禁用單選按鈕無法正常工作

Question

我對使用單選按鈕的禁用屬性存在問題。所以在基於when語句的代碼中，我需要預先選擇一個單選按鈕並禁用它，因此用戶不能更改它。代碼在前端工作正常，但是當我將表單提交給DB時，該按鈕的值變爲空。

<c:when test="${DATA_WAREHOUSE != null && DATA_WAREHOUSE == 'CNS' 
          && DATA_WAREHOUSE_RESPONSE != null && DATA_WAREHOUSE_RESPONSE == 'CNS_0'}"> 

          <label for="rMailer" class="radio-wrap"> 
           <input type="radio" name="maileraddressee" value="MAI" id="rMailer" checked disabled> 
           I was the mailer 
          </label> 
          <label for="rAddressee" class="radio-wrap"> 
           <input type="radio" name="maileraddressee" value="ADD" id="rAddressee" disabled> 
           I was the addressee 
          </label> 
          <input name="mailerAddressee" value="MAI" type="hidden"/> 
         </c:when> 

Answer 1

您不需要禁用選中的單選按鈕。如果該組中的其他單選按鈕被禁用，則用戶將無法取消選中加載頁面時檢查的單選按鈕。

<label for="rMailer" class="radio-wrap"> 
    <input type="radio" name="maileraddressee" value="MAI" id="rMailer" checked="checked"> 
    I was the mailer 
</label> 
<label for="rAddressee" class="radio-wrap"> 
    <input type="radio" name="maileraddressee" value="ADD" id="rAddressee" disabled="disabled"> 
    I was the addressee 
</label> 

如果您現在提交表單，那麼您應該得到maileraddressee的MAI值。