Parse html with jsoup and remove the tag block
I want to remove everything between a tag. An example input may be
Input:
start
delete from below
-
Try this code :
String data = null;
BufferedReader br = new BufferedReader(new FileReader("e://XMLFile.xml"));
StringBuilder builder = new StringBuilder();
while ((data = br.readLine()) != null) {
builder.append(data);
}
System.out.println(builder);
String replaceAll = builder.toString().replaceAll("<div class=\"XYZ\".+?</div>", "");
System.out.println(replaceAll);
I have read the input XML from a file and stored it in a StringBuilder object by reading it line by line, and then replaced the entire tag will empty string.
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I asked this problem yesterday and thanks to ollo's answer. It was solved.
There is en extension of the above problem. I did not know if I have to start a new post or chain this one. So, in this confusion I am chaining it here.. Admins pls, pardon me if I had to make a separate post for this.
In the above problem, I have to remove a tag block with matching component.
The real scenario is:
It should remove the tag block with matching component + remove <br /> surrounding it.
Referring to the above example.
<body>
start
<div>
delete from below
<br />
<br />
<div class="XYZ">
first div having this class
<div>
waste
</div>
<div class="XYZ">
second div having this class
</div>
waste
</div>
<br />
delete till above
</div>
<div>
this will also remain
</div>
end
</body>
should also give the same output:
<body>
start
<div>
delete from below
delete till above
</div>
<div>
this will also remain
</div>
end
</body>
Because it has <br /> above and below the html tag block to remove....
Just to re-iterate, I am using the solution given by ollo to match and remove the tag block.
for( Element element : doc.select("div.XYZ") )
{
element.remove();
}
Thanks,
Shekhar
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You better iterate over all elements found. so you can be shure that
- a.) all elements are removed and
- b.) there's nothing done if there's no element.
Example:
Document doc = ...
for( Element element : doc.select("div.XYZ") )
{
element.remove();
}
Edit:
( An addition to my comment )
Don't use exception handling when a simple null- / range check is enough here:
doc.select("div.XYZ").first().remove();
instead:
Elements divs = doc.select("div.XYZ");
if( !divs.isEmpty() )
{
/*
* Here it's safe to call 'first()' since there at least one element.
*/
}
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This may help you.
String selectTags="div,li,p,ul,ol,span,table,tr,td,address,em";
/*selecting some specific tags */
Elements webContentElements = parsedDoc.select(selectTags);
String removeTags = "img,a,form";
/*Removing some tags from selected elements*/
webContentElements.select(removeTags).remove();
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