java做一个生日庆祝,java模拟生日发祝福
packagecom.cc.birthday;importjava.sql.SQLException;importjava.text.SimpleDateFormat;importjava.util.Date;importjava.util.List;importjava.util.Timer;importjava.util.TimerTask;importjavax.mail.MessagingException;importjavax.servlet.ServletContextEvent;importjavax.servlet.ServletContextListener;importorg.apache.commons.dbutils.QueryRunner;importorg.apache.commons.dbutils.handlers.BeanListHandler;importcom.cc.birthday.Customer;importcom.cc.mail.MailUtils;public class BirthdayListener implementsServletContextListener{
@Overridepublic voidcontextInitialized(ServletContextEvent sce) {//当web应用启动开启任务调动---功能在用户的生日当天发送邮件//开启一个定时器
Timer timer=newTimer();
timer.scheduleAtFixedRate(newTimerTask() {
@Overridepublic voidrun() {//为当前的生日的用户发邮件//1.获得今天过生日的人//获得今天的日期
SimpleDateFormat format=new SimpleDateFormat("MM-dd");
String currentDate=format.format(newDate());//根据当前时间从数据库查询今天过生日的人
QueryRunner qr=newQueryRunner(DataSourceUtils.getDataSource());
String sql="select * from customer where birthday like ?";
List customerList=null;try{
customerList= qr.query(sql, new BeanListHandler(Customer.class),"%"+currentDate);
}catch(SQLException e) {//TODO Auto-generated catch block
e.printStackTrace();
}//2.发邮件
if(customerList!=null&&customerList.size()>0){for(Customer c:customerList){
String emailMsg="亲爱的："+c.getRealname()+",生日快乐！";try{
MailUtils.sendMail(c.getEmail(),"happy..birthday", emailMsg);
System.out.println(c.getRealname()+"邮件发送完毕");
}catch(MessagingException e) {//TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
},new Date(),10*1000);//实际开发中起始时间是一个固定的时间//实际开发中间隔时间是1天
}
@Overridepublic voidcontextDestroyed(ServletContextEvent sce) {//TODO Auto-generated method stub
}
}
packagecom.cc.birthday;importjava.sql.SQLException;importjava.text.SimpleDateFormat;importjava.util.Date;importjava.util.List;importjava.util.Timer;importjava.util.TimerTask;importjavax.mail.MessagingException;importjavax.servlet.ServletContextEvent;importjavax.servlet.ServletContextListener;importorg.apache.commons.dbutils.QueryRunner;importorg.apache.commons.dbutils.handlers.BeanListHandler;importcom.cc.birthday.Customer;importcom.cc.mail.MailUtils;public class BirthdayListener implementsServletContextListener{ @Overridepublic voidcontextInitialized(ServletContextEvent sce) {//当web应用启动开启任务调动---功能在用户的生日当天发送邮件//开启一个定时器 Timer timer=newTimer(); timer.scheduleAtFixedRate(newTimerTask() { @Overridepublic voidrun() {//为当前的生日的用户发邮件//1.获得今天过生日的人//获得今天的日期 SimpleDateFormat format=new SimpleDateFormat("MM-dd"); String currentDate=format.format(newDate());//根据当前时间从数据库查询今天过生日的人 QueryRunner qr=newQueryRunner(DataSourceUtils.getDataSource()); String sql="select * from customer where birthday like ?"; List customerList=null;try{ customerList= qr.query(sql, new BeanListHandler(Customer.class),"%"+currentDate); }catch(SQLException e) {//TODO Auto-generated catch block e.printStackTrace(); }//2.发邮件 if(customerList!=null&&customerList.size()>0){for(Customer c:customerList){ String emailMsg="亲爱的："+c.getRealname()+",生日快乐！";try{ MailUtils.sendMail(c.getEmail(),"happy..birthday", emailMsg); System.out.println(c.getRealname()+"邮件发送完毕"); }catch(MessagingException e) {//TODO Auto-generated catch block e.printStackTrace(); } } } } },new Date(),10*1000);//实际开发中起始时间是一个固定的时间//实际开发中间隔时间是1天 } @Overridepublic voidcontextDestroyed(ServletContextEvent sce) {//TODO Auto-generated method stub } }