二、Jforum核心类 Jforum
package net.jforum;/** *集成基类Servlet JForumBaseServlet *JForumBaseServlet 中也是负责对一起基本配置的加载 *搭配环境 */public class JForum extends JForumBaseServlet {private static boolean isDatabaseUp;public void init(ServletConfig config) throws ServletException {super.init(config);super.startApplication();isDatabaseUp = ForumStartup.startDatabase();try {Connection conn = DBConnection.getImplementation().getConnection();/** * 所有的SystemGlobals.getValue都是获取配置文件中的信息，至于他是如何加载配置文件 */conn.setAutoCommit(!(SystemGlobals.getBoolValue("database.use.transactions")));MySQLVersionWorkarounder dw = new MySQLVersionWorkarounder();dw.handleWorkarounds(conn);JForumExecutionContext ex = JForumExecutionContext.get();ex.setConnection(conn);JForumExecutionContext.set(ex);ForumStartup.startForumRepository();// 字面意思理解，加载排行，表情，板块信息RankingRepository.loadRanks();SmiliesRepository.loadSmilies();BanlistRepository.loadBanlist();} catch (Throwable e) {throw new ForumStartupException("Error while starting jforum", e);} finally {JForumExecutionContext.finish();}}/** * 这个方法是重点，他负调用其他的业务层，处理数据 */public void service(HttpServletRequest req, HttpServletResponse res)throws IOException, ServletException {Writer out = null;/** * JForumContext保存了容器的一些基本信息 从他的属性可以看出来 * contextPath : 容器路径 不知道怎么理解 * servletExtension : servlet的拓展 * request :servlet原始请求信息 * response : * isEncodingDisabled : boolean * isBot : boolean */JForumContext forumContext = null;RequestContext request = null;ResponseContext response = null;/** * 获取默认编码 在config/database下面 不同的数据库都有 */String encoding = SystemGlobals.getValue("encoding");try {JForumExecutionContext ex = JForumExecutionContext.get();req.getParameterNames();/** * WebRequestContext 这个类也非常重要， * 它负责对请求的一些参数处理 */request = new WebRequestContext(req);response = new WebResponseContext(res);checkDatabaseStatus(); /** * 创建 JForumContext对象 封装容器基本信息 */forumContext = new JForumContext(request.getContextPath(),SystemGlobals.getValue("servlet.extension"), request,response);ex.setForumContext(forumContext);JForumExecutionContext.set(ex);/** * context是封装在jar包里面的容器模板 */SimpleHash context = JForumExecutionContext.getTemplateContext();ControllerUtils utils = new ControllerUtils();utils.refreshSession();/** * 下面是系列的通用处理过程,把一些配置信息加载到容器当中 * ，对我们改装jforum功能作用不大 */context.put("logged", SessionFacade.isLogged());SecurityRepository.load(SessionFacade.getUserSession().getUserId());utils.prepareTemplateContext(context, forumContext);String module = request.getModule();String moduleClass = (module != null) ? ModulesRepository.getModuleClass(module) : null;if (moduleClass == null) {response.sendError(404);} else {boolean shouldBan = shouldBan(request.getRemoteAddr());if (!(shouldBan)) {context.put("moduleName", module);context.put("action", request.getAction());} else {moduleClass = ModulesRepository.getModuleClass("forums");context.put("moduleName", "forums");((WebRequestContext) request).changeAction("banned");}if ((shouldBan)&& (SystemGlobals.getBoolValue("banlist.send.403forbidden"))) {response.sendError(403);} else {context.put("language", I18n.getUserLanguage());context.put("session", SessionFacade.getUserSession());context.put("request", req);context.put("response", response);out = processCommand(out, request, response, encoding,context, moduleClass);}}} catch (Exception e) {handleException(out, response, encoding, e, request);} finally {handleFinally(out, forumContext, response);}}}?
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?? 如果需要 跟踪数据的话 毫无疑问是从这个类开始，以及编码 等其他信息均可在这里得到。