring-boot-starter Org.springframework.boot:spring-boot-starter-web Com.samskivert:jmustache
spring-boot-starter-redis	org.springframework.boot: Spring-boot-starter Org.springframework.data:spring-data-redis Redis.clients:jedis
spring-boot-starter-remote-shell	org.springframework.boot: Spring-boot-starter Org.springframework.boot:spring-boot-starter-actuator Org.crashub:crash.cli ORG.CRASHUB:CRASH.CONNECTORS.SSH (excludes Org.codehaus.groovy:groovy-all) Org.crashub: Crash.connectors.telnet (excludes Javax.servlet:servlet-api, log4j:log4j, commons-logging:commons-logging) Org.crashub:crash.embed.spring (excludes Org.springframework:spring-web, Org.codehaus.groovy:groovy-all) Org.crashub:crash.plugins.cron (excludes Org.codehaus.groovy:groovy-all) Org.crashub:crash.plugins.mail ( Excludes Org.codehaus.groovy:groovy-all) Org.crashub:crash.shell (excludes Org.codehaus.groovy:groovy-all) Org.codehaus.groovy:groovy
Spring-boot-starter-security	Org.springframework.boot:spring-boot-starter Org.springframework:spring-aop Org.springframework.security:spring-security-config Org.springframework.security:spring-security-web
Spring-boot-starter-social-facebook	Org.springframework.boot:spring-boot-starter Org.springframework.boot:spring-boot-starter-web Org.springframework.social:spring-social-config Org.springframework.social:spring-social-core Org.springframework.social:spring-social-web Org.springframework.social:spring-social-facebook
Spring-boot-starter-social-linkedin	Org.springframework.boot:spring-boot-starter Org.springframework.boot:spring-boot-starter-web Org.springframework.social:spring-social-config Org.springframework.social:spring-social-core Org.springframework.social:spring-social-web Org.springframework.social:spring-social-linkedin
Spring-boot-starter-social-twitter	Org.springframework.boot:spring-boot-starter Org.springframework.boot:spring-boot-starter-web Org.springframework.social:spring-social-config Org.springframework.social:spring-social-core Org.springframework.social:spring-social-web Org.springframework.social:spring-social-twitter
Spring-boot-starter-test	Junit:junit Org.mockito:mockito-core Org.hamcrest:hamcrest-core Org.hamcrest:hamcrest-library Org.springframework:spring-core (excludes commons-logging:commons-logging) Org.springframework:spring-test
Spring-boot-starter-thymeleaf	Org.springframework.boot:spring-boot-starter Org.springframework.boot:spring-boot-starter-web Org.thymeleaf:thymeleaf-spring4 Nz.net.ultraq.thymeleaf:thymeleaf-layout-dialect
Spring-boot-starter-tomcat	Org.apache.tomcat.embed:tomcat-embed-core Org.apache.tomcat.embed:tomcat-embed-el Org.apache.tomcat.embed:tomcat-embed-logging-juli Org.apache.tomcat.embed:tomcat-embed-websocket
Spring-boot-starter-undertow	Io.undertow:undertow-core Io.undertow:undertow-servlet (excludes Org.jboss.spec.javax.servlet:jboss-servlet-api_3.1_spec) Io.undertow:undertow-websockets-jsr Javax.servlet:javax.servlet-api Org.glassfish:javax.el
Spring-boot-starter-validation	Org.springframework.boot:spring-boot-starter Org.apache.tomcat.embed:tomcat-embed-el Org.hibernate:hibernate-validator
Spring-boot-starter-velocity	Org.springframework.boot:spring-boot-starter Org.springframework.boot:spring-boot-starter-web Commons-beanutils:commons-beanutils Commons-collections:commons-collections Commons-digester:commons-digester Org.apache.velocity:velocity Org.apache.velocity:velocity-tools Org.springframework:spring-context-support
Spring-boot-starter-web	Org.springframework.boot:spring-boot-starter Org.springframework.boot:spring-boot-starter-tomcat Org.springframework.boot:spring-boot-starter-validation Com.fasterxml.jackson.core:jackson-databind Org.springframework:spring-web Org.springframework:spring-webmvc
Spring-boot-starter-websocket	Org.springframework.boot:spring-boot-starter Org.springframework.boot:spring-boot-starter-web Org.springframework:spring-messaging Org.springframework:spring-websocket
Spring-boot-starter-ws	Org.springframework.boot:spring-boot-starter Org.springframework.boot:spring-boot-starter-web ORG.SPRINGFRAMEWORK:SPRING-JMS Org.springframework:spring-oxm Org.springframework.ws:spring-ws-core Org.springframework.ws:spring-ws-support

Reference:

1190000004319673?_ea=568367

Http://www.cnblogs.com/cz-xjw/p/6632402.html

http://blog.csdn.net/chszs/article/details/50610474

http://blog.csdn.net/flygoa/article/details/68484439

http://www.jianshu.com/p/85460c1d835a

Http://www.jianshu.com/p/3754c0a5de90

What is starter in Spring boot