在portlet获取客户端IP地址(转)

最新推荐文章于 2025-08-18 12:24:55 发布

原创最新推荐文章于 2025-08-18 12:24:55 发布 · 109 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#F#

本文介绍了两种在Liferay环境中获取客户端真实IP地址的方法：一是通过反射机制直接获取HttpServletRequest对象；二是利用Liferay提供的PortalUtil工具类。这两种方法都能有效处理经过代理服务器转发的情况，并针对不同的HTTP头部进行检查。

<p>方案一通过反射直接获取HttpServletRequest
//Liferay 屏蔽了获取remoteHost 方法，但request对象是保留在私有域
java.lang.reflect.Field f =
request.getClass().getDeclaredField("_request ");
f.setAccessible(true) ;//设置该变量可视
HttpServletRequest httpServletRequest = (HttpServletRequest)
f.get(request); //拿到Request
/* 以下处理用代理时的情况 */
String ip = httpServletRequest.getHeader("x-forwarded-for");
if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = httpServletRequest.getHeader("Proxy-Client-IP");
}
if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = httpServletRequest.getHeader("WL-Proxy-Client-IP");
}
if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = httpServletRequest.getRemoteAddr();
}
System.out.println("ip:="+ip);
方案二通过Liferay提供的工具
HttpServletRequest httpServletRequest =
com.liferay.portal.util.PortalUtil.getHttpServletRequest(renderRequest);
String ip = httpServletRequest.getHeader("x-forwarded-for");
if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = httpServletRequest.getHeader("Proxy-Client-IP");
}
if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = httpServletRequest.getHeader("WL-Proxy-Client-IP");
}
if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = httpServletRequest.getRemoteAddr();
}
System.out.println("ip:="+ip);</p>