Java Maven：JAR 将为空 - 没有内容被标记为包含
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Maven: JAR will be empty - no content was marked for inclusion
提问by webguy
I have a minor problem with maven. When I run the command mvn package I get the following warning:
我对 maven 有一个小问题。当我运行命令 mvn package 时，我收到以下警告：
[WARNING] JAR will be empty - no content was marked for inclusion!
[警告] JAR 将为空 - 没有内容被标记为包含！
The build is successful but the produced jar-file is empty as the warning says.
构建成功，但生成的 jar 文件如警告所示为空。
Why is this and what am I doing wrong?
为什么会这样，我做错了什么？
Here is my pom.xml
这是我的 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>framework</groupId>
<artifactId>framework</artifactId>
<version>1.0</version>
<packaging>jar</packaging>
<name>framework</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
My dependencies
</dependencies>
<build>
<directory>target</directory>
<outputDirectory>target/classes</outputDirectory>
<finalName>${project.artifactId}-${project.version}</finalName>
<testOutputDirectory>target/test-classes</testOutputDirectory>
<sourceDirectory>src</sourceDirectory>
<scriptSourceDirectory>src</scriptSourceDirectory>
<testSourceDirectory>src</testSourceDirectory>
<testResources>
<testResource>
<directory>test</directory>
</testResource>
</testResources>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<includes>
<include>src</include>
</includes>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.4</version>
<configuration>
<outputDirectory>lib</outputDirectory>
</configuration>
</plugin>
</plugins>
</build>
采纳答案by Robert Scholte
I hope you have good reason notto follow the standard directory layout, otherwise consider to rearrange the folders: it will make your life a lot easier (as well as for your co-workers). My guess is that nothing has been compiled. In that case: removing the configuration of the maven-compiler-plugin should be enough.
我希望您有充分的理由不遵循标准目录布局，否则请考虑重新排列文件夹：这将使您的生活更轻松（以及您的同事）。我的猜测是什么都没有编译。在这种情况下：删除 maven-compiler-plugin 的配置就足够了。
回答by kinjelom
Please try this one:
请试试这个：
<build>
<finalName>${project.artifactId}-${project.version}</finalName>
<sourceDirectory>src</sourceDirectory>
<testSourceDirectory>test</testSourceDirectory>
<resources>
<resource>
<directory>src</directory>
<excludes>
<exclude>**/*.java</exclude>
</excludes>
</resource>
</resources>
<testResources>
<testResource>
<directory>test</directory>
<excludes>
<exclude>**/*.java</exclude>
</excludes>
</testResource>
</testResources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven-compiler-plugin.version}</version>
<configuration>
<source>${maven.compiler.source}</source>
<target>${maven.compiler.target}</target>
</configuration>
</plugin>
</plugins>
</build>
If you want to convert an existing Eclipse Java Projectjust right click on Java Projectand click Configure/Convert to Maven Project.
如果要转换现有的，Eclipse Java Project只需右键单击Java Project并单击Configure/ Convert to Maven Project。
