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C# How can I check if a URL exists/is valid?
...
// fine, no content downloaded
string s1 = client.DownloadString("http://google.com");
// throws 404
string s2 = client.DownloadString("http://google.com/silly");
}
You would try/catch around the DownloadString to check for errors; no error? It exists...
With C# 2.0 (VS2005):
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Should MySQL have its timezone set to UTC?
Follow up question of
https://serverfault.com/questions/191331/should-servers-have-their-timezone-set-to-gmt-utc
4 Answers...
Best way to convert strings to symbols in hash
...h as String and as Symbols:
my_hash.with_indifferent_access
see also:
http://api.rubyonrails.org/classes/ActiveSupport/HashWithIndifferentAccess.html
Or you can use the awesome "Facets of Ruby" Gem, which contains a lot of extensions to Ruby Core and Standard Library classes.
require 'fac...
How to specify the private SSH-key to use when executing shell command on Git?
...ut I want to specify a private SSH-key to use when executing a shell (git) command from the local computer.
29 Answers
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Loadbalancing web sockets
... a 2 core, 4GB RAM VM.
Also note that you can do L7 load-balancing on the HTTP path announced during the initial WebSocket handshake. In that case the load balancer has to maintain state (which source IP-port pair is going to which backend node). It will probably scale to millions of connections ne...
Can you center a Button in RelativeLayout?
..."
Exactly like this, it works for me:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ff0000">
<Button
andro...
Spring RestTemplate timeout
... @ConfigurationProperties(prefix = "custom.rest.connection")
public HttpComponentsClientHttpRequestFactory customHttpRequestFactory()
{
return new HttpComponentsClientHttpRequestFactory();
}
@Bean
public RestTemplate customRestTemplate()
{
return new Rest...
How do you find the row count for all your tables in Postgres
I'm looking for a way to find the row count for all my tables in Postgres. I know I can do this one table at a time with:
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Break a previous commit into multiple commits
...ng a bunch of funky work on a new branch, is it possible to break a single commit into a few different commits after it's been committed to the local repository?
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理解Python的 with 语句 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
理解Python的 with 语句With语句是什么？Python’s with statement provides a very convenient way of dealing with the situation where you
With语句是什么？
Python’s with statement provides a very convenient way of dealing with the situation where you have to do a setup an...