javaweb-java根據ip判斷網絡連接情況（i除Java執行ping命令和InetAddress這兩種方式）

java根據ip判斷網絡連接情況（i除Java執行ping命令和InetAddress這兩種方式）

  因為ava執行ping命令和InetAddress這兩種方式執行速度太慢了，有沒有更好的解決方法？？？  

最佳回答：

獲得客戶端真實IP地址的方法一：
public String getRemortIP(HttpServletRequest request) {
if (request.getHeader("x-forwarded-for") == null) {
return request.getRemoteAddr();
}
return request.getHeader("x-forwarded-for");
} 　　
獲得客戶端真實IP地址的方法二：
public 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();
}
return ip;
}