WebFlux获取ip地址

目前用到的

1.方法中添加参数

public String getIp(ServerWebExchange serverWebExchange){
        ServerHttpRequest request = serverWebExchange.getRequest();
        HttpHeaders headers = request.getHeaders();
        String ip = headers.getFirst("x-forwarded-for");
        if (ip != null && ip.length() != 0 && !"unknown".equalsIgnoreCase(ip)) {
            // 多次反向代理后会有多个ip值，第一个ip才是真实ip
            if (ip.indexOf(",") != -1) {
                ip = ip.split(",")[0];
            }
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = headers.getFirst("Proxy-Client-IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = headers.getFirst("WL-Proxy-Client-IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = headers.getFirst("HTTP_CLIENT_IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = headers.getFirst("HTTP_X_FORWARDED_FOR");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = headers.getFirst("X-Real-IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getRemoteAddress().getAddress().getHostAddress();
        }

        return ip.replaceAll(":", ".");
    }

2.切面中需要用到ip做日志

public void doAfterThrowing(JoinPoint joinPoint, Throwable throwable){
　　　　　Object[] objects = joinPoint.getArgs();　
        ServletRequestAttributes attributes = (ServletRequestAttributes) ServerWebExchange serverWebExchange = null;
        for (Object o : objects) {
            if(o instanceof ServerWebExchange){
                serverWebExchange = (ServerWebExchange)o;
            }
        }
        ServerHttpRequest request = serverWebExchange.getRequest();
        String ip = request.getRemoteAddress().getAddress().toString();
}

 如果是在Gateway使用，请参考https://www.cnblogs.com/gqymy/p/14597464.html