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【ClientSocketAI2Ext】拓展报错信息如何自定义展示？ - App Inventor 2 拓...
目前该拓展报错（比如IP或端口不通）后，直接App崩溃退出，如下：
如何自定义并友好地展示报错信息呢？
一般地，使用屏幕1.出现错误 这个事件：
但是经过测试，此方式无效，系统还是按照自己的错误提示显示，并...
有没有其他方式 在app上接收jpeg数据流变成视频？ - App应用开发 - 清泛IT...
...bViewer 直接加载 MJPEG URL ⭐
最简单有效，适合 ESP32-CAM、IP 摄像头等场景：
组件: WebViewer1
属性: HomeURL = "http://192.168.4.1/stream"
EnableJavaScript = True
原理：MJPEG 本质是服务器连续发送 JPEG 帧，WebViewer 自动渲染成视频
其...
I forgot the password I entered during postgres installation
...rd, a failed login with PEER authentication and a successful login using a TCP connection.
# sudo -u postgres psql
could not change directory to "/root"
psql (9.1.11)
Type "help" for help.
postgres=# \password
Enter new password:
Enter it again:
postgres=# \q
Failing:
# psql -U postgres -W
Pass...
Script to get the HTTP status code of a list of urls?
...ill notice that this uses one curl process per URL, which imposes fork and TCP connection penalties. It would be faster if multiple URLs were combined in a single curl, but there isn't space to write out the monsterous repetition of options that curl requires to do this.)
...
Linux下安装项目管理工具Redmine - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...My account里可以修改成其它语言。
启动WEB服务
# ruby script/server webrick -e production
或# ruby /usr/local/redmine/script/server webrick -e production
停止web服务方法：在当前启动窗口按ctrl+C
访问http://ip:3000/
初始用户名/密码：admin/admin
这...
Stop execution of Ruby script
...the PID of rails server and kill it.
and also you can do it with lsof -wi tcp:3000 in case you didnt start the server on another port otherwise you should change the port 3000
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How can one check to see if a remote file exists using PHP?
...close($ch);
Anyway, you only save the cost of the HTTP transfer, not the TCP connection establishment and closing. And being favicons small, you might not see much improvement.
Caching the result locally seems a good idea if it turns out to be too slow.
HEAD checks the time of the file, and retur...
Can't connect to local MySQL server through socket homebrew
...
This helped me to force the mysql client to use the TCP socket, as I'm running an SSH tunnel on localhost to my remote MySQL DB.
– Iow
Oct 18 '19 at 9:38
...
How can a web application send push notifications to iOS devices? [closed]
...many complications (apple developer certificates, push packages, low-level TCP connection to APNs).
If you want to implement the push notifications by yourself start with these tutorials:
Push API: Push Notifications on the Open Web
Apple Push Notification system: Configuring Safari Push Notific...
Is proprietary code legally safe on bitbucket or github? [closed]
... answered Sep 21 '10 at 16:51
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