I have a JSON data which is parsed to an Android App.
{"tag":"Login","tdata":[{"ID":[["C1","C2"]],"Name":[["ABC","PQR"]]}]}
I want to extract the data C1, C2, ABC, PQR in separate string variables. How can I do it?
When I tried the following code:
JSONObject json=data.getJsonArray(0);
JSONArray id=json.getJSONArray("ID");
System.out.println(id);
This was the output:
[["C1","C2"]]
I think beauty is in simplicity so look at this:
String str = "{\"tag\":\"Login\",\"tdata\":[{\"ID\":[[\"C1\",\"C2\"]],\"Name\":[[\"ABC\",\"PQR\"]]}]}";
System.out.println(str);
JSONObject all;
try {
all = new JSONObject(str);
JSONArray data = all.getJSONArray("tdata"); //data = [{"ID":[["C1","C2"]],"Name":[["ABC","PQR"]]}]
JSONObject insideData=data.getJSONObject(0); // insideData = {"ID":[["C1","C2"]],"Name":[["ABC","PQR"]]}
JSONArray C1C2OutterArray=insideData.getJSONArray("ID"); // C1C2OutterArray = [["C1","C2"]]
JSONArray C1C2InnerArray=C1C2OutterArray.getJSONArray(0); // C1C2InnerArray = ["C1","C2"]
String C1 = C1C2InnerArray.getString(0); // C1 = C1
String C2 = C1C2InnerArray.getString(1); // C2 = C2
JSONArray nameOutterArray=insideData.getJSONArray("Name");// nameOutterArray = [["ABC","PQR"]]
JSONArray nameInnerArray=nameOutterArray.getJSONArray(0); // nameInnerArray = ["ABC","PQR"]
String ABC = nameInnerArray.getString(0); // ABC = ABC
String PQR = nameInnerArray.getString(1); // PQR = PQR
} catch (JSONException e) {
e.printStackTrace();
}
working code
package com.test;
import org.codehaus.jettison.json.JSONArray;
import org.codehaus.jettison.json.JSONException;
import org.codehaus.jettison.json.JSONObject;
public class Test{
public static void main(String[] args) {
String s = "{\"tag\":\"Login\",\"tdata\":[{\"ID\":[[\"C1\",\"C2\"]],\"Name\":[[\"ABC\",\"PQR\"]]}]}";
System.out.println("=>" + s);
JSONObject json;
try {
json = new JSONObject(s);
JSONArray jsonArray = json.getJSONArray("tdata");
for (int i = 0 ; i < jsonArray.length() ; i++) {
JSONObject another_json_object = (JSONObject) jsonArray.get(i);
JSONArray jsonArray1 = another_json_object.getJSONArray("ID");
for (int j = 0 ; j < jsonArray1.length() ; j++) {
JSONArray jsonArray11 = (JSONArray) jsonArray1.get(j);
for (int j1 = 0 ; j1 < jsonArray11.length() ; j1++) {
System.out.println(jsonArray11.get(j1));
}
}
JSONArray jsonArray2 = another_json_object.getJSONArray("Name");
for (int k = 0 ; k < jsonArray2.length() ; k++) {
JSONArray jsonArray21 = (JSONArray) jsonArray2.get(k);
for (int k1 = 0 ; k1 < jsonArray21.length() ; k1++) {
System.out.println(jsonArray21.get(k1));
}
}
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}
Output=>
=>{"tag":"Login","tdata":[{"ID":[["C1","C2"]],"Name":[["ABC","PQR"]]}]}
C1
C2
ABC
PQR
All you need is to understand the JsonObject Api of java a little better : http://examples.javacodegeeks.com/core-java/json/java-json-parser-example/
