用Mapxtreme for java开发webgis，其中涉及地图服务器的多用户进程访问的问题，本程序提供了源码程序-with MapXtreme webgis for java development, which involves map server multi-user access to the process, the procedures provide a source programs

一个很棒的基于java的开源GIS系统OpenMap(TM)。-OpenMap is a Java Beans based toolkit for building applications and applets needing geographic information. Using OpenMap components, youcan access data from legacy applications, in-place, in a distributed setting.