我在Maven中是一个全新的人,我正在教程中学习它。
在本教程中,我具有以下pom.xml配置文件:
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.denofprogramming</groupId>
<artifactId>maventutorial1</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>MavenTutorial1</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.5.5</version>
<configuration>
<descriptors>
<descriptor>jar-with-dependencies</descriptor>
</descriptors>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-math3</artifactId>
<version>3.2</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
您可以在此配置文件中看到,已声明使用assembly插件,本节:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.5.5</version>
<configuration>
<descriptors>
<descriptor>jar-with-dependencies</descriptor>
</descriptors>
</configuration>
</plugin>
作为descripor字段设置了值[[jar-with-dependencies),根据我的理解,该值必须创建一个新的目标jar文件,该文件还包含项目的delcared .jar依赖项。
因此,在Eclipse中,我选择了我的项目和Run as
---> Maven Build并在Goal输入部分中写了这个陈述:clean package assembly:single
必须清理我的项目的目标目录,创建程序包,然后在插件上调用single目标,该插件将jar依赖项放入我项目的最终jar目标文件中。问题是,通过这种方式,我在Eclipse控制台中获得了以下错误消息:assembly
.......................................................
.......................................................
.......................................................
Results :
Tests run: 2, Failures: 0, Errors: 0, Skipped: 0
[INFO]
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ maventutorial1 ---
[INFO] Building jar: /home/andrea/git/maven-java-console-application/mvntutorial1/target/maventutorial1-0.0.1-SNAPSHOT.jar
[INFO]
[INFO] --- maven-assembly-plugin:2.5.5:single (default-cli) @ maventutorial1 ---
[INFO] Reading assembly descriptor: jar-with-dependencies
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 3.767 s
[INFO] Finished at: 2015-07-20T15:12:19+01:00
[INFO] Final Memory: 19M/155M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-assembly-plugin:2.5.5:single (default-cli) on project maventutorial1: Error reading assemblies: Error locating assembly descriptor: jar-with-dependencies
[ERROR]
[ERROR] [1] [INFO] Searching for file location: /home/andrea/git/maven-java-console-application/mvntutorial1/jar-with-dependencies
[ERROR]
[ERROR] [2] [INFO] File: /home/andrea/git/maven-java-console-application/mvntutorial1/jar-with-dependencies does not exist.
[ERROR]
[ERROR] [3] [INFO] File: /home/andrea/git/maven-java-console-application/mvntutorial1/jar-with-dependencies does not exist.
[ERROR] -> [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/MojoExecutionException
似乎无法找到此文件:但是据我在教程中所了解的,这不是配置文件,而是特定的Maven值,它表示将所有.jar依赖项放入代表我打包项目的最终目标jar文件中。/ home / andrea / git / maven-java-console-application / mvntutorial1 / jar-with-dependencies
为什么会出现此错误?我想念什么?我该如何解决?
assembly
插件。将插件条目更改为此:<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<archive>
<manifest>
<mainClass>com.test.MainClassName</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
<executions>
<execution>
<id>make-assembly</id>
<phase>package</phase> <!-- packaging phase -->
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
然后您只需执行:clean install
。这将在target
目录中创建具有依赖项的jar。您可以参考以下链接中给出的示例:https://maven.apache.org/plugins/maven-assembly-plugin/examples/sharing-descriptors.html
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.16</version>
<configuration>
<testFailureIgnore>true</testFailureIgnore>
<suiteXmlFiles>
<suiteXmlFile>testng.xml</suiteXmlFile>
</suiteXmlFiles>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.2</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
我只能假设两件事:您可能没有正确设置其格式,或者您正在使用的Maven版本不支持您想要的操作。
- 您可能没有正确设置bash配置文件,并规定了maven目录的位置。另外,如果可能,请尝试通过apache网站上显示的终端/命令提示符设置Maven项目,并查看其是否有效。链接为:http://maven.apache.org/archetype/maven-archetype-plugin/examples/generate-batch.html
mvn -B archetype:generate \-DarchetypeGroupId=org.apache.maven.archetypes \-DgroupId=com.weather.mobile.ios.automation.tenday \-DartifactId=IphoneTenDayAutomation
groupID创建路径(像包一样思考),而artificatID是类的名称。