java 连接数据库[转]

  1、Oracle8/8i/9i数据库(thin模式)
Java代码 
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
Java代码 
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
Java代码 
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
Java代码 
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
Java代码 
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
Java代码 
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
Java代码 
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); 


  8、access数据库直连用ODBC的
Java代码 
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver") ;   
String url="jdbc:odbc:Driver={MicroSoft Access Driver (*.mdb)};DBQ="+application.getRealPath("/Data/ReportDemo.mdb");   
Connection conn = DriverManager.getConnection(url,"","");   
Statement stmtNew=conn.createStatement() ;  

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