大约有 240 项符合查询结果（耗时：0.0231秒） [XML]
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
...the other, follow the following advices:
Verify and test them with ping.
Refresh DNS or use IP address in JDBC URL instead.
Verify it based on my.cnf of MySQL DB.
Start the DB.
Verify if mysqld is started without the --skip-networking option.
Restart the DB and fix your code accord...
Does Android support near real time push notification?
... open. It doesn't poll, although it does have to occasionally send a small ping message down the connection to keep it alive.
– dalelane
Feb 1 '11 at 23:08
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How do I determine if a port is open on a Windows server? [closed]
...t on a server, but the port may be closed by a firewall. Is there a way to ping out or in, on a specific port, to see if it is open?
...
How do I make a batch file terminate upon encountering an error?
...e this .cmd file:
@echo off
echo Starting very complicated batch file...
ping -invalid-arg || goto :error
echo OH noes, this shouldn't have succeeded.
goto :EOF
:error
echo Failed with error #%errorlevel%.
exit /b %errorlevel%
See also question about exiting batch file subroutine.
...
How can I check if an argument is defined when starting/calling a batch file?
...
:end
pause
✨ other stuff..✨
■ in %~1 - the ~ removes any wrapping " or '.
■ in %~s1 - the s makes the path be DOS 8.3 naming, which is a nice trick to avoid spaces in file-name while checking stuff (and this way no need to wrap the resource with more "s.
■ the ["%~1"]==[""] "can no...
TransformXml task could not be loaded from Microsoft.Web.Publishing.Tasks.dll
... it, and works perfectly. Thank you anyway! if you make it an answer, just ping me and I will vote.
– Tengiz
Jun 8 '16 at 18:18
...
What's the key difference between HTML 4 and HTML 5?
...endar date-pickers), and browser-supported form validation will make developing web applications much simpler for the developers, and make them much faster for the users (since many things will be supported natively, rather than hacked in via javascript).
Improved Element Semantics
There are many ...
Doing HTTP requests FROM Laravel to an external API
.... How do I start? I did research on Mr Google but I can't find anything helping.
7 Answers
...
搭建高可用mongodb集群（三）—— 深入副本集内部机制 - 大数据 & AI - 清...
...mongodb节点会向副本集中的其他节点每两秒就会发送一次pings包，如果其他节点在10秒钟之内没有返回就标示为不能访问。每个节点内部都会维护一个状态映射表，表明当前每个节点是什么角色、日志时间戳等关键信息。如果是主...
What's the fastest way to delete a large folder in Windows?
... answered May 23 '09 at 14:12
d9pingd9ping
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