如何用Java和jsp获取服务器ip

<%

String ip = request.getHeader("x-forwarded-for")

if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {

ip = request.getHeader("Proxy-Client-IP")

}

if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {

ip = request.getHeader("WL-Proxy-Client-IP")

}

if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {

ip = request.getRemoteAddr()

}

out.print(ip)

%>

jsp获得本机的公网ip可以使用jsp中的request对象中的方法获得IP地址，如下：

/ 获得ip地址

public static String getIpAddr(HttpServletRequest request) {

String ip = request.getHeader("x-forwarded-for")

if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {

ip = request.getHeader("Proxy-Client-IP")

}

if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {

ip = request.getHeader("WL-Proxy-Client-IP")

}

if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {

ip = request.getRemoteAddr()//拿到本地IP地址

}

return ip

}

---