Oracle,SqlServer,MySql数据库链接语句和驱动类

1：oracle：

driver = "oracle.jdbc.driver.OracleDriver";

url = "jdbc:oracle:thin:@localhost:1521:" + dbname;

2：SqlServer:

driver = "com.microsoft.jdbc.sqlserver.SQLServerDriver";

url="jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=" + dbname;

注意：sqlserver 2005 使用的是sqljdbc.jar

sqlserver 2008 使用的是sqljdbc4.jar

3:MySql:

driver = "com.mysql.jdbc.Driver";

url="jdbc:mysql://localhost:3306/" + dbname;