String driver=「com.mysql.jdbc.Driver」;
String url="jdbc:mysql://127.0.0.1:3306/test";
String user="root";
String password="root";
Class.forName("driver")
Connection conn= DriverManager.getConnection(url,user,password);mysql
String driver=「oracle.jdbc.driver.OracleDriver」;
String url="jdbc:oracle:thin:@//127.0.0.1:1521/orcl";
String user="root";
String password="root";
Class.forName("driver")
Connection conn= DriverManager.getConnection(url,user,password);sql
String driver=「org.postgresql.Driver」;
String url="jdbc:postgresql://127.0.0.1:5432/postgres";
String user="root";
String password="root";
Class.forName("driver")
Connection conn= DriverManager.getConnection(url,user,password);數據庫
String driver="com.microsoft.sqlserver.jdbc.SQLServerDriver";
String url="jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=mydb";
String user="sa";
String password="";
Class.forName("driver")
Connection conn= DriverManager.getConnection(url,user,password); oracle