我正在嘗試為我的服務(wù)編寫(xiě)一個(gè)測(cè)試，該測(cè)試與另一個(gè)從數(shù)據(jù)庫(kù)返回項(xiàng)目的服務(wù)建立連接。我的問(wèn)題是我在測(cè)試中設(shè)置了連接屬性并啟動(dòng)了服務(wù)。這怎么可能是模擬或類(lèi)似的？我的啟動(dòng)服務(wù)方法：public void doStartService() {        super.doStartService();        PoolingHttpClientConnectionManager manager = new PoolingHttpClientConnectionManager();        manager.setDefaultMaxPerRoute(maxConnectionsPerRoute);        manager.setMaxTotal(maxConnections);        RequestConfig requestConfig = RequestConfig.custom()                .setConnectTimeout(connectTimeout)                .setSocketTimeout(socketTimeout)                .setRedirectsEnabled(false).build();        HttpClientBuilder builder = HttpClientBuilder.create();        builder.setDefaultRequestConfig(requestConfig);        builder.setConnectionManager(manager);        client = builder.build();    }我的設(shè)置測(cè)試方法和一種測(cè)試方法：private ProductCatalogIntegrationService service; @Before    public void setup() {        service = new Service();        service.setConnectTimeout(10000);        service.setSocketTimeout(10000);        service.setMaxConnections(10);        service.setMaxConnectionsPerRoute(10);        service.setUrl("http://localhost:8888/products");        service.doStartService();    }    @Test    public void testReturnProductById() {        service.setProductById(GET_PRODUCT_BY_ID); // set url from get product by id, by this url my other service goes to the database        jsonItem = service.getProductById("1"); //get product by id 1        assertEquals(jsonItem.getId(), FIRST_PRODUCT_ID); // I compare the id on which I made the request to the database, so that I came and was wrapped in a class wrapper    }如何正確執(zhí)行，以免在測(cè)試中配置連接？