public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
HttpServletRequest req = (HttpServletRequest) request;
HttpServletResponse resp = (HttpServletResponse) response;
String referer = req.getHeader("referer");
if(null != referer && referer.trim().startsWith("http://localhost:8080/dstn")){
System.out.println("正常页面请求");
chain.doFilter(req, resp);
}else{
System.out.println("盗链");
req.getRequestDispatcher("/html/error.html").forward(req, resp);
}
}
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