GISToolkit是一个免费基于java的mapping工具包，它能够从多种数据源读取地理数据并把信息显示给用户，还能够直接编辑存在数据库中的地理特性。-GISToolkit is a free java based on the mapping tool kit, it can read from multiple data sources of geographic data and the information displayed to the user, can also direc