Class Libraries & REST APIs for the developers to manipulate & process Files from Word, Excel, PowerPoint, Visio, PDF, CAD & several other categories in Web, Desktop or Mobile apps. Develop & deploy on Windows, Linux, MacOS & Android platforms....fromtnefAttachment ); 提取附件 URI(当附件为 URI-附件时) 下面的代码片段演示了如何提取附件 URI。 MailMessage...getContentStream (); String uri = new String ( IOUtils . toByteArray...