测试Spring MVC时Location标头中缺少端口

Question

我的控制器带有方法：

@PostMapping
@ResponseBody
public ResponseEntity<?> addPrivilege(@RequestBody PrivilegeDTO privilegeDTO)
{
    Privilege result = privilegeRepository.save(new Privilege(0L, privilegeDTO.getName(), new HashSet<>()));
    URI location = ServletUriComponentsBuilder
        .fromCurrentRequest()
        .path("/{id}")
        .buildAndExpand(result.getId())
        .toUri();
    log.info(location.toString());

    return ResponseEntity.created(location).build();
}

这是测试

def "AddPrivilege"()
{
    given:
    Map request = [id  : 0,
                   name: "test_privilege"]

    URL urlLocation = new URL("http://localhost:8080/api/privileges/0")
    privilegeRepository.save(_) >> privilege
    PrivilegeController privilegeController = new PrivilegeController(privilegeRepository)
    mvc = MockMvcBuilders.standaloneSetup(privilegeController).build();


    when:
    def results = mvc.perform(
        MockMvcRequestBuilders
            .post("/api/privileges")
            .contentType(MediaType.APPLICATION_JSON)
            .content(toJson(request))
    )

    then:
    results.andExpect(status().isCreated())
    results.andExpect(header().string("Location", urlLocation.toString()))
}

运行测试时，响应中的“ Location”标头等于“ http://localhost/api/privileges/0”，但是当我使用Postman发送请求时，它是“ http://localhost:8080/api/privileges/0”。

我不明白为什么会有这样的差异。我可以以某种方式强制弹簧测试返回带有端口的URI吗？