413 Request Entity Too Large

网上找到是因为设置的问题，想到自己最终是布署在iis上的,找到如下步骤:

1. Launch “Internet Information Services (IIS) Manager”
2. Select the site that you are hosting your web application under it.
3. In the Features section, double click “Configuration Editor”
4. Under “Section” select: system.webServer  then serverRuntime
5. Modify the “uploadReadAheadSize” section to be like 20MB (the value there is in Bytes)
6. Click Apply

按以上步骤设置后，无效,后突然想到中间用了nginx转发,查看nginx日志,找到错误信息

client intended to send too large body: 3127719 bytes

修改配置(增加 client_max_body_size 20m;)

        location / {
            root   html;
            index  index.html index.htm;
			proxy_pass    http://xxxxxxxserver;
			client_max_body_size 20m;
        }

　　

重启nginx,问题解决