jq設置checkbox默認選中狀態 jQuery控制input不可編輯

1.后台發送的數據 是spring框架中的對象model.addObject(“student”,stu);
前台頁面由隱藏的接收對象

頁面代碼：

<input id="wfsi" class="hidden" th:value="${student.age}"/>

<div>
<input id="ckbx" type="checkbox"/>
</div>
    
    
   
   
           

   
   
  
  
          

jq代碼設置checkbox的幾種方式:

1.attr
//設置復選框為勾選狀態
$("#ckbx").attr("checked","checked");

//設置復選框未選中狀態
$("#ckbx").removeAttr("checked");

2.prop
//設置復選框為勾選狀態
$("#ckbx").prop("checked",true);

    
    
   
   
           

   
   
  
  
          

以上是在jq.1.12.4.js和bootstrap環境下運行,具體行為是前端html頁面發送請求到controller，springBoot自動獲取對應的數據進行處理，將返回的結果對象(Model以及addObject方法)傳回給html，然后jq獲取負責接收數據的input標簽的值。

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1.開啟disabled，是input不可以編輯

　　$("#id").attr("disabled","disabled");

2.關閉disabled

　　$("#id").removeAttr("disabled");

普通js中是這樣寫的，document.getElementById("id").disabled = false;

錯誤寫法：$("#id").attr("disabled","false");