src/com/dao/cheliangDao.java

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




import com.bean.cheliang;
import com.util.DBO;
import java.util.List;
import java.sql.ResultSet;
public class cheliangDao {
	private DBO db=null;//
	 private cheliang cheliang=null;
	 public void  insert(cheliang cheliang) throws Exception{//添加车辆
			db=new DBO();
		   db.open();
			
			String sql = "insert into cheliang (cl,cx,gzsj,zwnl,bz,sm ) values ('"+cheliang.getCl()+"','"+cheliang.getCx()+"','"+cheliang.getGzsj()+"','"+cheliang.getZwnl()+"','"+cheliang.getBz()+"','"+cheliang.getSm()+"')";
		
			
			db.update(sql);
			//db.commit();
			db.close();
		
		}
	 public void  modify(cheliang cheliang) throws Exception{//修改车辆
			db=new DBO();
		   db.open();
			
			String sql = "update cheliang set  cl='"+cheliang.getCl()+"',cx='"+cheliang.getCx()+"',gzsj='"+cheliang.getGzsj()+"',zwnl='"+cheliang.getZwnl()+"',bz='"+cheliang.getBz()+"',sm='"+cheliang.getSm()+"' where clid ='"+cheliang.getClid()+"'";
		
			
			db.update(sql);
			//db.commit();
			db.close();
		
		}
	 public void  delete(String keyid) throws Exception{//删除车辆
			db=new DBO();
		        db.open();
			
			String sql = "delete from cheliang where clid='"+keyid+"'";
		
			
			db.update(sql);
			//db.commit();
			db.close();
		
		}
	 public ResultSet  qlist(String sl) throws Exception{//查询车辆
		   db=new DBO();
		   db.open();
		   String sql="select * from cheliang where  1=1 ";
		if(!sl.equals("")){
			sql+=sl;
			
		}
		   System.out.println("sql="+sql);