src/com/dao/xiaoshouDao.java

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package com.dao;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;




import com.bean.xiaoshou;
import com.util.DBO;
import java.util.List;
import java.sql.ResultSet;
public class xiaoshouDao {
	private DBO db=null;//
	 private xiaoshou xiaoshou=null;
	 public void  insert(xiaoshou xiaoshou) throws Exception{//添加销售
			db=new DBO();
		   db.open();
			
			String sql = "insert into xiaoshou (sp,sl,yh,gk,bz,sj ) values ('"+xiaoshou.getSp()+"','"+xiaoshou.getSl()+"','"+xiaoshou.getYh()+"','"+xiaoshou.getGk()+"','"+xiaoshou.getBz()+"','"+xiaoshou.getSj()+"')";
		
			
			db.update(sql);
			//db.commit();
			db.close();
		
		}
	 public void  modify(xiaoshou xiaoshou) throws Exception{//修改销售
			db=new DBO();
		   db.open();
			
			String sql = "update xiaoshou set  sp='"+xiaoshou.getSp()+"',sl='"+xiaoshou.getSl()+"',yh='"+xiaoshou.getYh()+"',gk='"+xiaoshou.getGk()+"',bz='"+xiaoshou.getBz()+"',sj='"+xiaoshou.getSj()+"' where xsid ='"+xiaoshou.getXsid()+"'";
		
			
			db.update(sql);
			//db.commit();
			db.close();
		
		}
	 public void  delete(String keyid) throws Exception{//删除销售
			db=new DBO();
		        db.open();
			
			String sql = "delete from xiaoshou where xsid='"+keyid+"'";
		
			
			db.update(sql);
			//db.commit();
			db.close();
		
		}
	 public ResultSet  qlist(String sl) throws Exception{//查询销售
		   db=new DBO();
		   db.open();
		   String sql="select * from xiaoshou where  1=1 ";
		if(!sl.equals("")){
			sql+=sl;
			
		}
		   System.out.println("sql="+sql);