[JAVA] json -> map, map -> json 변환

json -> map 변환

import com.fasterxml.jackson.databind.ObjectMapper;

ObjectMapper mapper = new ObjectMapper();
Map<String, Object> map = mapper.readValue(jsonStr, Map.class);

 

map -> json 변환

import com.fasterxml.jackson.databind.ObjectMapper;

ObjectMapper mapper = new ObjectMapper();
String json = mapper.writeValueAsString(map); 
json = mapper.writerWithDefaultPrettyPrinter().writeValueAsString(map);