java获取访问者的IP和端口

目录

Java获取访问者的IP

Java 获取访问者端口

---

Java获取访问者的IP

import java.net.InetAddress;
import java.net.UnknownHostException;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.lang3.StringUtils;

import net.sf.json.JSONObject;

public class IPAddrUtils {
	
	/**
	 * 获取 IP 信息
	 * @param request
	 * @return
	 */
	public static String getIpAddr(HttpServletRequest request) {
	    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();
	        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();
	                ipAddress = inet.getHostAddress();
	            } catch (UnknownHostException e) {
	                System.out.println("出现异常:"+e.toString());
	            }
	        }
	    }

	    // 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
	    // "***.***.***.***".length() = 15
	    if (ipAddress != null && ipAddress.length() > 15) {
	        if (ipAddress.indexOf(",") > 0) {
	            ipAddress = ipAddress.substring(0, ipAddress.indexOf(","));
	        }
	    }
	    if("0:0:0:0:0:0:0:1".equals(ipAddress)){
	    	ipAddress="127.0.0.1";
	    }
	    return ipAddress;
	}
	
}

Java 获取访问者端口

String port= request.getLocalPort()+"";