大约有 32,000 项符合查询结果（耗时：0.0447秒） [XML]
How to use Session attributes in Spring-mvc
...ntage:
@session may use more memory in cloud systems it copies session to all nodes, and direct method (1 and 5) has messy approach, it is not good to unit test.
To access session jsp
<%=session.getAttribute("ShoppingCart.prop")%>
in Jstl :
<c:out value="${sessionScope.ShoppingCart.p...
Is there an eval() function in Java? [duplicate]
...to do some math seems like a huge waste. But you're right, it works, especially if efficiency isn't a priority.
– Sasha Chedygov
Apr 9 '10 at 4:21
...
Permanently add a directory to PYTHONPATH?
...n environment variable in your chosen platform and shell, since it's not really a programming question per se.
share
|
improve this answer
|
follow
|
...
In Javascript, how to conditionally add a member to an object?
I would like to create an object with a member added conditionally.
The simple approach is:
22 Answers
...
Python ElementTree module: How to ignore the namespace of XML files to locate matching element when
I want to use the method of "findall" to locate some elements of the source xml file in the ElementTree module.
10 Answers
...
How to use a filter in a controller?
...Prashanth is correct, but there is even easier way of doing the same. Basically instead of injecting the $filter dependency and using awkward syntax of invoking it ($filter('filtername')(arg1,arg2);) one can inject dependency being: filter name plus the Filter suffix.
Taking example from the quest...
Espresso: Thread.sleep( );
...Espresso doing the job without any problems and special 'wait code'. I actually try several different ways, and think that this is one is the most matching Espresso architecture/design.
– Oleksandr Kucherenko
Oct 6 '14 at 8:40
...
How to round up the result of integer division?
...ause it only uses it once, you don't need to store the recordsPerPage specially if it comes from an expensive function to fetch the value from a config file or something.
I.e. this might be inefficient, if config.fetch_value used a database lookup or something:
int pageCount = (records + config.f...
Test if a variable is a list or tuple
... excludes custom sequences, iterators, and other things that you might actually need. However, sometimes you need to behave differently if someone, for instance, passes a string. My preference there would be to explicitly check for str or unicode like so:
import types
isinstance(var, types.String...
Iterating over every two elements in a list
... y in pairwise(l):
print "%d + %d = %d" % (x, y, x + y)
Or, more generally:
from itertools import izip
def grouped(iterable, n):
"s -> (s0,s1,s2,...sn-1), (sn,sn+1,sn+2,...s2n-1), (s2n,s2n+1,s2n+2,...s3n-1), ..."
return izip(*[iter(iterable)]*n)
for x, y in grouped(l, 2):
print...