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How do you receive a url parameter with a spring controller mapping
...f @ModelAttribute, e.g.
@RequestMapping("/{someID}")
public @ResponseBody int getAttr(@PathVariable(value="someID") String id,
@RequestParam String someAttr) {
}
You can even omit @RequestParam altogether if you choose, and Spring will assume that's what it is:
...
How can I tell when a MySQL table was last updated?
...st SHOW commands like this are simply mapped to Information_schema queries internally, so this answer gives exactly the same data as the answer from Alnitak above. And ajacian81 is correct - it does not work for MySQL's default storage engine, InnoDB.
– Bill Karwin
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Is Big O(logn) log base e?
...algorithm's run-time.
In big-O() notation, constant factors are removed. Converting from one logarithm base to another involves multiplying by a constant factor.
So O(log N) is equivalent to O(log2 N) due to a constant factor.
However, if you can easily typeset log2 N in your answer, doing so is...
How can I display an RTSP video stream in a web page?
...load a single RTSP stream to centrally-hosted streaming server, which will convert your stream to RTMP/MPEG-TS and publish it to Flash players/Set-Top boxes.
Wowza, Erlyvideo, Unreal Media Server, Red5 are your options.
sh...
How to initialize a struct in accordance with C programming language standards
... 89 allows you to initialize a struct this way:
typedef struct Item {
int a;
float b;
char* name;
} Item;
int main(void) {
Item item = { 5, 2.2, "George" };
return 0;
}
An important thing to remember, at the moment you initialize even one object/ variable in the struct, all o...
SELECT INTO a table variable in T-SQL
Got a complex SELECT query, from which I would like to insert all rows into a table variable, but T-SQL doesn't allow it.
8...
sql primary key and index
Say I have an ID row (int) in a database set as the primary key. If I query off the ID often do I also need to index it? Or does it being a primary key mean it's already indexed?
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What does this thread join code mean?
...r the t1.join() call at all.
In terms of the try/catch, the join() throws InterruptedException meaning that the main thread that is calling join() may itself be interrupted by another thread.
while (true) {
Having the joins in a while loop is a strange pattern. Typically you would do the firs...
Why is pow(a, d, n) so much faster than a**d % n?
...hat is what pow does. The ** operator can't do this because it can't "see into the future" to know that you are going to immediately take the modulus.
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How to get the IP address of the server on which my C# application is running on?
...would change would be to change this:
if (ip.AddressFamily.ToString() == "InterNetwork")
to this:
if (ip.AddressFamily == AddressFamily.InterNetwork)
There is no need to ToString an enumeration for comparison.
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