mvn使用jetty插件报错

l低语 2017-07-12 09:06:12
我新建了一个maven-archetype-webapp项目，在运行jetty:run时报错。
这是项目信息



<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

	<modelVersion>4.0.0</modelVersion>

	<groupId>com.imooc.mvnWebdemo</groupId>

	<artifactId>mvnWebdemo</artifactId>

	<packaging>war</packaging>

	<version>0.0.1-SNAPSHOT</version>

	<name>mvnWebdemo Maven Webapp</name>

	<url>http://maven.apache.org</url>



	<dependencies>

		<dependency>

			<groupId>junit</groupId>

			<artifactId>junit</artifactId>

			<version>4.10</version>

			<scope>test</scope>

		</dependency>



		<dependency>

			<groupId>javax.servlet</groupId>

			<artifactId>javax.servlet-api</artifactId>

			<version>3.1.0</version>

			<scope>provided</scope>

		</dependency>

	</dependencies>



	<build>

		<finalName>mvnWebdemo</finalName>

		<plugins>

			<plugin>

				<groupId>org.eclipse.jetty</groupId>

				<artifactId>jetty-server</artifactId>

				<version>7.6.21.v20160908</version>

				<configuration>

					<scanIntervalSeconds>5</scanIntervalSeconds>

					<webApp>

						<contextPath>/test</contextPath>

					</webApp>

				</configuration>

			</plugin>

		</plugins>

	</build>

</project>

这是错误信息


[INFO] Scanning for projects...

[WARNING] Failed to retrieve plugin descriptor for org.eclipse.jetty:jetty-server:7.6.21.v20160908: Failed to parse plugin descriptor for org.eclipse.jetty:jetty-server:7.6.21.v20160908 (D:\Apache\apache-maven_local\repo\org\eclipse\jetty\jetty-server\7.6.21.v20160908\jetty-server-7.6.21.v20160908.jar): No plugin descriptor found at META-INF/maven/plugin.xml

[INFO] Downloading: https://repo.maven.apache.org/maven2/org/codehaus/mojo/maven-metadata.xml

[INFO] Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-metadata.xml

[INFO] Downloaded: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-metadata.xml (13 kB at 6.9 kB/s)

[INFO] Downloaded: https://repo.maven.apache.org/maven2/org/codehaus/mojo/maven-metadata.xml (20 kB at 8.2 kB/s)

[INFO] ------------------------------------------------------------------------

[INFO] BUILD FAILURE

[INFO] ------------------------------------------------------------------------

[INFO] Total time: 3.165 s

[INFO] Finished at: 2017-07-12T08:54:14+08:00

[INFO] Final Memory: 12M/219M

[INFO] ------------------------------------------------------------------------

[ERROR] No plugin found for prefix 'jetty' in the current project and in the plugin groups [org.apache.maven.plugins, org.codehaus.mojo] available from the repositories [local (D:\Apache\apache-maven_local\repo), central (https://repo.maven.apache.org/maven2)] -> [Help 1]

[ERROR] 

[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.

[ERROR] Re-run Maven using the -X switch to enable full debug logging.

[ERROR] 

[ERROR] For more information about the errors and possible solutions, please read the following articles:

[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/NoPluginFoundForPrefixException


我在网上找了些方法，于是在配置文件settings.xml里加上了 <pluginGroup>org.eclipse.jetty</pluginGroup> 。

再次运行jetty:run报了另一个异常


[INFO] Scanning for projects...

[WARNING] Failed to retrieve plugin descriptor for org.eclipse.jetty:jetty-server:7.6.21.v20160908: Failed to parse plugin descriptor for org.eclipse.jetty:jetty-server:7.6.21.v20160908 (D:\Apache\apache-maven_local\repo\org\eclipse\jetty\jetty-server\7.6.21.v20160908\jetty-server-7.6.21.v20160908.jar): No plugin descriptor found at META-INF/maven/plugin.xml

[INFO] 

[INFO] ------------------------------------------------------------------------

[INFO] Building mvnWebdemo Maven Webapp 0.0.1-SNAPSHOT

[INFO] ------------------------------------------------------------------------

[WARNING] Failed to retrieve plugin descriptor for org.eclipse.jetty:jetty-server:7.6.21.v20160908: Failed to parse plugin descriptor for org.eclipse.jetty:jetty-server:7.6.21.v20160908 (D:\Apache\apache-maven_local\repo\org\eclipse\jetty\jetty-server\7.6.21.v20160908\jetty-server-7.6.21.v20160908.jar): No plugin descriptor found at META-INF/maven/plugin.xml

[INFO] 

[INFO] >>> jetty-maven-plugin:9.4.6.v20170531:run (default-cli) > test-compile @ mvnWebdemo >>>

[INFO] 

[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ mvnWebdemo ---

[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!

[INFO] Copying 0 resource

[INFO] 

[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ mvnWebdemo ---

[INFO] Nothing to compile - all classes are up to date

[INFO] 

[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ mvnWebdemo ---

[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!

[INFO] Copying 0 resource

[INFO] 

[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ mvnWebdemo ---

[INFO] Nothing to compile - all classes are up to date

[INFO] 

[INFO] <<< jetty-maven-plugin:9.4.6.v20170531:run (default-cli) < test-compile @ mvnWebdemo <<<

[INFO] 

[INFO] 

[INFO] --- jetty-maven-plugin:9.4.6.v20170531:run (default-cli) @ mvnWebdemo ---

[WARNING] Error injecting: org.eclipse.jetty.maven.plugin.JettyRunMojo

java.lang.TypeNotPresentException: Type org.eclipse.jetty.maven.plugin.JettyRunMojo not present

	at org.eclipse.sisu.space.URLClassSpace.loadClass(URLClassSpace.java:147)

	at org.eclipse.sisu.space.NamedClass.load(NamedClass.java:46)

	at org.eclipse.sisu.space.AbstractDeferredClass.get(AbstractDeferredClass.java:48)

	at com.google.inject.internal.ProviderInternalFactory.provision(ProviderInternalFactory.java:81)

	at com.google.inject.internal.InternalFactoryToInitializableAdapter.provision(InternalFactoryToInitializableAdapter.java:53)

	at com.google.inject.internal.ProviderInternalFactory$1.call(ProviderInternalFactory.java:65)

	at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:115)

	at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:133)

	at com.google.inject.internal.ProvisionListenerStackCallback.provision(ProvisionListenerStackCallback.java:68)

	at com.google.inject.internal.ProviderInternalFactory.circularGet(ProviderInternalFactory.java:63)

	at com.google.inject.internal.InternalFactoryToInitializableAdapter.get(InternalFactoryToInitializableAdapter.java:45)

	at com.google.inject.internal.InjectorImpl$2$1.call(InjectorImpl.java:1016)

	at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1092)

	at com.google.inject.internal.InjectorImpl$2.get(InjectorImpl.java:1012)

	at org.eclipse.sisu.inject.Guice4$1.get(Guice4.java:162)

	at org.eclipse.sisu.inject.LazyBeanEntry.getValue(LazyBeanEntry.java:81)

	at org.eclipse.sisu.plexus.LazyPlexusBean.getValue(LazyPlexusBean.java:51)

	at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:263)

	at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:255)

	at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getConfiguredMojo(DefaultMavenPluginManager.java:519)

	at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:121)

	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)

	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:154)

	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:146)

	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:117)

	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:81)

	at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)

	at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)

	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:309)

	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:194)

	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:107)

	at org.apache.maven.cli.MavenCli.execute(MavenCli.java:993)

	at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:345)

	at org.apache.maven.cli.MavenCli.main(MavenCli.java:191)

	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.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)

	at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)

	at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)

	at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)

我再次上网查这个异常，网上都是说jdk不支持这个版本的jetty。
可是我后来将项目的jdk切换到了1.8（图1可以看到），jetty从版本9更换到了版本7，依然是这个异常。
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不败的攻城狮 2017-07-13
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不败的攻城狮 2017-07-13
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既然用的maven为什么不在pom文件中配置jetty呢。你的那种方式没遇到过
不败的攻城狮 2017-07-13
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版本冲突问题吧。应该是。
l低语 2017-07-13
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顶。。。。。。。。。。
l低语 2017-07-13
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引用 4 楼 xishaohui 的回复:
既然用的maven为什么不在pom文件中配置jetty呢。你的那种方式没遇到过
你可以在图2里看到，我再pom.xml的build标签里使用了jetty。
l低语 2017-07-12
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后来我对异常有一些疑问：

为什么我pom.xml中写的是7.6.21.v20160908版本，程序run起来的却是--- jetty-maven-plugin:9.4.6.v20170531 ?
并且控制台显示Failed to retrieve plugin descriptor for org.eclipse.jetty:jetty-server:7.6.21.v20160908。
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[ERROR] No plugin found for prefix 'jetty' in the current project and in the plu gin groups [org.apache.maven.plugins, org.codehaus.mojo] available from the repo sitories [local (C:\Documents and Se
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