response.setHeader("Content-type", "textml;charset=UTF-8");
response.setCharacterEncoding("UTF-8");
response.getWriter().write("子非鱼焉知鱼之乐");
response.setHeader("Content-type", "textml;charset=UTF-8");
response.setCharacterEncoding("UTF-8");
response.getWriter().write("子非鱼焉知鱼之乐");