JAVA联接SQLSERVER的例子

import java.sql.*;import java.io.*;import java.*;public class ConnectUtil{     private java.sql.Connection  con = null;     private final String url = "jdbc:microsoft:sqlserver://";     private final String serverName= "GONGTAO";     private final String portNumber = "1433";     private final String databaseName= "pubs";     private final String userName = "sa";     private final String password = "";     // Informs the driver to use server a side-cursor,      // which permits more than one active statement      // on a connection.     private final String selectMethod = "cursor";           // Constructor     public Connect(){}          private String getConnectionUrl(){          return url+serverName+":"+portNumber+";databaseName="+databaseName+";selectMethod="+selectMethod+";";     }          private java.sql.Connection getConnection(){          try{               Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");                con = java.sql.DriverManager.getConnection(getConnectionUrl(),userName,password);               if(con!=null) System.out.println("Connection Successful!");          }catch(Exception e){               e.printStackTrace();               System.out.println("Error Trace in getConnection() : " + e.getMessage());         }          return con;      }     /*             Display the driver properties, database details      */      public void displayDbProperties(){          java.sql.DatabaseMetaData dm = null;          java.sql.ResultSet rs = null; try{               con= this.getConnection();               if(con!=null){                    dm = con.getMetaData();                    System.out.println("Driver Information");                    System.out.println("\tDriver Name: "+ dm.getDriverName());                    System.out.println("\tDriver Version: "+ dm.getDriverVersion ());                    System.out.println("\nDatabase Information ");                    System.out.println("\tDatabase Name: "+ dm.getDatabaseProductName());                    System.out.println("\tDatabase Version: "+ dm.getDatabaseProductVersion());                    System.out.println("Avalilable Catalogs ");                    rs = dm.getCatalogs();                    while(rs.next()){                         System.out.println("\tcatalog: "+ rs.getString(1));                    }                     rs.close();                    rs = null;                    closeConnection();               }else System.out.println("Error: No active Connection");          }catch(Exception e){               e.printStackTrace();          }     dm=null;     }               private void closeConnection(){          try{               if(con!=null)                    con.close();               con=null;          }catch(Exception e){               e.printStackTrace();          }     }     public static void main(String[] args) throws Exception       {          Connect myDbTest = new Connect();          myDbTest.displayDbProperties();       }}