用JSP实现的 满好的 大家支持哦 大家多多支持

				// Source File Name:   Request.java
				
				package fileUpload;
				
				import java.util.Enumeration;
				import java.util.Hashtable;
				
				public class Request {
				
					Request() {
						m_parameters = new Hashtable();
						m_counter = 0;
					}
				
					protected void putParameter(String name, String value) {
						if (name == null)
							throw new IllegalArgumentException("The name of an element cannot be null.");
						if (m_parameters.containsKey(name)) {
							Hashtable hashtable = (Hashtable) m_parameters.get(name);
							hashtable.put(new Integer(hashtable.size()), value);
						} else {
							Hashtable hashtable1 = new Hashtable();
							hashtable1.put(new Integer(0), value);
							m_parameters.put(name, 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;
					}
				
					private Hashtable m_parameters;
					private int m_counter;
				}