Syntax: client_max_body_size size;
 
Default: client_max_body_size 1m;
 
Context: http, server, location
 
Sets the maximum allowed size of the client request body, specified in the “Content-Length” request header field. If the size in a request exceeds the configured value, the 413 (Request Entity Too Large) error is returned to the client. Please be aware that browsers cannot correctly display this error. Setting size to 0 disables checking of client request body size.

server {
    listen       80;
    server_name  localhost;
    #charset koi8-r;
 
    # client_max_body_size 用來(lái)修改允許客戶端上傳文件的大小。默認(rèn)為1m，如果設(shè)置為0，表示上傳文件大小不受限制。
    # 可以在以下模塊設(shè)置: http, server, location 
    client_max_body_size 10m;
 
    # 訪問(wèn) / 網(wǎng)站跟目錄返回的內(nèi)容
    location / {
        root   /usr/share/nginx/html;
        index  index.html index.htm;
    }
    
    ...
}

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;
 
    # 是否開啟壓縮功能
    #gzip  on;
 
    # client_max_body_size 用來(lái)修改允許客戶端上傳文件的大小。默認(rèn)為1m，如果設(shè)置為0，表示上傳文件大小不受限制。
    # 可以在以下模塊設(shè)置: http, server, location 
    client_max_body_size 10m;
    
    
 
 
    # 引用配置文件
    include /etc/nginx/conf.d/*.conf;
}