ant是java开发工具的必备之一，ant测试工具代码是为了更好的实现ant的学习。-java development tools ant is one of the essential, ant code testing tools are ant in order to achieve better learning.

利用阿里云对象存储服务的云端加密API实现对用户上传文件的加密存储，实现云服务商端的数据加密保护。-Ali cloud object storage service utilizing cloud encryption API for users to upload files to achieve encrypted storage, data encryption protection cloud service provider side.