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How to respond with HTTP 400 error in a Spring MVC @ResponseBody method returning String?
I'm using Spring MVC for a simple JSON API, with @ResponseBody based approach like the following. (I already have a service layer producing JSON directly.)
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Is there any way I can define a variable in LaTeX?
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edited Jan 13 at 16:20
Werner
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Reading my own Jar's Manifest
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You can do one of two things:
Call getResources() and iterate through the returned collection of URLs, reading them as manifests until you find yours:
Enumeration<URL> resources = getClass().getClassLoader()
.getResources("META-INF/MANIFEST.MF");
while (resources.hasMor...
convert_tz returns null
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edited Sep 16 at 14:17
answered Jan 22 '13 at 8:37
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Get time in milliseconds using C#
... the time in milliseconds. By time, I mean a number that is never equal to itself, and is always 1000 numbers bigger than it was a second ago. I've tried converting DateTime.Now to a TimeSpan and getting the TotalMilliseconds from that... but I've heard it isn't perfectly accurate.
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Using MVC HtmlHelper extensions from Razor declarative views
...ook at Marcind's answer to this question. What you're experiencing is a limitation of putting declarative views in the App_Code folder.
Putting your helpers in App_Code works
but has certain limitations that
impact certain MVC scenarios (for
example: no access to standard MVC
Html. helpe...
Get list of a class' instance methods
...ant TestClass.instance_methods, unless you're interested in what TestClass itself can do.
class TestClass
def method1
end
def method2
end
def method3
end
end
TestClass.methods.grep(/method1/) # => []
TestClass.instance_methods.grep(/method1/) # => ["method1"]
TestClass.methods....
Check if a string contains a number
...ke to be a numberless string.
I need to enter a string and check to see if it contains any numbers and if it does reject it.
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Naming conventions for abstract classes
...was to add the "Base" suffix to an abstract class to obviate the fact that it was abstract. Hence, we have classes like System.Web.Hosting.VirtualFileBase , System.Configuration.ConfigurationValidatorBase , System.Windows.Forms.ButtonBase , and, of course, System.Collections.CollectionBase .
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How do I see if Wi-Fi is connected on Android?
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You should be able to use the ConnectivityManager to get the state of the Wi-Fi adapter. From there you can check if it is connected or even available.
ConnectivityManager connManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
Network...