获取IP地址

public 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.getRemoteAddr();
}
return ip;
}

nginx:

    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For  $proxy_add_x_forwarded_for;
    proxy_pass http://tomcat_server;

tomcat应用工程(网站程序配置)

用 String ip = request.getHeader(“X-Real-IP”);替代String ip = request.getRemoteAddr();
这是程序这款的了