스프링게시판만들기 글삭제

사실 회사에와서 단한번도 써본적이없던... 후 복구힘들다 오타있을수있음 

jsp

onclick="javascript:location.href='crazydelete.do?bno=${bno.bno}'" value="삭제" 

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
  "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="crazy">
	<delete id="boarddelete">
		delete from crazyboard where bno =#{bno}
	</delete>
</mapper>

//dao
public void crazydelete(int bno)throws Exception;

//daoImpl
@Override
public void crazydelete(int bno) throws Exception {
	session.delete("crazy.boarddelete",bno);
}

//service
public void crazydelete(int bno)throws Exception;

//serviceImpl
	public void crazydelete(int bno) throws Exception {
		// TODO Auto-generated method stub
		dao.crazydelete(bno);
	}
    
//controller
	@RequestMapping(value="/crazydelete.do")
	public String delete(@RequestParam int bno)throws Exception{
		service.crazydelete(bno);
		return "redirect:/crazyboard.do";
	}