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[英]“Failed to execute goal org.apache.maven.plugins:maven-jar-plugin:2.4:jar (default-jar)” why?
[英]Failed to execute goal org.apache.maven.plugins:maven-jar-plugin:2.4:jar
因此,我试图继续为现有的maven
项目创建.ear
文件,然后将其进一步部署在WebLogic server
。 同样,我继续创建WAR
, JAR
和EAR
模块,并按照以下步骤进行操作-
Right click
parent project
,选择new
,选择maven module
,将其命名为projectnameJARModule
,然后完成wizard
。
创建项目名称projectnameWARModule
和项目名称projectnameEARModule
模块的过程相同。 制作完成后,我将WAR
和JAR
模块作为dependencies
到EAR module
。此外,我继续通过Right Clicking
projectnameWARModule
文件夹来安装maven modules
,然后选择Run As - Maven Install
。 基于此,我在控制台中收到以下错误(下面是完整的控制台日志)-
T E S T S
-------------------------------------------------------
Running org.CADJARModule.AppTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 sec
Results :
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
[INFO]
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ CADJARModule ---
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] projectname ............................................... SUCCESS [ 0.957 s]
[INFO] projectnameJARModule ...................................... FAILURE [ 33.425 s]
[INFO] projectnameWARModule Maven Webapp ......................... SKIPPED
[INFO] projectnameEARModule ...................................... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 34.806 s
[INFO] Finished at: 2015-12-01T18:16:20+05:30
[INFO] Final Memory: 9M/126M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-jar-plugin:2.4:jar (default-jar) on project projectnameJARModule: Error assembling JAR: For artifact {org.glassfish.jersey.containers:jersey-container-servlet-core:null:jar}: The version cannot be empty. -> [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
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR] mvn <goals> -rf :projectnameJARModule
知道我该如何摆脱吗? 非常感谢
以下是Parent Module
的pom.xml
<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>Project_name</groupId>
<artifactId>Project_name</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>pom</packaging>
<name>Project_name</name>
<build>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.5.1</version>
<inherited>true</inherited>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.4</version>
<configuration>
<warSourceDirectory>WebContent</warSourceDirectory>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
</plugins>
</build>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.glassfish.jersey</groupId>
<artifactId>jersey-bom</artifactId>
<version>${jersey.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.jaxrs</groupId>
<artifactId>jackson-jaxrs-json-provider</artifactId>
<version>2.6.0</version>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-web-api</artifactId>
<version>7.0</version> <!-- Put here the version of your Java EE app, in my case 7.0 -->
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet-core</artifactId>
<!-- use the following artifactId if you don't need servlet 2.x compatibility -->
<!-- artifactId>jersey-container-servlet</artifactId -->
</dependency>
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-moxy</artifactId>
</dependency>
</dependencies>
</dependencyManagement>
<properties>
<jersey.version>2.16</jersey.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<modules>
<module>Project_nameJARModule</module>
<module>Project_nameWARModule</module>
<module>Project_nameEARModule</module>
</modules>
</project>
以下是WAR Module
的pom.xml
<?xml version="1.0"?>
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>Projectname</groupId>
<artifactId>Projectname</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<groupId>ProjectnameWARModule</groupId>
<artifactId>ProjectnameWARModule</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>ProjectnameWARModule Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>ProjectnameWARModule</finalName>
</build>
</project>
以下是我的JAR
模块的pom.xml
<?xml version="1.0"?>
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>Project_Name</groupId>
<artifactId>Project_Name</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<groupId>CADJARModule</groupId>
<artifactId>CADJARModule</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>CADJARModule</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
让我澄清一下: dependencyManagement
部分为定义了该对象的同一个POM以及Maven项目的子代/模块提供依赖项治理。 但是,在dependencyManagement
部分中声明一个依赖项并不意味着Maven将使用它,它只是一个提示,以防万一Maven使用它,以便如果在dependencies
部分中缺少某个版本,Maven将在dependencyManagement
部分中查找它。 。 如果未找到,则将生成错误(Maven不知道要为某个依赖项解析哪个版本)。
因此,最好有用于管理的dependencyManagement
部分,但是它应该始终定义每个依赖项的版本,否则将是错失良机,并使您的构建更容易出错。
如果您需要所有已声明的依赖项,并且仅在相同的声明POM的范围内,那么实际上可以避免完全具有dependenciesManagement
部分,而只让您的dependencies
部分为每个声明的依赖项提供版本。
在这种情况下,您正在父POM中使用dependenciesManagement
部分(我看到它具有模块),然后应检查jar模块中是否声明了相同的依赖项(如果需要),否则在构建过程中将不使用它。 。 此外,您还应该检查是否在相关模块中声明了另一个dependenciesManagement
部分,并再次重新声明相同的依赖项,而没有版本。
可以通过以下方式提供一些其他帮助:
-e -X
标志运行您的Maven构建 mvn dependency:tree -Dincludes=<concerned_group_id_here>
mvn dependency:purge-local-repository clean install
项的形式运行您的构建mvn dependency:purge-local-repository clean install
,它可以在缓存损坏的情况下工作(但错误应该有所不同)
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