JSONObject - How to get a value?
I'm using a java class on http://json.org/javadoc/org/json/JSONObject.html.
The following is my code snippet:
String jsonResult = UtilMethods.getJSON(this.jsonURL, null);
json = new JSONObject(jsonResult);
getJSON
returns the following string
{"LabelData":{"slogan":"AWAKEN YOUR SENSES","jobsearch":"JOB SEARCH","contact":"CONTACT","video":"ENCHANTING BEACHSCAPES","createprofile":"CREATE PROFILE"}}
How do I get the value of 'slogan'?
I tried all the methods listed on the page, but none of them worked.
String loudScreaming = json.getJSONObject("LabelData").getString("slogan");
If it's a deeper key/value you're after and you're not dealing with arrays of keys/values at each level, you could recursively search the tree:
public static String recurseKeys(JSONObject jObj, String findKey) throws JSONException {
String finalValue = "";
if (jObj == null) {
return "";
}
Iterator<String> keyItr = jObj.keys();
Map<String, String> map = new HashMap<>();
while(keyItr.hasNext()) {
String key = keyItr.next();
map.put(key, jObj.getString(key));
}
for (Map.Entry<String, String> e : (map).entrySet()) {
String key = e.getKey();
if (key.equalsIgnoreCase(findKey)) {
return jObj.getString(key);
}
// read value
Object value = jObj.get(key);
if (value instanceof JSONObject) {
finalValue = recurseKeys((JSONObject)value, findKey);
}
}
// key is not found
return finalValue;
}
Usage:
JSONObject jObj = new JSONObject(jsonString);
String extract = recurseKeys(jObj, "extract");
Using Map code from https://stackoverflow.com/a/4149555/2301224