简单的qq聊天室！！！！！！！！！！！！！！！

				package qq.entity;				import java.io.Serializable;				import java.util.Properties;								/**				 * Request类封装一个请求				 * @author Hehaizhou				 *				 */				public class Request implements Serializable{					private RequestType type;//请求类型					private Properties parameters;//请求所带的参数					private static final long serialVersionUID = 120791203985L;										public Request(RequestType type){						parameters=new Properties();						this.type=type;					}					public void setData(String key,String value){						this.parameters.setProperty(key,value);					}					public String getData(String key){						return this.parameters.getProperty(key);					}					public Properties getAllParameters(){						return this.parameters;					}					public RequestType getType(){						return type;					}								}