| People never stop the footsteps of pursuing communication and freedom. The appearance of Internet technology which broke the communication limit of space and time has become the milestone for people to chase and get freedom .While mobile terminals let people suspend off-line restraint to communicate anywhere and anytime.From inintial Bp to PDA and the intelligent handset ,Mobile terminals is developing following the direction of network , intellectualized and wide band.The development technology over mobile terminals is BREW and J2ME except WAP and I-Mode.BREW is the abrivation of Binary Runtime Environment for Wireless, which is designed by QUALCOMM . It can provid universal platform interface for the development and running of wireless data application. It can also provide a comprehensive , end to end wileless development, device configuration, application distribution, cost and payment solution.J2ME is Java 2 MicroEdition which is designed by Sun ,and were specially used in consuming electronic devices (include wireless devices ,such as cell phone and PDA) to develope.As to the net BREW and J2ME is running, one is running over GPRS , the other is CDMA. The goal of this paper is to construct a multi- platforms large-scale network application system.Through Internet on server we realize different platform mobile termination to sharing data . The user may have different mobile terminals to enter the identical application space. The paper do some research on construct the overall system. To the server part, I designed it and realize data stransmit and communicate.To the client part, I accomplished BREW platform side and J2ME platform side 's application . I also has completed the client side core algorithm solution and done some rearch work on key problems .Those solutions was used and... |
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