File exchange based B/S system card reading and writing method
A technology for reading and writing cards and files, which is applied in the computer field, can solve problems such as inability to effectively identify control characters or data, and fail to meet the requirements for reading and writing security cards, so as to improve card reading efficiency, improve flexibility, and reduce workload. Effect
Inactive Publication Date: 2013-04-17
NO 15 INST OF CHINA ELECTRONICS TECH GRP
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Problems solved by technology
However, this reading and writing method is suitable for cards that only store the card number in the card. When the card contains both the card number and the stored data, this reading and writing method makes the system unable to effectively identify the control characters or data, and guarantees the card. The card contains both the card number and the stored data, so the existing reading and writing methods cannot meet the reading and writing requirements of the security card
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[0031] In order to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0032] 1) Guarantee card information stored in the card:
[0033] The data in the card is sequentially stored in the form of a binary stream, and the specific meaning of the binary stream is explained by the storage method specified in Table 1. When reading and writing data, adopt the way of reading and writing as a whole.
[0034] Table 1. Data storage format in the card
[0035]
[0036] 2) The storage method of insurance card information in the insurance card system:
[0037] Security card information exists in the form of objects in the security card system. Each object represents a card information, and the information in the card is stored in binary form. In order to store the object information in the card, in order to store the object informati...
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The invention discloses a file exchange based B / S system card reading and writing method, which comprises card reading operation and card writing operation. In an ActiveX widget mode, a binary file is used as the information exchange medium to realize the reading and writing operation of a client side card by a B / S system; and the data of the card is transmitted to a server in the binary form and is analyzed by the server, or is stored to the card after being analyzed by the server. The workload of a client side can be reduced, and the card reading efficiency is improved. The data is exchanged in the binary form, a control character is permitted to be stored in the card, and therefore the card information range is expanded.
Description
technical field [0001] The invention relates to the technical field of computers, in particular to a method for reading and writing cards in a B / S system based on file exchange. Background technique [0002] The WEB browser is the main application software of the client, and the B / S system is the mainstream way to develop the application system at present. The core part of the system is concentrated on the server, which simplifies the development, maintenance and use of the system. [0003] Accessing the client's card-reading device in the WEB browser is mainly realized by using the ActiveX control. The current mainstream method is to read the card number through the ActiveX control, and the system identifies the identity of the card through the card number. However, this reading and writing method is suitable for cards that only store the card number in the card. When the card contains both the card number and the stored data, this reading and writing method makes the syst...
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IPC IPC(8): G06K17/00H04L29/08
Inventor 姚文明
Owner NO 15 INST OF CHINA ELECTRONICS TECH GRP