sybaseconn.java

应用系统的权限管理

package com.gmdq.connection;

import java.sql.*;
/**
 * A JDBC test application for Sybase
 * @author zhoudalei
 * @version 1.0.0
 * @since JDK1.4
 */
public class SybaseConn {
    private final String sybaseDriverName = "com.sybase.jdbc3.jdbc.SybDriver";
    private final String sybaseUrlToConnect ="jdbc:sybase:Tds:10.2.0.121:2688/GOMEDW?charset=cp936&jconnect_version=3"; 
    private Connection myConnection = null;
    /**
     * To load the jdbc driver
     * 
     */
    public SybaseConn()
    {
        try
        {
            Class.forName(sybaseDriverName);
        }catch(ClassNotFoundException ex)
        {
            System.out.println(getErrorMessage(ex,"The Driver loaded error,please contact to your Software Designer!").toString());
        }
    }
    
    public StringBuffer getErrorMessage(Exception ex,String alarmMessage)
    {
        StringBuffer errorStringBuffer = new StringBuffer();
        errorStringBuffer.append(alarmMessage);
        errorStringBuffer.append(ex.getMessage());
        return errorStringBuffer;
    }
    
    /**
     * getConnection method 
     * @return Connection
     */
    public Connection getConnection()
    {
        try
        {
            this.myConnection = DriverManager.getConnection(sybaseUrlToConnect,"DWUSER","1111");
            
        }catch(Exception ex)
        {
            System.out.println(getErrorMessage(ex,"Can not get connection,please contact to your Software Designer!").toString());
        }
        
        return this.myConnection;
        
    }
    public void closeConn(Connection conn)
    {
    	if(conn!=null)
    	{
    		try {
				if(!conn.isClosed())
				{
					conn.close();
				}
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
    	}
    	
    }
    
    /**
     * @param args
     */
    public static void main(String[] args) {
        SybaseConn mySybaseTest = new SybaseConn();
        try
        {
            Connection myConnection = mySybaseTest.getConnection();

            System.out.println("Now begin to excute.............");
        
            PreparedStatement myPreparedStatement = myConnection.prepareStatement("select * from aduser");
            //myPreparedStatement.setInt(1,2);
            ResultSet myResultSet = myPreparedStatement.executeQuery();
            StringBuffer myStringBuffer = new StringBuffer();
            
            while(myResultSet.next())
            {
                
                myStringBuffer.append(myResultSet.getString(1)+"  ");
                myStringBuffer.append(myResultSet.getString(2)+"  \n ");
               
                
            }
            
            System.out.println(new String(myStringBuffer.toString().getBytes("ISO-8859-1"),"GBK"));
        }catch(Exception ex)
        {
            System.out.println(mySybaseTest.getErrorMessage(ex,"Application error,please contact to your Software Designer!").toString());
        }

    }

}