nginx负载后无法登陆界面无法跳转到主页的问题

这两天一直再试nginx负载 和实现反向代理

配置如下：

#user julong julong;
worker_processes 1; 
error_log /home/julong/tomcat/nginx/logs/error.log; 
#error_log logs/error.log notice; 
#error_log logs/error.log info; 
#pid /home/julong/tomcat/nginx/nginx.pid; 
events { 
use epoll; worker_connections 1024; 
} 
http { 
include mime.types; 
default_type application/octet-stream; 
log_format main '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for"'; #access_log logs/access.log main; 
sendfile on; 
tcp_nopush on; 
#keepalive_timeout 0; keepalive_timeout 65; 
#client_max_body_size 10m; #client_body_buffer_size 128k; 
#proxy_connect_timeout 75; 
#proxy_send_timeout 75; 
#proxy_read_timeout 75; 
proxy_buffer_size 128k; proxy_buffers 32 128k; 
proxy_busy_buffers_size 128k; 
#proxy_temp_file_write_size 64k; gzip on; 
upstream 192.168.1.222 { 
server 192.168.1.222:8080; server 192.168.1.222:8888; } 
server { 
listen 9090; 
server_name localhost; 
#charset koi8-r; 
#access_log logs/host.access.log main; 
#location / { 
#root html; #index index.html index.htm; #} 
location ~ / { 
proxy_pass http://192.168.1.222; 
proxy_set_header HOST $host:$server_port; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_next_upstream error timeout invalid_header http_500 http_502 http_503 http_504; 
}
 #error_page 404 /404.html; 
# redirect server error pages to the static page /50x.html 
# error_page 500 502 503 504 /50x.html; 
location = /50x.html { root html; }
 # proxy the PHP scripts to Apache listening on 127.0.0.1:80 # 
#location ~ \.php$ { 
# proxy_pass http://127.0.0.1; 
#} 
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000 # 
#location ~ \.php$ { 
# root html; 
# fastcgi_pass 127.0.0.1:9000; 
# fastcgi_index index.php; 
# fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name; 
# include fastcgi_params; 
#} 
# deny access to .htaccess files, if Apache's document root 
# concurs with nginx's one 
# 
#location ~ /\.ht { 
# deny all; 
#} } 
# another virtual host using mix of IP-, name-, and port-based configuration # 
#server { 
# listen 8000; 
# listen somename:8080; 
# server_name somename alias another.alias; 
# location / { 
    # root html;
    # index index.html index.htm; 
# } 
#} 
# HTTPS server 
# #server { 
    # listen 443 ssl; 
    # server_name localhost;
    # ssl_certificate cert.pem; 
    # ssl_certificate_key cert.key; 
    # ssl_session_cache shared:SSL:1m; 
    # ssl_session_timeout 5m; 
    # ssl_ciphers HIGH:!aNULL:!MD5;
    # ssl_prefer_server_ciphers on; 
    # location / { 
        # root html; 
        # index index.html index.htm; 
    # }
#}
}

后端使用的是两个tomcat  端口不一样 实现本机负载均衡 和反向代理，一直停在登陆界面无法实现跳转重定向 ，登陆使用的是ajax请求  最后找了好多例子各种尝试，最后竟然是没有在

upstream  中添加 一个配置信息 ip_hash 即可解决，此坑比较坑 ，之前配置过一个好的 ，最近又要用 就配置 最后发现自己少了个这个配置，浪费了几天时间 哎....