jackson驼峰转下划线注解_使用Jackson转换带下划线的属性为驼峰属性

使用jackson时，如果json的属性使用下划线，而实体的属性使用驼峰式，怎么办？

很简单，直接贴代码

public class JacksonTest {

public static void main(String[] args) throws JsonParseException, JsonMappingException, IOException {

ObjectMapper mapper = new ObjectMapper();

String json = "{\"user_name\":\"bflee\",\"id_number\":\"123456\"}";

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;

}

}