DBCP 数据源获取连接

Main 

package p1;

import com.JdbcUtils;
import org.apache.commons.dbcp.BasicDataSource;
import org.apache.commons.dbcp.BasicDataSourceFactory;
import javax.sql.DataSource;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.Properties;

public class Main {
    public static void main(String[] args) throws Exception {
        // f1();
        f2();
    }

    private static void f1() throws SQLException {
        Connection conn = getDataSource().getConnection();
        String sql = "UPDATE `user` set money=666 where id=?";
        Object[] objs = new Object[]{"1"};
        int res = JdbcUtils.executeUpdate(conn, sql, objs);
        System.out.println(res);
    }

    private static DataSource getDataSource() throws SQLException {
        BasicDataSource bs = new BasicDataSource();
        bs.setDriverClassName("com.mysql.jdbc.Driver");
        bs.setUrl("jdbc:mysql://localhost:3306/jdbc");
        bs.setUsername("root");
        bs.setPassword("xxx");
        bs.setInitialSize(20);
        return bs;
    }

    private static void f2() throws Exception {
        Connection conn = getDataSource2().getConnection();
        String sql = "UPDATE `user` set money=666 where id=?";
        Object[] objs = new Object[]{"1"};
        int res = JdbcUtils.executeUpdate(conn, sql, objs);
        System.out.println(res);
    }

    private static DataSource getDataSource2() throws Exception {
        Properties prop = new Properties();
        prop.load(new Main().getClass().getClassLoader().getResourceAsStream("dbcpConfig.properties"));
        DataSource dataSource = BasicDataSourceFactory.createDataSource(prop);
        return dataSource;
    }
}

dbcpConfig.properties

driverClassName=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/jdbc
username=root
password=xxx
initialSize=20