使用maven-compiler-plugin以及maven-shade-plugin完成maven项目打包

最近负责一个纯maven项目(项目需求尽量轻量化)，需要自己完成打包工作.
因此，基于maven-compiler-plugin以及maven-shade-plugin完成项目的打包工作.

其中:

• maven-compiler-plugin负责项目编译；
• maven-shade-plugin负责最终的打包操作.

以下所示操作，均在pom.xml文件中进行.

项目基本属性

    <groupId>com.test</groupId>
    <artifactId>app</artifactId> //
    <version>0.1.0</version>
    <packaging>jar</packaging>
    
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

添加插件

<build>
        <plugins>

            <!-- 编译java项目-->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>
                    <source>${java.version}</source>
                    <target>${java.version}</target>
                </configuration>
            </plugin>

            <!-- 创建一个fat jar,包含所有必须的依赖 -->
            <!-- 根据自己的main函数替换<mainClass>...</mainClass>中的配置 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>3.0.0</version>
                <executions>
                    <!-- Run shade goal on package phase -->
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <artifactSet>
                                <!-- 指定不需要打包的文件(可以使用通配符) -->
                                <excludes>
                                    <exclude>org.apache.flink:force-shading</exclude>
                                    <exclude>com.google.code.findbugs:jsr305</exclude>
                                    <exclude>org.slf4j:*</exclude>
                                    <exclude>log4j:*</exclude>
                                </excludes>
                            </artifactSet>
                            <filters>
                                <filter>
                                    <!-- Do not copy the signatures in the META-INF folder.
                                    Otherwise, this might cause SecurityExceptions when using the JAR. -->
                                    <artifact>*:*</artifact>
                                    <excludes>
                                        <exclude>META-INF/*.SF</exclude>
                                        <exclude>META-INF/*.DSA</exclude>
                                        <exclude>META-INF/*.RSA</exclude>
                                    </excludes>
                                </filter>
                            </filters>
                            <transformers>
                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <mainClass>com.test.app.Application</mainClass>
                                </transformer>
                            </transformers>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>

Tips:

maven-shade-plugin比较强大，还可以解决打包文件中的依赖冲突,读者可以自行寻找相关文章.

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