[求助]为什么HttpServlet中的方法基本都是protected?
protected void doDelete(HttpServletRequest req, HttpServletResponse resp) protected void doGet(HttpServletRequest req, HttpServletResponse resp) protected void doHead(HttpServletRequest req, HttpServletResponse resp) protected void doOptions(HttpServletRequest req, HttpServletResponse resp) protected void doPost(HttpServletRequest req, HttpServletResponse resp) protected void doPut(HttpServletRequest req, HttpServletResponse resp) protected void doTrace(HttpServletRequest req, HttpServletResponse resp) protected long getLastModified(HttpServletRequest req) protected void service(HttpServletRequest req, HttpServletResponse resp)
