mvn clean install 无法解析类

Question

我有以下maven结构

parent POM.XML
 - common/pom.xml
 - search/pom.xml

当我在 search 模块上执行 mvn clean install 时，搜索模块无法获取 common 模块类 我得到package de.test.common does not exists。我什至在父平台上运行mvn clean install，但没有成功。 common 模块构建良好。

<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>de.test.search</groupId>
    <artifactId>search</artifactId>
    <packaging>jar</packaging>
    <parent>
        <groupId>de.test.platform</groupId>
        <artifactId>platform</artifactId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <properties>
        <app-name>search</app-name>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
        </dependency>
        <dependency>
            <groupId>de.test.common</groupId>
            <artifactId>common</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
    </dependencies>
    <profiles>
        <profile>
            <id>searchdev</id>
            <activation>
                <activeByDefault>true</activeByDefault>
            </activation>
            <dependencies>
                <dependency>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-devtools</artifactId>
                    <optional>true</optional>
                </dependency>
            </dependencies>
            <build>
                <plugins>
                    <plugin>
                        <groupId>org.springframework.boot</groupId>
                        <artifactId>spring-boot-maven-plugin</artifactId>
                    </plugin>
                    <plugin>
                        <groupId>org.apache.maven.plugins</groupId>
                        <artifactId>maven-surefire-plugin</artifactId>
                        <configuration>
                            <skipTests>true</skipTests>
                        </configuration>
                    </plugin>
                </plugins>
            </build>
            <properties>
                <!-- log configuration -->
                <logback.loglevel>DEBUG</logback.loglevel>
            </properties>
        </profile>
        <profile>
            <id>searchprod</id>
            <build>
                <plugins>
                    <plugin>
                        <groupId>com.heroku.sdk</groupId>
                        <artifactId>heroku-maven-plugin</artifactId>
                        <version>1.0.3</version>
                        <configuration>
                            <appName>${app-name}</appName>
                        </configuration>
                    </plugin>
                    <plugin>
                        <groupId>org.springframework.boot</groupId>
                        <artifactId>spring-boot-maven-plugin</artifactId>
                    </plugin>
                    <plugin>
                        <groupId>org.apache.maven.plugins</groupId>
                        <artifactId>maven-surefire-plugin</artifactId>
                        <configuration>
                            <skipTests>true</skipTests>
                        </configuration>
                    </plugin>
                </plugins>
            </build>
            <properties>
                <!-- log configuration -->
                <logback.loglevel>INFO</logback.loglevel>
            </properties>
        </profile>
    </profiles>
</project>

普通绒球

<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>de.test.common</groupId>
    <artifactId>common</artifactId>
    <packaging>jar</packaging>
    <parent>
        <groupId>de.test.platform</groupId>
        <artifactId>platform</artifactId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <properties>
        <app-name>common</app-name>
    </properties>
    <profiles>
        <profile>
            <id>commondev</id>
            <activation>
                <activeByDefault>true</activeByDefault>
            </activation>
            <dependencies>
                <dependency>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-devtools</artifactId>
                    <optional>true</optional>
                </dependency>
            </dependencies>
            <build>
                <plugins>
                    <plugin>
                        <groupId>org.apache.maven.plugins</groupId>
                        <artifactId>maven-surefire-plugin</artifactId>
                        <configuration>
                            <skipTests>true</skipTests>
                        </configuration>
                    </plugin>
                    <plugin>
                        <groupId>org.springframework.boot</groupId>
                        <artifactId>spring-boot-maven-plugin</artifactId>
                    </plugin>
                </plugins>
            </build>
            <properties>
                <!-- log configuration -->
                <logback.loglevel>DEBUG</logback.loglevel>
            </properties>
        </profile>
        <profile>
            <id>commonprod</id>
            <build>
                <plugins>
                    <plugin>
                        <groupId>com.heroku.sdk</groupId>
                        <artifactId>heroku-maven-plugin</artifactId>
                        <version>1.0.3</version>
                        <configuration>
                            <appName>${app-name}</appName>
                        </configuration>
                    </plugin>
                    <plugin>
                        <groupId>org.apache.maven.plugins</groupId>
                        <artifactId>maven-surefire-plugin</artifactId>
                        <configuration>
                            <skipTests>true</skipTests>
                        </configuration>
                    </plugin>
                    <plugin>
                        <groupId>org.springframework.boot</groupId>
                        <artifactId>spring-boot-maven-plugin</artifactId>
                    </plugin>
                </plugins>
            </build>
            <properties>
                <!-- log configuration -->
                <logback.loglevel>INFO</logback.loglevel>
            </properties>
        </profile>
    </profiles>
</project>

我想我也有这里提到的同样的问题

maven compilation failure

找到问题但没有找到原因

我删除了以下依赖，一切正常

          <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>

删除插件后，jar 会以不同的结构构建。当 spring boot 插件存在时，整个内容都在 BOOT-INF 文件夹中，我认为这是原因，但不确定......这里需要专家意见。

Answer 1

解决此问题的最简单方法是通过所谓的 reactor 项目，您可以在其中使用父 pom.xml 构建所有依赖模块。为此，将以下代码添加到您的父 POM：

<modules>
  <module>common</module>
  <module>search</module>
</modules>

现在，构建父 pPOM 并且您的整个构建应该可以工作。 另外，不要在子项目中使用显式版本，只从父 POM 继承版本（我认为你在那里很好）。如果从同一个项目 reactor 中引用依赖项，请使用版本 ${project.version}。

Answer 2

找到了解决办法。可能有人会觉得它有用。

<build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <classifier>exec</classifier>
                </configuration>
            </plugin>
        </plugins>
    </build>