C3P0 database connection pooling-mode 2 How to read a configuration file

Package Com.itheima.c_c3p0;import Java.sql.connection;import Java.sql.sqlexception;import Javax.sql.DataSource; Import Com.mchange.v2.c3p0.combopooleddatasource;public class C3p0utils {//provide connection pool private static DataSource DataSource = New Combopooleddatasource ("Day17_config");  public static Connection getconnection () throws sqlexception{//the return datasource.getconnection () obtained from the connection pool; /** * Data source, Connection pool * @return */public static DataSource Getdatasource () {return DataSource;}}