TL; DR
Maven在存储库MultiValueMap<String, String> testMap = new MultiValueMap<String, String>();
if (atlastMap.hasNext()) {
System.out.println("Found a way");
}
中找不到<importedGroupid>:<importedArtifactid>:jar:1.0。该包实际上在file://<homeDirectory>/.m2/repository/
我不认为理解Maven，但我能想象的两个潜在原因是：
<homeDirectory>/.m2/repository/<importedGroupid>/<importedArtifactid>/1.0/和:混淆（即UNIX样式路径分隔符与Maven中/的含义相比）或:和:实际上被解释为相同，则其搜索的路径包含实际目录结构中不存在的另一个子目录级/。详细说明
我试图在Maven中本地导入一个包（因为该包未在线部署）。 stackoverflow上的各种答案（例如，this和this）建议在包含包的jar上运行jar，如果是这样（假设jar在mvn install中，则是版本1.0等等。）：
/usr/share/java并通过添加：
在当前包mvn install:install-file -Dfile=/usr/share/java/<importedArtifactid>-1.0-SNAPSHOT.jar -DgroupId=<importedGroupid> -DartifactId=<importedArtifactid> -Dversion=1.0 -Dpackaging=JAR -DgeneratePom=true
中定义此内容
pom.xml <repository>
<id>repository</id>
<url>file://${user.home}/.m2/repository/</url>
</repository>
命令将程序包部署到mvn install。到目前为止，这很好用：
<homeDirectory>/.m2/repository/该套餐还会显示在<prompt> $ mvn install:install-file -Dfile=/usr/share/java/<importedArtifactid>-1.0-SNAPSHOT.jar -DgroupId=<importedGroupid> -DartifactId=<importedArtifactid> -Dversion=1.0 -Dpackaging=JAR -DgeneratePom=true
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building <currentDirectoryProject> 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-install-plugin:2.4:install-file (default-cli) @ <currentDirectoryProjectArtifactid> ---
[INFO] Installing /usr/share/java/economicsl-1.0-SNAPSHOT.jar to <homeDirectory>/.m2/repository/<importedGroupid>/<importedArtifactid>/1.0/<importedArtifactid>-1.0.JAR
[INFO] Installing /tmp/mvninstall256012398997457078.pom to <homeDirectory>/.m2/repository/<importedGroupid>/<importedArtifactid>/1.0/<importedArtifactid>-1.0.pom
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.489 s
[INFO] Finished at: 2017-05-11T19:11:12+01:00
[INFO] Final Memory: 9M/292M
[INFO] ------------------------------------------------------------------------
<prompt> $
<homeDirectory>/.m2/repository/但是，构建尝试导入包的项目失败：
<prompt> $ ls `<homeDirectory>/.m2/repository/<importedGroupid>/<importedArtifactid>/1.0/`
<importedArtifactid>-1.0.JAR <importedArtifactid>-1.0.jar.lastUpdated <importedArtifactid>-1.0.pom _remote.repositories
<prompt> $
如果在<prompt> $ mvn package -U
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building <currentDirectoryProject> 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
Downloading: file://<homeDirectory>/.m2/repository/<importedGroupid>/<importedArtifactid>/1.0/<importedArtifactid>-1.0.jar
Downloading: https://repo.maven.apache.org/maven2/<importedGroupid>/<importedArtifactid>/1.0/<importedArtifactid>-1.0.jar
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.730 s
[INFO] Finished at: 2017-05-12T17:59:43+01:00
[INFO] Final Memory: 13M/292M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project <currentDirectoryProjectArtifactid>: Could not resolve dependencies for project <currentDirectoryProjectGroupid>:<currentDirectoryProjectArtifactid>:jar:1.0-SNAPSHOT: Could not find artifact <importedGroupid>:<importedArtifactid>:jar:1.0 in repository (file://<homeDirectory>/.m2/repository/) -> [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
<prompt> $
中定义了/usr/share/java中jar的绝对路径，则项目会成功构建，并显示不使用绝对路径的警告，但执行失败，因为它再次找不到包这一次。
Maven版本是Apache Maven 3.3.9。
占位符
pom.xml应该导入其他包的项目。所有终端命令都从该项目的根目录执行（这是<currentDirectoryProject>所在的位置。）pom.xml应该导入其他包的项目的ArtifactID。<currentDirectoryProjectArtifactid>应该导入其他包的项目的GroupID。<currentDirectoryProjectGroupid>要导入的项目的ArtifactID <importedArtifactid>要导入的项目的GroupID <importedGroupid>用户的主目录，即<homeDirectory> /home/<userName>终端提示答案 0 :(得分：4)
你有一个大写的文件扩展名“JAR”，maven看起来是小写的“jar”。如果您的文件系统区分大小写，那么这很重要。