online.java

用JSP JAVA 做的 系统 只是初来扎到还望西黄！别乱来哦！

package com.chis.util;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.LinkedList;
import java.util.List;
import java.util.ListIterator;
import com.stframe.form.ActionForm;
import com.stframe.form.DataForm;
import com.stframe.servlet.ActionInstance;

public class OnLine extends ActionInstance {

	public static List log_list = null;
	static {
		log_list = new LinkedList();
	}

	@Override
	public int execute(ActionForm af) throws Exception {
		/**
		 * 在线用户
		 */
		// 设置session在线时间
		int online_time = 900;
		af.getHttpRequest().getSession().setMaxInactiveInterval(online_time);

		String session_id = af.getHttpRequest().getSession().getId();
		String user_id = af.getHttpSession().getAttribute("USERID").toString();
		String corp_name = af.getHttpSession().getAttribute("HBDWMC")
				.toString();
		String ol_loginname = af.getHttpSession().getAttribute("LOGONNAME")
				.toString();
		String ol_name = af.getHttpSession().getAttribute("USERNAME")
				.toString();
		String ol_logintime = af.getHttpSession()
				.getAttribute("THE_LOGIN_DATE").toString();
		String ip = null;
		String date = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss")
				.format((Calendar.getInstance()).getTime());
		if (af.getHttpRequest().getHeader("x-forwarded-for") == null) {
			ip = af.getHttpRequest().getRemoteAddr();
		} else {
			ip = af.getHttpRequest().getHeader("x-forwarded-for");
		}

		if (log_list.size() == 0) {
			DataForm log_df = new DataForm("SYS_ONLINE");
			log_df.set("OL_USERID", user_id);
			log_df.set("CORP_NAME", corp_name);
			log_df.set("OL_SESSIONID", session_id);
			log_df.set("OL_NAME", ol_name);
			log_df.set("OL_LOGINNAME", ol_loginname);
			log_df.set("OL_IP", ip);
			log_df.set("OL_LOGINTIME", ol_logintime);
			log_list.add(log_df);
		} else if (log_list.size() > 0) {

			ListIterator iter = log_list.listIterator(log_list.size());


			int tag = 0;
			while (iter.hasPrevious()) {
				DataForm log_user = (DataForm) iter.previous();
				String onsessionid = log_user.get("OL_SESSIONID").toString();

				//sessionid不添加
				if (onsessionid.equals(session_id)) {
					tag++;
				}
				//如果同个用户登录
				if(log_user.get("OL_USERID").toString().equals(user_id)){
					if (!onsessionid.equals(session_id)) {
						iter.remove();
					}
				}
			}

			if (tag == 0) {
				DataForm log_df = new DataForm("SYS_ONLINE");
				log_df.set("OL_USERID", user_id);
				log_df.set("CORP_NAME", corp_name);
				log_df.set("OL_SESSIONID", session_id);
				log_df.set("OL_NAME", ol_name);
				log_df.set("OL_LOGINNAME", ol_loginname);
				log_df.set("OL_IP", ip);
				log_df.set("OL_LOGINTIME", ol_logintime);
				log_list.add(log_df);
			}

		}

		af.getHttpRequest().setAttribute("log_list", log_list);
		return 1;
	}

}