大约有 30,000 项符合查询结果（耗时：0.0522秒） [XML]
What is the difference between ApplicationContext and WebApplicationContext in Spring MVC?
...ationContext is an extension of the plain ApplicationContext that has some extra features necessary for web applications. It differs from a normal ApplicationContext in that it is capable of resolving themes (see Using themes), and that it knows which Servlet it is associated with (by having a link ...
How to use auto-layout to move other views when a view is hidden?
...
It is possible, but you'll have to do a little extra work. There are a couple conceptual things to get out of the way first:
Hidden views, even though they don't draw, still participate in Auto Layout and usually retain their frames, leaving other related views in their...
Change Placeholder Text using jQuery
..."#yourtextboxid").attr("placeholder", "variable");
where, if variable is string then you can use like above, if it is variable replace it with the name like "variable" with out double quotes.
eg: $("#youtextboxid").attr("placeholder", variable);
it will work.
...
How can I save an image to the camera roll?
...ss the photo library:
<key>NSCameraUsageDescription</key>
<string>Enable camera access to take photos.</string>
<key>NSPhotoLibraryUsageDescription</key>
<string>Enable photo library access to select a photo from your library.</string>
<key>NSPh...
How can I get the SQL of a PreparedStatement?
...
If you're using java.sql.PreparedStatement a simple .toString() on the preparedStatement will include the generated SQL I've verified this in 1.8.0_60
– Pr0n
Jan 23 '16 at 23:09
...
Proper way to return JSON using node or Express
...
That response is a string too, if you want to send the response prettified, for some awkward reason, you could use something like JSON.stringify(anObject, null, 3)
It's important that you set the Content-Type header to application/json, too.
va...
How to put spacing between TBODY elements
...
well if you're going to be adding extra markup, why not just put a class on the first row of each tbody?
– nickf
Nov 17 '08 at 23:28
...
I need to generate uuid for my rails application. What are the options(gems) I have? [duplicate]
...:contacts, id: false do |t|
t.column :id, :uuid, null:false
t.string :name
t.string :mobile_no
t.timestamps
end
end
end
Final how to use into your model
class Contact < ActiveRecord::Base
usesguid
end
This will help you to configure UUID for your rails ap...
Any reason to prefer getClass() over instanceof when generating .equals()?
...return super.equals(object) when !(object instanceof Dog) but checking the extra fields when it is a Dog instance wouldn't violate symmetry but would violate transitivity)
– Shadow Man
Jul 16 '19 at 0:16
...
Windows batch file file download from a URL
...ell comes with modern versions of Windows so you don't have to install any extra stuff on the computer. I learned how to do it by reading this page:
http://teusje.wordpress.com/2011/02/19/download-file-with-powershell/
The code was:
$webclient = New-Object System.Net.WebClient
$url = "http://www...