javaÁ¬½ÓÊý¾Ý¿â

1.javaÁ¬½ÓOracleÊý¾Ý¿â£º
 Class.forName("oracle.jdbc.driver.OracleDriver");
 String url="jdbc:oracle:thin:@127.0.0.1:1521:È«¾ÖÊý¾Ý¿âÃû";
 String uname="Óû§Ãû";
 String pwd="ÃÜÂë";
 Connection cn =DriverManager.getConnection(url,uname,pwd);
 Statement s=cn.createStatement();
 ResultSet rs=s.executeQuery(sqlÓï¾ä);
2.jdbcÇŽÓodbc
 Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
 String url="jdbc:odbc:odbcÊý¾ÝÔ´";
 String uname="Óû§Ãû";
 String pwd="ÃÜÂë";
 Connection cn =DriverManager.getConnection(url,uname,pwd);
 Statement s=cn.createStatement();
 ResultSet rs=s.executeQuery(sqlÓï¾ä);
3.javaÁ¬½Ómysql
Class.forName("com.mysql.jdbc.Driver");
 String url="jdbc:mysql://127.0.0.1:3306/Êý¾Ý¿âÃû";
 String uname="Óû§Ãû";
 String pwd="ÃÜÂë";
 Connection cn =DriverManager.getConnection(url,uname,pwd);
 Statement s=cn.createStatement();
 ResultSet rs=s.executeQuery(sqlÓï¾ä);