Command line to run Java code to connect SQLServer, MySQL

1. Adding jar package to the CLASSPATH
   
   
   
2. Java code

// ********************连接SQLServer**************************
import java.sql.*;

public class ConnectSQLServer {
	public static void main(String[] args) {
		Connection connection;
		String driver   = "com.microsoft.sqlserver.jdbc.SQLServerDriver";
		String url      = "jdbc:sqlserver://localhost:1433;DatabaseName=Java8";
		String user     = "sa";
		String password = "fanyi";

		try {
			Class.forName(driver); 
			connection = DriverManager.getConnection(url, user, password);

			if (connection != null) {
				System.out.println("Success.");
			} else {
				System.out.println("Fail.");
			}

			connection.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

}

// ********************连接Mysql**************************

import java.sql.*;

public class ConnectMysql {
	public static void main(String[] args) throws Exception {
		Class.forName("com.mysql.jdbc.Driver");
		String url      = "jdbc:mysql://localhost:3306/hibernate?useSSL=true";
		String user     = "root";
		String password = "fanyi";
		Connection connection = DriverManager.getConnection(url, user, password);

		if (connection != null) {
			System.out.println("Success.");
		} else {
			System.out.println("Fail.");
		}

		connection.close();
	}
}

If not using the IDE, and the need for third-party jar java code packet, in the need to manually add the CLASSPATH. Such JDK to search for dependent jar package