IntelliJ IDEA可以连接到专用资源,以下载JDK和Maven库的共享索引,并为项目的代码构建共享索引。每当IntelliJ IDEA需要重新索引您的应用程序时,它都会使用可用的共享索引并为项目的其余部分建立本地索引。通常,这比从头开始为整个应用程序构建本地索引要快。(IntelliJ IDEA can connect to the dedicated resource to download shared indexes for your JDK and Maven libraries and build shared indexes for your project's code. Whenever IntelliJ IDEA needs to re-index your application, it will use the available shared indexes and will build local indexes for the rest of the project. Normally, this is faster than building local indexes for the entire application from scratch.)
来自官方:减少索引时间的一种可能方法是使用共享索引。与在本地构建的常规索引不同,共享索引仅生成一次,以后在需要时可在另一台计算机上重用。(One of the possible ways of reducing the indexing time is by using shared indexes. Unlike the regular indexes that are built locally, shared indexes are generated once and are later reused on another computer whenever they are needed.)