Java连接数据库

1、Oracle

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

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 Server

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

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、MySQL

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);  

6、PostgreSQL

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);