sparkjava : problems passing urls as parameter to routes

With sparkjava you can build a helloworld website within lessthan a minute like Node Express (http://expressjs.com/).

Passing url parameters :
Consider creating a route like: http://host:port/url ( e.g. http://localhost:4567/https://finance.yahoo.com/q/ks?s=VNJTX+Key+Statistics )
whereas the black url portion you want to pass as parameter.
This can be done very easily using splats (http://sparkjava.com/documentation.html).
With the following code in your route:

1. port(8081);//lets start our server on port 8081
2. get("/", (request, response) -> "Welcome to HelloWorld Server! :)");
3. get("/*", (request, response) -> {
4.     String url = request.splat()[0];//take the first splat param value
5.     return "Requested url : " + url;
6.     });

And here the problem comes:

It prints:

1. Requested url : https:/finance.yahoo.com/q/ks

The first thing is that it has removed the query string.

On top of that https:/finance.yahoo.com/q/ks

is not a valid url.

See https://github.com/perwendel/spark/issues/304#issuecomment-114055123 and https://github.com/perwendel/spark/issues/304#issuecomment-114793493

To solve this:

We can simply do some manipulate on the urls ourselves:

Corrected codes:

1. get("/*", (request, response) -> {
2.     String url = request.splat()[0];//take the first splat param value
3.     url = manipulateUrl(url, request.queryString());
4.     return "Requested url : " + url;
5.     });
7. //let's modify url param
8. public static String manipulateUrl(String urlStr, String queryStr) throws URISyntaxException, MalformedURLException, UnsupportedEncodingException {
9.     urlStr = urlStr.replaceFirst("/", "//");
10.     if (queryStr.length() >= 0) {
11.         urlStr = urlStr + "?" + queryStr;
12.     }
13.     return urlStr;
14.     }