Java工程中可执行JAR两种打包方式详解

一、需求概述

普通Java工程 docker-show 实现了定时打印docker应用信息，现在需要将其打包成可执行Jar部署到服务器端运行。

打包方式分为2种：

一体化可执行包
带外部依赖lib的可执行包

二、代码结构

三、运行结果

此项目使用了线程池定时打印docker应用名，端口信息

四、打包设置

1. 一体化可执行包

pom文件中引入 maven-assembly-plugin插件，核心配置

 <!-- 方式一：带dependencies运行包 --> <plugin> <artifactId>maven-assembly-plugin</artifactId> <version>3.5.0</version> <configuration> <appendAssemblyId>false</appendAssemblyId> <archive> <manifest> <mainClass>com.fly.simple.MainRun</mainClass> </manifest> </archive> <descriptorRefs> <!--将所有外部依赖JAR都加入生成的JAR包--> <descriptorRef>jar-with-dependencies</descriptorRef> </descriptorRefs> </configuration> <executions> <execution><!-- 配置执行器 --> <id>make-assembly</id> <phase>package</phase><!-- 绑定到package阶段 --> <goals> <goal>single</goal><!-- 只运行一次 --> </goals> </execution> </executions> </plugin>

2. 带外部依赖lib的可执行包

pom文件中引入 maven-dependency-plugin、maven-jar-plugin插件，核心配置

 <!-- 方式二：外部依赖lib目录运行包 --> <!-- 将项目依赖包复制到<outputDirectory>指定的目录下 --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-dependency-plugin</artifactId> <version>3.1.2</version> <executions> <execution> <id>copy-dependencies</id> <phase>package</phase> <goals> <goal>copy-dependencies</goal> </goals> <configuration> <outputDirectory>${project.build.directory}/lib</outputDirectory> <excludeArtifactIds>lombok</excludeArtifactIds> <includeScope>runtime</includeScope> <!-- 默认为test，包含所有依赖 --> </configuration> </execution> </executions> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-jar-plugin</artifactId> <version>3.2.0</version> <configuration> <archive> <manifest> <addClasspath>true</addClasspath> <classpathPrefix>lib</classpathPrefix> <mainClass>com.fly.simple.MainRun</mainClass> </manifest> <manifestEntries> <Class-Path>./</Class-Path> </manifestEntries> </archive> </configuration> </plugin>

五、打包运行

1. 源码放送

https://gitcode.com/00fly/demo

git clone https://gitcode.com/00fly/demo.git

或者使用下面的备份文件恢复成原始的项目代码

如何恢复，请移步查阅：神奇代码恢复工具

//goto pom-deps.xml <?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.fly</groupId> <artifactId>docker-show</artifactId> <version>0.0.1</version> <name>java-depend</name> <url>http://maven.apache.org</url> <packaging>jar</packaging> <properties> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-slf4j-impl</artifactId> <version>2.12.1</version> </dependency> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-lang3</artifactId> <version>3.5</version> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.18.12</version> <scope>provided</scope> </dependency> </dependencies> <build> <finalName>${project.artifactId}</finalName> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.8.1</version> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> <!-- 方式一：带dependencies运行包 --> <plugin> <artifactId>maven-assembly-plugin</artifactId> <version>3.5.0</version> <configuration> <appendAssemblyId>false</appendAssemblyId> <archive> <manifest> <mainClass>com.fly.simple.MainRun</mainClass> </manifest> </archive> <descriptorRefs> <!--将所有外部依赖JAR都加入生成的JAR包--> <descriptorRef>jar-with-dependencies</descriptorRef> </descriptorRefs> </configuration> <executions> <execution><!-- 配置执行器 --> <id>make-assembly</id> <phase>package</phase><!-- 绑定到package阶段 --> <goals> <goal>single</goal><!-- 只运行一次 --> </goals> </execution> </executions> </plugin> </plugins> </build> </project> //goto pom-lib.xml <?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.fly</groupId> <artifactId>docker-show</artifactId> <version>0.0.1</version> <name>java-depend</name> <url>http://maven.apache.org</url> <packaging>jar</packaging> <properties> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-slf4j-impl</artifactId> <version>2.12.1</version> </dependency> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-lang3</artifactId> <version>3.5</version> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.18.12</version> <scope>provided</scope> </dependency> </dependencies> <build> <finalName>${project.artifactId}</finalName> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.8.1</version> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> <!-- 方式二：外部依赖lib目录运行包 --> <!-- 将项目依赖包复制到<outputDirectory>指定的目录下 --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-dependency-plugin</artifactId> <version>3.1.2</version> <executions> <execution> <id>copy-dependencies</id> <phase>package</phase> <goals> <goal>copy-dependencies</goal> </goals> <configuration> <outputDirectory>${project.build.directory}/lib</outputDirectory> <excludeArtifactIds>lombok</excludeArtifactIds> <includeScope>runtime</includeScope> <!-- 默认为test，包含所有依赖 --> </configuration> </execution> </executions> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-jar-plugin</artifactId> <version>3.2.0</version> <configuration> <archive> <manifest> <addClasspath>true</addClasspath> <classpathPrefix>lib</classpathPrefix> <mainClass>com.fly.simple.MainRun</mainClass> </manifest> <manifestEntries> <Class-Path>./</Class-Path> </manifestEntries> </archive> </configuration> </plugin> </plugins> </build> </project> //goto pom.xml <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.fly</groupId> <artifactId>docker-show</artifactId> <version>0.0.1</version> <name>java-depend</name> <url>http://maven.apache.org</url> <packaging>jar</packaging> <properties> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-slf4j-impl</artifactId> <version>2.12.1</version> </dependency> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-lang3</artifactId> <version>3.5</version> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.18.12</version> <scope>provided</scope> </dependency> </dependencies> <build> <finalName>${project.artifactId}</finalName> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.8.1</version> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> <!-- 方式一：带dependencies运行包 --> <plugin> <artifactId>maven-assembly-plugin</artifactId> <version>3.5.0</version> <configuration> <appendAssemblyId>true</appendAssemblyId> <archive> <manifest> <mainClass>com.fly.simple.MainRun</mainClass> </manifest> </archive> <descriptorRefs> <!--将所有外部依赖JAR都加入生成的JAR包--> <descriptorRef>jar-with-dependencies</descriptorRef> </descriptorRefs> </configuration> <executions> <execution><!-- 配置执行器 --> <id>make-assembly</id> <phase>package</phase><!-- 绑定到package阶段 --> <goals> <goal>single</goal><!-- 只运行一次 --> </goals> </execution> </executions> </plugin> <!-- 方式二：外部依赖lib目录运行包 --> <!-- 将项目依赖包复制到<outputDirectory>指定的目录下 --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-dependency-plugin</artifactId> <version>3.1.2</version> <executions> <execution> <id>copy-dependencies</id> <phase>package</phase> <goals> <goal>copy-dependencies</goal> </goals> <configuration> <outputDirectory>${project.build.directory}/lib</outputDirectory> <excludeArtifactIds>lombok</excludeArtifactIds> <includeScope>runtime</includeScope> <!-- 默认为test，包含所有依赖 --> </configuration> </execution> </executions> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-jar-plugin</artifactId> <version>3.2.0</version> <configuration> <archive> <manifest> <addClasspath>true</addClasspath> <classpathPrefix>lib</classpathPrefix> <mainClass>com.fly.simple.MainRun</mainClass> </manifest> <manifestEntries> <Class-Path>./</Class-Path> </manifestEntries> </archive> </configuration> </plugin> </plugins> </build> </project>

//goto src\main\java\com\fly\simple\Executor.java package com.fly.simple; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.util.ArrayList; import java.util.Collections; import java.util.List; import java.util.Map; import java.util.Set; import java.util.TreeMap; import java.util.stream.Collectors; import java.util.stream.Stream; import org.apache.commons.lang3.StringUtils; import org.apache.commons.lang3.SystemUtils; import lombok.extern.slf4j.Slf4j; @Slf4j public class Executor { private static String DOCKER_PS_CMD = "docker ps --format \"{{.Names}} {{.Ports}}\""; / * execute命令 * * @param command * @throws IOException * @see [类、类#方法、类#成员] */ public static List<String> execute(String command) throws IOException { List<String> resultList = new ArrayList<>(); String[] cmd = SystemUtils.IS_OS_WINDOWS ? new String[] {"cmd", "/c", command} : new String[] {"/bin/sh", "-c", command}; Process ps = Runtime.getRuntime().exec(cmd); try (InputStream in = ps.getInputStream(); BufferedReader br = new BufferedReader(new InputStreamReader(in))) { String line; while ((line = br.readLine()) != null) { resultList.add(line); } } return resultList; } / * 获取docker相关信息 * * @throws IOException */ @Deprecated public static void printPorts1() throws IOException { Map<String, Set<String>> map = new TreeMap<>(); for (String line : execute(DOCKER_PS_CMD)) { log.info("{}", line); String name = StringUtils.substringBefore(line, " "); Set<String> ports = Stream.of(StringUtils.substringAfter(line, " ").split(",")).map(p -> StringUtils.substringBetween(p, ":", "->")).filter(StringUtils::isNotBlank).map(p -> p.replace(":", "")).sorted().collect(Collectors.toSet()); map.put(name, ports); } log.info("# {}", map); } / * 获取docker相关信息 * * @throws IOException */ public static void printPorts() throws IOException { Map<String, Set<String>> map = new TreeMap<>(); execute(DOCKER_PS_CMD).stream() .map(line -> Collections.singletonMap(StringUtils.substringBefore(line, " "), Stream.of(StringUtils.substringAfter(line, " ").split(",")).map(p -> StringUtils.substringBetween(p, ":", "->")).filter(StringUtils::isNotBlank).map(p -> p.replace(":", "")).sorted().collect(Collectors.toSet()))) .forEach(it -> map.putAll(it)); log.info("# {}", map); } } //goto src\main\java\com\fly\simple\MainRun.java package com.fly.simple; import java.io.IOException; import java.util.concurrent.ScheduledExecutorService; import java.util.concurrent.ScheduledThreadPoolExecutor; import java.util.concurrent.TimeUnit; public class MainRun { / * 线程池保证程序一直运行 * * @param args */ public static void main(String[] args) { ScheduledExecutorService service = new ScheduledThreadPoolExecutor(1); service.scheduleAtFixedRate(() -> { try { Executor.printPorts(); } catch (IOException e) { e.printStackTrace(); } }, 2, 10, TimeUnit.SECONDS); } }

//goto src\main\resources\log4j2.xml <?xml version="1.0" encoding="UTF-8"?> <configuration status="off" monitorInterval="0"> <appenders> <console name="Console" target="system_out"> <patternLayout pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" /> </console> </appenders> <loggers> <root level="INFO"> <appender-ref ref="Console" /> </root> </loggers> </configuration>

2. 打包执行

#完整打包 mvn clean package #一体化可执行包 mvn clean package -f pom-deps.xml #带外部依赖lib的可执行包 mvn clean package -f pom-lib.xml

3. 打包结果

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三、运行结果

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1. 一体化可执行包

2. 带外部依赖lib的可执行包

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2. 打包执行

3. 打包结果

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Java工程中可执行JAR两种打包方式详解

目录

一、需求概述

二、代码结构

三、运行结果

四、打包设置

1. 一体化可执行包

2. 带外部依赖lib的可执行包

五、打包运行

1. 源码放送

2. 打包执行

3. 打包结果

Python开根号的几种方式详解

8种常用的Python工具

2018淘气活泼以小字开头的男生个性网名汇总

Python如何对文件进行重命名

PUD是什么币种？PUD布丁币怎么样？

i5-8400和8600K哪个好？i5-8400与i5-8600K区别对比详细评测图解

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交换机IPSG怎么配置- 华为交换机于接口配置IPSG绑定的技巧

方舟生存进化蛋怎么孵化_方舟生存进化蛋孵化方法(必看)

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