1.jdbc.properties
jdbc.driverClassName=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://localhost:3306/jkdb?characterEncoding=utf-8 jdbc.username=root jdbc.password=123 c3p0.pool.size.max=20 c3p0.pool.size.min=5 c3p0.pool.size.ini=3 c3p0.pool.size.increment=2