Create JSON Array using Java EE 7

Question

I am trying to create an JSON Array using Java EE 7 libraries.

import javax.json.Json;
import javax.json.JsonArray;
import javax.json.JsonObject;

jsonregistration=(JsonArray) Json.createArrayBuilder()
   .add("APA91bE58Q")
   .add("APA91bGT_sd")
   .build();

Works perfectly fine Assuming i have tons of create the list and it is read from database. When i tried to iterate the code, it doesn't work.

jsonregistration=(JsonArray) Json.createArrayBuilder();
while(rs.next())
{
    jsonregistration.add(rs.getString(1));
}
jsonregistration.build();

Doesn't work.

What doesn't work? it doesn't add any thing to array? if so might be your resultset don't have anything in it to add. — Sanjeev
– Sanjeev, Commented Apr 8, 2016 at 8:12
No my resultset returns a value. just that when jsonregistration.add(rs.getString(1)); it returns an error no suitable method found for add(String) method Collection.add(JsonValue) is not applicable (argument mismatch; String cannot be converted to JsonValue) — Rohan Bhatte
– Rohan Bhatte, Commented Apr 8, 2016 at 8:36

Sanjeev · Accepted Answer · 2016-04-08 09:10:03Z

1

Json.createArrayBuilder() returns an object of type JSONArrayBuilder so you have to write your code like this and it will work

JsonArrayBuilder jsonregistration= Json.createArrayBuilder();
while(rs.next())
{
    jsonregistration.add(rs.getString(1));
}
JsonArray jsonArray =  jsonregistration.build();

answered Apr 8, 2016 at 9:10

Sanjeev

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