📄 servletsession.java

📁 jsp动态网站开发技术与实践电子工业出版社随书附赠源代码

💻 JAVA

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package com.chapter6;

import java.io.*; 
import javax.servlet.*; 
import javax.servlet.http.*; 

public class ServletSession extends HttpServlet 
{ 
	public void doPost(HttpServletRequest request,HttpServletResponse response)throws ServletException,IOException
	{
		doGet(request,response);
	} 

	public void doGet(HttpServletRequest request,HttpServletResponse response)throws ServletException,IOException
	{
		response.setContentType("text/html;charset=gb2312");		
		PrintWriter out = response.getWriter(); 
		HttpSession session = request.getSession();
		
		//设置Session值
		session.setAttribute("user","better");
		session.setAttribute("password","qetrw123");
			
		out.println("<html>");
		out.println("<head><title>");
		out.println("Servlet中的Session实例");
		out.println("</title></head>");
		out.println("<body><div align=center>");
		out.println("<h1>");	
		out.println("Servlet中的Session实例");
		out.println("</h1>");	
		out.println("<table width=350  border=1 cellpadding=0 cellspacing=0");
		out.println("<tr><th align=center height=25>名称</td><th align=center height=25>值</td></tr>");
	
		//获取Session值，并打印到页面上		
		java.util.Enumeration e = session.getAttributeNames();
		while(e.hasMoreElements())
		{		
			String sessionName = (String) e.nextElement();
			out.println("<tr><td align=left height=25>"+sessionName+"</td>");
			String sessionValue = (String) session.getAttribute(sessionName);
			out.println("<td align=left height=25>"+sessionValue+"</td></tr>");
		}
		out.println("</table>");
		out.println("<p>session id："+session.getId()+"<p>");
		out.println("<p>session创建时间："+ new java.util.Date(session.getCreationTime())+"<p>");
		out.println("</div></body></html>");
	} 
}

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