src/com/dao/htdjDao.java

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




import com.bean.htdj;
import com.util.DBO;
import java.util.List;
import java.sql.ResultSet;
public class htdjDao {
	private DBO db=null;//
	 private htdj htdj=null;
	 public void  insert(htdj htdj) throws Exception{//添加合同登记
			db=new DBO();
		   db.open();
			
			String sql = "insert into htdj (ht,htly,bh,sj,qcr,bd,jf,yf,htys ) values ('"+htdj.getHt()+"','"+htdj.getHtly()+"','"+htdj.getBh()+"','"+htdj.getSj()+"','"+htdj.getQcr()+"','"+htdj.getBd()+"','"+htdj.getJf()+"','"+htdj.getYf()+"','"+htdj.getHtys()+"')";
		
			
			db.update(sql);
			//db.commit();
			db.close();
		
		}
	 public void  modify(htdj htdj) throws Exception{//修改合同登记
			db=new DBO();
		   db.open();
			
			String sql = "update htdj set  ht='"+htdj.getHt()+"',htly='"+htdj.getHtly()+"',bh='"+htdj.getBh()+"',sj='"+htdj.getSj()+"',qcr='"+htdj.getQcr()+"',bd='"+htdj.getBd()+"',jf='"+htdj.getJf()+"',yf='"+htdj.getYf()+"',htys='"+htdj.getHtys()+"' where htdjid ='"+htdj.getHtdjid()+"'";
		
			
			db.update(sql);
			//db.commit();
			db.close();
		
		}
	 public void  delete(String keyid) throws Exception{//删除合同登记
			db=new DBO();
		        db.open();
			
			String sql = "delete from htdj where htdjid='"+keyid+"'";
		
			
			db.update(sql);
			//db.commit();
			db.close();
		
		}
	 public ResultSet  qlist(String sl) throws Exception{//查询合同登记
		   db=new DBO();
		   db.open();
		   String sql="select * from htdj where  1=1 ";
		if(!sl.equals("")){
			sql+=sl;
			
		}
		   System.out.println("sql="+sql);