Hash map array list to JSON array in android?

Question

"order_item" : [{"price":"250.00","product_code":"1","quantity":"2","
total":"500.00"},
{"price":"200.00","product_**code":"2","quantity":"1","**total":"200.00"} ]
}

I have to convert my hash map array list into above json array format.In my first position of array list i have sets like price=250.00,product_code=1,quantity=2,total:500.00,in my second position price=60.00,product_code=55,quantity=10,total:600.00 and so on.Any of them know answer help me.

Gson gson = new Gson(); String json = gson.toJson(YourHashMaphere); System.out.println("json = " + json); Go to this link for More information :Guide To JSON . it might help you — Nirav Tukadiya
– Nirav Tukadiya, Commented Jan 10, 2013 at 13:10
This is my array list values : [{item_quantity=2, item_nmae=Chargrilled vegetable salad, Product_id=17, item_price=100, Total=200, avaliable_quantity=12}, {item_quantity=1, item_nmae=Mushroom Soup, Product_id=12, item_price=120, Total=120, avaliable_quantity=28}] — Yugesh
– Yugesh, Commented Jan 10, 2013 at 13:56
and tryied like this for(int i=0;i<alist.size();i++) { alist_item.put("product_code",""+alist.get(i).get(PRODUCT_ID)); //Log.d("jSON", ""+alist.get(i).get(PRODUCT_ID)); alist_item.put("quantity", ""+alist.get(i).get(ITEM_QUANTITY_COLUMN)); alist_item.put("price",""+alist.get(i).get(ITEM_PRICE_COLUMN)); alist_item.put("total",""+alist.get(i).get(TOTAL_COLUMN)); jsonArray.put(alist_item); } — Yugesh
– Yugesh, Commented Jan 10, 2013 at 13:57

Ilya · Accepted Answer · 2013-01-10 14:18:12Z

6

public class Product 
{
   private String price;

   private String product_code;

   private String quantity;

   private int total;

   public Product(String price, String product_code, String quantity, int total)
   {
      this.price = price;
      this.product_code = product_code;
      this.quantity = quantity;
      this.total = total;
   }
}

business logic

new Gson().toJson(map);

usage

      Product pr1 = new Product("str1", "str1", "str1", 250);
      Product pr2 = new Product("str2", "str2", "str2", 200);
      List<Product> list = new ArrayList<Product>();
      list.add(pr1);
      list.add(pr2);
      Map<String, List<Product>> map = new HashMap<String, List<Product>>();
      map.put("order_item", list);

      System.out.println(new Gson().toJson(map));

EDIT (using json.org)

      Map<String, String> jsonMap1 = new HashMap<String, String>();
      jsonMap1.put("price", "250.00");
      jsonMap1.put("product_code", "1");
      jsonMap1.put("quantity", "2");
      jsonMap1.put("total", "200");
      Map<String, String> jsonMap2 = new HashMap<String, String>();
      jsonMap2.put("price", "250.00");
      jsonMap2.put("product_code", "1");
      jsonMap2.put("quantity", "2");
      jsonMap2.put("total", "200");

      JSONObject json1 = new JSONObject(jsonMap1);
      JSONObject json2 = new JSONObject(jsonMap2);

      JSONArray array = new JSONArray();
      array.put(json1);
      array.put(json2);

      JSONObject finalObject = new JSONObject();
      finalObject.put("order_item", array);

      System.out.println(finalObject.toString());

EDIT2 (using Gson)

      Map<String, String> jsonMap1 = new HashMap<String, String>();
      jsonMap1.put("price", "250.00");
      jsonMap1.put("product_code", "1");
      jsonMap1.put("quantity", "2");
      jsonMap1.put("total", "200");
      Map<String, String> jsonMap2 = new HashMap<String, String>();
      jsonMap2.put("price", "250.00");
      jsonMap2.put("product_code", "1");
      jsonMap2.put("quantity", "2");
      jsonMap2.put("total", "200");
      List<Map<String, String>> list = new ArrayList<Map<String, String>>();
      list.add(jsonMap1);
      list.add(jsonMap2);
      Map<String, List<Map<String, String>>> map = new HashMap<String, List<Map<String, String>>>();
      map.put("order_item", list);

      System.out.println(new Gson().toJson(map));

edited Jan 10, 2013 at 14:18

answered Jan 10, 2013 at 13:23

Ilya

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9 Comments

Yugesh Over a year ago

in side my array list like this price=250.00,product_code=1,quantity=2,total:500.00

Ilya Over a year ago

@yugesh what type has this? Is it String?

Yugesh Over a year ago

ashMap<String, String> map = new HashMap<String, String>(); map.put(PRODUCT_ID, ""+Submenu_id); map.put(ITEM_AVALIABLE_QUANTITY, ""+item_quantity); map.put(ITEM_NAME_COLUMN,""+item_name); map.put(ITEM_PRICE_COLUMN,"" + item_price); map.put(ITEM_QUANTITY_COLUMN, "" + quantity); map.put(TOTAL_COLUMN, "" + Total); alist.add(map);

Yugesh Over a year ago

This is my array list values llya : [{item_quantity=2, item_nmae=Chargrilled vegetable salad, Product_id=17, item_price=100, Total=200, avaliable_quantity=12}, {item_quantity=1, item_nmae=Mushroom Soup, Product_id=12, item_price=120, Total=120, avaliable_quantity=28}]

Yugesh Over a year ago

k i tried and say.i got one thing to convert array list using gson its just automatically convert the array list to json array list llya

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