一般情況下 getRemoteAddr()是可以正常使用的，代碼如下：

public String getIpAdress(HttpServletRequest request) {

           ip = request.getRemoteAddr(); 

        return ip;  

}

但是針對IP是否使用代理訪問進行處理，如下：

    public String getIpAdress() {
        RequestAttributes requestAttributes = RequestContextHolder.getRequestAttributes();
        ServletRequestAttributes sra 
 
= (ServletRequestAttributes) requestAttributes;
        HttpServletRequest request = sra.getRequest();
        //針對IP是否使用代理訪問進行處理
        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.getHeader("HTTP_CLIENT_IP"); 
        } 
        
 
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { 
            ip = request.getHeader("HTTP_X_FORWARDED_FOR"); 
        } 
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { 
            ip = request.getRemoteAddr(); 
        } 
        return ip;
    }

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