Maven插件学习（一）——生成可执行的 JAR 文件

默认打包生成的jar是不能够直接运行的，因为带有main方法的类信息不回添加到manifest中（打开jar文件中 META/MANIFEST.MF文件，将无法看到Main-Class行）

maven-shade-plugin插件生成可运行的jar文件,该插件会自动将依赖包生成到jar包中。

maven-assembly-plugin插件生成可运行的jar文件,需要配置属性 jar-with-dependencies才能将依赖包生成到jar包中

maven-shade-plugin插件

配置pom文件如下

<?xml version="1.0" encoding="UTF-8"?>
<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>com.ch.tech</groupId>
    <artifactId>maven-jar</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.shade.plugin.version>3.6.0</maven.shade.plugin.version>
    </properties>

    <dependencies>
        <!-- SLF4J API -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>2.0.6</version>
        </dependency>

        <!-- Log4j2 实现 -->
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-slf4j2-impl</artifactId>
            <version>2.20.0</version>
        </dependency>

        <!-- Log4j2 核心 -->
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-core</artifactId>
            <version>2.20.0</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>${maven.shade.plugin.version}</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configura