java - Dropwizard/Jersey将Java列表作为JSON返回而没有根节点

我正在使用将jersey＆jackson用于json的dropwizard。我的问题是，当我返回列表时，它没有指定根目录。

我有一个POJO课:

public class Company {
public String id;
public String name;
public String address;
}

这样我的资源就建立了:

@GET
@Path("/companies/all")
public List<Company> getAllCompanies(){
    ...
    return companies;
}

我得到以下回应:

[{
"id": "01",
"name": "Yammer Corp",
"address": "1 Finite Loop"
},
{
"id": "02",
"name": "DropWizards Inc",
"address": "4 Magic Square, Olympus"
}]

虽然我想要的是以下内容:

{"Companies" :
[{
"id": "01",
"name": "Yammer Corp",
"address": "1 Finite Loop"
},
{
"id": "02",
"name": "DropWizards Inc",
"address": "4 Magic Square, Olympus"
}
]}

有任何想法吗？提前致谢。

最佳答案

您需要再创建一个包装List<Company>的POJO

public class ApiResponse
{
   private List<Company> Companies;
   //Getter and Setter
   //Public Constructor
}

GET方法中所需的更改是:

@GET
@Path("/companies/all")
public ApiResponse getAllCompanies(){
    //Set your ApiResponse Object with the companies List.
    ApiResponse apiResponse = new ApiResponse(companies);
    return apiResponse;
}