[Java] 取得 Client IP

1. public String getClientIp(HttpServletRequest request){ 
2.    String ip = request.getHeader("X-FORWARDED-FOR"); 
3.  
4.    if (ip == null) { 
5.        ip = request.getRemoteAddr(); 
6.    } 
7.  
8.    return ip; 
9. } 

public String getClientIp(HttpServletRequest request){
    String ip = request.getHeader("X-FORWARDED-FOR");

    if (ip == null) {
        ip = request.getRemoteAddr();
    }

    return ip;
}