Design of QT-4.7 LAN Chat System Based on ARM Linux

Instant messaging technologies are becoming more and more mature as network gains popularity and develops rapidly. Instant messaging software such as QQ and Wechat from Tencent, Mitalk and YY Voice are based on C/S mode. In this paper, after completing software development, the platform is migrated and its kernel recompiled. After building root file system and migrating relevant library files, it not only resolves the problems such as Chi-nese gibberish and missing input method after migration, but also designs an instant messaging software for enterprises similar to IP messenger through P2P technology and C++ pro-gramming in QT framework based on Socket communication mechanism, thus realizing messaging and file transfer within LAN.