当 management.port=0 时在运行时获取 Spring 引导管理端口

Question

我正在寻找有关如何在将 management.port 属性设置为 [=19] 时获取分配给为执行器端点服务的嵌入式 tomcat 的端口的建议=] 在集成测试中。

我正在使用 Spring Boot 1.3.2，配置如下 application.yml：

server.port: 8080
server.contextPath: /my-app-context-path

management.port: 8081
management.context-path: /manage

...

然后我的集成测试用 @WebIntegrationTest 注释，将上面显示的端口设置为 0

@WebIntegrationTest({ "server.port=0", "management.port=0" })

和以下实用程序 class 应该用于在进行完整集成测试时访问应用程序配置：

@Component
@Profile("testing")
class TestserverInfo {

    @Value( '${server.contextPath:}' )
    private String contextPath;

    @Autowired
    private EmbeddedWebApplicationContext server;

    @Autowired
    private ManagementServerProperties managementServerProperties


    public String getBasePath() {
        final int serverPort = server.embeddedServletContainer.port

        return "http://localhost:${serverPort}${contextPath}"
    }

    public String getManagementPath() {
        // The following wont work here:
        // server.embeddedServletContainer.port -> regular server port
        // management.port -> is zero just as server.port as i want random ports

        final int managementPort = // how can i get this one ?
        final String managementPath = managementServerProperties.getContextPath()

        return "http://localhost:${managementPort}${managementPath}"
    }
}

我已经知道可以使用 local.server.port 获取标准端口，而且管理端点似乎有一些等效项 local.management.port。不过那个好像意思不一样

编辑：官方文档没有提到这样做的方法：(http://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#howto-discover-the-http-port-at-runtime)

目前是否有任何未记录的方法来使用该管理端口？

解决方案编辑：

因为我使用 Spock-Framework 和 Spock-Spring 来测试我的 spring-boot 应用程序，我必须使用以下方法初始化应用程序：

@ContextConfiguration(loader = SpringApplicationContextLoader.class, classes = MyApplication.class)

Spock-Spring 或测试初始化似乎影响了对 @Value 注释的评估，因此 @Value("${local.management.port}") 导致

java.lang.IllegalArgumentException: Could not resolve placeholder 'local.management.port' in string value "${local.management.port}"

通过你的解决方案，我知道属性存在，所以我直接使用 spring Environment 在测试运行时检索属性值：

@Autowired
ManagementServerProperties managementServerProperties

@Autowired
Environment environment

public String getManagementPath() {
    final int managementPort = environment.getProperty('local.management.port', Integer.class)
    final String managementPath = managementServerProperties.getContextPath()

    return "http://localhost:${managementPort}${managementPath}"
}

Answer 1

我就是这样做的，直接从我的测试中复制 class（我使用 RestAssured 作为断言）：

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.test.SpringApplicationConfiguration;
import org.springframework.boot.test.WebIntegrationTest;

import org.springframework.test.annotation.DirtiesContext;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import static com.jayway.restassured.RestAssured.get;
import static org.hamcrest.CoreMatchers.equalTo;

@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(Application.class)
@WebIntegrationTest(randomPort = true, value = {"management.port=0", "management.context-path=/admin"})
@DirtiesContext
public class ActuatorEndpointTest {

    @Value("${local.management.port}")
    private int localManagementPort;

    @Test
    public void actuatorHealthEndpointIsAvailable() throws Exception {

        String healthUrl = "http://localhost:" + localManagementPort + "/admin/health";
        get(healthUrl)
                .then()
                .assertThat().body("status", equalTo("UP"));
    }



}

Answer 2

需要通过 @SpringBootTest 的属性字段将管理端口设置为 0，然后在测试中使用 @LocalServerPort and/or @LocalManagementPort 注释获取端口.

示例：

来自 Spring 启动 2.0.0:
properties = {"management.server.port=0"}

@ExtendWith(SpringExtension.class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT, properties = {
        "management.server.port=0" })
public class HealthCheckIT {

    @Autowired
    private WebTestClient webTestClient;

    @LocalManagementPort
    int managementPort;

    @Test
    public void testManagementPort() {
        webTestClient
                .get().uri("http://localhost:" + managementPort + "/actuator/health")
                .header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE)
                .accept(MediaType.APPLICATION_JSON)
                .exchange()
                .expectStatus().isOk();
    }
}

旧版本：[1.4.0 - 1.5.x]:
properties = {"management.port=0"}

@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT, properties = {
    "management.port=0", "management.context-path=/admin" })
public class SampleTest {

    @LocalServerPort
    int port;

    @LocalManagementPort
    int managementPort;

Answer 3

这是对@magiccrafter 回答的更新，需要以下内容才能正常工作

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-webflux</artifactId>
    <scope>test</scope>
</dependency>

它也需要这个注解

@AutoConfigureWebTestClient

当 management.port=0 时在运行时获取 Spring 引导管理端口

Get Spring Boot management port at runtime when management.port=0

spring

spock

spring-boot

spring-boot-actuator

解决方案编辑：