/**
 * 获取IP地址
 *
 * @param request
 * @return
 */
public static String getIpAddress(HttpServletRequest request) {
    if (request == null) {
        return "unknown";
    }
    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("X-Forwarded-For");
    }
    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("X-Real-IP");
    }

    if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
        ip = request.getRemoteAddr();
    }

    return "0:0:0:0:0:0:0:1".equals(ip) ? "127.0.0.1" : ip;
}

我们在公司的的项目里都是直接 

request.getRemoteAddr();

来获取客户端ip，只是这样是不严谨的吗？会有什么问题吗？