正如一些回答所指出的，有时您确实想要完全删除本地存储库，例如，可能有一些工件不能被清除，因为它们不再被pom引用。

如果你想把这个删除嵌入到maven阶段，比如clean，你可以使用maven-clean-plugin并通过设置访问存储库，例如:

 <plugin>
    <inherited>false</inherited>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-antrun-plugin</artifactId>
    <version>1.1</version>
    <executions>
        <execution>
            <phase>clean</phase>
            <goals>
                <goal>run</goal>
            </goals>
            <configuration>
                <tasks>
                    <echo>Base clean is attached to deleting local maven cache</echo>
                    <echo>${settings.localRepository}</echo>
                </tasks>
            </configuration>
        </execution>
    </executions>
</plugin>

<plugin>
    <inherited>false</inherited>
    <artifactId>maven-clean-plugin</artifactId>
    <version>3.1.0</version>
    <configuration>
        <filesets>
            <fileset>
                <directory>${settings.localRepository}</directory>
            </fileset>
        </filesets>
    </configuration>
</plugin>

删除c:\Users\<username>\。M2 \资源库的手。

我也遇到过同样的问题，我在shell中编写了一行程序来解决这个问题。

rm -rf $(mvn help:evaluate -Dexpression=settings.localRepository\
                       -Dorg.slf4j.simpleLogger.defaultLogLevel=WARN -B \
                       -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn | grep -vF '[INFO]')/*

我把它当做一行代码，因为我想有一个jenkins项目，只要我需要，就可以简单地运行它，这样我就不必登录到东西上，等等。 如果你允许自己为它编写一个shell脚本，你可以把它写得更清楚:

#!/usr/bin/env bash
REPOSITORY=$(mvn help:evaluate \
  -Dexpression=settings.localRepository \
  -Dorg.slf4j.simpleLogger.defaultLogLevel=WARN \
  -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn \
  --batch-mode \
  | grep -vF '[INFO]')

rm -rf $REPOSITORY/*

Should work, but I have not tested all of that script. (I've tested the first command, but not the whole script.) This approach has the downside of running a large complicated command first. It is idempotent, so you can test it out for yourself. The deletion is its own command afterwards, and this lets you try it all out and check that it does what you think it does, because you shouldn't trust deletion commands without verification. However, it is smart for one good reason: It's portable. It respects your settings.xml file. If you're running this command, and tell maven to use a specific xml file (the -s or --settings argument), this will still work. So you don't have to fiddle with making sure everything is the same everywhere.

这有点笨拙，但在我看来，这是一种体面的做生意方式。

我会做以下几点:

mvn dependency:purge-local-repository -DactTransitively=false -DreResolve=false --fail-at-end

标志告诉maven不要尝试解析依赖项或攻击网络。删除您在本地看到的内容。

为了更好地衡量，忽略错误(——fail-at-end)直到最后。这有时对于依赖项集有点混乱或依赖于有点混乱的内部存储库(这种情况时有发生)的项目很有用。

正如一些回答所指出的，有时您确实想要完全删除本地存储库，例如，可能有一些工件不能被清除，因为它们不再被pom引用。

如果你想把这个删除嵌入到maven阶段，比如clean，你可以使用maven-clean-plugin并通过设置访问存储库，例如:

 <plugin>
    <inherited>false</inherited>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-antrun-plugin</artifactId>
    <version>1.1</version>
    <executions>
        <execution>
            <phase>clean</phase>
            <goals>
                <goal>run</goal>
            </goals>
            <configuration>
                <tasks>
                    <echo>Base clean is attached to deleting local maven cache</echo>
                    <echo>${settings.localRepository}</echo>
                </tasks>
            </configuration>
        </execution>
    </executions>
</plugin>

<plugin>
    <inherited>false</inherited>
    <artifactId>maven-clean-plugin</artifactId>
    <version>3.1.0</version>
    <configuration>
        <filesets>
            <fileset>
                <directory>${settings.localRepository}</directory>
            </fileset>
        </filesets>
    </configuration>
</plugin>

使用mvn dependency:purge-local-repository - dacttransitive =false -Dskip=true如果你有maven插件作为模块之一。否则，Maven将尝试重新编译它们，从而再次下载依赖项。