1、Oracle8/8i/9i数据库（thin模式）?

Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();?
String?url="jdbc:oracle:thin:@localhost:1521:orcl";?//orcl为数据库的SID?
String?user="test";?
String?password="test";?
Connection?conn=?DriverManager.getConnection(url,user,password);??

　　2、DB2数据库?

Class.forName("com.ibm.db2.jdbc.app.DB2Driver?").newInstance();?
String?url="jdbc:db2://localhost:5000/sample";?//sample为你的数据库名?
String?user="admin";?
String?password="";?
Connection?conn=?DriverManager.getConnection(url,user,password);??

　　3、Sql?Server7.0/2000数据库?

Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver").newInstance();?
String?url="jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=mydb";?
//mydb为数据库?
String?user="sa";?
String?password="";?
Connection?conn=?DriverManager.getConnection(url,user,password);??

　　4、Sybase数据库?

Class.forName("com.sybase.jdbc.SybDriver").newInstance();?
String?url?="?jdbc:sybase:Tds:localhost:5007/myDB";//myDB为你的数据库名?
Properties?sysProps?=?System.getProperties();?
SysProps.put("user","userid");?
SysProps.put("password","user_password");?
Connection?conn=?DriverManager.getConnection(url,?SysProps);??

　　5、Informix数据库?

Class.forName("com.informix.jdbc.IfxDriver").newInstance();?
String?url?=?"jdbc:informix-sqli://123.45.67.89:1533/myDB:INFORMIXSERVER=myserver;?
user=testuser;password=testpassword";?//myDB为数据库名?
Connection?conn=?DriverManager.getConnection(url);??

　　6、MySQL数据库?

Class.forName("org.gjt.mm.mysql.Driver").newInstance();?//或者Class.forName("com.mysql.jdbc.Driver");
String?url?="jdbc:mysql://localhost/myDB?user=soft&password=soft1234&useUnicode=true&characterEncoding=8859_1"?
//myDB<