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头是什么。我尝试记录所有请求标头，但似乎无法记录主机标头。

Answer 1

创建一个筛选器，您将能够看到每个可用的标题。下面是一个示例代码：

@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() {}
}

Answer 2

打印所有标题的示例代码。

@GetMapping("/headers")
    public String getHeaders(@RequestHeader Map<String, String> headers) {
        headers.forEach((key, value) -> {
            System.out.println(String.format("Header '%s' = %s", key, value));
        });
     return "success";
    }

这会对你有帮助！