Spring Boot 2.7.8以后mysql-connector-java与mysql-connector-j

        如果升级到Spring Boot 2.7.8，可以看到因为找不到mysql-connector-java依赖而出现错误。

配置：

org.springframework.bootspring-boot-starter-parent2.7.14             mysql    mysql-connector-java    

错误信息：

[INFO] Scanning for projects...[ERROR] [ERROR] Some problems were encountered while processing the POMs:[ERROR] 'dependencies.dependency.version' for mysql:mysql-connector-java:jar is missing. @ line 54, column 15 @ [ERROR] The build could not read 1 project -> [Help 1]

这是因为 Spring Boot 2.7.8 中 mysql-connector-java 不再由依赖管理来管理。

Release v2.7.8 · spring-projects/spring-boot · GitHub

        现有mysql的groupId：mysql-connector-java是一个遗留形式，用一个单词“mysql”维护了很长时间。

https://blogs.oracle.com/mysql/post/mysql-connectorj-has-new-maven-coordinates

        8.0.31（2022年10月14日发布）和8.0.32（2023年1月18日发布）两个版本分别与mysql-connector-java/mysql-connector-j并行维护，今年春季boot 2.7.8 从那时起 mysql:mysql-connector-java 已从依赖管理中删除。

Maven Central Repository SearchOfficial search by the maintainers of Maven Central Repositoryhttps://search.maven.org/artifact/mysql/mysql-connector-java

Maven Central Repository SearchOfficial search by the maintainers of Maven Central Repositoryhttps://search.maven.org/artifact/com.mysql/mysql-connector-j

        因此，从现在开始您可以使用 com.mysql:mysql-connector-j 依赖项。

        自 Spring Boot 2.7.8 起，更改 mysql:mysql-connector-java -> com.mysql:mysql-connector-j 并删除 mysql-connector-java 依赖管理

com.mysqlmysql-connector-j

mysql:mysql-connector-java -> com.mysql:mysql-connector-j 변경 및 Spring Boot 2.7.8 이후 mysql-connector-java 의존성 관리 제거

来源地址：https://blog.csdn.net/yangyangye/article/details/131959080