Design And Implementation Of Auto Printing And Scanning Based On QR Code

With the rise of things such as the concept of two-dimensional code technology is increasingly applied in other industrial,commercial and cultural fields.Outstanding achievements made by China two-dimensional code technology for the development of networking technology was the basis for a reliable technology.However,automatic scanning two-dimensional code recognition software is not mature enough,the presence of the recognition rate,error correction ability,identify slow and so on.The main purpose of this paper is to solve the problem of these problems and achieve iText module has a two-dimensional code QR Code generation function and Google Zxing project automatically scan a two-dimensional code recognition through research,to integrate the two into the same system,in order to achieve QR Code automatic printing and automatic identification scanning.This thesis is focusing on the implementation of automatic printing and scanning based on research and analysis of the two-dimensional code which is QR Code.The key problem to be solved is how to generate Code QR and how to use the components to print the QR Code in the PDF file.We need to import the third party open source JAR package which is supporting the functionality of printing QR Code in the PDF file.After search the internet,there are two projects:open source project named ZXing from Google and the other open source JAR package named qrcode_swetake from a Japan Inc named swetake.They can generate QR Code and print it in the PDF file,and they also can decode the QR Code from scanned PDF.We can download the open source JAR packages,and then import them into our project to solve the issue of QR Code encoding and decoding.In this subject we implemented the requirement that automatically generation,printing and scanning for QR Code,and in the mean while,addressing the major issues that QR code cannot be decoded when the two-dimensional code scanning is in poor quality or two-dimensional code is tarnished,thereby improving the two-dimensional code decoding rate,providing better support while applying it to business areas.