记录idea报错,
1.引用外部库 mysql-connector-java-8.0.26
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.26</version>
</dependency>
2. 引入最新版的c3p0
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.5.5</version>
</dependency>
3.连接的驱动地址为"com.mysql.cj.jdbc.Driver"
连接驱动改为:com.mysql.cj.jdbc.Driver