java中如何使用Jackson将json串中带下划线的属性转换为驼峰属性呢?

实现思路:
    只需设置相应的转换属性即可
	如:
    mapper.setPropertyNamingStrategy(PropertyNamingStrategy.CAMEL_CASE_TO_LOWER_CASE_WITH_UNDERSCORES);

 
public class JacksonTest {
    public static void main(String[] args) throws JsonParseException, JsonMappingException, IOException {
        ObjectMapper mapper = new ObjectMapper();
        String json = "{\"user_name\":\"java265\",\"id_number\":\"879877823237877\"}";
        mapper.setPropertyNamingStrategy(PropertyNamingStrategy.CAMEL_CASE_TO_LOWER_CASE_WITH_UNDERSCORES);
        O o = (O) mapper.readValue(json, O.class);
        System.out.println(o.getIdNumber());
        }
    }
    class O implements Serializable{
        private static final long serialVersionUID = -3004824622398622080L;
        private String userName ;
        private String idNumber ;
        public String getUserName() {
            return userName;
        }
        public void setUserName(String userName) {
            this.userName = userName;
        }
        public String getIdNumber() {
            return idNumber;
        }
        public void setIdNumber(String idNumber) {
            this.idNumber = idNumber;
     }
}