5.7 jsp的基本增删改查

protected void queryById(HttpServletRequest request, HttpServletResponse response)
		throws ServletException, IOException {
	//取
	String id=request.getParameter("bookid");
	//调
   Book book= bookService.queryById(id);
    //存
   HttpSession session=request.getSession();
   session.setAttribute("book", book);
   //转
   response.sendRedirect("detail.jsp");

}

Service

Dao

@Override
public Book selectByID(String id) {
	String sql="SELECT * from book_info where book_id=?";
	Book book=null;
	  try {
		book=queryRunner.query(sql,new BeanHandler<Book>(Book.class),id);
	} catch (SQLException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
	return book;
}

页面
<%@ page language=“java” contentType=“text/html; charset=UTF-8”
pageEncoding=“UTF-8”%>

		<tr>
			<td>图书编号</td>
			<td>${book.book_code }</td>
		</tr>
		<tr>
			<td>图书名称</td>
			<td>${book.book_name }</td>
		</tr>
		<tr>
			<td>图书分类</td>
			<td>${book.book_type }</td>
		</tr>
		<tr>
			<td>作者</td>
			<td>${book.book_author }</td>
		</tr>
		<tr>
			<td>出版社</td>
			<td>${book.publish_press }</td>
		</tr>
		<tr>
			<td>出版社时间</td>
			<td>${book.publish_date }</td>
		</tr>

		<tr>
			<td colspan="2"><a href="booklist.jsp">返回首页</a></td>
		</tr>
	</table>

</div>

图书借阅系统