delitem.jsp

来自「孙鑫的Java Web开发详解一书的源代码」· JSP 代码 · 共 17 行

<jsp:useBean id="cart" scope="session" 
             class="org.sunxin.lesson.jsp.bookstore.CartBean"></jsp:useBean>

<%
    String strBookId=request.getParameter("id");
    if(null==strBookId || "".equals(strBookId))
    {
        response.sendRedirect("index.jsp");
        return;
    }
    else
    {
        cart.deleteItem(Integer.valueOf(strBookId));
        response.sendRedirect("showcart.jsp");
    }
%>