articlemag.java

前台:文章浏览、发表留言、Game、Music 后台:文章相关:发表文章、修改文章、删除文章、批量移动文章 栏目相关:增加栏目、修改栏目、删除栏目、栏目链接、栏目排序系统栏目分为系统内部栏目和外部栏目

package com.yhcms.manage.article.action;

import java.io.UnsupportedEncodingException;
import java.util.List;

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

import org.apache.log4j.Logger;
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.yhcms.artclass.dao.ArtClassDaoIm;
import com.yhcms.artclass.itface.ArtClassDao;
import com.yhcms.article.bean.Article;
import com.yhcms.article.dao.ArticleDaoIm;
import com.yhcms.article.itface.ArticleDao;
import com.yhcms.db.DBConnException;
import com.yhcms.manage.page.Pages;
import com.yhcms.utils.ReqUtils;
/**
 * <p>Title:系统后台文章管理Action</p>
 * <li>取得系统的所有文章列表</li>
 * <br><b>CopyRight: yyhweb[由由华网]</b>
 * @author stephen
 * @version YH-2.0
 */
public class ArticleMag extends Action {
	public ActionForward execute(ActionMapping actionmapping,ActionForm form,
			 HttpServletRequest request,HttpServletResponse response) throws UnsupportedEncodingException{
		
			Logger yhlog = Logger.getLogger(ArticleMag.class.getName());
			ActionMessages errors = new ActionMessages();
			
			String action = "";
			int classId = 0;
			int artId = 0;
			int curPage = 0;
			int pageSize = 20;    // pagesize 可以由管理员再后台定义，此处有待改善
			int begin = 0;       //  开始查询的位置
			action = ReqUtils.getString(request,"action"); 
			classId = ReqUtils.getInt(request,"csId");     // 当前栏目Id
			artId = ReqUtils.getInt(request,"artId");
			curPage = ReqUtils.getInt(request,"curPage");  // 当前页数
			
			Article curArticle = null;
			List artList = null;
			String className = ""; //栏目名称
			int total = 0;       //    该栏目文章总数
			String link = "";// 部分相同链接
			String pageInfo = "";//  分页后得到的字符串结果
			Pages pages = null;
			ArticleDao artdao = ArticleDaoIm.getInstance();
			ArtClassDao classdao = ArtClassDaoIm.getInstance();
			
			if(curPage>1){      // 如果不是第一页，则从该页的第一条开始
				begin = (curPage-1)*pageSize;
			}
			
			try {
				// 删除文章
				if(action.equals("delete")){
					if(artId>0){
						if(artdao.delArticle(artId)){	// 删除文章成功
							return actionmapping.findForward("DeleteOk");
						}
					}
					// 删除文章出错或者artId<=0的话,记录一个错误.
					yhlog.info("Delete an article unsuccessfully.");
					errors.add("admin.art.del.fail",new ActionMessage("admin.art.del.fail"));
					saveErrors(request,errors);
					return actionmapping.findForward("Success");	
					
				}
				// 更新文章
				if(action.equals("update")){
					if(artId>0){
						curArticle = artdao.getArticleById(artId);
						if(curArticle!=null){	// 取得文章成功
							request.setAttribute("updateart",curArticle);
							return actionmapping.findForward("Update");
						}
					}
					//	更新文章出错或者artId<=0的话,记录一个错误.
					yhlog.info("Update an article unsuccessfully.!");
					errors.add("admin.art.update.fail",new ActionMessage("admin.art.update.fail"));
					saveErrors(request,errors);
					return actionmapping.findForward("Success");
					
				}
				// 文章列表
				if(classId>0){  //管理某栏目文章
					link = "ArticleMag.html?csId="+classId;
					className = classdao.getNameById(classId);
					total = artdao.getArtNum(classId);
					artList = artdao.getArtByClassId(classId,begin,pageSize);
				}else{			//管理系统所有文章
					link = "ArticleMag.html?";
					total = artdao.getArtNum();
					artList = artdao.getAllArts(begin,pageSize);
				}
				pages = new Pages(total,curPage,pageSize,link);
				pageInfo = pages.getPageInfo();
				
			} catch (DBConnException e) {
				yhlog.warn("Manage system articles,throw an Exception!");
			}
			// 判断分页信息是否为空
			if((pageInfo==null) || (pageInfo.equals(""))){
				StringBuffer sb = new StringBuffer();
				sb.append("<table class='tab' width=100% height=100% cellSpacing=0 cellPadding=0>");
				sb.append("<tr><td>");
				sb.append("&nbsp;&nbsp;");
	 			sb.append("共");
	 			sb.append("<b style=font-size:10pt>");
	 			sb.append(1);
	 			sb.append("</b>");
	 			sb.append("页&nbsp;&nbsp;");
	 			sb.append("<b style=font-size:10pt>");
	 			sb.append(total);
	 			sb.append("</b>");
	 			sb.append("个记录&nbsp;&nbsp;");
	 			sb.append("</td></tr>");
	 			sb.append("<table>");
	 			pageInfo = sb.toString();
	 			sb = null;
			}
			request.setAttribute("csId",classId);
			request.setAttribute("csName",className);
			request.setAttribute("artList",artList);
			request.setAttribute("pageInfo",pageInfo);
			
			return actionmapping.findForward("Success");
	}
}