java - 未能执行目标 org.apache.maven.plugins:maven-jar-plugin:2.4:jar

Question

所以我试图继续.ear为现有maven项目创建一个文件，并进一步将其部署在WebLogic server. 同样，我继续创建WAR,JAR和EAR模块并按照以下步骤操作 -

Right clickon parent project，select new，select maven module，命名为projectnameJARModule然后完结了wizard。

为创建一个projectnameWARModule和一个projectnameEARModule模块做了相同的过程。制作完成后，我将WAR和JAR模块添加dependencies到EAR module. 此外，我继续在文件夹上安装maven modulesby并选择. 在此之后，我在控制台中收到以下错误（下面的完整控制台日志） -Right ClickingprojectnameWARModuleRun As - Maven Install

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

知道如何摆脱这个吗？非常感谢

以下pom.xml是Parent Module-

<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pom.xml是WAR Module-

    <?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pom.xml我的JAR模块 -

    <?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>

score 1 · Accepted Answer

让我澄清一下：该dependencyManagement部分为定义它的同一个 POM 和子/模块 Maven 项目提供依赖关系治理。但是，在该部分中声明依赖项dependencyManagement并不意味着 Maven 将使用它，这只是一个提示，以防 Maven 将使用它，以便如果该部分中缺少某个版本dependencies，Maven 将在该部分中查找它dependencyManagement。如果没有找到，则会产生一个错误（Maven 不知道要为某个依赖解决哪个版本）。

因此，最好有dependencyManagement治理部分，但它应该始终定义每个依赖项的版本，否则将错失良机并使您的构建更容易出错。

如果您需要所有声明的依赖项并且仅在同一个声明 POM 的范围内，那么您实际上可以完全避免有一个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，您正在使用dependenciesManagement父 POM 中的一个部分（我看到它有模块），然后您应该检查 jar 模块中是否声明了相同的依赖项（如果需要），否则在构建期间不会使用它。此外，您还应该检查是否dependenciesManagement在相关模块中声明了另一个部分，并在没有版本的情况下再次重新声明相同的依赖项。

可以通过以下方式提供一些额外的帮助：

-e -X使用标志运行 Maven 构建
跑步mvn dependency:tree -Dincludes=<concerned_group_id_here>
最后一个更改选项，运行你的构建mvn dependency:purge-local-repository clean install，它可以在缓存损坏的情况下工作（虽然错误应该不同）

java - 未能执行目标 org.apache.maven.plugins:maven-jar-plugin:2.4:jar

1 回答 1

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