IPUtils.java
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package com.huaheng.control.management.utils;
import lombok.experimental.UtilityClass;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import javax.servlet.http.HttpServletRequest;
import java.util.Objects;
/**
* IP工具类
*/
@UtilityClass
public class IPUtils {
/**
* 获取客户端真实IP地址，并将回环地址转换为localhost
* @param request HttpServletRequest对象
* @return 客户端真实IP，回环地址显示为localhost
*/
public static String getClientIP(HttpServletRequest request) {
if (request == null) {
return "unknown";
}
String[] headers = {"X-Forwarded-For", "X-Real-IP", "Proxy-Client-IP", "WL-Proxy-Client-IP", "HTTP_CLIENT_IP", "HTTP_X_FORWARDED_FOR"};
for (String header : headers) {
String ip = request.getHeader(header);
if (isValidIP(ip)) {
return formatIP(ip.split(",")[0].trim());
}
}
return formatIP(request.getRemoteAddr());
}
/**
* 从当前请求上下文获取客户端IP
* @return 客户端IP，回环地址显示为localhost
*/
public static String getClientIP() {
try {
ServletRequestAttributes attributes = (ServletRequestAttributes)RequestContextHolder.getRequestAttributes();
if (attributes != null) {
HttpServletRequest request = attributes.getRequest();
return getClientIP(request);
}
} catch (Exception e) {
// 忽略异常，返回unknown
}
return "unknown";
}
/**
* 格式化IP地址，将回环地址转换为localhost
* @param ip 原始IP地址
* @return 格式化后的IP地址
*/
private static String formatIP(String ip) {
if (ip == null || ip.isEmpty()) {
return "unknown";
}
// 将IPv6和IPv4回环地址统一转换为localhost
if ("0:0:0:0:0:0:0:1".equals(ip) || "::1".equals(ip) || "127.0.0.1".equals(ip)) {
return "localhost";
}
return ip;
}
/**
* 获取请求的完整URL，并将回环地址替换为localhost
* @param request HttpServletRequest对象
* @return 完整URL
*/
public static String getFullURL(HttpServletRequest request) {
if (request == null) {
return "unknown";
}
StringBuffer requestURL = request.getRequestURL();
String queryString = request.getQueryString();
String url = requestURL.toString();
// 将URL中的回环地址替换为localhost
url = url.replace("0:0:0:0:0:0:0:1", "localhost").replace("::1", "localhost").replace("127.0.0.1", "localhost");
if (queryString != null) {
return url + "?" + queryString;
}
return url;
}
/**
* 获取用户代理信息
* @param request HttpServletRequest对象
* @return User-Agent信息
*/
public static String getUserAgent(HttpServletRequest request) {
return request != null ? request.getHeader("User-Agent") : "unknown";
}
/**
* 验证IP地址是否有效（排除回环地址）
* @param ip IP地址
* @return 是否有效
*/
private static boolean isValidIP(String ip) {
return ip != null && ip.length() != 0 && !"unknown".equalsIgnoreCase(ip) && !"0:0:0:0:0:0:0:1".equals(ip) && !"::1".equals(ip) && !"127.0.0.1".equals(ip);
}
/**
* 判断是否为本地回环地址
* @param ip IP地址
* @return 是否为回环地址
*/
public static boolean isLoopbackAddress(String ip) {
return "localhost".equals(ip) || "0:0:0:0:0:0:0:1".equals(ip) || "::1".equals(ip) || "127.0.0.1".equals(ip);
}
}