jackson

package jp.co.jackson;

import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;

import lombok.Getter;
import lombok.Setter;
import lombok.ToString;

public class SampleJackson1 {
  private static ObjectMapper mapper = new ObjectMapper();
	
  public static void main(String[] args) throws JsonProcessingException {
    String json = "[{\"id\":20,\"name\":\"takahashi\"},{\"id\":20,\"name\":\"higashiguchi\"}]";
		
    List<Emp> person1 = mapper.readValue(json,new TypeReference<List<Emp>>() {});
    System.out.println(person1);
		
    json = "{\"id\":20,\"name\":\"takahashi\"},{\"id\":20,\"name\":\"higashiguchi\"}";
		
    Map<String,String> person2 = mapper.readValue(json,new TypeReference<LinkedHashMap<String,String>>() {});
    System.out.println(person2);
  }
}
@Getter
@Setter
@ToString
class Emp {
  private String id;
  private String name;
}