javaWeb 使用cookie显示上次访问网站时间

package de.bvb.cookie;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date; import javax.enterprise.inject.ResolutionException;
import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.swing.text.DateFormatter; /**
* 显示上次访问时间
*
* @author joker
*
*/
public class CookieDemo1 extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException { response.setCharacterEncoding("UTF-8");
response.setContentType("text/html; charset=UTF-8"); PrintWriter out = response.getWriter();
out.write("您上次访问的时间是: "); // 获取上次访问时间
Cookie[] cookies = request.getCookies();
for (int i = 0; cookies != null && i < cookies.length; i++) {
if (cookies[i].getName().equals("lastAccessTime")) {
Long cookieValue = Long.parseLong(cookies[i].getValue());
out.write(new Date(cookieValue).toLocaleString());
}
} // 保存本次访问时间
Cookie cookie = new Cookie("lastAccessTime", System.currentTimeMillis()
+ "");
response.addCookie(cookie); } public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException { doGet(request, response);
} }
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