eclipse使用阿里云镜像更新maven索引失败

访问https://maven.aliyun.com/mvn/view 里的central仓库 https://maven.aliyun.com/repository/central提示如下不知道是不是我宽带运营商的关系在maven的setting.xml中配置镜像如下：也尝试过https://maven.aliyun.com/repository/public http://maven.aliyun.com/nexus/content/groups/public 等等等，均无用。 rebuild index时会一闪而过，无事发生。但是却能够正常从这个镜像站点更新maven项目的依赖（其他连不上的镜像站则是无法下载项目的依赖）。尝试删除.metadata.plugins目录下的maven配置并重新安装maven，无果；还是一样的情况。查看eclipse的log有如下输出： !MESSAGE Unable to update index for nexus-aliyun|http://maven.aliyun.com/nexus/content/repositories/central: D:\environment\apache-maven-3.6.2\repository.cache\m2e\1.13.0\9b0ca939eed8e3c2c149cc1fca44fddd\nexus-maven-repository-index.zip (系统找不到指定的文件。) !STACK 0 java.io.FileNotFoundException: D:\environment\apache-maven-3.6.2\repository.cache\m2e\1.13.0\9b0ca939eed8e3c2c149cc1fca44fddd\nexus-maven-repository-index.zip (系统找不到指定的文件。) at java.base/java.io.FileInputStream.open0(Native Method) at java.base/java.io.FileInputStream.open(FileInputStream.java:219) at java.base/java.io.FileInputStream.(FileInputStream.java:157) at org.apache.maven.index.updater.DefaultIndexUpdater$FileFetcher.retrieve(DefaultIndexUpdater.java:568) at org.apache.maven.index.updater.DefaultIndexUpdater.loadIndexDirectory(DefaultIndexUpdater.java:206) at org.apache.maven.index.updater.DefaultIndexUpdater.access$300(DefaultIndexUpdater.java:75) at org.apache.maven.index.updater.DefaultIndexUpdater$LuceneIndexAdaptor.setIndexFile(DefaultIndexUpdater.java:645) at org.apache.maven.index.updater.DefaultIndexUpdater.fetchAndUpdateIndex(DefaultIndexUpdater.java:844) at org.apache.maven.index.updater.DefaultIndexUpdater.fetchAndUpdateIndex(DefaultIndexUpdater.java:156) at org.eclipse.m2e.core.internal.index.nexus.NexusIndexManager.updateRemoteIndex(NexusIndexManager.java:1140) at org.eclipse.m2e.core.internal.index.nexus.NexusIndexManager.updateIndex(NexusIndexManager.java:1084) at org.eclipse.m2e.core.internal.index.nexus.NexusIndexManager$1.run(NexusIndexManager.java:656) at org.eclipse.m2e.core.internal.index.nexus.IndexUpdaterJob.run(IndexUpdaterJob.java:72) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) 到设置的仓库目录的.cache\m2e\下查看，发现文件夹情况都类似，如下：