我正在尝试进行 Spring Boot 多阶段构建，我有一个 Spring Boot 项目 X，其中包含两个 util 项目作为其他文件夹中的依赖项，当我尝试进行构建时它失败，因为该依赖项不存在。
我尝试使用多模块 maven 项目，但这个工具将用于其他项目。
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 08:23 min
[INFO] Finished at: 2019-09-27T01:29:09Z
[INFO] Final Memory: 44M/228M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project projectX: Could not resolve dependencies for project com.demo:projectX:jar:0.1: The following artifacts could not be resolved: com.util:util1:jar:0.1, com.util:util2:jar:0.1: Could not find artifact com.util:util1:jar:0.1 in spring-milestones (https://repo.spring.io/milestone) -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException
ERROR: Service 'projectX' failed to build: The command '/bin/sh -c ./mvnw dependency:go-offline -B' returned a non-zero code: 1
（编辑）这是用于多级 Maven 构建的dockerfile
（编辑） docker build 命令和上下文路径来自父文件夹
FROM openjdk:8-jdk-alpine as build-util1
WORKDIR /util1
COPY ./components/util1/mvnw .
COPY ./components/util1/.mvn .mvn
COPY ./components/util1/pom.xml .
COPY ./components/util1/src src
RUN ./mvnw clean install
FROM openjdk:8-jdk-alpine as build-util2
WORKDIR /util
COPY --from=build-util1 /root/.m2 /root/.m2
COPY ./components/util2/mvnw .
COPY ./components/util2/.mvn .mvn
COPY ./components/util2/pom.xml .
COPY ./components/util2/src src
RUN ./mvnw clean install
FROM openjdk:8-jdk-alpine as build
WORKDIR /app
COPY --from=build-util2 /root/.m2 /root/.m2
COPY mvnw .
COPY .mvn .mvn
COPY pom.xml .
RUN ./mvnw dependency:go-offline -B
COPY src src
RUN ./mvnw -X package -DskipTests
RUN mkdir -p target/dependency && (cd target/dependency; jar -xf ../*.jar)
FROM openjdk:8-jre-alpine
ARG DEPENDENCY=/app/target/dependency
COPY --from=build ${DEPENDENCY}/BOOT-INF/lib /app/lib
COPY --from=build ${DEPENDENCY}/META-INF /app/META-INF
COPY --from=build ${DEPENDENCY}/BOOT-INF/classes /app
ENTRYPOINT ["java","-cp","app:app/lib/*","com.demo.projectx.ProjectX"]
这是项目X的 pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.7.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<groupId>com.demo</groupId>
<artifactId>projectX</artifactId>
<version>0.1</version>
<name>projectX</name>
<description>projectX</description>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<spring-cloud.version>Greenwich.SR3</spring-cloud.version>
<docker.image.prefix>jxssw</docker.image.prefix>
<docker.image.name>${project.artifactId}</docker.image.name>
<docker.image.tag>${project.version}</docker.image.tag>
</properties>
<dependencies>
<!-- utils -->
<dependency>
<groupId>com.util</groupId>
<artifactId>util1</artifactId>
<version>0.1</version>
</dependency>
<dependency>
<groupId>com.util</groupId>
<artifactId>util2</artifactId>
<version>0.1</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<!-- Dockerfile Maven -->
<plugin>
<groupId>com.spotify</groupId>
<artifactId>dockerfile-maven-plugin</artifactId>
<version>1.4.10</version>
<configuration>
<googleContainerRegistryEnabled>false</googleContainerRegistryEnabled>
<repository>${docker.image.prefix}/${docker.image.name}</repository>
<tag>${project.version}</tag>
</configuration>
<executions>
<execution>
<id>build</id>
<phase>clean</phase>
<goals>
<goal>build</goal>
<goal>tag</goal>
</goals>
</execution>
<execution>
<id>push</id>
<phase>deploy</phase>
<goals>
<goal>push</goal>
</goals>
</execution>
</executions>
</plugin>
<!-- Dockerfile Maven -->
</plugins>
<finalName> ${project.artifactId}</finalName>
</build>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
</repository>
</repositories>
</project>
（编辑）添加文件夹结构：
.(parent)
├── projects
| └── projectX
│ ├── pom.xml
│ ├── Dockerfile
│ └── src
│ └── main
├── components
| └── util1
│ ├── pom.xml
│ └── src
│ └── main
| └── util2
│ ├── pom.xml
│ └── src
│ └── main