java - Find a xml element with Regex and replace its value -


i understand should not use regex update xml. per requirement have find element based on regex , replace value.
i recording http requests in dispatcher servlet , saving intoa file. while replaying may need upadte 1 of xml.
don't want convert particular xml document, parse , update convert string. that's why want edit xml in string format.

element name , new value input. 

public void findandreplace(string xml, string elementname, string newvalue) {  string regex = '/<'+elementname+'></'+elementname+'>';  string updatedelement = '/<'+elementname+'>'+newvalue+'</'+elementname+'>'   string updatedxml = xml.replacefirst(regex, updatedelement); }

you don't have create document in order change xml docuemnt. can quite set streaming xml parser in quite efficient manner. have @ javax.xml.stream package.


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