【摘要】 利用J2ME网络API接口javax.microedition.io.HttpConnection来建立HTTP连接实现与服务器通信进行数据传递,服务器端利用Servlet来响应用户查询请求,使用Mapxtremeforjava专有类和方法进行地图数据处理。设计出适合客户端(CLDC)地图的显示算法。客户端具有以用户查询的点为中心显示地图以及计算两点距离的功能。更多还原

【Abstract】 By using the net API interface javax.microedition.io.HttpConnection of J2ME a HTTP connection is set up to communicate and transmit datas between the server and the client.With Mapxtreme for java v4.5’ s special class and method the map data can be processed.An al- gorithm is designed for the client to display maps.The client has two main functions,one is displaying a map with the center of the user request, the other is calculating the distance of two points.更多还原