java json字符串追加属性

public static void main(String[] args) {
        ObjectMapper objectMapper = new ObjectMapper();
        ObjectNode jsonNodes = null;
        String json = "{"artist":"babalaba","name":"《舞》","projectName":"《舞》","publisher":"lulalahu"}";
        System.out.println(json);
        try {
            jsonNodes = objectMapper.readValue(json, ObjectNode.class);
            jsonNodes.put("FileSize", "fileSize");
            jsonNodes.put("FileType", "fileType");
            jsonNodes.put("FileHash", "filemd5");
            jsonNodes.put("CryptType ", "MD5");
            json = objectMapper.writeValueAsString(jsonNodes);
        } catch (JsonProcessingException e) {
            e.printStackTrace();
        }
        System.out.println(json);
    }

put报红的原因

jar包不对 正确jar包

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ObjectNode;