request nginx 透传获取真实的ip

nginx.conf配置:

location / {   
     proxy_pass http://127.0.0.1:8080/myweb/;  
     proxy_redirect    off;  
     proxy_set_header  Host             $host;  
     proxy_set_header  X-Real-IP        $remote_addr;  
     proxy_set_header  X-Forwarded-For  $proxy_add_x_forwarded_for;  
}  

后端获取方式:

/*** 
 * 获取客户端IP地址;这里通过了Nginx获取;X-Real-IP, 
 * @param request 
 * @return 
 */  
public static String getClientIP(HttpServletRequest request) {  
    String fromSource = "X-Real-IP";  
    String ip = request.getHeader("X-Real-IP");  
    if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {  
        ip = request.getHeader("X-Forwarded-For");  
        fromSource = "X-Forwarded-For";  
    }  
    if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {  
        ip = request.getHeader("Proxy-Client-IP");  
        fromSource = "Proxy-Client-IP";  
    }  
    if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {  
        ip = request.getHeader("WL-Proxy-Client-IP");  
        fromSource = "WL-Proxy-Client-IP";  
    }  
    if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {  
        ip = request.getRemoteAddr();  
        fromSource = "request.getRemoteAddr";  
    }  
    appLog.info("App Client IP: "+ip+", fromSource: "+fromSource);  
    return ip;  
}  

这样就不会一直获取的是服务器的Ip了。

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