java如何连接数据库

java怎么连接数据库
直接在控制台上编译的 怎么连接数据库

[解决办法]
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);
 
8、JDBC-ODBC桥
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con=DriverManager.getConnection("jdbc:odbc:jsp");
jsp为建立的odbc数据源名，事先要先将SQL server的表设置为数据源。在“管理工具”-“数据源odbc”里用系统DNS添加。



8.Oracle8/8i/9i数据库（thin模式） 
//import java.sql.*; 
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);
Statement stmtNew=conn.createStatement(); 

9.DB2数据库 
//import java.sql.*; 
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);
Statement stmtNew=conn.createStatement(); 

10.Sql Server7.0/2000数据库 
//import java.sql.*; 
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver").newInstance(); 
//String url="jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=db2"; //7.0、2000 
String url="jdbc:sqlserver://localhost:1433;DatabaseName=db2"; //2005 
//db2为数据库名 

String user="sa"; 
String password=""; 
Connection conn= DriverManager.getConnection(url,user,password);
Statement stmtNew=conn.createStatement(); 

11.Sybase数据库 
//import java.sql.*; 
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);
Statement stmtNew=conn.createStatement(); 

12.Informix数据库 
//import java.sql.*; 
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);
Statement stmtNew=conn.createStatement(); 

13.MySQL数据库 
//import java.sql.*; 
//Class.forName("org.gjt.mm.mysql.Driver").newInstance(); 
Class.forName("com.mysql.jdbc.Driver"); 
//String url ="jdbc:mysql://localhost/myDB?user=soft&password=soft1234&useUnicode=true&characterEncoding=8859_1"; 
String url ="jdbc:mysql://localhost:3306/myDB"; 

//myDB为数据库名 
Connection conn= DriverManager.getConnection(url,"root","root");
Statement stmtNew=conn.createStatement(); 

14.PostgreSQL数据库 
//import java.sql.*; 
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); 
Statement stmtNew=conn.createStatement(); 

15.access数据库直连用ODBC的 
//import java.sql.*; 
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,"sa",""); 
Statement stmtNew=conn.createStatement(); 

16.程序计时 
long time1=System.currentTimeMillis(); 
long time2=System.currentTimeMillis(); 
long interval=time2-time1; 

17.延时 
try { 
Thread.sleep(Integer.Parse(%%1)); 
} catch(InterruptedException e) { 
e.printStackTrace(); 
} 

18.连接Excel文件 
//import java.sql.*; 
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); 
String url = "jdbc:odbc:driver={Microsoft Excel Driver (*.xls)};DBQ=D:\\myDB.xls"; // 不设置数据源 
String user="myuser"; 
String password="mypassword"; 
Connection conn= DriverManager.getConnection(url,user,password); 
Statement stmtNew=conn.createStatement();