updateaction.java

struts+javabean写的聊天程序

package com.chat.struts.action;

import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.DynaActionForm;

import com.chat.util.Messages;
import com.chat.util.OnlineUserListener;
import com.chat.util.SuperUtil;

public class UpdateAction extends Action {

	@SuppressWarnings("static-access")
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		DynaActionForm messageForm = (DynaActionForm) form;
		String myId = SuperUtil.isoToGB2312(messageForm.getString("myid")); // youid
		String toId = SuperUtil.isoToGB2312(messageForm.getString("toid")); // toid
		String message = SuperUtil.isoToGB2312(messageForm.getString("message")); // 聊天内容

		Messages.getInstance().addMessage(toId, myId, message);
		Map toMap = Messages.getInstance().getMessage(toId); // 发消息
		Map fromMap = Messages.getInstance().getMessage(myId); // 您收到的消息
		request.getSession().setAttribute("fromMessages", fromMap);
		request.getSession().setAttribute("toUsername",
				OnlineUserListener.getUsernameByUserid(toId));
		request.getSession().setAttribute("toMessages", toMap);// 您发给人家的消息的内容
		messageForm.set("myid", null);
		messageForm.set("toid", null);
		messageForm.set("message", null);
		return mapping.findForward("success");
	}
}