图1
1、在更新Hueman Addons时发生了错误：下载失败。 cURL error 18: transfer closed with 2118455 bytes remaining to read。如图1
2、在浏览器中打开插件网址：https://downloads.wordpress.org/plugin/hueman-addons.2.3.0.zip 。下载插件成功。其大小为 2.01 MB。如图2
3、在本地 Windows 10 中执行命令：curl https://downloads.wordpress.org/plugin/hueman-addons.2.3.0.zip 。下载成功。
PS E:\Develop> curl https://downloads.wordpress.org/plugin/hueman-addons.2.3.0.zip
StatusCode : 200
StatusDescription : OK
Content : {80, 75, 3, 4...}
RawContent : HTTP/1.1 200 OK
Connection: keep-alive
Content-Disposition: attachment; filename=hueman-addons.2.3.0.zip
X-Frame-Options: SAMEORIGIN
X-nc: MISS ord 3
Accept-Ranges: bytes
Content-Length: 2118455...
Headers : {[Connection, keep-alive], [Content-Disposition, attachment; filename=hueman-addons.2.3.0.zip], [X-
Frame-Options, SAMEORIGIN], [X-nc, MISS ord 3]...}
RawContentLength : 2118455
4、在生产服务器 CentOS 7 中，下载 hueman-addons.2.3.0.zip 并解压至目录：/data/wwwroot/www.shuijingwanwq.com/wp-content/plugins/hueman-addons 。如图3
[root@iZ23wv7v5ggZ ~]# ls auto_fdisk.sh oneinstack oneinstack-full.tar.gz [root@iZ23wv7v5ggZ ~]# wget -c https://downloads.wordpress.org/plugin/hueman-addons.2.3.0.zip --2021-02-19 11:12:38-- https://downloads.wordpress.org/plugin/hueman-addons.2.3.0.zip Resolving downloads.wordpress.org (downloads.wordpress.org)... 198.143.164.250 Connecting to downloads.wordpress.org (downloads.wordpress.org)|198.143.164.250|:443... connected. HTTP request sent, awaiting response... 200 OK Length: 2118455 (2.0M) [application/octet-stream] Saving to: ‘hueman-addons.2.3.0.zip’ 100%[======================================>] 2,118,455 67.9KB/s in 31s 2021-02-19 11:13:10 (66.3 KB/s) - ‘hueman-addons.2.3.0.zip’ saved [2118455/2118455] [root@iZ23wv7v5ggZ ~]# ls auto_fdisk.sh hueman-addons.2.3.0.zip oneinstack oneinstack-full.tar.gz [root@iZ23wv7v5ggZ ~]# cd .. [root@iZ23wv7v5ggZ /]# ls bin data etc lib lost+found mnt proc run srv sys usr boot dev home lib64 media opt root sbin swapfile tmp var [root@iZ23wv7v5ggZ /]# cd data [root@iZ23wv7v5ggZ data]# ls lost+found wwwlogs wwwroot [root@iZ23wv7v5ggZ data]# cd wwwroot/ [root@iZ23wv7v5ggZ wwwroot]# ls default www.shuijingwanwq.com [root@iZ23wv7v5ggZ wwwroot]# cd www.shuijingwanwq.com/ [root@iZ23wv7v5ggZ www.shuijingwanwq.com]# ls 1311aeca4e764c48afb3665fb02f3537.html readme.html wp-cron.php Adobe AIR_3.6.exe report wp-includes baidu_verify_U5mywj2jTv.html root.txt wp-links-opml.php bdunion.txt webscan_360_cn.html wp-load.php google6ef993c34e9a65a9.html wp-activate.php wp-login.php hosts wp-admin wp-mail.php index.php wp-blog-header.php wp-settings.php license.txt wp-comments-post.php wp-signup.php logreport wp-config.php wp-trackback.php nbproject wp-config-sample.php xmlrpc.php nginx-1.10.1.zip wp-content [root@iZ23wv7v5ggZ www.shuijingwanwq.com]# cd wp-content/ [root@iZ23wv7v5ggZ wp-content]# ls backupwordpress-e4a504c79e-backups plugins upgrade index.php temp-write-test-1565457605 uploads languages themes [root@iZ23wv7v5ggZ wp-content]# cd plugins/ [root@iZ23wv7v5ggZ plugins]# ls akismet index.php backupwordpress kill-429 classic-editor light contact-form-7 nimble-builder disable-google-fonts regenerate-thumbnails golang-brush-for-syntaxhighlighter-evolved syntaxhighlighter gutenberg wp-cumulus hello-dolly wp-pagenavi hueman-addons [root@iZ23wv7v5ggZ plugins]# cd hueman-addons/ [root@iZ23wv7v5ggZ hueman-addons]# ls addons contextualizer ha-fire.php inc lang license.txt readme.txt [root@iZ23wv7v5ggZ hueman-addons]# rm -rf * [root@iZ23wv7v5ggZ hueman-addons]# ls [root@iZ23wv7v5ggZ hueman-addons]# cp ~/hueman-addons.2.3.0.zip hueman-addons.2.3.0.zip [root@iZ23wv7v5ggZ hueman-addons]# ls hueman-addons.2.3.0.zip [root@iZ23wv7v5ggZ hueman-addons]# pwd /data/wwwroot/www.shuijingwanwq.com/wp-content/plugins/hueman-addons [root@iZ23wv7v5ggZ hueman-addons]# ls hueman-addons.2.3.0.zip [root@iZ23wv7v5ggZ hueman-addons]# unzip -oq hueman-addons.2.3.0.zip -d /data/wwwroot/www.shuijingwanwq.com/wp-content/plugins [root@iZ23wv7v5ggZ hueman-addons]# ls addons ha-fire.php inc license.txt contextualizer hueman-addons.2.3.0.zip lang readme.txt [root@iZ23wv7v5ggZ hueman-addons]# rm -rf hueman-addons.2.3.0.zip [root@iZ23wv7v5ggZ hueman-addons]# ls addons contextualizer ha-fire.php inc lang license.txt readme.txt [root@iZ23wv7v5ggZ hueman-addons]#
5、在插件页面，Hueman Addons 已经升级至版本：2.3.0。如图4
6、后续有更为充裕的时间后，或者说下一次升级 Hueman Addons 时，再来从根源上解决此问题，实现在后台的自动更新。
