# Maven 打包
# 添加指定资源
<build>
<resources>
<resource>
<directory>src/main/java</directory>
<!--配置添加xml,mybatis的xml需要打包-->
<includes>
<include>**/*.xml</include>
</includes>
</resource>
<resource>
<directory>src/main/resources</directory>
<!--配置添加resource资源文件下所有文件-->
<includes>
<include>**/*.*</include>
</includes>
</resource>
</resources>
</build>
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# 指定JDK版本
<build>
<plugins>
<!-- 指定Java版本 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
<encoding>utf-8</encoding>
</configuration>
</plugin>
</plugins>
</build>
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# 生成项目javadoc包
<build>
<plugins>
<!-- javadoc -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<version>2.9.1</version>
<executions>
<execution>
<id>attach-javadocs</id>
<goals>
<goal>jar</goal>
</goals>
<!-- 该处屏蔽jdk1.8后javadoc的严格校验 -->
<configuration>
<additionalparam>-Xdoclint:none</additionalparam>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
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# 生成项目源码包
<build>
<plugins>
<!-- 源码插件 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-source-plugin</artifactId>
<executions>
<execution>
<id>attach-sources</id>
<goals>
<goal>jar</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
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# 把第三方jar包封装到jar包
# 1. 使用assembly方式
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<version>3.0.0</version>
<configuration>
<!-- 当需要有main入口时打开下面注释天下指定mainClass包名 -->
<!--<archive>-->
<!--<manifest>-->
<!--<mainClass>com.xxx.xxx.Main</mainClass>-->
<!--</manifest>-->
<!--</archive>-->
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
<executions>
<execution>
<id>make-assembly</id> <!-- this is used for inheritance merges -->
<phase>package</phase> <!-- 指定在打包节点执行jar包合并操作 -->
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
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# 2. 使用 shade 方式 (推荐使用)
通过 maven-shade-plugin 生成一个 uber-jar，它包含所有的依赖 jar 包。
官方使用说明
http://maven.apache.org/plugins/maven-shade-plugin/index.html
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模板
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<executions>
<!-- Run shade goal on package phase -->
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<!-- 将依赖的某个Jar包内部的类或者资源 include/exclude 掉 -->
<filters>
<filter>
<artifact>*:*</artifact>
<excludes>
<exclude>META-INF/*.SF</exclude>
<exclude>META-INF/*.DSA</exclude>
<exclude>META-INF/*.RSA</exclude>
</excludes>
</filter>
</filters>
<!-- 这里指定入口 -->
<!--<transformers>-->
<!--<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">-->
<!--<mainClass>${groupId}.${mainClass}</mainClass>-->
<!--</transformer>-->
<!--</transformers>-->
<createDependencyReducedPom>false</createDependencyReducedPom>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
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# 配置 maven-shade-plugin
maven-shade-plugin 将 goal shade:shade 绑定到 phase package 上。
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>2.4.3</version>
<configuration>
<!-- put your configurations here -->
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
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- 执行命令
mvn clean package
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会在 target 文件生成一个 uber-jar，以 -shaded.jar 为后缀的 jar 包。
# 详细配置
将该工程依赖的部分 Jar 包 include/exclude 掉。
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>2.4.3</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<artifactSet>
<excludes>
<exclude>classworlds:classworlds</exclude>
<exclude>junit:junit</exclude>
<exclude>jmock:*</exclude>
<exclude>*:xml-apis</exclude>
<exclude>org.apache.maven:lib:tests</exclude>
<exclude>log4j:log4j:jar:</exclude>
</excludes>
</artifactSet>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
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将依赖的某个 Jar 包内部的类或者资源 include/exclude 掉。
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>2.4.3</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<filters>
<filter>
<artifact>junit:junit</artifact>
<includes>
<include>junit/framework/**</include>
<include>org/junit/**</include>
</includes>
<excludes>
<exclude>org/junit/experimental/**</exclude>
<exclude>org/junit/runners/**</exclude>
</excludes>
</filter>
<filter>
<artifact>*:*</artifact>
<excludes>
<exclude>META-INF/*.SF</exclude>
<exclude>META-INF/*.DSA</exclude>
<exclude>META-INF/*.RSA</exclude>
</excludes>
</filter>
</filters>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
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maven-shade-plugin 自动将所有不使用的类全部排除掉，将 uber-jar 最小化。
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>2.4.3</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<minimizeJar>true</minimizeJar>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
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默认会生成一个Jar包和一个以 "-shaded"为结尾的uber-jar包，可以通过配置来指定uber-jar的后缀名。
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>2.4.3</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<shadedArtifactAttached>true</shadedArtifactAttached>
<shadedClassifierName>jackofall</shadedClassifierName> <!-- Any name that makes sense -->
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
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通过设置 MainClass 创建一个可执行 Jar 包。
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>2.4.3</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>org.sonatype.haven.HavenCli</mainClass>
</transformer>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
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Java 工程经常会遇到第三方 Jar 包冲突，使用 maven shade plugin 解决 jar 或类的多版本冲突。
maven-shade-plugin 在打包时，可以将项目中依赖的 jar 包中的一些类文件打包到项目构建生成的 jar 包中，在打包的时候把类重命名。
下面的配置将 org.codehaus.plexus.util jar 包重命名为 org.shaded.plexus.util。
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>2.4.3</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<relocations>
<relocation>
<pattern>org.codehaus.plexus.util</pattern>
<shadedPattern>org.shaded.plexus.util</shadedPattern>
<excludes>
<exclude>org.codehaus.plexus.util.xml.Xpp3Dom</exclude>
<exclude>org.codehaus.plexus.util.xml.pull.*</exclude>
</excludes>
</relocation>
</relocations>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
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# 参考
Maven 默认插件以及功能 (opens new window)