Oracle：
Class.forName("oracle.jdbc.driver.OracleDriver");
con = DriverManager.getConnection("jdbc:oracle:thin:@127.0.1:1521:orcl", "user","pass");

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SqlServer:
ms的驱动
Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
con = DriverManager.getConnection("jdbc:microsoft:sqlserver://127.0.01:1433;DatabaseName=pub;SelectMethod=cursor","user", "password");
weblogic的
DriverManager.registerDriver(new Driver());
con = DriverManager.getConnection("jdbc:weblogic:mssqlserver4:newsohudb@127.0.0.1:1433","user", "password");

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Mysql:
Class.forName("com.MySQL.jdbc.Driver");
con=DriverManager.getConnection("jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8","user","password");

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