1. Jackson
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.12.2</version>
</dependency>
ObjectMapper objectMapper = new ObjectMapper();
public class Person {
private String name;
private int age;
// Getters and setters
// toString() implementation
}
Person person = new Person();
person.setName("John");
person.setAge(30);
String json = objectMapper.writeValueAsString(person);
System.out.println(json);
String json = "{\"name\":\"John\",\"age\":30}";
Person person = objectMapper.readValue(json, Person.class);
System.out.println(person.getName());
System.out.println(person.getAge());
2. Gson
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.8.7</version>
</dependency>
Gson gson = new Gson();
public class Person {
private String name;
private int age;
// Getters and setters
// toString() implementation
}
Person person = new Person();
person.setName("John");
person.setAge(30);
String json = gson.toJson(person);
System.out.println(json);
String json = "{\"name\":\"John\",\"age\":30}";
Person person = gson.fromJson(json, Person.class);
System.out.println(person.getName());
System.out.println(person.getAge());
