java学习笔记（七）数据库链接字符

//连接MSSQL
// static String driver = "com.microsoft.sqlserver.jdbc.SQLServerDriver";
// static String url = "jdbc:sqlserver://localhost;databasename=ProjectDB";
//连接MySQL
// static String driver = "com.mysql.jdbc.Driver";
// static String url = "jdbc:mysql://127.0.0.1:3306/projectdb?characterEncoding=utf8";
//连接Oracle
// static String driver = "oracle.jdbc.driver.OracleDriver";// 连接驱动
// static String url = "jdbc:oracle:thin:@localhost:1521:ORCL";// 访问oracle路径