org.apache.logging.log4j.spring.boot.utils.RemoteAddrUtils Maven / Gradle / Ivy
package org.apache.logging.log4j.spring.boot.utils;
import javax.servlet.http.HttpServletRequest;
import org.springframework.util.StringUtils;
/**
* http://blog.csdn.net/caoshuming_500/article/details/20952329
*/
public class RemoteAddrUtils {
private static String[] headers = new String[]{"Cdn-Src-Ip", "X-Real-IP", "X-Forwarded-For", "Proxy-Client-IP", "WL-Proxy-Client-IP", "HTTP_CLIENT_IP", "HTTP_X_FORWARDED_FOR"};
private static String localIP = "127.0.0.1";
private static String UNKNOWN = "unknown";
private static String LOCALHOST = "localhost";
/**
* 获取请求客户端IP地址，支持代理服务器
* @author ： vindell
* @param request {@link HttpServletRequest}
* @return IP地址
*/
public static String getRemoteAddr(HttpServletRequest request) {
// 1、获取客户端IP地址，支持代理服务器
String remoteAddr = null;
for (String header : headers) {
remoteAddr = request.getHeader(header);
if(StringUtils.hasText(remoteAddr) && !UNKNOWN.equalsIgnoreCase(remoteAddr)){
break;
}
}
// 2、没有取得特定标记的值
if(StringUtils.isEmpty(remoteAddr) ){
remoteAddr = request.getRemoteAddr();
}
// 3、判断是否localhost访问
if(LOCALHOST.equalsIgnoreCase(remoteAddr)){
remoteAddr = localIP;
}
return remoteAddr;
}
}