Convert a json array to an hashmap<string,object>

Question

I have an external parsed List type which is a json array, indeed this call

list.toString()

gives me this:

[{name=prop1, content=<something>},{name=prop2, content=<something>}]

The content could be anything, an array, a string, an int... So I'd like to map that json array to something like

HashMap<String,Object> converted;

This would allow me to do this:

converted.get("prop1"); //this will give me the <something>

how could I do that?

I believe you cannot do that directly... Either go through a parser, create POJOs or parse the JSON directly — fge
– fge, Commented Mar 25, 2014 at 19:23
If they're just Strings, you could use something like [MapSplitter](./guava/src/com/google/common/base/). — Justin Jasmann
– Justin Jasmann, Commented Mar 25, 2014 at 19:28
Just because it has [] and {}, doesn't mean it is JSON. Look into the JSON format. — Sotirios Delimanolis
– Sotirios Delimanolis, Commented Mar 25, 2014 at 19:28

Arjit · Accepted Answer · 2014-03-25 19:36:59Z

2

Try this using JSON Parser. Get the JSON lib from here json.simple

Map<String, Object> map = new HashMap<>();

JSONParser parser = new JSONParser();

try {

  Object obj = parser.parse(list);

  JSONArray jsonArray = (JSONArray)obj;

  Iterator<JSONObject> iterator = jsonArray.iterator();
  while (iterator.hasNext()) {
       JSONObject jsonObj = iterator.next();
      String name = (String) jsonObject.get("name");
       Object content = (Object) jsonObject.get("content");
       map.put(name, content);
  }
} catch (ParseException p) { }

edited Mar 25, 2014 at 19:36

answered Mar 25, 2014 at 19:31

Arjit

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1 Comment

Arjit Over a year ago

no..i forgot to add the code for parsing...now i have edited my code

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