Question

I have a large json page which contains url:http://akhilmadanan.tk/Akhil/database.php.
While i am parsing this page using normal json parsing method it shows “OutOfMemoryError”. For this i heard about GSON. Please any body help me get how to read the datas from below page using GSON.
any tutorial?

Answer 1

You can definitely go to links provided by others which are helpful

For brief you can add GSON library in your lib folder.
and use like this.

Gson gson=new Gson();

To get object from json

Model model=gson.fromJson(json,Model.class);

To convert to json

String json=gson.toJson(model);

I run your code and there are 3010 items of object

[
{
"cust_no":"70105615002",
"cust_name":"akhil",
"address":"kajffjkhfhhkjsd",
"area":"58695",
"ranges":"4586",
"plot":"69896",
"multifactor":"85758",
"electricity_meterno":"7895",
"water_meterno":"69358",
"gas_metrno":"78956",
"traffic_code":"4587855",
"last_meter":"58695",
"previous_reading":"25638",
"date":"589687",
"current_usage":"789654",
"current_balance":"45876",
"last_recipt":"236584"
},....

Now make a model equivalent to above name like

@SerializedName("cust_no")
private Long custNo;

@SerializedName("cust_name")
private Long custName;

..........

remember to add one list of same class type like

 @SerializedName("custname")
private List<Customer> customerList;

and generate getters and setters of that Customer class;

after this

parse your data like this

CustomerModel customerModel=gson.fromJson(json,Customer.class);

you get all your data in customerModel;

To access data just use list of that class.

List<Customer> customerList=customerModel.getCustomerList();

Log.v("APP_NAME",""+customerList.size());