问如何编写Post、Get、Put、Delete方法

EN

@BeforeEach:

DeploymentOptions options = new DeploymentOptions()
            .setConfig(new JsonObject().put("http.port", port));
    vertx.deployVerticle(new HttpVerticle(configuration, vertx, operations), options, context.completing());

@Test
public void testAddNewCountry(Vertx vertx, VertxTestContext context) {
    System.out.println(port);

    final String json = Json.encodePrettily(new Country("مالزی", true));
    final String length = Integer.toString(json.length());
    vertx.createHttpClient().post(port, "localhost", AllRoutes.COUNTRY)
            .putHeader("content-type", "application/json")
            .putHeader("content-length", length)
            .handler(response -> {
                response.bodyHandler(body -> {
                    response.statusCode();
                    context.completeNow();
                });
            })
            .write(json)
            .end();
}