说明：   Applet是Java的一个重要概念。文章以一个移动办公系统的开发为背景，通过对applet和嵌入式浏览器特性的研究和分析，给出了以Applet应用为核心的基于嵌入式浏览器的页面 设计方案。并且突破Applet的安全限制，给出了Applet在线情况下访问远程数据库和离线情况下访问本地文件系统的实现方案，以满足该系统对同时支持在线和离线数据操作的要求。
(Java Applet is an important concept. Article with a mobile office system development background, through the applet and embedded browser features research and analysis, is given to application of the core Applet embedded browser-based page design. Applet security restrictions, and a breakthrough, given the situation Applet to access remote databases online and offline access to the local file system under the realization of solutions to meet the system supports both online and offline data manipulation requirements.)