[浪风转载]Jquery取得iframe中元素的几种方法

雨点打透心脏的1/2处 2021-12-03 04:04 184阅读 0赞

iframe在复合文档中经常用到，利用jquery操作iframe可以大幅提高效率，这里收集一些基本操作

DOM方法：  
父窗口操作IFRAME：window.frames\["iframeSon"\].document  
IFRAME操作父窗口: window.parent.document

jquery方法:  
在父窗口中操作 选中IFRAME中的所有输入框： $(window.frames\["iframeSon"\].document).find(":text");  
在IFRAME中操作 选中父窗口中的所有输入框：$(window.parent.document).find(":text");

iframe 框架的HTML：<iframe src="test.html" id="iframeSon" width="700″ height="300″ frameborder="0″ scrolling="auto"></iframe>

1.在父窗口中操作 选中IFRAME中的所有单选钮  
$(window.frames\["iframe1"\].document).find("input\[@type='radio'\]").attr("checked","true");  
2.在IFRAME中操作 选中父窗口中的所有单选钮  
$(window.parent.document).find("input\[@type='radio'\]").attr("checked","true");  
iframe框架的：  
<iframe src="test.html" id="iframe1″ width="700″ height="300″ frameborder="0″ scrolling="auto"></iframe>

<table style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;border-collapse:collapse;border-width:0px;"> 
 <tbody style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;border-width:0px;"> 
  <tr style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;border-width:0px;"> 
   <td style="background-image:none;text-align:left;vertical-align:top;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#afafaf;border-width:0px;"><code style="background-image:none;text-align:right;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;border-width:0px;"><span style="line-height:1.5;font-family:NSimsun;">05</span></code></td> 
   <td style="border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:3px;background-image:none;text-align:left;vertical-align:top;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;border-left-style:solid;border-left-color:#6ce26c;color:#000000;"><span style="line-height:1.5;font-family:NSimsun;"><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;border-width:0px;">&nbsp;&nbsp;&nbsp;&nbsp;</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#000000;border-width:0px;">&lt;</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:bold;font-style:normal;font-size:1em;color:#006699;border-width:0px;">MCE:SCRIPT</code></span>&nbsp;<span style="line-height:1.5;font-family:NSimsun;"><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#808080;border-width:0px;">mce_src</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#000000;border-width:0px;">=</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#0000FF;border-width:0px;">"js/jquery-1.2.6.js"</code></span>&nbsp;<span style="line-height:1.5;font-family:NSimsun;"><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#808080;border-width:0px;">src</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#000000;border-width:0px;">=</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#0000FF;border-width:0px;">"../js/jquery-1.2.6.js"</code></span>&nbsp;<span style="line-height:1.5;font-family:NSimsun;"><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#808080;border-width:0px;">type</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#000000;border-width:0px;">=</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#0000FF;border-width:0px;">"text/ecmascript"</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#000000;border-width:0px;">&gt;&lt;/</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:bold;font-style:normal;font-size:1em;color:#006699;border-width:0px;">MCE:SCRIPT</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#000000;border-width:0px;">&gt;&nbsp;&nbsp;&nbsp;&nbsp;</code></span></td> 
  </tr> 
 </tbody> 
</table>

<table style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;border-collapse:collapse;border-width:0px;"> 
 <tbody style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;border-width:0px;"> 
  <tr style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;border-width:0px;"> 
   <td style="background-image:none;text-align:left;vertical-align:top;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#afafaf;border-width:0px;"><code style="background-image:none;text-align:right;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;border-width:0px;"><span style="line-height:1.5;font-family:NSimsun;">22</span></code></td> 
   <td style="border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:3px;background-image:none;text-align:left;vertical-align:top;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;border-left-style:solid;border-left-color:#6ce26c;color:#000000;"><span style="line-height:1.5;font-family:NSimsun;"><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#000000;border-width:0px;">&lt;</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:bold;font-style:normal;font-size:1em;color:#006699;border-width:0px;">IFRAME</code></span>&nbsp;<span style="line-height:1.5;font-family:NSimsun;"><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#808080;border-width:0px;">id</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#000000;border-width:0px;">=</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#0000FF;border-width:0px;">iframe1</code></span>&nbsp;<span style="line-height:1.5;font-family:NSimsun;"><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#808080;border-width:0px;">src</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#000000;border-width:0px;">=</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#0000FF;border-width:0px;">"child.htm"</code></span>&nbsp;<span style="line-height:1.5;font-family:NSimsun;"><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#808080;border-width:0px;">mce_src</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#000000;border-width:0px;">=</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#0000FF;border-width:0px;">"child.htm"</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#000000;border-width:0px;">&gt;&lt;/</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:bold;font-style:normal;font-size:1em;color:#006699;border-width:0px;">IFRAME</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#000000;border-width:0px;">&gt;&nbsp;&nbsp;&nbsp;&nbsp;</code></span></td> 
  </tr> 
 </tbody> 
</table>

<table style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;border-collapse:collapse;border-width:0px;"> 
 <tbody style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;border-width:0px;"> 
  <tr style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;border-width:0px;"> 
   <td style="background-image:none;text-align:left;vertical-align:top;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#afafaf;border-width:0px;"><code style="background-image:none;text-align:right;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;border-width:0px;"><span style="line-height:1.5;font-family:NSimsun;">23</span></code></td> 
   <td style="border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:3px;background-image:none;text-align:left;vertical-align:top;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;border-left-style:solid;border-left-color:#6ce26c;color:#000000;"><span style="line-height:1.5;font-family:NSimsun;"><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#000000;border-width:0px;">&lt;</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:bold;font-style:normal;font-size:1em;color:#006699;border-width:0px;">IFRAME</code></span>&nbsp;<span style="line-height:1.5;font-family:NSimsun;"><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#808080;border-width:0px;">height</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#000000;border-width:0px;">=</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#0000FF;border-width:0px;">100</code></span>&nbsp;<span style="line-height:1.5;font-family:NSimsun;"><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#808080;border-width:0px;">src</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#000000;border-width:0px;">=</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#0000FF;border-width:0px;">"child.htm"</code></span>&nbsp;<span style="line-height:1.5;font-family:NSimsun;"><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#808080;border-width:0px;">width</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#000000;border-width:0px;">=</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#0000FF;border-width:0px;">300</code></span>&nbsp;<span style="line-height:1.5;font-family:NSimsun;"><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#808080;border-width:0px;">mce_src</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#000000;border-width:0px;">=</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#0000FF;border-width:0px;">"child.htm"</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#000000;border-width:0px;">&gt;&lt;/</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:bold;font-style:normal;font-size:1em;color:#006699;border-width:0px;">IFRAME</code><code style="background-image:none;text-align:left;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-weight:normal;font-style:normal;font-size:1em;color:#000000;border-width:0px;">&gt;&nbsp;&nbsp;&nbsp;&nbsp;</code></span></td> 
  </tr> 
 </tbody> 
</table>

收集利用Jquery取得iframe中元素的几种方法 :

Js代码

1.  $(document.getElementById('iframeId').contentWindow.document.body).htm()

$(document.getElementById('iframeId').contentWindow.document.body).htm()

显示iframe中body元素的内容。

Js代码

1.  $("\#testId", document.frames("iframename").document).html();

$("#testId", document.frames("iframename").document).html();

根据iframename取得其中ID为"testId"元素

Js代码

1.  $(window.frames\["iframeName"\].document).find("\#testId").html()

$(window.frames["iframeName"].document).find("#testId").html()

作用同上

收集网上的一些示例：

#### 用jQuery在IFRAME里取得父窗口的某个元素的值 ####

只好用DOM方法与jquery方法结合的方式实现了  
  
1.在父窗口中操作 选中IFRAME中的所有单选钮  
$(window.frames\["iframe1"\].document).find("input\[@type='radio'\]").attr("checked","true");  
  
2.在IFRAME中操作 选中父窗口中的所有单选钮  
$(window.parent.document).find("input\[@type='radio'\]").attr("checked","true");  
  
iframe框架的：<iframe src="test.html" id="iframe1" width="700" height="300" frameborder="0" scrolling="auto"></iframe>  
  
IE7中测试通过

使用jquery操作iframe

1、 内容里有两个ifame

leftiframe中jQuery改变mainiframe的src代码：  
$("\#mainframe",parent.document.body).attr("src","[http://www.radys.cn][http_www.radys.cn]")

2、 如果内容里面有一个ID为mainiframe的ifame   
<iframe id="mainifame"...></ifame>  
ifame包含一个someID  
<div id="someID">you want to get this content</div>  
得到someID的内容

$("\#mainiframe").contents().find("someID").html() html 或者 $("\#mainiframe").contains().find("someID").text()值

3、在父窗口中操作 选中IFRAME中的所有单选钮  
$(window.frames\["iframe1"\].document).find("input\[@type='radio'\]").attr("checked","true");  
  
那选择id自然就是依然使用find方法  
$(window.frames\["iframe1"\].document).find("\#id")

4、 如上面所示   
leftiframe中的jQuery操作mainiframe的内容someID的内容  
$("\#mainframe",parent.document.body).contents().find("someID").html()或者 $("\#mainframe",parent.document.body).contents().find("someID").val()

使用JavaScript操纵iframe

框架间的互相引用

一 个页面中的所有框架以集合的形式作为window 对象的属性提供，例如：window.frames就表示该页面内所有框架的集合，这和表单对象、链接对象、图片对象等是类似的，不同的是，这些集合是 document的属性。因此，要引用一个子框架，可以使用如下语法：

window.frames\["frameName"\];

window.frames.frameName

window.frames\[index\]

其中，window字样也可以用self代替或省略，假设frameName为页面中第一个框架，则以下的写法是等价的：

self.frames\["frameName"\]

self.frames\[0\]

frames\[0\]

frameName

每 个框架都对应一个HTML页面，所以这个框架也是 一个独立的浏览器窗口，它具有窗口的所有性质，所谓对框架的引用也就是对window对象的引用。有了这个window对象，就可以很方便地对其中的页面 进行操作，例如使用window.document对象向页面写入数据、使用window.location属性来改变框架内的页面等。

下面分别介绍不同层次框架间的互相引用：

1．父框架到子框架的引用

知道了上述原理，从父框架引用子框架变的非常容易，即：

window.frames\["frameName"\];

这样就引用了页面内名为frameName的子框架。如果要引用子框架内的子框架，根据引用的框架实际就是window对象的性质，可以这样实现：

window.frames\["frameName"\].frames\["frameName2"\];

这样就引用到了二级子框架，以此类推，可以实现多层框架的引用。

2．子框架到父框架的引用

每个window对象都有一个parent属性，表示它的父框架。如果该框架已经是顶层框架，则window.parent还表示该框架本身。

3．兄弟框架间的引用

如果两个框架同为一个框架的子框架，它们称为兄弟框架，可以通过父框架来实现互相引用，例如一个页面包括2个子框架：

</frameset>