博客
关于我
新闻发布项目——数据实现类(newsTbDaoImpl)
阅读量:586 次
发布时间:2019-03-11

本文共 4823 字,大约阅读时间需要 16 分钟。

package bdqn.newsMange.Dao.Impl;import java.sql.ResultSet;import java.sql.SQLException;import java.util.ArrayList;import java.util.List;import bdqn.newsMange.Dao.BaseDao;import bdqn.newsMange.Dao.newsTbDao;import bdqn.newsMange.entity.newsTb;/** * 新闻的实现类 * @author Administrator * */public class newsTbDaoImpl extends BaseDao implements newsTbDao {	//查询	public List
getnewsTbAll() { List
newsList=new ArrayList
(); String sql="select * from newsTb"; try { ResultSet rs=executeQurey(sql, null); while(rs.next()){ newsTb ne=new newsTb(); ne.setNewsID(rs.getInt("newsid")); ne.setTitle(rs.getString("title")); ne.setAuthor(rs.getString("author")); ne.setCreateDate(rs.getDate("CreateDate")); ne.setCategoryID(rs.getInt("CategoryID")); ne.setContent(rs.getString("Content")); ne.setModifyDate(rs.getDate("ModifyDate")); ne.setPicPath(rs.getString("PicPath")); ne.setSummary(rs.getString("Summary")); newsList.add(ne); } } catch (ClassNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); }finally{ closeAll(); } return newsList; } //添加 public int addNewsTb(newsTb news) { int rel = 0; List
prams = new ArrayList(); String sql = "insert newsTb(categoryID,summary,title," + "content,picPath,author,createDate,modifyDate) values(?,?,?,?,?,?,?,?)"; prams.add(news.getCategoryID()); prams.add(news.getSummary()); prams.add(news.getTitle()); prams.add(news.getContent()); prams.add(news.getPicPath()); prams.add(news.getAuthor()); prams.add(news.getCreateDate()); prams.add(news.getModifyDate()); try { rel=executeUpdate(sql, prams); } catch (ClassNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); }finally{ closeAll(); } return rel; } //修改 public int updateNewsTb(newsTb news) { int rel=0; String sql="update newsTb set categoryID=?,summary=?,title=?," + "content=?,picPath=?,author=?,createDate=?,modifyDate=? where newsID=?"; Listprams=new ArrayList(); prams.add(news.getCategoryID()); prams.add(news.getSummary()); prams.add(news.getTitle()); prams.add(news.getContent()); prams.add(news.getPicPath()); prams.add(news.getAuthor()); prams.add(news.getCreateDate()); prams.add(news.getModifyDate()); prams.add(news.getNewsID()); try { rel=executeUpdate(sql, prams); } catch (ClassNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); }finally{ closeAll(); } return rel; } //删除 public int addNewsTb(int id) { int rel=0; String sql="delete from newsTb where newsID=?"; Listprams=new ArrayList(); prams.add(id); try { rel=executeUpdate(sql, prams); } catch (ClassNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); } return rel; } //根据新闻的id查询新闻的信息 public newsTb getAllNewsById(int id) { String sql="select * from newsTb where newsID=?"; Listprams=new ArrayList(); prams.add(id); newsTb news=null; try { ResultSet rs=executeQurey(sql, prams); if(rs.next()){ news=new newsTb(); news.setNewsID(rs.getInt("newsid")); news.setTitle(rs.getString("title")); news.setAuthor(rs.getString("author")); news.setCreateDate(rs.getDate("CreateDate")); news.setCategoryID(rs.getInt("CategoryID")); news.setContent(rs.getString("Content")); news.setModifyDate(rs.getDate("ModifyDate")); news.setPicPath(rs.getString("PicPath")); news.setSummary(rs.getString("Summary")); } } catch (ClassNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); }finally{ closeAll(); } return news; } //根据类别id查询新闻的信息 public List
getnewsAllById(int id) { List
nlist=new ArrayList
(); String sql="select * from newsTb where categoryID=?"; List
prams=new ArrayList(); prams.add(id); try { ResultSet rs=executeQurey(sql, prams); newsTb news=null; while(rs.next()){ news=new newsTb(); news.setNewsID(rs.getInt("newsid")); news.setTitle(rs.getString("title")); news.setAuthor(rs.getString("author")); news.setCreateDate(rs.getDate("CreateDate")); news.setCategoryID(rs.getInt("CategoryID")); news.setContent(rs.getString("Content")); news.setModifyDate(rs.getDate("ModifyDate")); news.setPicPath(rs.getString("PicPath")); news.setSummary(rs.getString("Summary")); nlist.add(news); } } catch (ClassNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); }finally{ closeAll(); } return nlist; }}

转载地址:http://jrktz.baihongyu.com/

你可能感兴趣的文章
MYSQL中TINYINT的取值范围
查看>>
MySQL中UPDATE语句的神奇技巧,让你操作数据库如虎添翼!
查看>>
Mysql中varchar类型数字排序不对踩坑记录
查看>>
MySQL中一条SQL语句到底是如何执行的呢?
查看>>
MySQL中你必须知道的10件事,1.5万字!
查看>>
MySQL中使用IN()查询到底走不走索引?
查看>>
Mysql中使用存储过程插入decimal和时间数据递增的模拟数据
查看>>
MySql中关于geometry类型的数据_空的时候如何插入处理_需用null_空字符串插入会报错_Cannot get geometry object from dat---MySql工作笔记003
查看>>