Reprinted: https://www.cnblogs.com/huanght/p/5841193.html
MySQL, Oracle, Sql Server database JDBC connection mode
MySQL：
First add the MySQL jar package
String url=”jdbc:mysql://localhost:3306/database name”; //Database address
String name=”root”; //Database username
String password=”123456”; //Database user password
Class.forName("com.mysql.jdbc.Driver"); //Load MySQL driver
Connection conn = DriverManager.getConnection(url,name,password); //Connect to the database
Oracle：
Add Oracle jar package
String url=”jdbc:oracle:thin:@localhost:1521:database name”; //database address
String name="database username"; //database username
String password="database user password"; //database user password
Class.forName(“oracle.jdbc.driver.OracleDriver”); //加载oracle驱动
Connection conn = DriverManager.getConnection(url,name,password); //Connect to the database
Sql Server：
Add the jar package of Sql Server
String url=”jdbc:sqlserver://localhost:1433;DatabaseName=database name”; //Database address
Sring name=”database user name”; //database user name
String password="database user password"; //database user password
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver"); //Load Sql Server driver
Connection conn = DriverManager.getConnection(url,name,password); //Connect to the database