Maven打包(瘦身打包部署)，不包含第三方依赖jar包

原创

Jaemon 2022-12-03 23:26:02 博主文章分类：Maven ©著作权

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方式1

pom 配置

<properties>
    <startClass>com.answer.jaemon.Application</startClass>
</properties>

<build>
    <plugins>
        <!-- 生成不包含依赖jar的可执行jar包 -->
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <executions>
                <execution>
                    <!--
                    <goals>
                        <goal>repackage</goal>
                    </goals>
                    -->
                    <configuration>
                        <!-- 不加的话最终包名为: ${artifactId}-${version}.jar, 加了的话最终包名: ${artifactId}-${version}-${classifier}.jar  -->
                        <classifier>execute</classifier>
                        <!-- 不指定生成路径的话, 默认保存在 ${build.directory} 下 -->
                        <outputDirectory>
                            ${project.build.directory}/execute
                        </outputDirectory>
                    </configuration>
                </execution>
            </executions>
            <configuration>
                <finalName>${artifactId}-${version}</finalName>
                <layout>ZIP</layout>
                <mainClass>${startClass}</mainClass>
                <includes>
                    <include>
                        <groupId>bframe-parent</groupId>
                        <artifactId>bframe-aut-dao</artifactId>
                    </include>
                </includes>
            </configuration>
        </plugin>

        <!-- 拷贝依赖的jar包到lib目录 -->
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-dependency-plugin</artifactId>
            <executions>
                <execution>
                    <goals>
                        <goal>copy-dependencies</goal>
                    </goals>
                    <configuration>
                        <!-- ${project.build.directory}是maven变量，内置的，表示target目录,如果不写，将在跟目录下创建/lib -->
                        <outputDirectory>${project.build.directory}/lib</outputDirectory>
                        <!-- excludeTransitive:是否不包含间接依赖包，比如我们依赖A，但是A又依赖了B，我们是否也要把B打进去 默认不打-->
                        <excludeTransitive>false</excludeTransitive>
                        <!-- 复制的jar文件去掉版本信息 -->
                        <stripVersion>true</stripVersion>
                    </configuration>
                </execution>
            </executions>
        </plugin>

        <!-- 设置源文件编码方式 -->
        <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>

        <!-- 解决资源文件的编码问题 -->
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-resources-plugin</artifactId>
            <version>2.3</version>
            <configuration>
                <encoding>UTF-8</encoding>
            </configuration>
        </plugin>
    </plugins>
</build>

打包命令

mvn clean install -Dmaven.test.skip=true

启动jar包服务

java -Dloader.path=./lib -jar execute\jaemon-system-1.0-execute.jar
java -Dloader.path=./lib -jar execute\jaemon-system-1.0-execute.jar --spring.profiles.active=dev

方式2

pom 配置

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <configuration>
                <layout>ZIP</layout>
                <mainClass>${Start-Class}</mainClass>
            </configuration>
        </plugin>
    </plugins>
</build>

使用 -Dloader.path 时需要在打包的时候增加<layout>ZIP</layout>, 不指定的话 -Dloader.path 不生效

打包

mvn clean install dependency:tree -DoutputFile=.\target\dependency_tree.txt dependency:copy-dependencies -DoutputDirectory=.\target\lib -DincludeScope=runtime -Dmaven.test.skip=true

# 拷贝工程依赖包到 /data/lib 目录
# mvn dependency:copy-dependencies -DoutputDirectory=/data/lib -DincludeScope=runtime

dependency:tree： 输出工程jar包依赖关系

outputFile：指定输出文件路径
outputType：指定输出文件格式，默认text，还支持dot,graphml,tgf
appendOutput：追加输出，而不是覆盖

dependency:copy-dependencies： 拷贝依赖包到 lib 目录

outputDirectory：导出目录
includeScope：设置依赖级别

runtime scope gives runtime and compile dependencies,
compile scope gives compile, provided, and system dependencies,
test (default) scope gives all dependencies,
provided scope just gives provided dependencies,
system scope just gives system dependencies.

启动jar包服务

####################################
# 删除 jar包中 BOOT-INF/lib 目录的jar包
####################################
java -Dloader.path=./target/ib -jar target\jaemon-system-1.0-SNAPSHOT.jar

nohup java -Xms256m -Xmx512m -Dloader.path=./target/lib -jar target\jaemon-system-1.0-SNAPSHOT.jar > ./logs/log.out 2>&1 &

# 后续更新服务器jar包(在没有外部依赖包更新的情况下), 直接执行以下命令打包(注意: 上传jar包前先删除jar把中lib目录下的所有外部依赖包)
mvn clean package -Dmaven.test.skip=true

现有项目瘦身打包

将现有jar包中第三方依赖包解压出来

# 解压jar包到当前目录
jar -xvf demo-0.0.1.jar

# 解压jar包到指令路径libs目录下
unzip demo-0.0.1.jar -d libs/

修改pom.xml配置，编译出不带 lib 文件夹的Jar包

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <configuration>
                <layout>ZIP</layout>
                <includes>
                    <include>
                        <groupId>nothing</groupId>
                        <artifactId>nothing</artifactId>
                    </include>
                </includes>
            </configuration>
            <executions>
                <execution>
                    <goals>
                        <goal>repackage</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

执行编译

# 执行编译, 发现生成的jar包大小明显变小
mvn clean package

运行编译后jar包

# 执行运行命令
java -Dloader.path=./libs -jar demo-0.0.1.jar

扩展

如果想引入内部编译的依赖包可以通过includes属性进行添加

<plugin>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-maven-plugin</artifactId>
    <configuration>
        <layout>ZIP</layout>
        <includes>
            <include>
                <groupId>org.redisson</groupId>
                <artifactId>redisson</artifactId>
            </include>
        </includes>
    </configuration>
    <executions>
        <execution>
            <goals>
                <goal>repackage</goal>
            </goals>
        </execution>
    </executions>
</plugin>

如果引入内部包过多，也可以通过excludeGroupIds属性去掉不变的依赖包。

<plugin>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-maven-plugin</artifactId>
    <configuration>
        <layout>ZIP</layout>
        <excludeGroupIds>
            org.redisson,
            com.alibaba
        </excludeGroupIds>
    </configuration>
    <executions>
        <execution>
            <goals>
                <goal>repackage</goal>
            </goals>
        </execution>
    </executions>
</plugin>