Blackberry get JSON from web server URL

Question

I have JSON code like this:

[{ "idShipping":"1328448569",
   "shippingDesti":"nusa tenggara barat",
   "shippingCosts":"21000"
 },
 { "idShipping":"1328448543",
   "shippingDesti":"nusa tenggara timur",
   "shippingCosts":"76000"
 }]

I followed a tutorial from this link: BlackBerry read json string from an URL . I changed

private static final String NAME = "name";

from DataParser.java into

private static final String NAME = "idShipping";

but when i run it on a simulator, it showed a popup screen that said that it failed to parse data from MyScreen.java. It means I can get the JSON string, but I can't parse it.

How do I fix it?

Answer 1

For the JSON you've shown, you would parse the idShipping values something like this:

  //String response = "[{\"idShipping\":\"1328448569\",\"shippingDesti\":\"nusa tenggara barat\",\"shippingCosts\":\"21000\"},{\"idShipping\":\"1328448543\",\"shippingDesti\":\"nusa tenggara timur\",\"shippingCosts\":\"76000\"}]";
  try {
     JSONArray responseArray = new JSONArray(response);
     for (int i = 0; i < responseArray.length(); i++) {
        JSONObject nextObject = responseArray.getJSONObject(i);
        if (nextObject.has("idShipping")) {
           String value = nextObject.getString("idShipping");
           System.out.println("next id is " + value);
        }
     }
  } catch (JSONException e) {
     // TODO: handle parsing error here
  }

The key, as Signare said, was parsing a JSONArray , and then getting a string value out of that.