spring-boot - 我如何记录http请求的主机头(Spring Boot)

Question

我需要查看通过我的 Spring Boot 应用程序的所有请求的主机 header 是什么。我尝试记录所有请求 header ，但我似乎无法记录主机 header 。

Answer 1

创建一个过滤器，您将能够看到每个可用的 header 。这是示例代码:

@Component
@Order(Ordered.HIGHEST_PRECEDENCE)
public class RequestFilter implements Filter {

    public RequestFilter() {}

    @Override
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
        HttpServletRequest request = (HttpServletRequest) req;
        HttpServletRequest httpRequest = (HttpServletRequest) request;

        Enumeration<String> headerNames = httpRequest.getHeaderNames(); //print this to see all headers

        httpRequest.getHeader("host"); //returns the host header
        chain.doFilter(req, res);
    }

    @Override
    public void init(FilterConfig filterConfig) {}

    @Override
    public void destroy() {}
}