20acee36c140001d1de9e278a312a0a9

自己做的一个火车票售票网站是课程设计 用的是servlet+jsp 数据库是ms

package com.daoImpl;

import java.sql.PreparedStatement;

import com.dao.AjaxDAO;
import com.jdbc.DataBaseConnection;

public class AjaxDAOImpl implements AjaxDAO{
   public boolean deleteChepiao(String temp,String temp1,String temp2){
	   boolean flag=false;
	   DataBaseConnection dbc = new DataBaseConnection();
	   PreparedStatement psmt =null;
	   String sql =null;
	   try{
		   
		   sql="delete from ajax where number=? and name=? and number1=?";
		   psmt =dbc.getConnection().prepareStatement(sql);
		   psmt.setString(1,temp);
		   psmt.setString(2,temp1);
		   psmt.setString(3,temp2);
		   int i=psmt.executeUpdate();
			if(i==1){ flag=true;}  
	   }
	   catch(Exception e){
		   
	   }
	   
	   return flag;
   }
}