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构建高并发高可用的电商平台架构实践 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...决方案，softcommit无需进行提交索引操作，就可以搜素到最新对索引的变更，不过对索引的变更并没有sync commit到硬盘存储上，若发生意外导致程序非正常结束，未commit的数据会丢失，因此需要定时的进行commit操作。
平台中对数...
Integrate ZXing in Android Studio
...ides the zxing android library project as an AAR archive.
https://github.com/journeyapps/zxing-android-embedded
All you have to do is add this to your build.gradle
repositories {
jcenter()
}
dependencies {
implementation 'com.journeyapps:zxing-android-embedded:3.0.2@aar'
implementa...
How to get an element by its href in jquery?
...attribute selector for that.
var linksToGoogle = $('a[href="http://google.com"]');
Alternatively, if your interest is rather links starting with a certain URL, use the attribute-starts-with selector:
var allLinksToGoogle = $('a[href^="http://google.com"]');
...
RRSet of type CNAME with DNS name foo.com. is not permitted at apex in zone bar.com
I own foo.com and bar.com . I am managing both in Route53. foo.com hosts my site, and I'd like to direct traffic from bar.com to foo.com . I tried to set up a CNAME record for bar.com pointing to foo.com , but I got the error message:
...
Nginx Different Domains on Same IP
...
They should be
server {
listen 80;
server_name www.domain1.com;
root /var/www/domain1;
}
server {
listen 80;
server_name www.domain2.com;
root /var/www/domain2;
}
Note, I have only included the relevant lines. Everything else looked okay but I just deleted it...
Learning Ant path style
...tches the regexp [a-z]+ as a path variable named "spring"
Some examples:
com/t?st.jsp - matches com/test.jsp but also com/tast.jsp or com/txst.jsp
com/*.jsp - matches all .jsp files in the com directory
com/**/test.jsp - matches all test.jsp files underneath the com path
org/springframework/**/*.j...
What does [STAThread] do?
...readAttribute is essentially a requirement for the Windows message pump to communicate with COM components. Although core Windows Forms does not use COM, many components of the OS such as system dialogs do use this technology.
MSDN explains the reason in slightly more detail:
STAThreadAttribute...
Java packages com and org
What are the meaning of the packages org and com in Java?
4 Answers
4
...
How to sort a Ruby Hash by number value?
... your example
Best way in any case (as per Mladen) is:
metrics = {"sitea.com" => 745, "siteb.com" => 9, "sitec.com" => 10 }
metrics.sort_by {|_key, value| value}
# ==> [["siteb.com", 9], ["sitec.com", 10], ["sitea.com", 745]]
If you need a hash as a result, you can use to_h (in Rub...
Android Studio: Plugin with id 'android-library' not found
...ng to get ActionBarSherlock to work and having some issue. One issue I've come across is the following message when trying to build it:
...