一、简介
Spring Boot的父级依赖spring-boot-starter-parent配置之后，当前的项目就是Spring Boot项目。
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.12.RELEASE</version>
</parent>spring-boot-starter-parent也有父级依赖：spring-boot-dependencies（这里规定了很多依赖版本信息）
二、spring-boot-dependencies作用（直接点进pom文件看de）
有默认的打包时的java版本和编码格式
省略version信息，version信息会从父依赖spring-boot-dependencies中得到继承。
识别名字包含application以及特点后缀的配置文件
内置maven工具
三、Spring Boot提供了哪些默认jar包的依赖
可查看该父级依赖的pom文件。大约有200多个依赖包，从中我们可以了解SpringBoot融合了哪些技术栈，便于我们全面了解SpringBoot这门技术。
<!--整体了解SpringBoot所使用的技术栈-->
<properties>
<activemq.version>5.16.5</activemq.version>
<antlr2.version>2.7.7</antlr2.version>
<appengine-sdk.version>1.9.98</appengine-sdk.version>
<artemis.version>2.19.1</artemis.version>
<aspectj.version>1.9.7</aspectj.version>
<assertj.version>3.22.0</assertj.version>
<atomikos.version>4.0.6</atomikos.version>
<awaitility.version>4.2.0</awaitility.version>
<build-helper-maven-plugin.version>3.3.0</build-helper-maven-plugin.version>
<byte-buddy.version>1.12.20</byte-buddy.version>
<cache2k.version>2.6.1.Final</cache2k.version>
<caffeine.version>2.9.3</caffeine.version>
<cassandra-driver.version>4.14.1</cassandra-driver.version>
<classmate.version>1.5.1</classmate.version>
<commons-codec.version>1.15</commons-codec.version>
<commons-dbcp2.version>2.9.0</commons-dbcp2.version>
<commons-lang3.version>3.12.0</commons-lang3.version>
<commons-pool.version>1.6</commons-pool.version>
<commons-pool2.version>2.11.1</commons-pool2.version>
<couchbase-client.version>3.3.4</couchbase-client.version>
<db2-jdbc.version>11.5.7.0</db2-jdbc.version>
<dependency-management-plugin.version>1.0.15.RELEASE</dependency-management-plugin.version>
<derby.version>10.14.2.0</derby.version>
<dropwizard-metrics.version>4.2.14</dropwizard-metrics.version>
<ehcache.version>2.10.9.2</ehcache.version>
<ehcache3.version>3.10.8</ehcache3.version>
<elasticsearch.version>7.17.8</elasticsearch.version>
<embedded-mongo.version>3.4.11</embedded-mongo.version>
<flyway.version>8.5.13</flyway.version>
<freemarker.version>2.3.31</freemarker.version>
<git-commit-id-plugin.version>4.9.10</git-commit-id-plugin.version>
<glassfish-el.version>3.0.4</glassfish-el.version>
<glassfish-jaxb.version>2.3.7</glassfish-jaxb.version>
<glassfish-jstl.version>1.2.6</glassfish-jstl.version>
<graphql-java.version>18.3</graphql-java.version>
<groovy.version>3.0.13</groovy.version>
<gson.version>2.9.1</gson.version>
<h2.version>2.1.214</h2.version>
<hamcrest.version>2.2</hamcrest.version>
<hazelcast.version>5.1.5</hazelcast.version>
<hazelcast-hibernate5.version>2.2.1</hazelcast-hibernate5.version>
<hibernate.version>5.6.14.Final</hibernate.version>
<hibernate-validator.version>6.2.5.Final</hibernate-validator.version>
<hikaricp.version>4.0.3</hikaricp.version>
<hsqldb.version>2.5.2</hsqldb.version>
<htmlunit.version>2.60.0</htmlunit.version>
<httpasyncclient.version>4.1.5</httpasyncclient.version>
<httpclient.version>4.5.14</httpclient.version>
<httpclient5.version>5.1.4</httpclient5.version>
<httpcore.version>4.4.16</httpcore.version>
<httpcore5.version>5.1.5</httpcore5.version>
<infinispan.version>13.0.14.Final</infinispan.version>
<influxdb-java.version>2.22</influxdb-java.version>
<jackson-bom.version>2.13.4.20221013</jackson-bom.version>
<jakarta-activation.version>1.2.2</jakarta-activation.version>
<jakarta-annotation.version>1.3.5</jakarta-annotation.version>
<jakarta-jms.version>2.0.3</jakarta-jms.version>
<jakarta-json.version>1.1.6</jakarta-json.version>
<jakarta-json-bind.version>1.0.2</jakarta-json-bind.version>
<jakarta-mail.version>1.6.7</jakarta-mail.version>
<jakarta-management.version>1.1.4</jakarta-management.version>
<jakarta-persistence.version>2.2.3</jakarta-persistence.version>
<jakarta-servlet.version>4.0.4</jakarta-servlet.version>
<jakarta-servlet-jsp-jstl.version>1.2.7</jakarta-servlet-jsp-jstl.version>
<jakarta-transaction.version>1.3.3</jakarta-transaction.version>
<jakarta-validation.version>2.0.2</jakarta-validation.version>
<jakarta-websocket.version>1.1.2</jakarta-websocket.version>
<jakarta-ws-rs.version>2.1.6</jakarta-ws-rs.version>
<jakarta-xml-bind.version>2.3.3</jakarta-xml-bind.version>
<jakarta-xml-soap.version>1.4.2</jakarta-xml-soap.version>
<jakarta-xml-ws.version>2.3.3</jakarta-xml-ws.version>
<janino.version>3.1.9</janino.version>
<javax-activation.version>1.2.0</javax-activation.version>
<javax-annotation.version>1.3.2</javax-annotation.version>
<javax-cache.version>1.1.1</javax-cache.version>
<javax-jaxb.version>2.3.1</javax-jaxb.version>
<javax-jaxws.version>2.3.1</javax-jaxws.version>
<javax-jms.version>2.0.1</javax-jms.version>
<javax-json.version>1.1.4</javax-json.version>
<javax-jsonb.version>1.0</javax-jsonb.version>
<javax-mail.version>1.6.2</javax-mail.version>
<javax-money.version>1.1</javax-money.version>
<javax-persistence.version>2.2</javax-persistence.version>
<javax-transaction.version>1.3</javax-transaction.version>
<javax-validation.version>2.0.1.Final</javax-validation.version>
<javax-websocket.version>1.1</javax-websocket.version>
<jaxen.version>1.2.0</jaxen.version>
<jaybird.version>4.0.8.java8</jaybird.version>
<jboss-logging.version>3.4.3.Final</jboss-logging.version>
<jdom2.version>2.0.6.1</jdom2.version>
<jedis.version>3.8.0</jedis.version>
<jersey.version>2.35</jersey.version>
<jetty-el.version>9.0.52</jetty-el.version>
<jetty-jsp.version>2.2.0.v201112011158</jetty-jsp.version>
<jetty-reactive-httpclient.version>1.1.13</jetty-reactive-httpclient.version>
<jetty.version>9.4.50.v20221201</jetty.version>
<jmustache.version>1.15</jmustache.version>
<johnzon.version>1.2.19</johnzon.version>
<jolokia.version>1.7.1</jolokia.version>
<jooq.version>3.14.16</jooq.version>
<json-path.version>2.7.0</json-path.version>
<json-smart.version>2.4.8</json-smart.version>
<jsonassert.version>1.5.1</jsonassert.version>
<jstl.version>1.2</jstl.version>
<jtds.version>1.3.1</jtds.version>
<junit.version>4.13.2</junit.version>
<junit-jupiter.version>5.8.2</junit-jupiter.version>
<kafka.version>3.1.2</kafka.version>
<kotlin.version>1.6.21</kotlin.version>
<kotlin-coroutines.version>1.6.4</kotlin-coroutines.version>
<lettuce.version>6.1.10.RELEASE</lettuce.version>
<liquibase.version>4.9.1</liquibase.version>
<log4j2.version>2.17.2</log4j2.version>
<logback.version>1.2.11</logback.version>
<lombok.version>1.18.24</lombok.version>
<mariadb.version>3.0.9</mariadb.version>
<maven-antrun-plugin.version>3.0.0</maven-antrun-plugin.version>
<maven-assembly-plugin.version>3.3.0</maven-assembly-plugin.version>
<maven-clean-plugin.version>3.2.0</maven-clean-plugin.version>
<maven-compiler-plugin.version>3.10.1</maven-compiler-plugin.version>
<maven-dependency-plugin.version>3.3.0</maven-dependency-plugin.version>
<maven-deploy-plugin.version>2.8.2</maven-deploy-plugin.version>
<maven-enforcer-plugin.version>3.0.0</maven-enforcer-plugin.version>
<maven-failsafe-plugin.version>2.22.2</maven-failsafe-plugin.version>
<maven-help-plugin.version>3.2.0</maven-help-plugin.version>
<maven-install-plugin.version>2.5.2</maven-install-plugin.version>
<maven-invoker-plugin.version>3.2.2</maven-invoker-plugin.version>
<maven-jar-plugin.version>3.2.2</maven-jar-plugin.version>
<maven-javadoc-plugin.version>3.4.1</maven-javadoc-plugin.version>
<maven-resources-plugin.version>3.2.0</maven-resources-plugin.version>
<maven-shade-plugin.version>3.3.0</maven-shade-plugin.version>
<maven-source-plugin.version>3.2.1</maven-source-plugin.version>
<maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
<maven-war-plugin.version>3.3.2</maven-war-plugin.version>
<micrometer.version>1.9.6</micrometer.version>
<mockito.version>4.5.1</mockito.version>
<mongodb.version>4.6.1</mongodb.version>
<mssql-jdbc.version>10.2.2.jre8</mssql-jdbc.version>
<mysql.version>8.0.31</mysql.version>
<nekohtml.version>1.9.22</nekohtml.version>
<neo4j-java-driver.version>4.4.11</neo4j-java-driver.version>
<netty.version>4.1.86.Final</netty.version>
<okhttp.version>4.9.3</okhttp.version>
<oracle-database.version>21.5.0.0</oracle-database.version>
<pooled-jms.version>1.2.4</pooled-jms.version>
<postgresql.version>42.3.8</postgresql.version>
<prometheus-client.version>0.15.0</prometheus-client.version>
<quartz.version>2.3.2</quartz.version>
<querydsl.version>5.0.0</querydsl.version>
<r2dbc-bom.version>Borca-SR2</r2dbc-bom.version>
<rabbit-amqp-client.version>5.14.2</rabbit-amqp-client.version>
<rabbit-stream-client.version>0.5.0</rabbit-stream-client.version>
<reactive-streams.version>1.0.4</reactive-streams.version>
<reactor-bom.version>2020.0.26</reactor-bom.version>
<rest-assured.version>4.5.1</rest-assured.version>
<rsocket.version>1.1.3</rsocket.version>
<rxjava.version>1.3.8</rxjava.version>
<rxjava-adapter.version>1.2.1</rxjava-adapter.version>
<rxjava2.version>2.2.21</rxjava2.version>
<saaj-impl.version>1.5.3</saaj-impl.version>
<selenium.version>4.1.4</selenium.version>
<selenium-htmlunit.version>3.61.0</selenium-htmlunit.version>
<sendgrid.version>4.9.3</sendgrid.version>
<servlet-api.version>4.0.1</servlet-api.version>
<slf4j.version>1.7.36</slf4j.version>
<snakeyaml.version>1.30</snakeyaml.version>
<solr.version>8.11.2</solr.version>
<spring-amqp.version>2.4.8</spring-amqp.version>
<spring-batch.version>4.3.7</spring-batch.version>
<spring-data-bom.version>2021.2.6</spring-data-bom.version>
<spring-framework.version>5.3.24</spring-framework.version>
<spring-graphql.version>1.0.3</spring-graphql.version>
<spring-hateoas.version>1.5.2</spring-hateoas.version>
<spring-integration.version>5.5.16</spring-integration.version>
<spring-kafka.version>2.8.11</spring-kafka.version>
<spring-ldap.version>2.4.1</spring-ldap.version>
<spring-restdocs.version>2.0.7.RELEASE</spring-restdocs.version>
<spring-retry.version>1.3.4</spring-retry.version>
<spring-security.version>5.7.6</spring-security.version>
<spring-session-bom.version>2021.2.0</spring-session-bom.version>
<spring-ws.version>3.1.4</spring-ws.version>
<sqlite-jdbc.version>3.36.0.3</sqlite-jdbc.version>
<sun-mail.version>1.6.7</sun-mail.version>
<thymeleaf.version>3.0.15.RELEASE</thymeleaf.version>
<thymeleaf-extras-data-attribute.version>2.0.1</thymeleaf-extras-data-attribute.version>
<thymeleaf-extras-java8time.version>3.0.4.RELEASE</thymeleaf-extras-java8time.version>
<thymeleaf-extras-springsecurity.version>3.0.5.RELEASE</thymeleaf-extras-springsecurity.version>
<thymeleaf-layout-dialect.version>3.0.0</thymeleaf-layout-dialect.version>
<tomcat.version>9.0.70</tomcat.version>
<unboundid-ldapsdk.version>6.0.7</unboundid-ldapsdk.version>
<undertow.version>2.2.22.Final</undertow.version>
<versions-maven-plugin.version>2.10.0</versions-maven-plugin.version>
<webjars-locator-core.version>0.50</webjars-locator-core.version>
<wsdl4j.version>1.6.3</wsdl4j.version>
<xml-maven-plugin.version>1.0.2</xml-maven-plugin.version>
<xmlunit2.version>2.9.0</xmlunit2.version>
</properties>四、管理依赖版本
spring-boot-starter-parent内有默认的依赖版本、jdk版本…
我们想要更换版本，可以通过properties标签中的property标签来覆盖默认的版本
<!--各依赖的版本管理-->
<properties>
<java.version>11.0.17</java.version>
<spring-boot-starter-parent.version>2.3.12.RELEASE</spring-boot-starter-parent.version>
<spring-cloud.version>Hoxton.SR12</spring-cloud.version>
<spring-cloud-alibaba.version>2.2.8.RELEASE</spring-cloud-alibaba.version>
<sprintfox-boot-starter.version>3.0.0</sprintfox-boot-starter.version>
<log4j.version>3.0.0</log4j.version>
</properties>
<dependencys>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<dependencys>总结
以上为个人经验，希望能给大家一个参考，也希望大家多多支持。
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