java - Spring Tool Suite 中 Unresolved Maven 依赖关系

Question

我正在尝试开始使用 Spring，但我什至无法使入门项目正常工作。看来我的配置有问题，也许？我安装了 Spring 网站中编写的所有要求。

我将上传屏幕截图和错误。

CoreException: Could not calculate build plan: Plugin org.apache.maven.plugins:maven-compiler-plugin:3.1 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-compiler-plugin:jar:3.1: ArtifactResolutionException: Failure to transfer org.apache.maven.plugins:maven-compiler-plugin:pom:3.1 from https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced. Original error: Could not transfer artifact org.apache.maven.plugins:maven-compiler-plugin:pom:3.1 from/to central (https://repo.maven.apache.org/maven2): Connect to repo.maven.apache.org:443 [repo.maven.apache.org/151.101.36.215] failed: Connection timed out: connect

Answer 1

Maven 存储库有时难以响应下载请求。

这通常表明:

Connect to repo.maven.apache.org:443 [repo.maven.apache.org/151.101.36.215] failed: Connection timed out: connect

但是，即使该网站现在运行良好，这也会阻碍下载插件:

resolution will not be reattempted until the update interval of central has elapsed or updates are forced

所以如果this link正在工作，但错误仍然存​​在删除包含插件的本地目录:

${home}/.m2/repository/org/apache/maven/plugins/maven-compiler-plugin/3.1

然后再试一次。

您还可以尝试通过添加以下内容来使用最新的 maven-compiler-plugin:

<plugins>
    ...
    <plugin>
        <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.7.0</version>
    </plugin>
    ...