53 lines
1.8 KiB
Java
53 lines
1.8 KiB
Java
package com.yexuejc.springboot.base.util;
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import javax.servlet.http.HttpServletRequest;
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import java.io.IOException;
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/**
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* 网络工具类
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*/
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public class NetUtil {
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private NetUtil() {
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}
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/**
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* 获取请求主机IP地址,如果通过代理进来，则透过防火墙获取真实IP地址;
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*
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* @param request
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* @return
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* @throws IOException
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*/
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public final static String getIp(HttpServletRequest request) throws IOException {
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// 获取请求主机IP地址,如果通过代理进来，则透过防火墙获取真实IP地址
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String ip = request.getHeader("X-Forwarded-For");
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if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
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if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
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ip = request.getHeader("Proxy-Client-IP");
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}
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if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
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ip = request.getHeader("WL-Proxy-Client-IP");
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}
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if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
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ip = request.getHeader("HTTP_CLIENT_IP");
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}
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if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
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ip = request.getHeader("HTTP_X_FORWARDED_FOR");
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}
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if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
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ip = request.getRemoteAddr();
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}
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} else if (ip.length() > 15) {
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String[] ips = ip.split(",");
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for (int index = 0; index < ips.length; index++) {
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String strIp = (String) ips[index];
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if (!("unknown".equalsIgnoreCase(strIp))) {
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ip = strIp;
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break;
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}
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}
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}
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return ip;
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}
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}
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