经过@JFinal指导,代码减少了多
Engine engine = Engine.use().setBaseTemplatePath(PathKit.getWebRootPath()+"/templates/jango");
FileWriter fw=new FileWriter(PathKit.getWebRootPath()+"/index.html",false);
engine.getTemplate("/index.html").render(null,fw);
fw.flush();
fw.close();好了,可以用来做CMS的生成静态页了