Convert ArrayList<Map<String, String>> to jsonArray

Question

i need to convert my ArrayList<Map<String, String>> object to the JSONArray

ArrayList<Map<String, String>> dataList = new ArrayList<Map<String, String>>();
//I tried this

JSONArray jsonArray = new JSONArray(dataList);  

// I am importing (java-json.jar) for converting ArrayList to JSONArray
// But i can't put this array in to JqGrid in my jsp page it's does not give me any output

show your jsp source code

Leos Literak
– Leos Literak

2014-03-14 07:08:48 +00:00
Commented Mar 14, 2014 at 7:08 — Leos Literak
– Leos Literak, Commented Mar 14, 2014 at 7:08

Purushotham · Accepted Answer · 2014-03-14 07:23:54Z

2

You can try Google's Gson library for easy conversion of Java objects to Json and vice versa

Try below code

Gson gson = new Gson();
JsonArray jsonArray = gson.toJsonTree(dataList).getAsJsonArray();

EDIT : Convert jsonArray to string

String jsonStr = gson.toJson(jsonArray); //This will convert JsonArray to Java string

edited Mar 14, 2014 at 7:23

answered Mar 14, 2014 at 7:12

Purushotham

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2 Comments

Chintan Over a year ago

i will try you code if know how to convert that data into Json String then please tell me.

Chintan Over a year ago

Uttam Thanks for the giving me response.

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