jquery下载保存文件

<html>  
    <head>  
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>  
        <script type="text/javascript" src="jquery-1.4.2.js"></script>  
    </head>  
  
    <body>  
  
    <a href="http://k.com/forum/download?filename=2012/8/3/59e99e4584d24c982bba2ecbb52459ee__hadoop%E5%88%9D%E7%BA%A7ppt.rar">a标签下载</a>  
  
    <input   
       type='button'   
       value="修改地址栏下载"   
       onclick="window.location.href='http://ok.com/forum/download?filename=2012/8/3/59e99e4584d24c982bba2ecbb52459ee__hadoop%E5%88%9D%E7%BA%A7ppt.rar'">  
  
    <input   
       type='button'   
       value="打开新窗口下载"   
       onclick="window.open('http://ok.com/forum/download?filename=2012/8/3/59e99e4584d24c982bba2ecbb52459ee__hadoop%E5%88%9D%E7%BA%A7ppt.rar')">  
  
      
    <iframe id="fileDownFrame" src="" style="display:none; visibility:hidden;"></iframe>  
      
    <input   
        type='button'   
        value="ajax下载"  
        onclick='$("#fileDownFrame").attr("src","http://k.com/forum/download?filename=2012/8/3/59e99e4584d24c982bba2ecbb52459ee__hadoop%E5%88%9D%E7%BA%A7ppt.rar");'>  
    <!--  
        ajax下载或者使用 jquery.fileDownload 插件  
        http://johnculviner.com/post/2012/03/22/Ajax-like-feature-rich-file-downloads-with-jQuery-File-Download.aspx  
          
        服务器端设置不缓存  
        header("Pragma: public");  
        header("Expires: 0");  
        header("Cache-Control: must-revalidate, post-check=0, pre-check=0");   
          
  
    -->  
      
    </body>  
</html>  
原文地址:https://www.cnblogs.com/chjbbs/p/5490866.html