databaseutilities.java

这是和数据库连接有关的程序.如果有兴趣可以

/*
 * DatabaseUtilities.java
 *
 * Created on 2007年11月14日, 上午11:44
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package jdbcjframe;

/**
 *
 * @author user
 */
import java.awt.event.*;
import java.sql.*;
import java.util.Vector;
import sun.jdbc.odbc.JdbcOdbcDriver;

public class DatabaseUtilities {
    
    /** Creates a new instance of DatabaseUtilities */
    static String jdbcDriver="sun.jdbc.odbc.JdbcOdbcDriver";
    static String dbName="Contacts";
    static String urlRoot="jdbc:odbc:Test";
    private ActionListener exceptionListener=null;
    public DatabaseUtilities() {
        registerDriver();
    }

    private void registerDriver() {
        try{
            Class.forName(jdbcDriver);
            DriverManager.registerDriver(new JdbcOdbcDriver());  
        }catch(ClassNotFoundException e){
            reportException(e.getMessage());
        }catch(SQLException e){
        reportException(e.getMessage());
        }
    }
       public void execute(String SQLCommand){
           String url=urlRoot+dbName;
           try{
           Connection con=DriverManager.getConnection(url);
           Statement stmt=con.createStatement();
           stmt.execute(SQLCommand);
           con.close();
           }catch(SQLException e){
             reportException(e.getMessage());
           }
       }
       public void setExceptionListener(ActionListener exceptionListener){
          this.exceptionListener=exceptionListener;
       }
       
    private void reportException(String exception) {
        if(exceptionListener!=null){
        ActionEvent evt=new ActionEvent(this,0,exception);
        exceptionListener.actionPerformed(evt);
        }
        else{
        System.err.println(exception);
        
        }
    }
    
}