调用WS REST时，“由于输入结束，没有要映射到对象的内容”

Question

考虑以下方法：

@POST
@Path("/device")
@Consumes("application/json")
@Produces("application/json")
public String putDevice(String jsonObject, @Context HttpHeaders headers, Admin admin)
{
    ObjectMapper mapper = new ObjectMapper();

    try
    {
        return updateDevice(mapper.readTree(jsonObject), Utils.extractUserInfo(headers), admin.getServer(), admin.getPort());
    }
    catch (JsonProcessingException e)
    {
        return e.getMessage();
    }
    catch (IOException e)
    {
        return e.getMessage();
    }
}

@POST
@Path("/device")
@Consumes("application/json")
@Produces("application/json")
public Response putDevice(@Context HttpHeaders headers, Admin admin)
{
    String output = admin.toString();
    return Response.status(200).entity(output).build();
}

Answer 1

由于Arnaud发布的链接，我了解到您只能有一个没有注释的参数，并且其中一个将作为请求主体进行处理。所以我做了必要的修改，下面是该方法现在的样子：

@POST
@Path("/device")
@Consumes("application/json")
@Produces("application/json")
public String putDevice(String jsonString, @Context HttpHeaders headers)
{
    ObjectMapper mapper = new ObjectMapper();
    try
    {
    JSONObject jsonObject = new JSONObject(jsonString);
    return updateDevice(mapper.readTree(jsonString),
                        Utils.extractUserInfo(headers),
                        jsonObject.getString("server"),
                        jsonObject.getInt("port"));
}
    catch (JSONException e)
    {
        return e.getMessage();
    }
    catch (JsonProcessingException e)
    {
        return e.getMessage();
    }
    catch (IOException e)
    {
        return e.getMessage();
    }
}

我希望有一天它能帮助其他人解决同样的问题。