java - 如何将Java对象转换为Json格式化属性名

Question

我目前正在将 Rest 服务从 RestExpress 迁移到 Jersey 框架，我必须在其中具有与 RestExpress 相同的输出。

public class AnnouncementDTO {

    private String id;
    private String title;
    private String details;
    private String postedBy;

    private String permanent;
    private String dismissible;

    private String startDate;
    private String endDate;

}

ObjectWriter ow = new ObjectMapper().writer().withDefaultPrettyPrinter();
String json = ow.writeValueAsString(announcementDTO );

输出:

{
  "id" : null,
  "title" : "<font size=\"3\" color=\"red\">This is some text!</font>",
  "details" : "<p>fhmdhd</p>",
  "postedBy" : "Portal, Administrator",
  "permanent" : null,
  "dismissible" : null,
  "startDate" : "Jul 19, 2014, 04:44 AM IST",
  "endDate" : null,
  "read" : null
}

我的要求是将属性名称格式化为 postedBy 到 posted_by。因此预期结果如下。

{
  "title":"<font size=\"3\" color=\"red\">This is some text!</font>",
  "details":"<p>fhmdhd</p>",
  "posted_by":"Portal, Administrator",
  "start_date":"Jul 19, 2014, 04:44 AM ET"
}

Answer 1

@JsonProperty("posted_by")
private String postedBy;