import org.json4s.*;
import org.json4s.jackson.*;
String jsonString = "{\"name\":\"John\",\"age\":30}";
ObjectMapper mapper = new ObjectMapper();
JsonNode node = mapper.readTree(jsonString);
String name = node.get("name").asText();
int age = node.get("age").asInt();
System.out.println("Name: " + name);
System.out.println("Age: " + age);
import org.json4s.*;
import org.json4s.jackson.*;
JSONObject jsonObject = new JSONObject();
jsonObject.put("name", "John");
jsonObject.put("age", 30);
System.out.println(jsonObject.toString());
import org.json4s.*;
import org.json4s.jackson.*;
class Person {
public String name;
public int age;
}
Person person = new Person();
person.name = "John";
person.age = 30;
ObjectMapper mapper = new ObjectMapper();
String jsonString = mapper.writeValueAsString(person);
System.out.println(jsonString);
Person deserializedPerson = mapper.readValue(jsonString, Person.class);
System.out.println(deserializedPerson.name);
System.out.println(deserializedPerson.age);
import org.json4s.*;
import org.json4s.jackson.*;
class Person {
public String name;
public Date birthDate;
}
Person person = new Person();
person.name = "John";
person.birthDate = new Date();
ObjectMapper mapper = new ObjectMapper();
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
mapper.setDateFormat(dateFormat);
String jsonString = mapper.writeValueAsString(person);
System.out.println(jsonString);
