import java.sql.*;
import java.awt.*;
public class DBConnection{
        public static void main(String args[]){
                Connection con=null;
  Statement stmt=null;
  String no="",name="";
                ResultSet rs=null;
                Object[][] cells=null;
  try{
    Class.forName("oracle.jdbc.driver.OracleDriver");
    System.out.println("驱动程序已装载");
    System.out.println("即将连接数据库");
  }catch(Exception ex){
    System.out.println("Can not load Jdbc Driver:"+ex.getMessage());
    return;
  }
  try{
    con=DriverManager.getConnection
("jdbc:oracle:thin:@172.17.10.4:1521:prod9i","doc","doc");
    DatabaseMetaData dmd=con.getMetaData();
                                stmt=con.createStatement();    
                                rs=stmt.executeQuery("select * from DOCUMENT_AFFAIR");
                               System.out.println("已连接到数据库:"+dmd.getURL());
                System.out.println("所用的驱动程序是:"+dmd.getDriverName());
                              int i=0;
                              while(!rs.next()){
                                      for(int j=0;j<7;j++)
                                           cells[i][j]=rs.getObject(j+1);
                                      i++;
                             }
                              for(i=0;i<2;i++){
                                           for(int j=0;j<7;j++)
                                                 System.out.println("It is"+cells[i][j]);
                            } 
                            }catch(SQLException ex){
    System.out.println("failed to Connect");
    System.out.println(ex.getMessage());
  }
     }
}

Object[][] cells=new Object[2][7];