Question

I have an XML file that I want to format an XML file to remove tags like "<scientific_max></scientific_max>". I used that code but it didn t work

String regex = "<([a-z_]+)></($1)>";
result = result.replaceAll(regex, "");

有一个天!

Answer 1

If you insist on doing such tasks with regular expressions you might like to know that back references are represented as in java instead of $n:

String regex = "<([a-z_]+)></\1>";
result = result.replaceAll(regex, "");

Answer 2

Java is not the best when it comes to pattern matching & String replacement on files if you are considering this to extract data based on tags, use jaxb

如果你想要永久改用xml,你可以使用ed

sed -i s/<*scientific_max>*$//投入_xml.xml

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