如何在JSP中将对象分配给成员类

Question

我正在构建一个旅游应用程序。我有预订指向旅行模式但我在使用JSLT添加新预订时无法分配书籍模式。 这是我的JSP代码：

<c:forEach items="${modalities}" var="modality">
                <form:form method="POST" action="/book_tour" modelAttribute="booking">
                    <p>${modality.name}</p>
                    <jsp:setProperty name="booking" property="tourModality" value="${modality}"></jsp:setProperty>
                    <input name="modality" type="hidden" value="${modality}">
                    <div class="form-group">
                        <form:label path="calendarDate">Escoja una fecha</form:label>
                        <div class='input-group date' id='datetimepicker'>
                            <form:input path="calendarDate" type='text' class="form-control"/>
                            <span class="input-group-addon">
                                <span class="glyphicon glyphicon-calendar"></span>
                            </span>
                        </div>
                        <div class="input-group">
                            <form:label path="calendarDate">Hora: </form:label>
                            <form:select path="calendarDate">
                                <c:forEach items="${modality.tourHours}" var="tourHour">
                                    <option>${tourHour.timeSlot}</option>
                                </c:forEach>
                            </form:select>
                        </div>
                    </div>
                    <input type="submit" class="btn btn-success" value="Reservar"/>
                </form:form>