mymessage.java

一个不错的bbs论坛系统．对初学者很有帮助

package com.yhbbs.message.action;

import java.util.List;

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.ActionMessage;
import org.apache.struts.action.ActionMessages;

import com.yhbbs.comm.Pages;
import com.yhbbs.message.biz.MessageBiz;
import com.yhbbs.user.itface.bean.UserSession;
import com.yhbbs.user.online.Postion;
import com.yhbbs.utils.Constants;
import com.yhbbs.utils.ReqUtils;
/**
 * <p>Title:我的站内短消息Action</p>
 * <li>	跳转到查看我的短消息模块，默认为收件箱<br>
 * <br><b>WebSite: www.yyhweb.com</b>
 * <br><b>CopyRight: yyhweb[由由华网]</b>
 * @author stephen
 * @version YHBBS-2.0
 */
public class MyMessage extends Action {
	public ActionForward execute(ActionMapping mapping,ActionForm form,
			  HttpServletRequest request,HttpServletResponse response){
		Postion.ChangPost(request,"查看短消息");
        ActionMessages errors = new ActionMessages();
        // 用户检查
        UserSession curUser = (UserSession) request.getSession(true).getAttribute(Constants.bbsuser);
        if(curUser==null){
        	errors.add("message.no.user",new ActionMessage("message.no.user"));
			saveErrors(request,errors);
			return mapping.findForward("Failure");
        }
        String action=ReqUtils.getString(request, "a");
        int userId = curUser.getUserId();
        String userName = curUser.getUsername();
        int curPage = ReqUtils.getInt(request,"curPage");
		int pagesize = 20;
		int total = 0;
		String link = "";
		int start=0;
		if(curPage>1)      // 如果不是第一页，则从该页的第一条开始
		 	start = (curPage-1)*pagesize;
		
        List msgList = null;
        /**
         * 判断是查看收件箱还是发件箱
         * i  0：发件 1：收件 
         */
        int i = 0;
        if(action!=null && action.equals("send")){
        	i = 0;
        	link = "Message.htm?a=send";
        	request.setAttribute("a", action);
        }else{
        	i = 1;
        	link = "Message.htm";
        }
        
        total = MessageBiz.getMsgCount(userId, i);
    	msgList = MessageBiz.getMessages(userId, start, pagesize, i);
    	Pages pages = new Pages(total, curPage,pagesize,link);
    	
    	request.setAttribute("username", userName);
    	request.setAttribute("start", (start+1));
    	request.setAttribute("msglist", msgList);
    	request.setAttribute("pageInfo",pages.getPageInfo());
    	return mapping.findForward("Success");
	}
}