How to create maven uber jar which includes depend

问题:

<plugin>
    <artifactId>maven-assembly-plugin</artifactId>
    <executions>
      <execution>
        <phase>package</phase>
        <goals>
          <goal>single</goal>
        </goals>
      </execution>
    </executions>
    <configuration>
         <archive>
            <manifest>           
                <mainClass>com.XXXX.XXXXOfflineApp</mainClass>
            </manifest>
        </archive>
      <descriptorRefs>
        <descriptorRef>jar-with-dependencies</descriptorRef>
      </descriptorRefs>
    </configuration>
  </plugin>
</plugins>

I have the above code piece to create an jar with dependencies, but in my pom i also have some dependencies with scope provided but these are not included in the uber jar, Well I cannot change the scope of those dependencies because the regular jars build should not include them.Since those are provided by the container.

回答1:

The predefined jar-with-dependencies descriptor unpacks all dependencies needed at runtime into the root of the produced JAR. If you want to add provided dependencies, it is possible to build on it and add a specific <dependencySet> with <scope>provided</scope>.

<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.3" 
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.3 http://maven.apache.org/xsd/assembly-1.1.3.xsd">
  <id>jar-with-dependencies</id>
  <formats>
    <format>jar</format>
  </formats>
  <includeBaseDirectory>false</includeBaseDirectory>
  <dependencySets>
    <dependencySet>
      <outputDirectory>/</outputDirectory>
      <useProjectArtifact>true</useProjectArtifact>
      <unpack>true</unpack>
      <scope>provided</scope>
    </dependencySet>
    <dependencySet>
      <outputDirectory>/</outputDirectory>
      <useProjectArtifact>true</useProjectArtifact>
      <unpack>true</unpack>
      <scope>runtime</scope>
    </dependencySet>
  </dependencySets>
</assembly>

This will include all dependencies normally needed at runtime (so having a scope of compile and runtime) and all dependencies having the provided scope.

You would configure the use of this descriptor format with:

<plugin>
  <artifactId>maven-assembly-plugin</artifactId>
  <version>2.6</version>
  <executions>
    <execution>
      <id>id</id>
      <phase>package</phase>
      <goals>
        <goal>single</goal>
      </goals>
      <configuration>
        <archive>
          <manifest>
            <mainClass>com.XXXX.XXXXOfflineApp</mainClass>
          </manifest>
        </archive>
        <descriptors>
          <descriptor>path/to/assembly.xml</descriptor>
        </descriptors>
      </configuration>
    </execution>
  </executions>
</plugin>

where path/to/assembly.xml corresponds to the path to the above descriptor format, relative to the location of the POM.

回答2:

Try adding an assembly.xml file like this:

<assembly
    xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.3"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.3 http://maven.apache.org/xsd/assembly-1.1.3.xsd">
    <id>fat-tests</id>
    <formats>
        <format>jar</format>
    </formats>
    <includeBaseDirectory>false</includeBaseDirectory>
    <dependencySets>
        <dependencySet>
            <outputDirectory>/</outputDirectory>
            <useProjectArtifact>true</useProjectArtifact>
            <unpack>true</unpack>
            <scope>test</scope>
        </dependencySet>
    </dependencySets>
    <fileSets>
        <fileSet>
            <directory>${project.build.directory}/test-classes</directory>
            <outputDirectory>/</outputDirectory>
            <includes>
                <include>**/*.class</include>
            </includes>
            <useDefaultExcludes>true</useDefaultExcludes>
        </fileSet>
    </fileSets>
</assembly>

Adding any dependencySet you need for each scope.

You'll also need this in your pom.xml

    <plugin>
        <artifactId>maven-assembly-plugin</artifactId>
        <configuration>
            <descriptor>src/main/assembly/assembly.xml</descriptor>
        </configuration>

回答3:

I was also working on creating a distribution file, I did some thing like below assembly.xml

<assembly
    xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.3"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.3 http://maven.apache.org/xsd/assembly-1.1.3.xsd">
    <id>jar-with-dependencies</id>
    <formats>
        <format>jar</format>
    </formats>
    <includeBaseDirectory>false</includeBaseDirectory>
    <dependencySets>
        <dependencySet>
            <outputDirectory>/</outputDirectory>
            <useProjectArtifact>true</useProjectArtifact>
            <unpack>true</unpack>
            <scope>provided</scope>
        </dependencySet>
        <dependencySet>
            <outputDirectory>/</outputDirectory>
            <useProjectArtifact>true</useProjectArtifact>
            <unpack>true</unpack>
            <scope>runtime</scope>
        </dependencySet>
    </dependencySets>
</assembly>

---

distribution.xml

   <assembly
    xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.3"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.3 http://maven.apache.org/xsd/assembly-1.1.3.xsd">
    </assembly>
    <id>offline-distribution</id>
    <!-- Specifies that our binary distribution is a zip package -->
    <formats>
        <format>zip</format>
    </formats>
    <!-- Adds the dependencies of our application to the lib directory -->
    <dependencySets>

        <dependencySet>
            <useProjectArtifact>true</useProjectArtifact>
            <outputDirectory>/lib</outputDirectory>
            <unpack>false</unpack>
        </dependencySet>
        <dependencySet>
            <outputDirectory>/lib</outputDirectory>
            <useProjectArtifact>true</useProjectArtifact>
            <unpack>false</unpack>
            <scope>provided</scope>
        </dependencySet>
        <dependencySet>
            <outputDirectory>/lib</outputDirectory>
            <useProjectArtifact>true</useProjectArtifact>
            <unpack>false</unpack>
            <scope>runtime</scope>
        </dependencySet>
    </dependencySets>

    <fileSets>

        <fileSet>
            <directory>${project.basedir}</directory>
            <outputDirectory>/bin</outputDirectory>
            <includes>
                <include>startup*</include>
            </includes>
            <useDefaultExcludes>true</useDefaultExcludes>
        </fileSet>
        <fileSet>
            <directory>${project.basedir}</directory>
            <outputDirectory>/</outputDirectory>
            <includes>
                <include>README*</include>
            </includes>
            <useDefaultExcludes>true</useDefaultExcludes>
        </fileSet>
        <fileSet>
            <directory>${project.basedir}/src/main/resources</directory>
            <outputDirectory>/config</outputDirectory>
            <includes>
                <include>log4j2.xml</include>
            </includes>
            <useDefaultExcludes>true</useDefaultExcludes>
        </fileSet>
    </fileSets>
</assembly>

---

In parent pom.xml

<plugin>
            <artifactId>maven-assembly-plugin</artifactId>
            <version>2.6</version>
            <executions>
                <execution>
                    <id>id</id>
                    <phase>package</phase>
                    <goals>
                        <goal>single</goal>
                    </goals>
                    <configuration>
                        <!-- <archive>
                            <manifest>
                                <mainClass>com.XXXX.XXXXOfflineApp</mainClass>
                            </manifest>
                        </archive> -->
                        <descriptors>
                            <descriptor>distribution.xml</descriptor>
                             <descriptor>assembly.xml</descriptor>
                        </descriptors>
                    </configuration>
                </execution>
            </executions>
        </plugin>