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  • java获取客户端ip地址

    public static String getIpAddr(HttpServletRequest request) {
    String ipAddress = null;
    ipAddress = request.getHeader("x-forwarded-for");
    if (ipAddress == null || ipAddress.length() == 0
    || "unknown".equalsIgnoreCase(ipAddress)) {
    ipAddress = request.getHeader("Proxy-Client-IP");
    }
    if (ipAddress == null || ipAddress.length() == 0
    || "unknown".equalsIgnoreCase(ipAddress)) {
    ipAddress = request.getHeader("WL-Proxy-Client-IP");
    }
    if (ipAddress == null || ipAddress.length() == 0
    || "unknown".equalsIgnoreCase(ipAddress)) {
    ipAddress = request.getRemoteAddr();
    if (ipAddress.equals("127.0.0.1")) {
    //根据网卡取本机配置的IP
    InetAddress inet = null;
    try {
    inet = InetAddress.getLocalHost();
    } catch (UnknownHostException e) {
    e.printStackTrace();
    }
    ipAddress = inet.getHostAddress();
    }
    }
    //对于通过多个代理的情况,第一个IP为客户端真实IP,多个IP按照','分割
    if (ipAddress != null && ipAddress.length() > 15) { //"***.***.***.***".length() = 15
    if (ipAddress.indexOf(",") > 0) {
    ipAddress = ipAddress.substring(0, ipAddress.indexOf(","));
    }
    }
    return ipAddress;
    }

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  • 原文地址:https://www.cnblogs.com/snow365/p/6165366.html
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