[英]Inserting Javascript Variables into a flashVars string
我正在使用camenedesign的VIDEO FOR EVERYBODY腳本在頁面上嵌入視頻元素,並對那些沒有HTML5功能的用戶使用Flash Player后備。
但是我正在更改要在調用頁面時動態加載的URL。 除對象embed params標記中的flashVars字符串外,所有內容都可以正常解析。 此params標記的值需要進行URL編碼,因此在將視頻呈現在頁面上之前,我需要一些JavaScript才能使用加載的值對海報圖像和視頻文件的url進行編碼。
我的問題是:如何正確解析兩個值,以便它們正確完成flashVars值?
這是我的代碼:(因此,這是我正在運行的Java網站,因此是JAVA c:sets)
<!DOCTYPE HTML>
<c:set var="title" value="Blender Demo Reel 2013"/>
<c:set var="file" value="bdr2013"/>
<c:set var="poster" value="poster.jpg"/>
<c:set var="width" value="960"/>
<c:set var="height" value="540"/>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>New Video Player</title>
</head>
<script>
var posterEncode = encodeURIComponent("${poster}");
var fileEncode = encodeURIComponent("${file}");
</script>
<body>
<div id="videoContainer">
<video controls preload poster="${poster}" width="${width}" height="${height}">
<source src="${file}.mp4" type="video/mp4">
<source src="${file}.ogv" type="video/ogg">
<source src="${file}.webm" type="video/webm">
<object type="application/x-shockwave-flash" data="http://player.longtailvideo.com/player.swf" width="${width}" height="${height}">
<param name="movie" value="http://player.longtailvideo.com/player.swf" />
<param name="allowFullScreen" value="true" />
<param name="wmode" value="transparent" />
<param name="flashVars" value="controlbar=over&image="+posterEncode+"&file="+fileEncode+".mp4" />
<img alt="Big Buck Bunny" src="${poster}" width="${width}" height="${height}" title="No video playback capabilities, please download the video below" />
</object>
</video>
</div>
</body>
</html>
當我在瀏覽器中查看此源代碼時,其返回如下:
<script>
var posterEncode = encodeURIComponent("poster.jpg");
var fileEncode = encodeURIComponent("bdr2013");
</script>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>New Video Player</title>
<body>
<div id="videoContainer">
<video controls preload poster="poster.jpg" width="960" height="540">
<source src="bdr2013.mp4" type="video/mp4">
<source src="bdr2013.ogv" type="video/ogg">
<source src="bdr2013.webm" type="video/webm">
<object type="application/x-shockwave-flash" data="http://player.longtailvideo.com/player.swf" width="960" height="540">
<param name="movie" value="http://player.longtailvideo.com/player.swf" />
<param name="allowFullScreen" value="true" />
<param name="wmode" value="transparent" />
<param name="flashVars" value="controlbar=over&image="+posterEncode+"&file="+fileEncode+".mp4" />
<img alt="Big Buck Bunny" src="poster.jpg" width="960" height="540" title="No video playback capabilities, please download the video below" />
</object>
</video>
</div>
</body>
</html>
您只是在寫HTML屬性。 這里不需要JavaScript。 URI對Java中的字符串進行編碼,然后將其放入Java變量中,然后將其放入HTML中,就像對任何其他Java變量一樣:
<param name="flashVars" value="controlbar=over&image=${posterEncoded}&file=${fileEncoded}.mp4" />
哈扎!
<!DOCTYPE HTML>
<c:set var="title" value="Blender Demo Reel 2013"/>
<c:set var="file" value="bdr2013"/>
<c:set var="poster" value="poster.jpg"/>
<c:set var="width" value="960"/>
<c:set var="height" value="540"/>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>New Video Player</title>
</head>
<body>
<div id="videoContainer">
<video controls preload poster="${poster}" width="${width}" height="${height}">
<source src="${file}.mp4" type="video/mp4">
<source src="${file}.ogv" type="video/ogg">
<source src="${file}.webm" type="video/webm">
<object type="application/x-shockwave-flash" data="http://player.longtailvideo.com/player.swf" width="${width}" height="${height}">
<param name="movie" value="http://player.longtailvideo.com/player.swf" />
<param name="allowFullScreen" value="true" />
<param name="wmode" value="transparent" />
<script>
var posterEncode = encodeURIComponent("${poster}");
var fileEncode = encodeURIComponent("${file}");
document.write("<param name='flashVars' value='controlbar=over&image="+posterEncode+"&file="+fileEncode+".mp4' />");
</script>
<img alt="${title}" src="${poster}" width="${width}" height="${height}" title="${title}" />
</object>
</video>
</div>
</body>
</html>
我把javascript encodeURIComponent函數和一個document.write放到需要動態參數行的位置,然后SHAZAM! 像魅力一樣運作。
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