Nginx 出现504 Gateway Time-out的解决方法

nginx+tomcat
后端为tomcat，nginx代理报504超时错误。

问题处理：
1、修改/etc/nginx/nginx.conf，添加如下信息：

http {
    include       /etc/nginx/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  /var/log/nginx/access.log  main;

    sendfile on;
    #tcp_nopush on;

    keepalive_timeout 65;

    #gzip on;

    include /etc/nginx/conf.d/*.conf;
    #用于tomcat反向代理,解决nginx 504错误 
    proxy_connect_timeout 300; #单位秒 
    proxy_send_timeout 300; #单位秒 
    proxy_read_timeout 300; #单位秒 
    proxy_buffer_size 16k; 
    proxy_buffers 4 64k; 
    proxy_busy_buffers_size 128k; 
    proxy_temp_file_write_size 128k;
    # ps:以timeout结尾配置项时间要配置大点
}

2、修改server{}，添加如下信息：

location / {
        proxy_pass http://182.61.131.62:33060/;
        proxy_redirect  off;
        proxy_send_timeout 300;
        proxy_read_timeout 300;
        proxy_connect_timeout 300;

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