Method modify

ch4/BoardService.java:14–14

(BoardDto boardDto)

    BoardDto read(Integer bno) throws Exception;
    List<BoardDto> getPage(Map map) throws Exception;
    int modify(BoardDto boardDto) throws Exception;

    int getSearchResultCnt(SearchCondition sc) throws Exception;
    List<BoardDto> getSearchResultPage(SearchCondition sc) throws Exception;