什么是Starters启动器？
Spring Starters are a set of convenient dependency descriptors that
you can include in your application.
Spring启动器是一个方便使用的依赖集合，或者理解为一个依赖组件的集合。启用对某些功能的支持，只要POM引入对应Starters即可
官方文档地址
https://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#using-boot-starter
启动器相关内容
- spring-boot-starter
Core starter, including auto-configuration support, logging and YAML
核心启动器，包含自动配置，日志和YAML配置
spring-boot-starter-activemq
Starter for JMS messaging using Apache ActiveMQ
消息队列的组件，支持ActiveMQ
spring-boot-starter-amqp
Starter for using Spring AMQP and Rabbit MQ
消息队列的组件，支持Spring AMQP和Rabbit MQ
spring-boot-starter-aop
Starter for aspect-oriented programming with Spring AOP and AspectJ
切面编程支持
spring-boot-starter-artemis
Starter for JMS messaging using Apache Artemis
消息队列的组件，支持Artemis
spring-boot-starter-batch
Starter for using Spring Batch
spring batch批量处理框架支持
spring-boot-starter-cache
Starter for using Spring Framework’s caching support
支持spring的缓存
spring-boot-starter-cloud-connectors
Starter for using Spring Cloud Connectors which simplifies connecting to services in cloud platforms like Cloud Foundry and Heroku
Spring Cloud客户端
spring-boot-starter-data-cassandra
Starter for using Cassandra distributed database and Spring Data Cassandra
支持Cassandra的NoSQL数据库系统
spring-boot-starter-data-cassandra-reactive
Starter for using Cassandra distributed database and Spring Data Cassandra Reactive
支持Cassandra的NoSQL数据库系统
spring-boot-starter-data-couchbase
Starter for using Couchbase document-oriented database and Spring Data Couchbase
支持Couchbase的NoSQL数据库系统
spring-boot-starter-data-couchbase-reactive
Starter for using Couchbase document-oriented database and Spring Data Couchbase Reactive
支持Couchbase的NoSQL数据库系统
spring-boot-starter-data-elasticsearch
Starter for using Elasticsearch search and analytics engine and Spring Data Elasticsearch
支持ElasticSearch的搜索服务器
spring-boot-starter-data-jpa
Starter for using Spring Data JPA with Hibernate
支持JPA功能，注解实现ORM
spring-boot-starter-data-ldap
Starter for using Spring Data LDAP
支持LDAP轻量目录访问协议
spring-boot-starter-data-mongodb
Starter for using MongoDB document-oriented database and Spring Data MongoDB
支持MongoDB分布式文件存储的数据库
spring-boot-starter-data-mongodb-reactive
Starter for using MongoDB document-oriented database and Spring Data MongoDB Reactive
支持MongoDB分布式文件存储的数据库
spring-boot-starter-data-neo4j
Starter for using Neo4j graph database and Spring Data Neo4j
支持MongoDB分布式文件存储的数据库
spring-boot-starter-data-redis
Starter for using Redis key-value data store with Spring Data Redis and the Lettuce client
支持Neo4j一个高性能的NOSQL图形数据库
spring-boot-starter-data-redis-reactive
Starter for using Redis key-value data store with Spring Data Redis reactive and the Lettuce client
支持Redis存储key-value数据库
spring-boot-starter-data-rest
Starter for exposing Spring Data repositories over REST using Spring Data REST
支持Spring Data REST入门，两行代码搞定RESTFul
spring-boot-starter-data-solr
Starter for using the Apache Solr search platform with Spring Data Solr
支持Spring Data Solr搜索引擎
spring-boot-starter-freemarker
Starter for building MVC web applications using FreeMarker views
支持freemarker强大的模板引擎
spring-boot-starter-groovy-templates
Starter for building MVC web applications using Groovy Templates views
支持Groovy Templates模板引擎
spring-boot-starter-hateoas
Starter for building hypermedia-based RESTful web application with Spring MVC and Spring HATEOAS
支持用于支持实现超文本驱动的 REST Web 服务的开发库Spring HATEOAS
spring-boot-starter-integration
Starter for using Spring Integration
支持基于Spring的EIP(Enterprise Integration Patterns,企业集成模式)的实现
spring-boot-starter-jdbc
Starter for using JDBC with the HikariCP connection pool
支持HikariCP jdbc连接池
spring-boot-starter-jersey
Starter for building RESTful web applications using JAX-RS and Jersey. An alternative to spring-boot-starter-web
支持JAX-RS和Jersey标准的RESTful web风格
spring-boot-starter-jooq
Starter for using jOOQ to access SQL databases. An alternative to spring-boot-starter-data-jpa or spring-boot-starter-jdbc
支持jOOQ数据库连接
spring-boot-starter-json
Starter for reading and writing json
支持使用json(一般自己用jackon或者fastjson)
spring-boot-starter-jta-atomikos
Starter for JTA transactions using Atomikos
支持分布式事务JTA的Atomikos实现
spring-boot-starter-jta-bitronix
Starter for JTA transactions using Bitronix
支持分布式事务JTA的Bitronix实现
spring-boot-starter-jta-narayana
Starter for JTA transactions using Narayana
支持分布式事务JTA的Narayana实现
spring-boot-starter-mail
Starter for using Java Mail and Spring Framework’s email sending support
支持Java Mail和spring email邮件发送
spring-boot-starter-mustache
Starter for building web applications using Mustache views
支持无逻辑的模板语法Mustache views
spring-boot-starter-quartz
Starter for using the Quartz scheduler
支持Quartz定时任务功能
spring-boot-starter-security
Starter for using Spring Security
支持Spring Security安全认证框架
spring-boot-starter-test
Starter for testing Spring Boot applications with libraries including JUnit, Hamcrest and Mockito
支持 Spring Boot 的测试功能（包括JUnit/Hamcrest/Mockito）
spring-boot-starter-thymeleaf
Starter for building MVC web applications using Thymeleaf views
支持Thymeleaf 模板语言
spring-boot-starter-validation
Starter for using Java Bean Validation with Hibernate Validator
支持Hibernate Validator校验框架
spring-boot-starter-web
Starter for building web, including RESTful, applications using Spring MVC. Uses Tomcat as the default embedded container
支持web功能，包括Restful、应用、mvc、tomcat等
spring-boot-starter-web-services
Starter for using Spring Web Services
支持webservice功能
spring-boot-starter-webflux
Starter for building WebFlux applications using Spring Framework’s Reactive Web support
支持WebFlux响应式编程
spring-boot-starter-websocket
Starter for building WebSocket applications using Spring Framework’s WebSocket support