query string - Java: How do I remove parameter from querystring -


i want remove querystring attribute url, tried regex didn't exact solution this. please me out of it. eg: 

string qstring = "category=popular&code=14290115"; qstring = qstring .replaceall("(?<=[?&;])code=.*?($|[&;])","");  output: category=popular&

the above regex removing attribute not removing & symbol. please suggest me this.

don't use regex this. it's utter nightmare because character percent-encoded, e.g. ?foo=bar same ?%66oo=%62ar. parse url, query string, rebuild it. take @ uribuilder , urlencodedutils out of apache commons http client.


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