Replace a substring with a StringBuffer substring

StackOverflow https://stackoverflow.com/questions/20978031

Вопрос

I have a Huge string which is complete html obtained into a string by JSOUP.I have made changes to a substring of the html using String Bufer replace API(replace(int startIndex,int endIndex, "to be changed string).The String buffer is populated perfectly.But when I try to replace the substring of html with new String buffer it does not work.

Here is the code snippet.

html = html.replace(divStyle1.trim(), heightwidthM.toString().trim());

The initial big html is 

<!DOCTYPE html>
<html xmlns:og="http://opengraphprotocol.org/schema/" xmlns:fb="http://www.facebook.com/2008/fbml" xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en" class="SAF" id="global-header-light">
<head>

</head>
<body>


**<div style="background-image: url(http://aka-cdn-ns.adtech.de/rm/ads/23274/HPWomenLOFT_1381687318.jpg);background-repeat: no-repeat;-webkit-background-size: 1001px 2059px; height: 2059px; width: 1001px; text-align: center; margin: 0 auto;">**                      

<div style="height:2058px; padding-left:0px; padding-top:36px;">


<iframe style="height:90px; width:728px;"/>



</div>
</div>

</body>
</html>

The divStyle1 string is 

background-image: url(http://aka-cdn-ns.adtech.de/rm/ads/23274/HPWomenLOFT_1381687318.jpg);background-repeat: no-repeat;-webkit-background-size: 1001px 2059px; height: 2059px; width: 1001px; text-align: center; margin: 0 auto;

And the String buffer has value

background-image: url(http://aka-cdn-ns.adtech.de/rm/ads/23274/HPWomenLOFT_1381687318.jpg);background-repeat: no-repeat;-webkit-background-size: 1001px 2059px; height:720px; width:900px; text-align: center; margin: 0 auto;

does not work where divStyle is a substring of the last HTML(in String) and heightwidthM is a Stringbuffer value with which it has to be replaced.It doesnt throw any errors but it does not change it as well.

Thanks Swaraj

Это было полезно?

Решение

This is very easy with JSoup

String html = "<!DOCTYPE html>\n<html xmlns:og=\"http://opengraphprotocol.org/schema/\" xmlns:fb=\"http://www.facebook.com/2008/fbml\" xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\" lang=\"en\" class=\"SAF\" id=\"global-header-light\">\n<head>\n\n</head>\n<body>\n\n\n**<div style=\"background-image: url(http://aka-cdn-ns.adtech.de/rm/ads/23274/HPWomenLOFT_1381687318.jpg);background-repeat: no-repeat;-webkit-background-size: 1001px 2059px; height: 2059px; width: 1001px; text-align: center; margin: 0 auto;\">**                      \n\n<div style=\"height:2058px; padding-left:0px; padding-top:36px;\">\n\n\n<iframe style=\"height:90px; width:728px;\"/>\n\n\n\n</div>\n</div>\n\n</body>\n</html>";
String newStyle = "background-image: url(http://aka-cdn-ns.adtech.de/rm/ads/23274/HPWomenLOFT_1381687318.jpg);background-repeat: no-repeat;-webkit-background-size: 1001px 2059px; height:720px; width:900px; text-align: center; margin: 0 auto;";

Document document = Jsoup.parse(html);
document.body().child(0).attr("style", newStyle);
System.out.println(document.html());

Другие советы

Coming back to my suggestion, if you don't mind trying, you can do something of this sort:

Document newDocument = Jsoup.parse(<your html string>, StringUtils.EMPTY, Parser.htmlParser());
Elements yourStyles = newDocument.select("div[style]"); // this will select all div with attributes style
yourStyles.get(0).attr("style", <your new value>); // this will get your first div and replace attribute style to your new value
System.out.println(newDocument.outerHtml());
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