使用nginx反向代理获取真实访问ip地址

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于 2021-08-27 15:32:33 发布

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分类专栏： nginx 文章标签： nginx

本文链接：https://blog.youkuaiyun.com/zhangfeiyue12178/article/details/119954326

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本文介绍了如何在nginx配置中设置反向代理，通过`proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;`指令来获取真实访问者的IP地址，并在Java代码中进行处理。

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nginx配置：

访问的location添加：

proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

java代码：

public static 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.getHeader("HTTP_CLIENT_IP");
    }
    if (ip == null || ip.length() == 0 || "unknown".equals