java - 使用intellij的maven错误正在引用自己

Question

我有这 2 个简单的 pom.xml 主父项目和项目正在使用主项目 pom.xml 的模块：

<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>com.clouddispatcher</groupId>
    <artifactId>clouddispatcher</artifactId>
    <packaging>pom</packaging>
    <version>1.0-SNAPSHOT</version>
    <modules>
        <module>aws-manager</module>
    </modules>
    <dependencies>
        <dependency>
            <groupId>com.clouddispatcher</groupId>
            <artifactId>aws-manager</artifactId>
            <version>1.0-SNAPSHOT</version>
            <scope>compile</scope>
        </dependency>
    </dependencies>
    <properties>
        <aws.java.sdk.version>1.11.875</aws.java.sdk.version>
    </properties>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
    <dependencyManagement>
        <dependencies>

            <dependency>
                <groupId>com.amazonaws</groupId>
                <artifactId>aws-java-sdk</artifactId>
                <version>${aws.java.sdk.version}</version>
            </dependency>
        </dependencies>
    </dependencyManagement>

</project>

和模块 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">
    <parent>
        <artifactId>clouddispatcher</artifactId>
        <groupId>com.clouddispatcher</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>aws-manager</artifactId>
    <dependencies>
        <dependency>
            <groupId>com.amazonaws</groupId>
            <artifactId>aws-java-sdk</artifactId>
        </dependency>
    </dependencies>
</project>

现在当我运行时：

mvn clean install

我不断收到此错误：

The build could not read 1 project -> [Help 1]
  
  The project com.clouddispatcher:aws-manager:1.0-SNAPSHOT (C:\Dev\my\java\clouddispatcher\aws-manager\pom.xml) has 1 error
    'dependencies.dependency. com.clouddispatcher:aws-manager:1.0-SNAPSHOT' for com.clouddispatcher:aws-manager:1.0-SNAPSHOT is referencing itself. @ com.clouddispatcher:clouddispatcher:1.0-SNAPSHOT, C:\Dev\my\java\clouddispatcher\pom.xml, line 23, column 21
To see the full stack trace of the errors, re-run Maven with the -e switch.
Re-run Maven using the -X switch to enable full debug logging.
For more information about the errors and possible solutions, please read the following articles:
[Help 1] http://cwiki.apache.org/confluence/display/MAVEN/ProjectBuildingException

标签： javamavenintellij-idea

Answer 1

让我更详细地解释 khmarbaise 的要点：

1. 父母不能有 Java 类。您需要从父级中删除类。
2. 您不能定义循环依赖，即如果 A 是 B 的父级，则它不能将 B 作为依赖。

您需要重构您的项目以满足这些标准，例如将类从父模块移动到第二个模块。