Java获取真实IP

Java获取真实IP

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;
}

public String getRemortIP(HttpServletRequest request) {
    if (request.getHeader("x-forwarded-for" ) == null) {
        return request.getRemoteAddr();
    }
    return request.getHeader("x-forwarded-for" );
}

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