A good library to do URL Query String manipulation in Java [closed]

I need to do a few very simple URL manipulations in Java. Like get the value for a parameter in the query, or update it, ... I was expecting to find a simple utility class doing that in the commons-lang package, but no. I know it is a simple problem, but if there is something already written, why do it again ? Do you know of any ?

I would like to have at least the following capabilities :

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

// get the value of a parameter
String parameterValue = UrlUtils.getParameterValue(myUrl, "toto");
Assert.equals(parameterValue, "1");

// update a parameter
String newUrl = UrlUtils.updateParameter(myUrl, "toto", 3);
parameterValue = UrlUtils.getParameterValue(myUrl, "toto");
Assert.equals(parameterValue, "3");

Ideally, it would take care of all encoding related issues, and work with java.net.Url as well as with Strings.

Thanks for your help !

Asked by: Julian839 | Posted: 23-01-2022

Answer 1

I think what you want is called a query string parser instead of an url manipulator and here's one: http://ostermiller.org/utils/CGIParser.java.html

Answered by: Roland594 | Posted: 24-02-2022

Answer 2

Apache's httpcomponents library has a URL decoder: http://hc.apache.org/httpcomponents-client-ga/httpclient/apidocs/org/apache/http/client/utils/URLEncodedUtils.html

Httpcomponents is the successor to commons http client.

Answered by: Kirsten405 | Posted: 24-02-2022

Answer 3

Indeed has released an efficient Java library for query string and number parsing:



(Disclaimer: I am an engineering director at Indeed.)

Answered by: Patrick806 | Posted: 24-02-2022

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