Maven学习笔记008——Maven遇到的问题汇总

最后编辑：２０１４－１２－２２　１４：０7

问题1：CMD下载依赖包很慢，或者下载不下来。

解决办法：1.想办法手动去下载这些jar，放到本地仓库的相应位置，比如jar的包结构是org.codehaus.groovy.groovy-1.8.3.jar，那么groovy-1.8.3.jar存放的位置就是C:\Users\~\.m2\repository\ org\codehaus\groovy\groovy\1.8.3

2.论坛有前辈提议翻墙后，让Maven自动下载这些依赖

 

问题2：Maven创建Web项目时，提示The goal you specified requires a project to execute butthere is no POM in this directory…

源命令：

mvn archetype:create -DgroupId=com.charlie.archetype.webpro -DartifactId=mvn-webapp -DarchetypeArtifactId=maven-archetype-webapp

解决办法：报这个错居然因为-DartifactId= mvn-webapp等号前有一个空格，去掉就行。

问题3：运行mvnjetty run时，报错： No plugin foundfor prefix 'jetty' in the current project and in the plugin groups

解决办法一：在maven的setting.xml的节点 <pluginGroups>下配置子节点

 <pluginGroup>org.mortbay.jetty</pluginGroup> 

 

解决办法二：在对应项目的pom.xml中<build>-><plugins>的节点下添加配置：

         <plugin>

                   <groupId>org.mortbay.jetty</groupId>

                   <artifactId>jetty-maven-plugin</artifactId>

                   <configuration>

                            <webApp>

                                     <contextPath>/</contextPath>

                            </webApp>

                            <stopKey>webx</stopKey>

                            <stopPort>9999</stopPort>

                            <connectors>

                                     <connector implementation="org.eclipse.jetty.server.nio.SelectChannelConnector">

                                               <port>8080</port>

                                               <maxIdleTime>60000</maxIdleTime>

                                     </connector>

                            </connectors>

                            <requestLog implementation="org.eclipse.jetty.server.NCSARequestLog">

                                     <filename>target/access.log</filename>

                                     <retainDays>90</retainDays>

                                     <append>false</append>

                                     <extended>false</extended>

                                     <logTimeZone>GMT+8:00</logTimeZone>

                            </requestLog>

                            <systemProperties>

                                     <systemProperty>

                                               <name>productionMode</name>

                                               <value>${productionMode}</value>

                                     </systemProperty>

                            </systemProperties>

                   </configuration>

         </plugin>

 

问题4：[WARNING]'build.plugins.plugin.version' fororg.mortbay.jetty:maven-jetty-plugin is missing.

解决办法：该warning是因为Maven对于pom.xml语法检查严格导致的，给上面两个出现warning的plugin加上version就能解决，具体怎么得到version信息，请使用如下命令：

mvn help:describe -DartifactId=maven-jetty-plugin -DgroupId=org.mortbay.jetty

以下是给maven-jetty-plugin增加version的事例:

<groupId>org.mortbay.jetty</groupId>
        <artifactId>maven-jetty-plugin</artifactId>
        <version>6.1.26</version>

      …