調用 response.getStatus 時，Response 為 NULL，客戶端是否未針對 Web 服務中的內容？

Question

我需要 GET 的網絡服務資源：

 @GET
 @Produces(MediaType.APPLICATION_JSON)
 @Path("/status")
 public Response checkNode() {
        boolean status = !NlpHandler.getHandlerQueue().isEmpty();
        status = status || !NlpFeeder.getInstance().getFiles().isEmpty();

        int statusCode = status ? 200 : 420;
        LOG.debug(
            "checking status - status: " + statusCode
            + ", node: " + this.context.getAbsolutePath()
        );

        return Response.status(statusCode).build();
}

相關客戶：

public class NodeClient {
    private final Client client;
    private final WebTarget webTarget;

    public NodeClient(String uri) {
        this.uri = "some uri";
        client = ClientBuilder.newCLient();
        webTarget = client.target(uri);

    public synchronized boolean checkNode() throws IOException {
        String path = "status";
        Response response = webTarget
            .path(path)
            .request(MediaType.APPLICATION_JSON)
            .get(Response.class);

        int responseCode = response.getStatus();

        boolean success = responseCode == 200;
        if (!success && responseCode != 420) {
            checkResponse(response);
        }

        return success;
    }
}

在我的測試中，我在int responseCode = response.getStatus()得到了一個空指針，我很確定我沒有以正確的方式使用webTarget得到響應。 看起來我可以通過 POST 響應正確地做到這一點，但在期待 GET 時卻不能。

    @Test
    public void testCheckNode() throws Exception {
        Response response = Mockito.mock(Response.class);
        Mockito
            .doReturn(response)
            .when(builder)
            .get();

        NodeClient nodeClient;

        Mockito
            .doReturn(200)
            .when(response)
            .getStatus();

        try {
            boolean success = nodeClient.checkNode();

            Assert.assertTrue(success);
        } catch (IOException ex) {
            Assert.fail("No exception should have been thrown");
        }
    }

任何想法為什么我得到空響應？

Answer 1

我認為我的客戶端 clode 顯然很好，測試是錯誤的。 最初我是在嘲笑Response類，現在我改為監視它並使模擬返回Response.ok().build())的間諜，這解決了我的問題。

    @Test
    public void testCheckNode() throws Exception {
        response = Mockito.spy(Response.class);
        Mockito
            .doReturn(Mockito.spy(Response.ok().build()))
            .when(builder)
            .get(Response.class);

        NodeClient nodeClient;
        PowerMockito
            .doNothing()
            .when(nodeClient, "handleResponse", Mockito.any());

        try {
            boolean success = nodeClient.checkNode();

            Assert.assertTrue(success);
        } catch (IOException ex) {
            Assert.fail("No exception should have been thrown");
        }
    }