c3p0配置文件packagecom.itheima.util;importcom.mchange.v2.c3p0.ComboPooledDataSource;importjavax.sql.DataSource;importjava.sql.Connection;importjava.sql.ResultSet;importjava.sql.SQLException;importjava.sql.Statement;publicclassJdbcUtils{/**c3p0连接池被创建时，会自动从src下加载c3p0-config.xml*/privatestaticDataSourceda