使用Java[重复]从客户端的HTTP请求获取IP地址

Question

我在Tomcat 7上使用Spring 4 MVC实现RESTful Web服务。

想知道如果外部客户端发送HTTP请求，是否有办法在服务器端层中获取特定客户端的IP地址？

Answer 1

简单POJO

public static InetAddress getClientIpAddr(HttpServletRequest request) {  
    String ip = request.getHeader("X-Forwarded-For");  
    if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {  
        ip = request.getHeader("Proxy-Client-IP");  
    }  
    if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {  
        ip = request.getHeader("WL-Proxy-Client-IP");  
    }  
    if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {  
        ip = request.getHeader("HTTP_CLIENT_IP");  
    }  
    if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {  
        ip = request.getHeader("HTTP_X_FORWARDED_FOR");  
    }  
    if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {  
        ip = request.getRemoteAddr();  
    }  
    try {
        return InetAddress.getByName(ip);
    } catch (UnknownHostException e) {
        return null;
    }  
}

Answer 2

org.springframework.security.web.authentication.WebAuthenticationDetails

与web身份验证请求相关的选定HTTP详细信息的持有者。

指示从中接收身份验证请求的TCP/IP地址。

String ipAddress = ((WebAuthenticationDetails)SecurityContextHolder.getContext().getAuthentication().getDetails()).getRemoteAddress();

如果您在本地应用程序上进行测试，您的ip地址将为“0:0:0:0:0:0:1”