{
    "query": {
        "pages": {
            "7931046": {
                "pageid": 7931046,
                "ns": 0,
                "title": "Tang Aidi",
                "revisions": [
                    {
                        "contentformat": "text/x-wiki",
                        "contentmodel": "wikitext",
                        "*": "SOME TEXT"
                    }
                ]
            }
        }
    }
}

JSONObject["pages"] not found

JSONObject obj = new JSONObject(sEntireContent);
            JSONObject oParse=(JSONObject) obj.get("query");
            //JSONArray oPages=oParse.getJSONArray("pages");
>>>>>>>>>>  JSONObject oPages=(JSONObject) obj.get("pages");
            JSONObject firstPage=(JSONObject) oPages.get(0);
            JSONObject oRevisions=(JSONObject) firstPage.get("revisions");
            sWikitext=oRevisions.getString ("*");