我们在Sping Boot 3.2.0中通过@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)和WebTestClient进行的集成测试失败，但有以下例外

org.springframework.web.reactive.function.client.WebClientRequestException:
Connection refused: no further information: /127.0.0.1:80

字符串
测试如下所示：

@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
public class TestClass {

    @Autowired
    protected WebTestClient webTestClient;

    @Test
    void testShiftLog() {

        // Given
        URI uri = UriComponentsBuilder.fromUri(URI.create(SHIFTLOG_ENDPOINT_URL))
                .build().toUri();

        ShiftLogItem body = generateSchichtbuchItem();

        // When, Then
        webTestClient.post().uri(uri)
                .body(Mono.just(body), ShiftLogItem.class)
                .header("Content-Type", "application/json")
                .exchange() // HERE THE EXCEPTION IS THROWN.
                .expectStatus().isCreated()
                .expectBody(Void.class);
    }
}

型
当我调试代码时，我可以看到WebTestClient对象配置正确，即随机端口。尽管如此，例外引用 localhost：80，这完全是奇怪的。有什么想法吗？