java获取客户端的IP地址工具类
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java获取客户端的IP地址工具类
import java.net.InetAddress;
import java.net.UnknownHostException;
import javax.servlet.http.HttpServletRequest;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
public class IpUtil
public static String getIpAddr()
ServletRequestAttributes attrs = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
HttpServletRequest request = (HttpServletRequest) attrs.getRequest();
String ipAddress = null;
try
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();
if (ipAddress.equals("127.0.0.1"))
// 根据网卡取本机配置的IP
InetAddress inet = null;
try
inet = InetAddress.getLocalHost();
catch (UnknownHostException e)
e.printStackTrace();
ipAddress = inet.getHostAddress();
// 对于通过多个代理的情况,第一个IP为客户端真实IP,多个IP按照','分割
if (ipAddress != null && ipAddress.length() > 15) // "***.***.***.***".length()
// = 15
if (ipAddress.indexOf(",") > 0)
ipAddress = ipAddress.substring(0, ipAddress.indexOf(","));
catch (Exception e)
ipAddress = "";
// ipAddress = this.getRequest().getRemoteAddr();
return ipAddress;
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