SpringBoot中怎么从request请求头上获取到请求的ip地址呢

在Spring Boot中，可以使用HttpServletRequest来获取请求的IP地址，具体可以通过以下代码来实现：

@Autowired
private HttpServletRequest request;

@RequestMapping(value = "/test")
public void test() {
    String ipAddress = request.getHeader("X-Forwarded-For");
    if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
        ipAddress = request.getHeader("Proxy-Client-IP");
    }
    if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
        ipAddress = request.getHeader("WL-Proxy-Client-IP");
    }
    if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
        ipAddress = request.getRemoteAddr();
    }
    System.out.println("IP地址：" + ipAddress);
}

在上述代码中，我们通过request.getHeader方法来获取请求头中的X-Forwarded-For、Proxy-Client-IP和WL-Proxy-Client-IP信息，如果这些信息都为空或为unknown，则使用request.getRemoteAddr方法获取客户端的IP地址。