src/com/dao/jiaoshiDao.java

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




import com.bean.jiaoshi;
import com.util.DBO;
import java.util.List;
import java.sql.ResultSet;
public class jiaoshiDao {
	private DBO db=null;//
	 private jiaoshi jiaoshi=null;
	 public void  insert(jiaoshi jiaoshi) throws Exception{//添加教师
			db=new DBO();
		   db.open();
			
			String sql = "insert into jiaoshi (yhm,mm,xm,zy,rzsj,zc ) values ('"+jiaoshi.getYhm()+"','"+jiaoshi.getMm()+"','"+jiaoshi.getXm()+"','"+jiaoshi.getZy()+"','"+jiaoshi.getRzsj()+"','"+jiaoshi.getZc()+"')";
		
			
			db.update(sql);
			//db.commit();
			db.close();
		
		}
	 public void  modify(jiaoshi jiaoshi) throws Exception{//修改教师
			db=new DBO();
		   db.open();
			
			String sql = "update jiaoshi set  yhm='"+jiaoshi.getYhm()+"',mm='"+jiaoshi.getMm()+"',xm='"+jiaoshi.getXm()+"',zy='"+jiaoshi.getZy()+"',rzsj='"+jiaoshi.getRzsj()+"',zc='"+jiaoshi.getZc()+"' where jsid ='"+jiaoshi.getJsid()+"'";
		
			
			db.update(sql);
			//db.commit();
			db.close();
		
		}
	 public void  delete(String keyid) throws Exception{//删除教师
			db=new DBO();
		        db.open();
			
			String sql = "delete from jiaoshi where jsid='"+keyid+"'";
		
			
			db.update(sql);
			//db.commit();
			db.close();
		
		}
	 public ResultSet  qlist(String sl) throws Exception{//查询教师
		   db=new DBO();
		   db.open();
		   String sql="select * from jiaoshi where  1=1 ";
		if(!sl.equals("")){
			sql+=sl;
			
		}
		   System.out.println("sql="+sql);