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报错信息
Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.driver
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
错误的配置文件
username=root
password=123456
driverClassName=com.mysql.jdbc.driver
url=jdbc:mysql:///lf
正确的配置文件
username=root
password=123456
driverClassName=com.mysql.jdbc.Driver
url=jdbc:mysql:///lf