java - 如何使我的 JSON 格式成为某种格式？

Question

我希望我的 JSON 响应采用某种格式。

这是我的公司，位置信息看起来像

public class Company {
   private List<LocationInfo> companies;
   // gettts and setters
}

公共(public)类位置信息{

  private String localCompanyID;
  private String localCompanyName;

  // gettts and setters

}

我的 Controller 如下所示

 @GetMapping(value = "/url", produces = MediaType.APPLICATION_JSON_VALUE)
 public ResponseEntity<LocationInfo> getLocationMaster() {
     ResponseEntity response;
     List<LocationInfo> companies = getAllCompanies();
     // some code goes here
     response = new ResponseEntity<>(localCompanies, HttpStatus.OK);
     return response;
 }

这就是我得到的

 [
    {
      "localCompanyID": "33",
      "localCompanyName": "Company-A"
    },
    {
      "localCompanyID": "45",
      "localCompanyName": "Company-B"
    }
 ]

我期望得到如下回复。

{
  "localCompanies": [
   {
     "localCompanyID": "33",
     "localCompanyName": "Company-A"
   },
   {
     "localCompanyID": "45",
     "localCompanyName": "Company-B"
   }
 ]

}

提前致谢。

Answer 1

创建一个响应 DTO 类并将您的列表添加到其中:

@AllArgsConstructor(staticName = "of")
class LocalCompaniesResponseDto {
  List<LocationInfo> localCompanies;
}

new ResponseEntity<>(LocalCompaniesResponseDto.of(localCompanies), HttpStatus.OK)