带有 spring-boot-maven 插件的 Spring Boot - 运行集成测试后无法重新启动应用程序服务器

Question

我有一个 Spring Boot 应用程序，并且该应用程序具有集成测试。

这是我的 pom.xml 中用于运行集成测试的相关 sn-p。

<plugin>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-maven-plugin</artifactId>
    <configuration>
      <mainClass>com.xyz.Application</mainClass>
      <executable>true</executable>
      <fork>true</fork>
      <jmxPort>7654</jmxPort>
    </configuration>
    <executions>
      <execution>
        <id>pre-integration-test</id>
        <goals>
          <goal>start</goal>
        </goals>
        <configuration>
          <fork>true</fork>
          <jmxPort>7654</jmxPort>
        </configuration>
      </execution>
      <execution>
        <id>post-integration-test</id>
        <goals>
          <goal>stop</goal>
        </goals>
        <configuration>
          <fork>true</fork>
          <jmxPort>7654</jmxPort>
        </configuration>
      </execution>
    </executions>
  </plugin>

当我运行mvn verify 时，我看到单元测试首先运行。然后应用服务器启动并且集成测试成功运行。 mvn 进程成功退出。

我还在控制台日志中看到以下内容，这让我相信应用程序服务器正在正确关闭 -

[INFO] --- spring-boot-maven-plugin:2.1.1.RELEASE:stop (post-integration-test) @ application ---
[DEBUG] Configuring mojo org.springframework.boot:spring-boot-maven-plugin:2.1.1.RELEASE:stop from plugin realm ClassRealm[plugin>org.springframework.boot:spring-boot-maven-plugin:2.1.1.RELEASE, parent: sun.misc.Launcher$AppClassLoader@42a57993]
[DEBUG] Configuring mojo 'org.springframework.boot:spring-boot-maven-plugin:2.1.1.RELEASE:stop' with basic configurator -->
[DEBUG]   (f) fork = true
[DEBUG]   (f) jmxPort = 7654
[DEBUG]   (f) project = MavenProject: com.xyz:application:1.0-SNAPSHOT @ /Users/me/code/my-project/pom.xml
[DEBUG]   (f) skip = false
[DEBUG] -- end configuration --
[INFO] Stopping application...
2019-01-07 14:18:18.375  INFO [-,,,] 38653 --- [on(4)-127.0.0.1] inMXBeanRegistrar$SpringApplicationAdmin : Application shutdown requested.
2019-01-07 14:18:18.375  INFO [-,,,] 38653 --- [on(4)-127.0.0.1] ConfigServletWebServerApplicationContext : Closing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@449465bf: startup date [Mon Jan 07 14:17:22 EST 2019]; parent: org.springframework.context.annotation.AnnotationConfigApplicationContext@475a6eb6
2019-01-07 14:18:18.376  INFO [-,,,] 38653 --- [on(4)-127.0.0.1] ConfigServletWebServerApplicationContext : Closing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@4cf0901e: startup date [Mon Jan 07 14:17:30 EST 2019]; parent: org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@449465bf
2019-01-07 14:18:18.385  INFO [-,,,] 38653 --- [on(4)-127.0.0.1] o.e.jetty.server.AbstractConnector       : Stopped ServerConnector@e45db77{HTTP/1.1,[http/1.1]}{0.0.0.0:8081}
2019-01-07 14:18:18.385  INFO [-,,,] 38653 --- [on(4)-127.0.0.1] org.eclipse.jetty.server.session         : node0 Stopped scavenging
2019-01-07 14:18:18.387  INFO [-,,,] 38653 --- [on(4)-127.0.0.1] o.e.j.s.h.ContextHandler.application     : Destroying Spring FrameworkServlet 'dispatcherServlet'
2019-01-07 14:18:18.388  INFO [-,,,] 38653 --- [on(4)-127.0.0.1] o.e.jetty.server.handler.ContextHandler  : Stopped o.s.b.w.e.j.JettyEmbeddedWebAppContext@16b7a081{application,/,[file:///private/var/folders/sc/d2x30b2j6jj5hpvfkqx9p31n5jmbmc/T/jetty-docbase.6078950105283659171.8081/, jar:file:/Users/me/.m2/repository/io/springfox/springfox-swagger-ui/2.9.2/springfox-swagger-ui-2.9.2.jar!/META-INF/resources],UNAVAILABLE}
2019-01-07 14:18:18.390  INFO [-,,,] 38653 --- [on(4)-127.0.0.1] o.s.c.support.DefaultLifecycleProcessor  : Stopping beans in phase 2147483647
2019-01-07 14:18:18.393  INFO [-,,,] 38653 --- [on(4)-127.0.0.1] o.s.j.e.a.AnnotationMBeanExporter        : Unregistering JMX-exposed beans on shutdown
2019-01-07 14:18:18.393  INFO [-,,,] 38653 --- [on(4)-127.0.0.1] o.s.j.e.a.AnnotationMBeanExporter        : Unregistering JMX-exposed beans
2019-01-07 14:18:18.403  INFO [-,,,] 38653 --- [on(4)-127.0.0.1] s.c.a.AnnotationConfigApplicationContext : Closing FeignContext-cse-service: startup date [Mon Jan 07 14:17:27 EST 2019]; parent: org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@449465bf
...
2019-01-07 14:18:18.472  WARN [-,,,] 38653 --- [pool-1-thread-5] c.n.c.sources.URLConfigurationSource     : No URLs will be polled as dynamic configuration sources.
2019-01-07 14:18:18.472  INFO [-,,,] 38653 --- [pool-1-thread-5] c.n.c.sources.URLConfigurationSource     : To enable URLs as dynamic configuration sources, define System property archaius.configurationSource.additionalUrls or make config.properties available on classpath.
2019-01-07 14:18:18.473  INFO [-,,,] 38653 --- [pool-1-thread-5] c.netflix.config.DynamicPropertyFactory  : DynamicPropertyFactory is initialized with configuration sources: com.netflix.config.ConcurrentCompositeConfiguration@139bf1b8
...
2019-01-07 14:18:18.628  INFO [-,,,] 38653 --- [on(4)-127.0.0.1] o.e.jetty.server.AbstractConnector       : Stopped ServerConnector@678b05be{HTTP/1.1,[http/1.1]}{0.0.0.0:8080}
2019-01-07 14:18:18.628  INFO [-,,,] 38653 --- [on(4)-127.0.0.1] org.eclipse.jetty.server.session         : node0 Stopped scavenging
2019-01-07 14:18:18.629  INFO [-,,,] 38653 --- [on(4)-127.0.0.1] o.e.j.s.h.ContextHandler.application     : Destroying Spring FrameworkServlet 'dispatcherServlet'
2019-01-07 14:18:18.629  INFO [-,,,] 38653 --- [on(4)-127.0.0.1] o.e.jetty.server.handler.ContextHandler  : Stopped o.s.b.w.e.j.JettyEmbeddedWebAppContext@4808c18e{application,/api/v1,[file:///private/var/folders/sc/d2x30b2j6jj5hpvfkqx9p31n5jmbmc/T/jetty-docbase.6019952027552218513.8080/, jar:file:/Users/me/.m2/repository/io/springfox/springfox-swagger-ui/2.9.2/springfox-swagger-ui-2.9.2.jar!/META-INF/resources],UNAVAILABLE}

随后，当我再次运行mvn verify 时，我得到以下绑定异常。

[DEBUG] Application argument(s): 
[DEBUG] Connecting to local MBeanServer at port 7654
[DEBUG] Waiting for spring application to start...
[DEBUG] Connected to local MBeanServer at port 7654
[DEBUG] Waiting for spring application to start...
[DEBUG] Spring application is not ready yet, waiting 500ms (attempt 1)
Error: Exception thrown by the agent : java.rmi.server.ExportException: Port already in use: 7654; nested exception is: 
        java.net.BindException: Address already in use (Bind failed)

使用netstat 和ps 我可以确定有一些进程仍在占用端口7654，jps 告诉我是这个进程 -

47148 Application -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=7654 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=127.0.0.1 

我不知道如何让 JMX 进程关闭。我认为spring-boot-maven 插件可以做到这一点。而事实似乎并非如此。

我做错了什么，有人可以帮忙吗？非常感谢您花时间研究这个（潜在的）问题。

Answer 1

我遇到了同样的问题，在终止 JMX 进程之前无法重新运行测试。其次，我的 Azure DevOps 管道因为 JMX 进程没有停止而挂起。

The STDIO streams did not close within 10 seconds of the exit event from process '/usr/share/apache-maven-3.6.3/bin/mvn'. This may indicate a child process inherited the STDIO streams and has not yet exited.

当我浏览源代码：https://github.com/spring-projects/spring-boot/blob/master/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/main/java/org/springframework/boot/maven/StartMojo.java#L128时，我发现如果我不 fork maven 进程，JMX 代理将无法启动。

我不确定这是否适用于你，但我本身不需要分叉，也不需要 JMX 指标，所以这为我解决了这个问题：

<configuration>
  <fork>false</fork>
</configuration>

我还尝试通过在插件配置中指定 jmx 参数 (-Dcom.sun.management.jmxremote) 来覆盖它们，但由于参数被添加（硬编码）作为最终参数，这对我不起作用.