Maven项目打包时,如果遇到需要添加本地jar包依赖的时候,可以选择两种方法: 1. 安装到本地仓库 第一种方法比较常规,适用于需要添加的jar包也是由maven项目导出,含有pom文件的时候。只需要将jar包安装到本地maven仓库下,然后添加依赖即可。 (1)安装到本地仓库,执行以下命令(其中的-Dfile/-DgroupId/-DartifactId/-Dversion项根据pom文件内容填写):
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mvn install:install-file -Dfile=xxxxx.jar -DgroupId=xxx.xxx.xxx -DartifactId=xxxxx -Dversion=1.0.0 -Dpackaging=jar |
(2)安装之后可以在本地仓库中找到对应的jar包。然后将对应的依赖信息插入到工程的pom文件即可:
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<dependency> <groupId>xxx.xxx.xxx</groupId> <artifactId>xxxxx</artifactId> <version>1.0.0</version> </dependency> |
2. dependency中指定scope="system"和本地jar包路径 这种方法适用于其他方式导出的jar包,jar包中不含有pom信息,从而无法安装进本地仓库的情况。做法是:先配置本地jar包依赖,然后在build时将设置将jar包导出,同时配置manifest。 (1)配置本地jar包依赖(systemPath指向本地jar包路径):
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<dependency> <groupId>com.amazonaws</groupId> <artifactId>aws-java-sdk-s3</artifactId> <version>1.11.0</version> <scope>system</scope> <systemPath>${project.basedir}/lib/xxx.jar</systemPath> </dependency> |
(2)在<build>的spring-boot-maven-plugin中设置将本地jar包导出到项目最终的依赖库中:
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<plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <configuration> <includeSystemScope>true</includeSystemScope> </configuration> </plugin> |
(3)如果项目使用maven-jar-plugin插件打包的话,还需要在manifectEntries中添加对应的jar包信息;否则虽然jar包导出了,但是项目生成的MANIFEST.MF文件中没有对应的依赖信息,也会导致运行时找不到对应的class。
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<plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-jar-plugin</artifactId> <configuration> <archive> <manifest> <addClasspath>true</addClasspath> <classpathPrefix>lib/</classpathPrefix> <mainClass>XXXX</mainClass> </manifest> <manifestEntries> <Class-Path>./ lib/xxxxx.jar</Class-Path> </manifestEntries> </archive> <outputDirectory> ${project.build.directory}/XXXXX </outputDirectory> </configuration> </plugin> |
(4)最后附上一个项目完整的<build>配置(该配置可以将最终生成的jar包和依赖库、配置文件分开)。
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<build> <finalName>XXXXX</finalName> <sourceDirectory>src/main/java</sourceDirectory> <resources> <resource> <directory>src/main/resources</directory> <targetPath>${project.build.directory}/XXXXX</targetPath> <excludes> <exclude>**/*.java</exclude> </excludes> </resource> </resources> <testSourceDirectory>src/test/java</testSourceDirectory> <testResources> <testResource> <directory>src/test/resources</directory> <filtering>true</filtering> <excludes> <exclude>**/*.java</exclude> </excludes> </testResource> </testResources> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <configuration> <includeSystemScope>true</includeSystemScope> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-surefire-plugin</artifactId> <configuration> <skipTests>true</skipTests> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-dependency-plugin</artifactId> <executions> <execution> <id>copy-dependencies</id> <phase>package</phase> <goals> <goal>copy-dependencies</goal> </goals> <configuration> <outputDirectory> ${project.build.directory}XXXXX/lib </outputDirectory> </configuration> </execution> </executions> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-jar-plugin</artifactId> <configuration> <archive> <manifest> <addClasspath>true</addClasspath> <classpathPrefix>lib/</classpathPrefix> <mainClass>xxx.xxx.XXXXX</mainClass> </manifest> <manifestEntries> <Class-Path>./ lib/xxxxx.jar</Class-Path> </manifestEntries> </archive> <outputDirectory> ${project.build.directory}/XXXXX </outputDirectory> </configuration> </plugin> </plugins> </build> |
from:https://www.cnblogs.com/strugglion/p/12513956.html
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