部署多功能模块依赖项目中解决的问题
介绍
做一个用户管理项目,采用的Spring-Cloud技术,还没确定最终的项目结构,所以展示的只是整个项目的一部分(Eureka在另一个工程中),我要说的工程是完整的,工程整体结构如下图所示。
在部署该工程过程中主要遇到两个问题,两个问题均与pom.xml文件有关系,在此主要讨论pom文件的设置。展示pom文件如下,Gateway模块依赖UserManagement模块且两个模块均需要生成jar包提供给系统执行。
MAP pom.xml(父)
<?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>
<parent>
<artifactId>spring-boot-starter-parent</artifactId>
<groupId>org.springframework.boot</groupId>
<version>2.3.1.RELEASE</version>
<relativePath/>
</parent>
<groupId>com.aci.ma</groupId>
<artifactId>MAP</artifactId>
<version>1.0-SNAPSHOT</version>
<name>MAP</name>
<packaging>pom</packaging>
<properties>
<java.version>1.8</java.version>
<spring.cloud-version>Hoxton.SR8</spring.cloud-version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.10</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.20</version>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.12</version>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring.cloud-version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<modules>
<!-- 按子目录名读取解析-->
<module>UserManagement</module>
<module>Gateway</module>
</modules>
</project>
Gateway 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>
<parent>
<groupId>com.aci.ma</groupId>
<artifactId>MAP</artifactId>
<version>1.0-SNAPSHOT</version>
<relativePath>../pom.xml</relativePath> <!-- lookup parent from repository -->
</parent>
<artifactId>Gateway</artifactId>
<packaging>jar</packaging>
<name>Gateway</name>
<properties>
<skipTests>true</skipTests>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-autoconfigure</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-zuul</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>
<dependency>
<groupId>com.aci.ma</groupId>
<artifactId>UserManagement</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
UserManagement 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>
<artifactId>UserManagement</artifactId>
<packaging>jar</packaging>
<name>UserManagement</name>
<description>MAP用户管理后端</description>
<parent>
<groupId>com.aci.ma</groupId>
<artifactId>MAP</artifactId>
<version>1.0-SNAPSHOT</version>
<relativePath>../pom.xml</relativePath> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<skipTests>true</skipTests>
</properties>
<dependencies>
<dependency>
<!-- 字符编解码 -->
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>1.11</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<!-- 做java代码和json的转换 -->
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.70</version>
</dependency>
<dependency>
<!-- 封装io操作 -->
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.5</version>
</dependency>
<dependency>
<!-- 针对面向切面编程 -->
<groupId>aopalliance</groupId>
<artifactId>aopalliance</artifactId>
<version>1.0</version>
</dependency>
<!--shiro和spring整合-->
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-spring</artifactId>
<version>1.6.0</version>
</dependency>
<!--shiro核心包-->
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-core</artifactId>
<version>1.6.0</version>
</dependency>
<!--shiro与redis整合-->
<dependency>
<groupId>org.crazycake</groupId>
<artifactId>shiro-redis</artifactId>
<version>3.1.0</version>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<!-- <dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency> -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.11</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>3.3.2</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<classifier>exec</classifier>
</configuration>
</plugin>
</plugins>
</build>
</project>
以上是解决问题后的pom文件
问题一:如何让打包出来的Gateway.jar对UserManagement.jar的依赖
从网上找了些资料,有说换mvn命令的,有说将build标签放在父pom中的,有说可以只在依赖包中设置build标签打出包含所有它依赖包的jar文件。实践证明,mvn命令的效果是一样的(尽管过程中有时甚至都过不了mvn打包环节的,而且一会过了一会儿过不了);如果最终你想让子模块打出的包通过java -jar命令运行出来(运行不出来报什么清单的错),就必须在子pom文件中声明build标签。最终我在maven多模块项目中子模块可以运行,打包报错找到答案:需要将UserManagement模块的普通包和可执行包分开生成,既能执行也能提供Gateway的依赖。
问题二:在阿里云流水线上打包报错找不到父模块的pom
参考链接:maven报错Non-resolvable parent POM---pom找不到parent指明relativePath的值即可(由于我指明的值是relativePath的默认值,所以我认为可能的原因是需要展开relativePath标签,至少本地测试没问题)
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