"Azure Blob 存储 Java SDK 12 从 blob 名称中提取文件名"
[英]Azure Blob Storage Java SDK 12 extract file name from blob name
问题描述
let's say I have blob structure like this:
假设我有这样的 blob 结构：
dir0<\/code>
├── dir1<\/code>
│ ├── file11<\/code>
│ └── file12<\/code>
├── dir2<\/code>
└── dir3<\/code>
After listing the dir1<\/code> that contains two files file11<\/code> , file12<\/code> with listBlobsByHierarchy("dir0\/dir1\/")<\/code> method I'm getting two blobs with blobName<\/code> property set to dir0\/dir1\/file11<\/code> and dir0\/dir1\/file12<\/code> , so <virtual_path><\/code> \/ <file_name><\/code> .在使用 listBlobsByHierarchy(" file12<\/code> listBlobsByHierarchy("dir0\/dir1\/")<\/code>方法列出包含两个文件file11<\/code>和 file12 的dir1<\/code>之后，我得到两个blobName<\/code>属性设置为dir0\/dir1\/file11<\/code> dir0\/dir1\/file12<\/code>的 blob，所以<virtual_path><\/code> \/ <file_name><\/code> 。 That's OK, but in some point I need to get the <file_name><\/code> part.没关系，但在某些时候我需要获取<file_name><\/code>部分。
My question is: Does Azure Storage SDK 12 for Java provides a mechanism for obtaining <file_name><\/code> part from blob name?<\/strong>我的问题是：适用于 Java 的 Azure Storage SDK 12 是否提供了一种从 blob 名称中获取<file_name><\/code>部分的机制？<\/strong> I could do it myself but it's hard to believe that SDK doesn't provide this functionality... Maybe you guys know different elegant way to do so?我可以自己做，但很难相信 SDK 不提供这个功能......也许你们知道不同的优雅方式来做到这一点？ How do you usually handle such things?你通常如何处理这样的事情？
It's a bit weird to me that SDK seems not to support building prefixes or getting file names from blob names :PI expected sth like fileName<\/code> field in BlobItem<\/code> class or buildPrefix(List<String> segments)<\/code> method for joining path segments with '\/'.对我来说有点奇怪的是，SDK 似乎不支持构建前缀或从 blob 名称获取文件名：PI 预期的东西，例如BlobItem<\/code>类中的fileName<\/code>字段或用于使用“\/”连接路径段的buildPrefix(List<String> segments)<\/code>方法。
"1 个解决方案
解决方案1
0 2022-02-06 11:57:48
You just do:你只需这样做：
blobName.replaceFirst("^/dir0/dir1/", "")
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