https://blog.csdn.net/qq_35170213/article/details/85779083
java.lang.IllegalStateException: Error processing condition on org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$PooledDataSourceConfiguration
....
Caused by: java.lang.IllegalStateException: Failed to introspect Class [com.alibaba.druid.spring.boot.autoconfigure.DruidDataSourceAutoConfigure] from ClassLoader [sun.misc.Launcher$AppClassLoader@58644d46]
....
Caused by: java.lang.NoClassDefFoundError: org/springframework/boot/autoconfigure/jdbc/metadata/DataSourcePoolMetadataProvider
....
Caused by: java.lang.ClassNotFoundException: org.springframework.boot.autoconfigure.jdbc.metadata.DataSourcePoolMetadataProvider
問題所在：
你的durid-spring-boot-starter中 自動配置類
com.alibaba.druid.spring.boot.autoconfigure.DruidDataSourceAutoConfigure依賴的DataSourcePoolMetadataProvider 以及在spring-boot-autoconfigure項目2.0以后刪除掉了！
解決：
druid當然也升級了自己的 starter 了啊！你只需要升級到 1.1.10 即可！
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.1.10 </version>
</dependency>
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原文鏈接：https://blog.csdn.net/qq_35170213/article/details/85779083