Parse a query string parameter to java object

Question

I have query string like that:

ObjectGUId=1abcde&ObjectType=2&ObjectTitle=maximumoflife&Content=racroi&TimeStamp=2012-11-05T17:20:06.056

And I have Java Object:

LogObject{
    private String ObjectGUId;
    private String ObjectType;
    private String ObjectTitle;
    private String Content;
    private String TimeStamp;
}

So i want to parse this query string to this java Object.

I've searched and read many question but not gotten correct answer yet.

Show me what can solve this problem.

Answer 1

Inspired by @bruno.braga, here's a way using Apache http-components. You leverage all the parsing corner cases:

List<NameValuePair> params = 
    URLEncodedUtils.parse("http://example.com/?" + queryString, Charset.forName("UTF-8"));

That'll give you a List of NameValuePair objects that should be easy to work with.

Answer 2

If you do not really need to push the querystring into your own class (you might want that though), instead of parsing it manually, you could use the URLDecoder, as @Sonrobby has commented:

String qString = "ObjectGUId=1abcde&ObjectType=2&ObjectTitle=maximumoflife";
Uri uri = Uri.parse(URLDecoder.decode("http://dummy/?" + qString, "UTF-8"));
if (uri != null) {
    for(String key: uri.getQueryParameterNames()) {
        System.out.println("key=[" + key + "], value=[" + uri.getQueryParameter(key) + "]");
    }
}            

The "dummy" looks dirty but it is required if what you only have is the querystring values (qString). If you have the complete URL, just pass it directly to the URLDecoder, and you are done.