以下所有源码只截取了部分代码，标题即为类名
1、Web.xml
<filter-name>jfinal</filter-name>
<filter-class>com.jfinal.core.JFinalFilter</filter-class>
2、JFinalFilter
if (jfinal.init(jfinalConfig, filterConfig.getServletContext()) == false)
3、Jfinal
boolean init(JFinalConfig jfinalConfig, ServletContext servletContext) {
Config.configJFinal(jfinalConfig); // start plugin and init log factory in this method
}
4、Config
static void configJFinal(JFinalConfig jfinalConfig) {
jfinalConfig.configConstant(constants); initLogFactory();
jfinalConfig.configRoute(routes);
jfinalConfig.configPlugin(plugins); startPlugins(); // very important!!!
jfinalConfig.configInterceptor(interceptors);
jfinalConfig.configHandler(handlers);
}
加载jfinalConfig配置文件
5、jfinalConfig
public void configRoute(Routes me) {
//增加自定义route
me.add(new ApiRoute());
6、 Routes
public Routes add(Routes routes) {
if (routes != null) {
routes.config(); // very important!!!
for (Entry<String, Class<? extends Controller>> e : routes.map.entrySet()) {
String controllerKey = e.getKey();
if (this.map.containsKey(controllerKey)) {
throw new IllegalArgumentException("The controllerKey already exists: " + controllerKey);
}
this.map.put(controllerKey, e.getValue());
this.viewPathMap.put(controllerKey, routes.getViewPath(controllerKey));
}
}
return this;
}
7、JFinalFilter
加载完jfinalConfig回到JFinalFilter
public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
try {
handler.handle(target, request, response, isHandled);
}
// handler.handle(target, request, response, isHandled);是整个Filter最核心的方法
这里的handlre来自JFinalFilter.init方法中52行handler=jfinal.getHandler();
8、Jfinal
private void initHandler() {
Handler actionHandler = new ActionHandler(actionMapping, constants);
handler = HandlerFactory.getHandler(Config.getHandlers().getHandlerList(), actionHandler);
}
handler是由HandlerFactory的getHandler方法得来的，此处使用handler子类ActionHandler，并且传进去了有两个参数，一个是ActionMapping类的变量，一个是constants。
ActionMapping在ActionMapping中定义了一个路由(routes)和一个Interceptors,这个routes类里面主要的核心是两个Map,主要处理处理一些关于ActionMapping中对应的ControllerKey与Controller.class的事情。看下ActionHandler
9、ActionHandler
1）、根据ActionMapping获得相应的Action，
Action action = actionMapping.getAction(target, urlPara);
2）、然后利用反射进行方法的调用，最后把结果映射到相应的页面上去
new Invocation(action, controller).invoke();