Java获取登录用户的IP地址示例代码

package com.audaque.util;
 
import java.net.InetAddress;
import java.net.UnknownHostException;
 
import javax.servlet.http.HttpServletRequest;
 
public class GetIp {
	 public 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") || ipAddress.equals("0:0:0:0:0:0:0:1")){  
	                    //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(","));  
	                }  
	            }  
	            return ipAddress;   
	    }
}

public class HttpContextUtil {
    private HttpContextUtil(){
    }
    //获取HttpServletRequest请求
    public static HttpServletRequest getHttpServletRequest() {
        return ((ServletRequestAttributes) Objects.requireNonNull(RequestContextHolder.getRequestAttributes())).getRequest();
    }
}

        sysLog.setOperationTime(LocalDateTimeUtil.getCurrentDatetime());
        //获取用户名
        sysLog.setUsername(UserUtil.get("username", String.class));
        //获取用户ip地址
        HttpServletRequest request = HttpContextUtil.getHttpServletRequest();
        sysLog.setIp(IPUtil.getIpAddr(request));