问题:
Spring整合Mybatis时候,出现数据库连接异常:
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.
分析:
找了好半天的原因,最后发现是相关jdbc驱动包版本太低!
解决方法:
下载最新版的mysql-connector-java
即可。
虽然可以连接成功,但是控制台还是提示:
Loading class `com.mysql.jdbc.Driver‘. This is deprecated. The new driver class is `com.mysql.cj.jdbc.Driver‘. The driver is automatically registered via the SPI and manual loading of the driver class is generally unnecessary.
修改一下mybatis-config.xml
:
<!--<property name="driver" value="com.mysql.jdbc.Driver"/>-->
<property name="driver" value="com.mysql.cj.jdbc.Driver"/>