Error reporting when deploying an open source project
ERROR com.alibaba.druid.pool.DruidDataSource - init datasource error, url jdbcmysql://
Obviously, there is a database connection error
But after eliminating the error, I can find the real cause of the error
Database connection address error
Network problems
Wrong user name and password
Finally, it was found that there was a problem with the MySQL
driver version of the open source project, which was inconsistent with the MySQL
I installed
Solution:
Go to POM.XML
and delete the version information of MySQL
, which can be used by default, as shown below
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>