JSON.simple example – Read JSON

<dependency>
<groupId>com.googlecode.json-simple</groupId>
<artifactId>json-simple</artifactId>
<version>1.1</version>
</dependency>

Use JSONParser to read above generated JSON file “test.json“, and display each of the values.

import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.Iterator;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;

public class JsonSimpleExample {
public static void main(String[] args) {

JSONParser parser = new JSONParser();

try {

Object obj = parser.parse(new FileReader(“c:\\test.json”));

JSONObject jsonObject = (JSONObject) obj;

String name = (String) jsonObject.get(“name”);
System.out.println(name);

long age = (Long) jsonObject.get(“age”);
System.out.println(age);

// loop array
JSONArray msg = (JSONArray) jsonObject.get(“messages”);
Iterator<String> iterator = msg.iterator();
while (iterator.hasNext()) {
System.out.println(iterator.next());
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (ParseException e) {
e.printStackTrace();
}
}
}

Output:

seleniumsuite.in
100
msg 1
msg 2
msg 3

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