public static void main(String[] args) {
   WebMacroTemplateEngine a = new WebMacroTemplateEngine();
   Template t = new DefaultTemplate();
   t.setResource("noservlet.wm");
   Context c = new DefaultContext();
   c.put("msg", "hello中文哦.");
   StringWriter writer = new StringWriter();
   a.mergeTemplate(t, c, writer);
   System.out.println(writer.toString());
 }