Here you can find the source of createDriver(String driverClassName)
public static Driver createDriver(String driverClassName) throws SQLException
//package com.java2s; /*// w w w .ja v a 2s . c om * Copyright 1999-2011 Alibaba Group Holding Ltd. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.sql.Driver; import java.sql.SQLException; public class Main { public static Driver createDriver(String driverClassName) throws SQLException { return createDriver(null, driverClassName); } public static Driver createDriver(ClassLoader classLoader, String driverClassName) throws SQLException { if (classLoader != null) { try { return (Driver) classLoader.loadClass(driverClassName).newInstance(); } catch (IllegalAccessException e) { throw new SQLException(e.getMessage(), e); } catch (InstantiationException e) { throw new SQLException(e.getMessage(), e); } catch (ClassNotFoundException e) { throw new SQLException(e.getMessage(), e); } } try { return (Driver) Class.forName(driverClassName).newInstance(); } catch (IllegalAccessException e) { throw new SQLException(e.getMessage(), e); } catch (InstantiationException e) { throw new SQLException(e.getMessage(), e); } catch (ClassNotFoundException e) { // skip } try { return (Driver) Thread.currentThread().getContextClassLoader().loadClass(driverClassName).newInstance(); } catch (IllegalAccessException e) { throw new SQLException(e.getMessage(), e); } catch (InstantiationException e) { throw new SQLException(e.getMessage(), e); } catch (ClassNotFoundException e) { throw new SQLException(e.getMessage(), e); } } }