SpringBoot2 Filter执行两次问题解决

Posted 2022-09-22 coderdxj

原因：在请求指定url之外还请求了/favicon.ico 地址 过滤掉问题就解决了

@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException 
    HttpServletRequest httpServletRequest=(HttpServletRequest) request;
    //favicon 不请求 否则给人执行两次的错觉
    if(!httpServletRequest.getRequestURI().contains("favicon.ico"))
        System.out.println(httpServletRequest.getRequestURI());
        chain.doFilter(request,response);