將軟體框架元件的方法應用在網路伺服器之設計與實作

Abstract

由於網際網路蓬勃的發展，許多網路上的服務（如全球資訊網--WWW）變 的相當的重要，而主從式的架構被大多數的網路服務所採用；在主從式的 架構中網路伺服器居於一個舉足輕重的地位，它可以根據這個網路服務所 設定的協定來對發出請求的客戶端產生回應。對於日漸發展的網路服務來 說，網路伺服器的發展主宰了一個網路服務的中心，因此，能夠快速的發 展網路伺服器，便成為一個刻不容緩的研究課題了。我們的目標是設計一 個網路伺服器的軟體框架元件，利用這個軟體框架元件來快速地發展網路 服務上所需的網路伺服器。這個網路伺服器的軟體框架元件是根據軟體再 利用的觀念，以及物件導向的技術來製作的，不但可以簡化網路伺服器的 製作，更可以整合所設計出來的許多不同的伺服器。最後，我們利用此軟 體框架元件來實作一個網路遊戲發展系統中的網路遊戲伺服器；在這個網 路遊戲發展系統中，是以視覺化的方式將遊戲以描述檔的方式來製作，並 結合網路的功能，使得玩家可以透過網路遊戲伺服器來玩遊戲以及互相溝 通訊息。 The Internet business grows rapidly in recent years and is expected to be a major trend in network communication. Thus, Internet services, like World Wide Web,have become a very important subject to be studied. The client/server model is adopted widely by these Internet services and the Internet server plays a major role in the design of this model. Thus, how to develop various Internet servers efficiently has become a challenged topic in the network research area.In this thesis research, we attempt to use the concept of framework component to design a generic framework of application for various servers. The motivationalso comes from the concept of software reuse. Based on the developed frameworkfor server design, we present several network servers can be designed and developed efficiently based on the framework approach. Specially, we use a network game server as an example to show how it can be designed based on the framework of network server. In the network game developing system, we script the network games in a visual style and players can play the network game and communicate with one another through the network game server.