smartrequest.java

本程序的功能如下： 1）本程序完全采用jsp脚本技术 2）后台管理

package org.xg.upload ;
import java.util.Enumeration;
import java.util.Hashtable;

public class SmartRequest
{
    private Hashtable m_parameters;
    private int m_counter;

    SmartRequest()
    {
        m_parameters = new Hashtable();
        m_counter = 0;
    }

    protected void putParameter(String s,String s1)
    {
        if(s == null)
        {
            throw new IllegalArgumentException("The name of an element cannot be null.");
        }
        if(m_parameters.containsKey(s))
        {
            Hashtable hashtable = (Hashtable)m_parameters.get(s);
            hashtable.put(new Integer(hashtable.size()),s1);
        }
        else
        {
            Hashtable hashtable1 = new Hashtable();
            hashtable1.put(new Integer(0),s1);
            m_parameters.put(s,hashtable1);
            m_counter++;
        }
    }

    public String getParameter(String s)
    {
        if(s == null)
        {
            throw new IllegalArgumentException("Form's name is invalid or does not exist (1305).");
        }
        Hashtable hashtable = (Hashtable)m_parameters.get(s);
        if(hashtable == null)
        {
            return null;
        }
        else
        {
            return(String)hashtable.get(new Integer(0));
        }
    }

    public Enumeration getParameterNames()
    {
        return m_parameters.keys();
    }

    public String[] getParameterValues(String s)
    {
        if(s == null)
        {
            throw new IllegalArgumentException("Form's name is invalid or does not exist (1305).");
        }
        Hashtable hashtable = (Hashtable)m_parameters.get(s);
        if(hashtable == null)
        {
            return null;
        }
        String as[] = new String[hashtable.size()];
        for(int i = 0;i < hashtable.size();i++)
        {
            as[i] = (String)hashtable.get(new Integer(i));
        }
        return as;
    }
}