E:\IdeaProjects\chatgpt-springboot-service\target\classes\测试文档.doc is not a directory.

This error message indicates that the path specified (E:\IdeaProjects\chatgpt-springboot-service\target\classes\测试文档.doc) is not a directory, but rather a file. This means that any attempt to treat it as a directory (for example, attempting to list its contents) will fail.

To resolve this issue, you may need to modify your code to handle files and directories differently, or check that the path you are using is valid and points to a directory if you intend to treat it as such.