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public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
HttpServletRequest rq=(HttpServletRequest) request;
RequestDispatcher rd = rq.getRequestDispatcher("/");
if(!rq.getRequestURI().equals("/")&&!rq.getRequestURI().equals("/perso.do")&&rq.getSession().getAttribute("diquid")==null){
rq.setAttribute("msg", "超时,请重新登录");
rd.forward(request, response);
}
if (ignore || (request.getCharacterEncoding() == null)) {
String encoding = selectEncoding(request);
if (encoding != null) {
request.setCharacterEncoding(encoding);
}
}
chain.doFilter(request, response);
}