a good library url query twine plan java

i need few unequivocally rudimentary url manipulations java. value parameter query, transform it, ... i awaiting rudimentary concentration category doing commons-lang package, nonetheless no. i know rudimentary problem, nonetheless there something already written, since again ? know any ?

i have during slightest following capabilities :

string myurl = "http://www.example.com/test.html?toto=1&titi=2";

// value parameter
string parametervalue = urlutils.getparametervalue(myurl, "toto");
assert.equals(parametervalue, "1");

// transform parameter
string newurl = urlutils.updateparameter(myurl, "toto", 3);
parametervalue = urlutils.getparametervalue(myurl, "toto");
assert.equals(parametervalue, "3");

ideally, take caring encoding associated issues, work java.net.url good strings.

thanks your assistance !