Replace all characters in a string that are between two other characters in Java
Question
First time coding Java here, so bear with me :PI am trying to make a program in Java that opens a html file and edits it so that it removes all its html tags, but only them and not everything else. I am assuming that the file already exists and I don't need to create it. For now i have been working with a .txt file that has html code in it, in order to get me started faster. So far i have managed to edit the file so that it simply removes the html tag and replaces it with nothing. However what i really want is to remove anything that is inside the opening and the closing brackets. I will show an example of what i need:
<html>
<body>
<p> blah blah blah
</p>
</body>
</html>
After my program has been executed, the txt file should have only "blah blah blah" in it. In order to replace the tag , i am using:
if(myString.contains("<html>"))
{
// do stuff
}
So here is my question: is there something like an escape character in java that allows me to say:
if(myString.contains("<") && it is followed by as many characters as the file wants by (">") )
//then remove everything in between them.
For the sake of our minds, lets assume that the html code inside the .txt file has no errors. I will post the code if you want me to, but it is really bad structured and I don't think it will help you guys understand what i am doing at all. That is because i have been trying a lot of things simultaneously and i have kept whatever i may find useful as a comment. Thank you for your time!
3 answers
solution1
1 2017-03-04 20:14:40
You can use String.replaceAll with a regular expression.
"<html><p>foo bar</p></html>".replaceAll("</?[A-Za-z]+>", "");
Results in:
foo bar
However, be careful to not try to parse the HTML with regular expressions.
solution2
1 2017-03-04 20:16:32
使用JSoup，您可以非常简单地剥离HTML页面中的所有标签：
Jsoup.parse(myString).text()
solution3
1 ACCPTED 2017-03-04 20:17:21
Try to use regular expression like this. Here any string starting with < and ending with > and containing any no of any character inside these two angle brackets will be replaced by empty string so your code will remain bla bla ...
str = str.replaceAll("<.*>", "");
You can test the regex here .
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