news.java

新闻中心系统源代码 (struts+sqlserver) 里面附有数据库文件

package StudyNews;

import java.util.*;
import java.sql.ResultSet;

public class News{
	
	protected int id;
	protected String title ;
	protected String content;
	protected String author;
	protected String time;
	protected String keyword ;
	protected int type;
	
	public News(){	}
	
	public void setId(int id) {
		this.id = id;
	}
	
	public void setTitle(String title) {
		this.title = title;
	}
	
	public void setContent(String content) {
		this.content = content;	
	}
	
	public void setAuthor(String author) {
		this.author = author;
	}
	
	public void setTime(String time) {
		this.time = time;
	}
	
	public void setKeyword(String keyword) {
		this.keyword = keyword;	
	}
		
	public void setType(int type) {
		this.type = type;
	}
	
	public int getId(){
		return id;
	}	
	
	public String getTitle(){
		return title;
	}
		
	public String getContent(){
		return content;
	}	
		
	public String getAuthor(){
		return author;
	}	
		
	public String getTime(){
		return time;
	}	
	
	public String getKeyword(){
		return keyword;
	}
	
	public int getType(){
		return type;
	}
		
	public boolean Insert(DB db) throws Exception{
        String strSql;
		ResultSet rs;
		int iMaxId;
        strSql = "Select max(id) From news";
		rs = db.OpenSql(strSql);  
		if ( rs.next()) {
			iMaxId=rs.getInt(1)+1;
		}
		else{
			iMaxId=1;
		}
        
        strSql = "insert into news values(" 
        		+ iMaxId 	+",'"
				+ title 	+"','"
				+ content 	+"','"
				+ author 	+"',sysdate,'"
				+ keyword 	+"',"
				+ type	+")";
		if ( db.ExecSql(strSql)==0) {
			return false;
		}
		else{
			return true;
		}
	
	}
	
	public  boolean Edit(DB db) throws Exception{
        String strSql;
        strSql = "update news set title='"+title+"',"
        		+ " content='"+ content +"',"
        		+ " author='"+ author +"',"
        		+ " keyword='"+ keyword +"',"
        		+ " type="+ type
        		+ " where id="+id;
		if ( db.ExecSql(strSql)==0) {
			return false;
		}
		else{
				return true;
		}
	}	
	
	public static Vector SearchNewsTitle(DB db) throws Exception{
		Vector newsList = new Vector();
		ResultSet rs,rsNest;
        String strSql=null;
		
        strSql = "select * from news order by time desc";
		rs = db.OpenSql(strSql);
		
		while  (rs.next()){
			News news = new News();
			
			news.setId(rs.getInt("id")) ;
			news.setTitle(rs.getString("title")) ;
			news.setTime(rs.getString("time")) ;
			news.setType(rs.getInt("type")) ;
			
			newsList.add(news);
		}
		System.out.println("newsList:        "+newsList.size());
					
		return newsList;
	}
	
	public static Vector SearchRelativeNews(DB db,int newsId,String keyword) throws Exception{
		Vector newsList = new Vector();
		ResultSet rs,rsNest;
        String strSql=null;
		
        strSql = "select * from news where id<>" + newsId +" and title like '%" 
        		+ keyword + "%' order by time desc";
		rs = db.OpenSql(strSql);
		
		while  (rs.next()){
			News news = new News();
			
			news.setId(rs.getInt("id")) ;
			news.setTitle(rs.getString("title")) ;
			news.setTime(rs.getString("time")) ;
			
			newsList.add(news);
		}
		System.out.println("newsList:        "+newsList.size());
					
		return newsList;
	}
	
	public static News GetDetail(DB db,int newsId,boolean bEdit) throws Exception{
		Vector newsList = new Vector();
		ResultSet rs,rsNest;
        String strSql=null;
        String rplContent=null;
		
        strSql = "select * from news where id = " + newsId ;
		rs = db.OpenSql(strSql);
		News news = new News();
		if (rs.next()){
			
			news.setId(newsId) ;
			news.setTitle(rs.getString("title")) ;
			news.setAuthor(rs.getString("author")) ;
			
			rplContent = rs.getString("content");
		
			if(!bEdit){
				rplContent = rplContent.replaceAll("\n","<br>");
			}
			news.setContent(rplContent) ;
			news.setTime(rs.getString("time")) ;
			news.setKeyword(rs.getString("keyword")) ;
			news.setType(rs.getInt("type")) ;
		}
		return news;
	}
	
	public static boolean Delete(DB db,int newsId) throws Exception{
        String strSql;
        strSql = "delete from news where id='"+newsId+"'";
		if ( db.ExecSql(strSql)==0) {
			return false;
		}
		else{
			return true;
		}
	}	
	
}