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When using Spring Security, what is the proper way to obtain current username (i.e. SecurityContext)
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If you are using Spring 3, the easiest way is:
@RequestMapping(method = RequestMethod.GET)
public ModelAndView showResults(final HttpServletRequest request, Principal principal) {
final String currentUser = principal.getName();
}
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Print a list in reverse order with range()?
...parameters. range(start, stop, step)
For example, to generate a list [5,4,3,2,1,0], you can use the following:
range(5, -1, -1)
It may be less intuitive but as the comments mention, this is more efficient and the right usage of range for reversed list.
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COALESCE Function in TSQL
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answered Nov 13 '12 at 18:40
Bill MeliusBill Melius
1,03377 silver badges88 bronze badges
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Simplest code for array intersection in javascript
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35 Answers
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How is CountDownLatch used in Java Multithreading?
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edited Apr 4 '18 at 19:13
answered Jul 24 '13 at 7:06
Nik...
What is IP address '::1'?
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edited Mar 27 '13 at 21:25
answered Jan 6 '11 at 3:18
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Get all non-unique values (i.e.: duplicate/more than one occurrence) in an array
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Android ViewPager with bottom dots
I want to add 3 bottom dots to my ViewPager, like this.
10 Answers
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multiple prints on the same line in Python
...e that there will be an extra space at the end of the output).
The Python 3 Solution
Since the above does not work in Python 3, you can do this instead (again, without importing sys):
def install_xxx():
print("Installing XXX... ", end="", flush=True)
install_xxx()
print("[DONE]")
The p...
What is the default scope of a method in Java?
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answered Apr 3 '09 at 17:01
Esko LuontolaEsko Luontola
70.3k1313 gold badges106106 silver badges124124 bronze badges
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