Parsing query strings on Android

java android parsing url
Will picture Will · Nov 3, 2009 · Viewed 163.1k times · Source

Java EE has ServletRequest.getParameterValues().

On non-EE platforms, URL.getQuery() simply returns a string.

What's the normal way to properly parse the query string in a URL when not on Java EE?

<rant>

It is popular in the answers to try and make your own parser. This is very interesting and exciting micro-coding project, but I cannot say that it is a good idea :(

The code snippets below are generally flawed or broken, btw. Breaking them is an interesting exercise for the reader. And to the hackers attacking the websites that use them.

Parsing query strings is a well defined problem but reading the spec and understanding the nuances is non-trivial. It is far better to let some platform library coder do the hard work, and do the fixing, for you!

</rant>

Answer

diyism picture diyism · Dec 3, 2010

On Android:

import android.net.Uri;

[...]

Uri uri=Uri.parse(url_string);
uri.getQueryParameter("para1");

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