nginx一个端口配置多个不同服务映射

upstream tomcat_server{
server 127.0.0.1:8087;
server 192.168.149.117:8088;
}
server {
listen 8088;
server_name localhost;

#charset koi8-r;

#access_log logs/host.access.log main;
location /qdut/ {
# root html;
# index index.html index.htm;
proxy_set_header Host $http_host;
proxy_pass http://tomcat_server/qdut/;
proxy_set_header X-real-ip $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
location /gtg/ {
# root html;
# index index.html index.htm;
proxy_set_header Host $http_host;
proxy_pass http://127.0.0.1:8089/gtg/;
proxy_set_header X-real-ip $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}

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;
#}
}