nginx域名配置和springmvc的redirect跳转的问题

nginx配置了个域名,如下边的service，项目名称是vr。

server {
        listen       80;
        server_name  con.testcom;
        access_log  /www/logs/con.test.com.log  main;
        error_log /www/logs/con.test.com.erro  debug;
        client_max_body_size 500m;
        location / {
                proxy_pass http://vr-nginx/vr/;


                proxy_set_header Host $host;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header REMOTE-HOST $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        }
    }

在使用controller中return "redirect:/login"; 返回的con.test.com/vr/login 这样访问是404，正确的返回应该是con.test.com/login。肿么破