java parse_str alternative - for http response

Question

Facebook server side login sends response in the format:

access_token=USER_ACCESS_TOKEN&expires=NUMBER_OF_SECONDS_UNTIL_TOKEN_EXPIRES

Is there a way to parse this conveniently in Java, other than writing custom code? Something like parse_str in PHP.

EDIT: This question has nothing to do with query string or request, It is about parsing request body in the above format.

Even if it weren't closed as "duplicate", it doesn't say enough of what you want to do. Can you expand *on what you want to do* specifically. Start by provide examples of original data, and how you want it to look. — Jesse, Apr 30 '13 at 18:16
The question is quite simple. I want to parse an HTTP **response** where the body of the response is in the given format. Obviously I can write custom code as @gerrytan suggested, but I want to know if there is some Java class that already handles this parsing. — arahant, Apr 30 '13 at 18:24
Your comment *makes sense*, but your question doesn't; as a suggestion: I think you should reword your question to match what you've said in the comment above. Now, to answer your question: No, there doesn't seem to be any built-in class/functions that will accomplish this, **however** (!), there is an [Apache HTTPMessageParser](http://hc.apache.org/httpcomponents-core-ga/httpcore/apidocs/org/apache/http/io/HttpMessageParser.html) which seems to do it. — Jesse, Apr 30 '13 at 18:42

score 2 · Answer 1 · answered Apr 24 '13 at 14:49

2

You can write a simple parser using string split method and a map, something like this:

Map<String,String> fbParam = new HashMap<String,String> ();
String[] pairs = fbResp.split("&");
for(String pair : pairs) {
  String[] keyval = pair.split("=");
  fbParam.put(keyval[0], keyval[1]);
}

answered Apr 24 '13 at 14:49

gerrytan

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Actually that is what I would do, but it seems strange there's no in-built way to do this. – arahant Apr 24 '13 at 16:35

score 0 · Answer 2 · answered Apr 25 '13 at 09:21

0

If you're in a Java EE environment, you could use ServletRequest.getParameter().

You might also consider using the Web4J Framework's request parser.

answered Apr 25 '13 at 09:21

einpoklum

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I want to do this for response, not request – arahant Apr 26 '13 at 04:28

java parse_str alternative - for http response

2 Answers2