JavaWeb获取客户端IP地址

来源：互联网发布：电气接线仿真软件编辑：程序博客网时间：2024/05/21 07:47

1. 一种参考方式如下：

在反向代理( Nginx )上配置，增加Real-IP字段：

location /{ ... proxy_set_header Real-IP $remote_addr; ...}

2. 业务系统中，获取来源IP的代码如下(Java示例)：

@SuppressWarnings("unchecked") public static ClientIps getClientIpAddr(HttpServletRequest request) {    // 获取真实ip    String ip = request.getHeader("real-ip");    if (StringUtils.isBlank(ip) || ("unknown".equalsIgnoreCase(ip.trim()))) {        ip = request.getHeader("remote-host");    }    if (StringUtils.isBlank(ip) || ("unknown".equalsIgnoreCase(ip.trim()))) {        ip = request.getRemoteAddr();    }    ClientIps clientIps = new ClientIps();    clientIps.setTrueIp(StringUtils.trimToEmpty(ip));    // 获取代理ip    ip = request.getHeader("x-forwarded-for");    StringBuilder proxyIps = new StringBuilder();    if (StringUtils.isNotBlank(ip) && (StringUtils.contains(ip, ","))) {        String temp = StringUtils.substringBeforeLast(ip, ",");        if (StringUtils.isNotBlank(temp)) {            proxyIps.append("x-forwarded-for:");            proxyIps.append(temp);            proxyIps.append("\n");    }}

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