IntelliJ 无法使用 Maven 解析符号 3rd 方 jar

Question

我有一个第 3 方 JAR，我通过 mvn install:install-file 命令为它创建了一个工件。工件被添加到项目中，模块的pom.xml 和导入就好了。

不幸的是，使用来自第 3 方 JAR 的符号创建 Java 类仍未解决。红色灯泡显示，并且没有我所期望的“导入类”选项。

我试图使缓存无效 |重启但无济于事。

有什么想法吗？

编辑 如果我改为安装已编译的 JAR，则符号已解析。为什么会这样？

编辑 2 添加显示内部共享工件的 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>
    <packaging>pom</packaging>
    <name>Sandbox</name>
    <parent>
        <groupId>com.x.y</groupId>
        <artifactId>third-party-parent</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>

    <groupId>com.x.y.z</groupId>
    <artifactId>thirdparty-z</artifactId>
    <version>1.0-SNAPSHOT</version>

     <dependencies>
         <dependency>
             <groupId>com.x.y.thirdparty</groupId>
             <artifactId>thirdparty-sources</artifactId>
             <version>1.0</version>
         </dependency>

         <dependency>
             <groupId>com.x.y.thirdparty</groupId>
             <artifactId>thirdparty-compiled</artifactId>
             <version>1.0</version>
         </dependency>
     </dependencies>

</project>

Answer 1

这个 Maven 项目文件pom.xml 包含修复，以及一些关于更改内容和更改原因的提示/提示。

<?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 POM best at the top  -->
    <!--  WANRING: Here you import the parent of 3th party. This is (almost) never correct!!!  -->
    <!--  For a simple project, which only exists of 1 set of classes and unit tests, you do   -->
    <!--  not need a parent POM. Only for multi module Maven project, you will have a parent   -->
    <!--  POM. Or for organisation wide configuration, of repositories, Maven plugin           -->
    <!--  configuration, and so. When starting with a small project, leave out the parent POM  -->
    <!--  reference.                                                                           -->
    <parent>
        <groupId>com.x.y</groupId>
        <artifactId>third-party-parent</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>

    <!--  Better keep all project stuff together  -->
    <groupId>com.x.y.z</groupId>
    <artifactId>your-project-name</artifactId>
    <packaging>pom</packaging>
    <name>My Little Sandbox</name>
    <version>1.0.0-SNAPSHOT</version>

    <dependencies>
        <!--  Here only a reference to the compiled jar is required!!!                   -->
        <!--  If a source jar is available, it will get pulled in automatically!!!       -->
        <!--  As this is done by (naming) convention of all jars, in a Maven repository  -->
        <dependency>
            <groupId>com.x.y.thirdparty</groupId>
            <artifactId>thirdparty</artifactId>
            <version>1.0</version>
        </dependency>
    </dependencies>

</project>

备注： 新项目扩展第 3 方父 POM 的罕见情况是，新项目是第 3 方项目的某种扩展/插件。然后它可以使用与第 3 方使用的相同的 Maven 插件版本、依赖项等。这使得新的扩展/插件与第三方软件的其他部分配合得很好。

具体例子试试

<?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>

    <groupId>org.organisation.play-ground</groupId>
    <artifactId>my-little-sandbox</artifactId>
    <packaging>pom</packaging>
    <name>My Little Sandbox</name>
    <version>1.0.0-SNAPSHOT</version>

    <dependencies>
        <!--  A dependency reuired for each phase  -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.12</version>
        </dependency>

        <!--  A dependency only needed during runtime phase  -->
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
            <version>1.1.3</version>
            <scope>runtime</scope>
        </dependency>

        <!--  A dependency only needed during compile and test phase  -->
        <dependency>
            <groupId>org.testng</groupId>
            <artifactId>testng</artifactId>
            <version>6.9.8</version>
            <scope>test</scope>
        </dependency>
    </dependencies>
</project>