The JSP page loops through the List collection through the c:forEach tag

 

 

 

The <c:forEach> tag has the following attributes:

Attributes	description	Is it necessary	Defaults
items	Information to be recycled	no	no
begin	Starting element (0=first element, 1=second element)	no	0
end	The last element (0=first element, 1=second element)	no	Last element
step	The step size of each iteration	no	1
where	The name of the variable representing the current entry	no	no
varStatus	The name of the variable representing the loop state	no	no

In general, items and var can be used, and varStatus is used when you want to get the current object index

Backstage 

1.  

2. public ModelAndView toaddSmallBoard() {

3. /*需要获取板块信息*/

4. ModelAndView modelAndView=new ModelAndView();

5. List boards=boardService.getBoards();

6. modelAndView.addObject("boards",boards);

7. modelAndView.setViewName("admin/addSmallBoard");

8. return modelAndView;

9. }

Front desk

I used the select drop-down box here, and the specific use situation shows the situation

1. <select class="form-control" name="board.boFaterId">

2. <c:forEach items="${boards}" var="board" varStatus="id">

3. <option value="${board.boardId}">${board.boardName} </option>

4. </c:forEach>

5. </select>

effect