Java Jersey 休息服务器 - 以 json 形式返回列表
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Jersey rest server - Return list as json
提问by sjallamander
I'm experiencing a difference in the json structure of a returned list running the same code when running on Tomcat and Glassfish.
在 Tomcat 和 Glassfish 上运行时,运行相同代码的返回列表的 json 结构出现差异。
@XmlRootElement
public Class Person {
private int personId;
private String name;
}
@GET
@Path("/persons")
public Response getPersons()
{
List<Person> persons = new ArrayList<Person>();
persons.add(new Person(1, "John Smith"));
persons.add(new Person(2, "Jane Smith"));
GenericEntity<List<Person>> entity = new GenericEntity<List<Person>>(Lists.newArrayList<persons)) {};
Return Response.ok(entity).build();
}
If returned in json format on tomcat (I'm running Tomcat on local machine) the result will be:
如果在 tomcat 上以 json 格式返回(我在本地机器上运行 Tomcat),结果将是:
[
{
"personId" : "1",
"name" : "John Smith"
},
{
"personId" : "2",
"name" : "Jane Smith"
}
]
And if returned in json format on Glassfish (running Glassfish on remote server) the result will be:
如果在 Glassfish 上以 json 格式返回(在远程服务器上运行 Glassfish),结果将是:
{
"person" :
[
{
"personId" : "1",
"name" : "John Smith"
},
{
"personId" : "2",
"name" : "Jane Smith"
}
]
}
How can I control this format my self? I would prefer the array-format (as on Tomcat) if possible. Either way I want it to produce the same result.
我怎样才能自己控制这种格式?如果可能,我更喜欢数组格式(如在 Tomcat 上)。无论哪种方式,我都希望它产生相同的结果。
Edit:
编辑:
Dependencies: jersey-container-servlet (2.14), jersey-server (2.14), jersey-media-moxy (2.14), javax.servlet-api (3.0.1)
依赖:jersey-container-servlet (2.14), jersey-server (2.14), jersey-media-moxy (2.14), javax.servlet-api (3.0.1)
Version of Glassfish: 3.1.2.2 (build 5)
Glassfish 版本:3.1.2.2(构建 5)
Edit 2: It's a problem with Jersey 2.14 and Glassfish 3.x
编辑 2:这是 Jersey 2.14 和 Glassfish 3.x 的问题
I just installed Glassfish 3 and 4 and deployed the rest app to check the response. It resulted in different json structure when returning a list. The response from Glassfish 4 was identical to the result I got when running on Tomcat.
我刚刚安装了 Glassfish 3 和 4 并部署了其余的应用程序来检查响应。返回列表时会导致不同的 json 结构。Glassfish 4 的响应与我在 Tomcat 上运行时得到的结果相同。
回答by FrAn
Try add the response mediatype annotation and try with the List not GenericEntity like this:
尝试添加响应 mediatype 注释并尝试使用 List 而不是 GenericEntity 像这样:
@GET
@Path("/persons")
@Produces({ MediaType.APPLICATION_JSON })
public Response getPersons()
{
List<Person> persons = new ArrayList<Person>();
persons.add(new Person(1, "John Smith"));
persons.add(new Person(2, "Jane Smith"));
Return Response.ok(persons).build();
}