Question

nginx做反向代理负载均衡 Java怎么获取后端服务器获取用户IP

Answer 1

String ip = request.getHeader("x-forwarded-for");
if (ip == null) {
    ip = request.getHeader("X-Real-IP");
}
if (ip == null) {
    ip = request.getRemoteAddr();
}

nginx里面要设置

proxy_set_header X-Real-IP $remote_addr;
proxy_set_header x-forwarded-for $proxy_add_x_forwarded_for;