announcebiz.java

一个不错的bbs论坛系统．对初学者很有帮助

package com.yhbbs.bbs.biz;

import java.sql.SQLException;
import java.util.List;
import org.apache.log4j.Logger;
import com.yhbbs.bbs.dao.AnnounceDaoIm;
import com.yhbbs.bbs.itface.AnnceLink;
import com.yhbbs.bbs.itface.Announce;
import com.yhbbs.bbs.itface.dao.AnnounceDao;

/**
 * <p>Title:论坛公告相关操作Bean</p>
 * <li> 论坛公告的所有相关操作<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 AnnounceBiz {

	private static Logger bbslog = Logger.getLogger(AnnounceBiz.class);
	
	private static AnnounceDao andao = AnnounceDaoIm.getInstance();
	
	/**
	 * @param forumId 论坛Id
	 * @return 获得某论坛的最新公告
	 */
	public static AnnceLink getNewAnnce(int forumId){
		try {
			return andao.getAnnceLink(forumId);
		}catch(SQLException e) {
			bbslog.error("Throws a SqlException when invoke getNewAnnce(int forumId):\n" + e.toString());
		}
		return null;
	}

	/**
	 * @param anId 公告Id
	 * @return 公告
	 */
	public static Announce getOneAnnce(int anId){
		
		try {
			return andao.getOneAnnce(anId);
		}catch(SQLException e) {
			bbslog.error("Throws a SqlException when invoke getOneAnnce(int anId):\n" + e.toString());
		}
		return null;
	}
	
	/**
	 * @param forumId 论坛Id
	 * @return 取得某论坛所有公告
	 */
	public static List getAllAnnce(int forumId) {
		try {
			return andao.getAllAnnce(forumId);
			
		}catch(SQLException e) {
			bbslog.error("Throws a SqlException when invoke getAllAnnce(int forumId):\n" + e.toString());
		}
		return null;
	}

	/** 编辑公告
	 * @param announce 公告
	 */
	public static void editAnnce(Announce announce){
		
		try {
			andao.editAnnce(announce);
		}catch(SQLException e) {
			bbslog.error("Throws a SqlException when invoke editAnnce(Announce announce):\n" + e.toString());
		}
		return;
	}

	/** 删除公告
	 * @param anId 公告Id
	 */
	public static void deleteAnnce(int anId) {
		try {
			andao.deleteAnnce(anId);
		}catch(SQLException e) {
			bbslog.error("Throws a SqlException when invoke deleteAn(int anId):\n" + e.toString());
		}
		return;
	}

	/** 增加一个公告
	 * @param announce 公告
	 */
	public static void postAnnce(Announce announce){
		try {
			int maxId = (andao.getMaxId()+1);
			announce.setId(maxId);
			andao.postAnnce(announce);
		}catch(SQLException e) {
			bbslog.error("Throws a SqlException when invoke postAnnce(Announce announce):\n" + e.toString());
		}
		return;
	}

}