连接数据库

 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();  

String url ="jdbc:mysql://localhost/myDB?user=soft&password=soft1234&useUnicode=true&characterEncoding=8859_1" 

//myDB为数据库名  

Connection conn= DriverManager.getConnection(url);  

7、PostgreSQL数据库  

Class.forName("org.postgresql.Driver").newInstance();  

String url ="jdbc:postgresql://localhost/myDB" 

//myDB为数据库名  

String user="myuser";  

String password="mypassword";  

Connection conn= DriverManager.getConnection(url,user,password);