通过WebService上传下载文件。分为客户端和服务器端两部分。-By WebService upload and download files. Divided into client and server in two parts.

里面包含了webservice的服务端和安卓客户端,双方可以进行数据通信,例如用户的注册,登录,文件的上传下载等等.-Which contains a webservice client service and Android client, the two sides can communicate data, such as user registration, login, uploading and downloading files and so on.