<dependencies>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.13.0</version>
</dependency>
</dependencies>
import com.fasterxml.jackson.databind.ObjectMapper;
public class JsonUtils {
public static String objectToJson(Object object) throws Exception {
ObjectMapper objectMapper = new ObjectMapper();
return objectMapper.writeValueAsString(object);
}
public static <T> T jsonToObject(String json, Class<T> type) throws Exception {
ObjectMapper objectMapper = new ObjectMapper();
return objectMapper.readValue(json, type);
}
public static void main(String[] args) throws Exception {
User user = new User("John", 28);
String json = objectToJson(user);
System.out.println("JSON: " + json);
User restoredUser = jsonToObject(json, User.class);
System.out.println("Restored user: " + restoredUser.getName() + ", " + restoredUser.getAge());
}
}
class User {
private String name;
private int age;
public User(String name, int age) {
this.name = name;
this.age = age;
}
}
