nginx代理后,获取request的ip

应用程序部署上线,一般都会用nginx之类的来进行反向代理,而不是直接访问tomcat之类的容器.

这时候如果用平时的获取ip的代码,就只会获取到nginx所在服务器的ip, 就失去了本身的意义.

今天就来配置下 nginx+tomcat 后,  程序获取ip和 tomcat的访问日志localhost_access_log 获取ip. 

1.首先要在nginx中加个配置,即把用户ip保存下来

在nginx的配置文件中增加 

proxy_set_header X-real-ip           $remote_addr;

各位置要注意, 可以放在 location / 中, 如果你配置了.do, .action的转发, 那就要放在 .do,.action的配置中

2.修改程序中获取ip的方法,先取 X-real-ip的值

    private String getIpAddr(HttpServletRequest request) {
        String ip = request.getHeader("X-real-ip");//先从nginx自定义配置获取
        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("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;
    }

3.修改tomcat的日志配置,记录访问的来源ip

在server.xml中,修改AccessLogValve的配置如下

<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
               prefix="localhost_access_log." suffix=".txt"
               pattern="%{yyyy-MM-dd HH:mm:ss}t %{X-real-ip}i "%r" %s %b %{User-Agent}i" />

 

转载于:https://www.cnblogs.com/azhqiang/p/10231853.html