Cannot load driver class: com.mysql.cj.jdbc.Driver

caused by: java.lang.IllegalStateException: Cannot load driver class: com.mysql.cj.jdbc.Driver
    at org.springframework.util.Assert.state(Assert.java:94) ~[spring-core-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.boot.autoconfigure.jdbc.DataSourceProperties.determineDriverClassName(DataSourceProperties.java:224) ~[spring-boot-autoconfigure-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.autoconfigure.jdbc.DataSourceProperties.initializeDataSourceBuilder(DataSourceProperties.java:176) ~[spring-boot-autoconfigure-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration.createDataSource(DataSourceConfiguration.java:43) ~[spring-boot-autoconfigure-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Hikari.dataSource(DataSourceConfiguration.java:81) ~[spring-boot-autoconfigure-2.0.3.RELEASE.jar:2.0.3.RELEASE]

      mysql
      mysql-connector-java
      5.1.6

将之前pom.XML中的mysql依赖替换了一下就可以了

       mysql
       mysql-connector-java
       runtime
       8.0.13