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Force Java timezone as GMT/UTC
...Cal = Calendar.getInstance(TimeZone.getTimeZone("GMT"));
PreparedStatement ps = conn.createPreparedStatement("update ...");
ps.setDate("DateColumn", dateValue, tzCal);
// Other assignments
ps.executeUpdate();
These will ensure that the value stored in the database is consistent when the database c...
How can I extract embedded fonts from a PDF as valid font files?
...y they include just the subset of glyphs used in the document.
Using pdftops
One of the most frequently used methods to do this on *nix systems consists of the following steps:
Convert the PDF to PostScript, for example by using XPDF's pdftops (on Windows: pdftops.exe helper program.
Now fonts wil...
Configure Flask dev server to be visible across the network
...--host=0.0.0.0 This tells your operating system to listen on
all public IPs.
Reference: http://flask.pocoo.org/docs/0.11/quickstart/
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Why should I prefer to use member initialization lists?
...rators
variable = a;
}
};
Here compiler follows following steps to create an object of type MyClass
1. Type’s constructor is called first for “a”.
2. The assignment operator of “Type” is called inside body of MyClass() constructor to assign
variable = a;
And t...
网站伪静态Rewrite重写中文路径时乱码 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...管是Apache还是ISAPI_Rewrite，URL均识别的是UTF8编码的。
PS：字符编码转换过程： gbk、gb2312 >> uinicode >> utf8
第一，当在浏览器地址栏输入中文时（浏览器会自动转换）：
1) url路径：utf8 格式
2) url参数：gbk 格式
3) resquest.Q...
How do I get the difference between two Dates in JavaScript?
...e JsFiddle DEMO
var date1 = new Date();
var date2 = new Date("2025/07/30 21:59:00");
//Customise date2 for your required future time
showDiff();
function showDiff(date1, date2){
var diff = (date2 - date1)/1000;
diff = Math.abs(Math.floor(diff));
var days = Math.f...
How to restart a rails server on Heroku?
...ias by adding it to your .bashrc or .bash_aliases file as described at:
https://askubuntu.com/questions/17536/how-do-i-create-a-permanent-bash-alias and
Creating permanent executable aliases
Then you can just type hra app_name
You can restart a specific remote, e.g. "staging" with:
heroku restart ...
Timer function to provide time in nano seconds using C++
...here is more on QPC
Apparently there is a known issue with QPC on some chipsets, so you may want to make sure you do not have those chipset. Additionally some dual core AMDs may also cause a problem. See the second post by sebbbi, where he states:
QueryPerformanceCounter() and
QueryPerformanc...
Generating matplotlib graphs without a running X server [duplicate]
...ig('temp.png')
You don't have to use the Agg backend, as well. The pdf, ps, svg, agg, cairo, and gdk backends can all be used without an X-server. However, only the Agg backend will be built by default (I think?), so there's a good chance that the other backends may not be enabled on your partic...
Adding event listeners to dynamically added elements using jQuery [duplicate]
...handler, like reference to a function or anonymous function function() {}
PS: if you know the particular node you're adding dynamic elements to - you could specify it instead of document.
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