浅谈SpringMVC中post checkbox 多选框value的值(隐藏域方式)

<form:form commandName="user" method="post">     <c:forEach items="${deploys}" var="deploy" varStatus="deployStatus">      <input type="checkbox" name="checkbox" value="${deploy.id}"/>${deploy.systemName}      <br>     </c:forEach>     <spring:bind path="id">//实际存储的值，此处隐藏      <div class="form-group" hidden>       <form:input path="id" name="id" cssClass="form-control"></form:input>      </div>     </spring:bind>     <spring:bind path="accessControl">//实际存储的值，此处隐藏      <div class="form-group" hidden>       <form:input path="accessControl" name="accessControl" cssClass="form-control"></form:input>      </div>     </spring:bind>     <input type='button' value='确定' onclick="fun()"/>//调用脚本，给需要post的数据赋值     <div class="form-group">      <button type="submit" class="btn btn-primary">保存</button>      <a class="btn btn-success pull-right" href="/user/list" rel="external nofollow" >返回</a>     </div> </form:form>

<script type="text/javascript"> function fun() {  var boxes = document.getElementsByTagName("input");//  var val = []  var str = "";  for (var i = 0; i < boxes.length; i++) {   if (boxes[i].name == "checkbox" && boxes[i].checked == true) {//    val.push(boxes[i].value);    str += boxes[i].value + ',';   }  }  $("#accessControl").val(str)//  alert(atr);//  alert(val); }</script>

 @RequestMapping(value = "editaccesscontrol", method = RequestMethod.POST) //后端方法， public String editAccessControlPost(User user,ModelMap model ) {//接收参数对象user  userMapper.updateUserAccessControl(user);  model.addAttribute("user",user);  model.addAttribute("success", "权限修改成功");  return "redirect:/user/editaccesscontrol?id="+user.getId(); }