sessionmanager.java

j2se 平台开发的简单ftp service 代码 学习之用,仅供参考

package Server;

import java.util.Hashtable;

public class SessionManager 
{
	private Hashtable sessions = new Hashtable();
	private String p_sessionID = null;
	
	// code to implement Singleton
	public void setSession(String sessionId, String path)
    {  
		sessions.put(sessionId, path);
	}
	
	public String getPath(String sessionId)	  
	{    	
		return (String) sessions.get(sessionId);	
	}
	  
	public synchronized String generateSessionId()
	{
	    // to generate an unique id

		this.p_sessionID = String.valueOf(System.currentTimeMillis());
		return p_sessionID;
	}

	public Hashtable getSessions() {
		return sessions;
	}

}