Pax Computer Technology (shenzhen) Co., Ltd.

Langming Tan

Lihong Xie

Renchi Zheng

Jianghui Cao

Embodiments of the invention disclose a data transmitting method, a server and a client. The method embodiments of the invention include: obtaining a client application list file uploaded by a client; determining whether a file in a object application list file exists in the client application list file, and determining whether a hash value sha2 of the file in the object application list file is identical to a hash value sha2 of a file in the client application list file; adding the non-existed file into an incremental file list when the file in the object application list file does not exist in the client application list file; adding a file which is not identical into the incremental file list when the hash value sha2 of the file in the object application list file is different from the hash value sha2 of the file in the client application list file; packaging and compressing the object application list file, a signature file of the object application list file and the file in the incremental file list to create an incremental upgrade package such that the client can upgrade the application package through the incremental upgrade package.

Data transmitting method, server and client

An embodiment of the present invention provides a point of sale (POS) application development method and a cloud server, which are configured to realize development and deployment of an application through the cloud server so as to shorten the development cycle of the POS application. The method of the embodiment of the present invention includes: by a cloud server, receiving and saving application project data transmitted from a web client; by the cloud server, processing the application project data and obtaining an application package; by the cloud server, performing signature processing for the application package and obtaining a signed application package; by the cloud server, transmitting the signed application package to a POS so that the POS realizes an corresponding application based on the signed application package. Another embodiment of the present invention further provides a cloud server.

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Shenzhen, China

Langming Tan