为什么我不能关闭从maven插件嵌入的tomcat 7？

时间：2014-04-01 08:53:22

标签： windows java-7 maven-tomcat-plugin

我正在使用tomcat7-maven-plugin 2.2从命令行运行webapp（我在Windows 8.1，Java 1.7.0_51和Maven 3.2.1上）。

这是配置（非常简单，我猜）：

<plugin>
    <groupId>org.apache.tomcat.maven</groupId>
    <artifactId>tomcat7-maven-plugin</artifactId>
    <version>2.2</version>

    <configuration>
        <address>localhost</address>
        <port>8080</port>
        <path>/</path>
        <uriEncoding>UTF-8</uriEncoding>
    </configuration>
</plugin>

我使用mvn tomcat7:run运行Maven，它正确启动，服务器启动，webapp加载，我可以与之交互。
我运行Maven的命令提示符正忙于显示Tomcat输出（这对我来说很好）：

[INFO] Scanning for projects...
[INFO]
[INFO] Using the builder org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder with a thread count of 1
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building <project-name-here> 0.3
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] >>> tomcat7-maven-plugin:2.2:run (default-cli) @ <project-name-here> >>>
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ <project-name-here> ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 25 resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ <project-name-here> ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] <<< tomcat7-maven-plugin:2.2:run (default-cli) @ <project-name-here> <<<
[INFO]
[INFO] --- tomcat7-maven-plugin:2.2:run (default-cli) @ <project-name-here> ---
[INFO] Running war on http://localhost:8080/
[INFO] Using existing Tomcat server configuration at c:\workspace\<project-name-here>\target\tomcat
[INFO] create webapp with contextPath:
apr 01, 2014 10:39:50 AM org.apache.coyote.AbstractProtocol init
Informazioni: Initializing ProtocolHandler ["http-bio-127.0.0.1-8080"]
apr 01, 2014 10:39:50 AM org.apache.catalina.core.StandardService startInternal
Informazioni: Starting service Tomcat
apr 01, 2014 10:39:50 AM org.apache.catalina.core.StandardEngine startInternal
Informazioni: Starting Servlet Engine: Apache Tomcat/7.0.47
apr 01, 2014 10:39:52 AM org.apache.coyote.AbstractProtocol start
Informazioni: Starting ProtocolHandler ["http-bio-127.0.0.1-8080"]

然后，我想关闭服务器：我从一个单独的命令提示符运行mvn tomcat7:shutdown，但我得到的是：

[INFO] Scanning for projects...
[INFO]
[INFO] Using the builder org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder with a thread count of 1
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building <project-name-here> 0.3
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- tomcat7-maven-plugin:2.2:shutdown (default-cli) @ <project-name-here> ---
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.083 s
[INFO] Finished at: 2014-04-01T10:39:59+01:00
[INFO] Final Memory: 9M/154M
[INFO] ------------------------------------------------------------------------
"cmd" non è riconosciuto come comando interno o esterno,
 un programma eseguibile o un file batch.

最后一行是：

  

“cmd”不是可识别的内部或外部命令，也不是可执行文件   或批处理文件。

我可以阻止Tomcat从第一个命令提示符命中Ctrl+C，但由于我需要传递所有其他命令，我想为他们提供一个脚本来启动webapp和一个脚本来阻止它。 / p>

怎么了？这是一个插件错误吗？这是我配置错误吗？

修改

如果我将<fork>true</fork>添加到POM，则服务器会因此错误而崩溃：

[...]
Informazioni: Starting service Tomcat
apr 03, 2014 2:05:29 PM org.apache.catalina.core.StandardEngine startInternal
Informazioni: Starting Servlet Engine: Apache Tomcat/7.0.47
apr 03, 2014 2:05:31 PM org.apache.coyote.AbstractProtocol start
Informazioni: Starting ProtocolHandler ["http-bio-127.0.0.1-8080"]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 5.711 s
[INFO] Finished at: 2014-04-03T14:05:31+01:00
[INFO] Final Memory: 26M/368M
[INFO] ------------------------------------------------------------------------
ERROR: IllegalAccessException for stop method in class org.apache.tomcat.maven.plugin.tomcat7.run.ExtendedTomcat
java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.apache.tomcat.maven.common.run.EmbeddedRegistry.shutdownAll(EmbeddedRegistry.java:110)
        at org.apache.tomcat.maven.common.run.EmbeddedRegistry$1.run(EmbeddedRegistry.java:69)
Caused by: org.apache.catalina.LifecycleException: Failed to stop component [StandardServer[-1]]
        at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:236)
        at org.apache.catalina.startup.Tomcat.stop(Tomcat.java:351)
        ... 6 more
Caused by: org.apache.catalina.LifecycleException: Failed to stop component [StandardService[Tomcat]]
        at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:236)
        at org.apache.catalina.core.StandardServer.stopInternal(StandardServer.java:753)
        at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)
        ... 7 more
Caused by: org.apache.catalina.LifecycleException: Failed to stop component [StandardEngine[Tomcat]]
        at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:236)
        at org.apache.catalina.core.StandardService.stopInternal(StandardService.java:502)
        at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)
        ... 9 more
Caused by: java.lang.NoClassDefFoundError: org/apache/catalina/core/ContainerBase$StopChild
        at org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:1173)
        at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)
        ... 11 more
Caused by: java.lang.ClassNotFoundException: org.apache.catalina.core.ContainerBase$StopChild
        at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
        at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:259)
        at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:235)
        at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:227)
        ... 13 more

3 个答案:

答案 0 :(得分：5)

据我所知，在使用Ctrl + c启动 Tomcat 服务器后需要使用mvn tomcat7:run将其关闭，因为它已连接到当前 Maven 跑。

关闭目标用于在以下情况后调用执行一些测试（集成测试）以干净的方式完成所有工作。

答案 1 :(得分：1)

查看fork选项http://tomcat.apache.org/maven-plugin-2.2/tomcat7-maven-plugin/run-mojo.html#fork

因此使用此选项，您可以启动嵌入式tomcat运行某些测试然后关闭。

HTH

答案 2 :(得分：0)

另一种方法是，如果Tomcat maven插件有办法启用关闭端口（默认为8005），那么您只需发送默认关闭字符串（默认为“shutdown”）即可将其关闭。

使用JMX客户端，当我运行插件运行目标时，关闭端口设置为-1。

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