我生成正常的链接，如:<a href="/path/to/image"><img src="/path/to/image" /></a>在web应用程序。
当我点击链接时，它会在一个新页面中显示图片。如果你想保存图片，你需要右键点击它，选择“另存为”
我不希望这种行为，我想有一个下载框弹出时，我点击链接，这是可能的只是与html或javascript?如何?
如果没有，我想我将不得不写一个下载。php脚本，并调用它到href与文件名作为参数…?
当前回答
试试这个…
<a href="/path/to/image" download>
<img src="/path/to/image" />
</a>
其他回答
图片下载使用图片点击!
我做了这个简单的代码!:)
<html>
<head>
<title> Download-Button </title>
</head>
<body>
<p> Click the image ! You can download! </p>
<a download="logo.png" href="http://localhost/folder/img/logo.png" title="Logo title">
<img alt="logo" src="http://localhost/folder/img/logo.png">
</a>
</body>
</html>
简单的代码图像下载与图像点击使用php
<html>
<head>
<title> Download-Button </title>
</head>
<body>
<p> Click the image ! You can download! </p>
<?php
$image = basename("http://localhost/sc/img/logo.png"); // you can here put the image path dynamically
//echo $image;
?>
<a download="<?php echo $image; ?>" href="http://localhost/sc/img/logo.png" title="Logo title">
<img alt="logo" src="http://localhost/sc/img/logo.png">
</a>
</body>
如果你使用HTML5，你可以添加属性“下载”到你的链接。
<a href="/test.pdf" download>
http://www.w3schools.com/tags/att_a_download.asp
<a href="download.php?file=path/<?=$row['file_name']?>">Download</a>
download.php:
<?php
$file = $_GET['file'];
download_file($file);
function download_file( $fullPath ){
// Must be fresh start
if( headers_sent() )
die('Headers Sent');
// Required for some browsers
if(ini_get('zlib.output_compression'))
ini_set('zlib.output_compression', 'Off');
// File Exists?
if( file_exists($fullPath) ){
// Parse Info / Get Extension
$fsize = filesize($fullPath);
$path_parts = pathinfo($fullPath);
$ext = strtolower($path_parts["extension"]);
// Determine Content Type
switch ($ext) {
case "pdf": $ctype="application/pdf"; break;
case "exe": $ctype="application/octet-stream"; break;
case "zip": $ctype="application/zip"; break;
case "doc": $ctype="application/msword"; break;
case "xls": $ctype="application/vnd.ms-excel"; break;
case "ppt": $ctype="application/vnd.ms-powerpoint"; break;
case "gif": $ctype="image/gif"; break;
case "png": $ctype="image/png"; break;
case "jpeg":
case "jpg": $ctype="image/jpg"; break;
default: $ctype="application/force-download";
}
header("Pragma: public"); // required
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: private",false); // required for certain browsers
header("Content-Type: $ctype");
header("Content-Disposition: attachment; filename=\"".basename($fullPath)."\";" );
header("Content-Transfer-Encoding: binary");
header("Content-Length: ".$fsize);
ob_clean();
flush();
readfile( $fullPath );
} else
die('File Not Found');
}
?>
<a download="custom-filename.jpg" href="/path/to/image" title="ImageName">
<img alt="ImageName" src="/path/to/image">
</a>
caniuse还不完全支持，但可以使用modernizr(在非核心检测下)来检查浏览器的支持。
