MySql:
Java代码
Class.forName("com.mysql.jdbc.Driver");
String url = "jdbc:mysql://127.0.0.1:3306/myDatabase";
String user = "user";
String password = "password";
Connection conn = DriverManager.getConnection(url, user, password);
Oracle:
Java代码
Class.forName("oracle.jdbc.driver.OracleDriver");
String url = "jdbc:oracle:thin:@127.0.0.1:1521:myOracleSID";
String user = "user";
String password = "password";
Connection conn = DriverManager.getConnection(url, user, password);
SQLServer:
Java代码
Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
String url = "jdbc:microsoft:sqlserver://127.0.0.1:1433;DatabaseName=myDbName";
String user = "user";
String password = "password";
Connection conn = DriverManager.getConnection(url, user, password);

本文介绍了如何使用Java代码连接MySQL、Oracle和SQL Server数据库,包括加载驱动、设置URL、用户名和密码,以及获取数据库连接。
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