如何使用jQuery在父窗口中訪問iframe中的數據？

Question

我想訪問iframe的內容在主（父）window..using jQuery的

<iframe id="epsresponse" name="epsresponse" src="js/demo.json"> 
    </iframe> 

    <button>click</button> 

    <div id="atg_store_storedCreditCards"> 
    </div> 
    </div> 

我與添加使用Ajax jQuery的獨立JSON文件試圖其做工精細， 我需要當一回事JSON數據在iframe內呈現。

<script> 
    $(document).ready(function(){ 
     window.onload=function() { 
      var iframeContent = $('#epsresponse').html(); 
      console.log(iframeContent); 
     }; 
     $('button').live('click', function(){ 
      $.ajax({ 
       type:'GET', 
       url: 'js/demo.json', 
       dataType:'json', 
       cache:false, 
       success: function(data){ 
        if(data.status == "success"){ 
         console.log(data.nickname); 
         console.log(data.token); 
         console.log(data.expirationMonth); 
         console.log(data.expirationYear); 
         console.log(data.nameOnCard); 
         console.log(data.creditCardNumber); 
         console.log(data.creditCardType); 

         $('#atg_store_storedCreditCards').append('<div class="atg_store_storedCreditCards"><div class="nickname">'+data.nickname+'</div><div class="token">'+data.token+'</div><div class="expirationMonth">'+data.expirationMonth+'</div><div class="expirationYear">'+data.expirationYear+'</div><div class="nameOnCard">'+data.nameOnCard+'</div><div class="creditCardNumber">'+data.creditCardNumber+'</div><div class="creditCardType">'+data.creditCardType+'</div></div>'); 
         //<div class="token">'+data.token+'</div><div class="expirationMonth">'+data.expirationMonth+'</div><div class="expirationYear">'+data.expirationYear+'</div><div class="nameOnCard">'+data.nameOnCard+'</div><div class="creditCardNumber">'data.creditCardNumber+'</div><div class="creditCardType">'data.creditCardType+'</div> 
         //$('#nickname').html('+ nickname +');   
        } 
       }, 
       error: function(status){ 
        console.log(status); 
       } 
      }); 



     }); 
    }); 
    </script> 

Answer 1

var frameDoc = window.frames[ 0 ].document; 

然後你做$(frameDoc).find(<<selector>>);