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How to upload files to server using JSP/Servlet?
... default form enctype of application/x-www-form-urlencoded. The request.getParameter() and consorts would all return null when using multipart form data. This is where the well known Apache Commons FileUpload came into the picture.
Don't manually parse it!
You can in theory parse the request body ...
Send email using java
...{
}
/**
* Send email using GMail SMTP server.
*
* @param username GMail username
* @param password GMail password
* @param recipientEmail TO recipient
* @param title title of the message
* @param message message to be sent
* @throws AddressException i...
Ideal way to cancel an executing AsyncTask
...ng = false;
}
@Override
protected Void doInBackground(Void... params) {
while (running) {
// does the hard work
}
return null;
}
// ...
}
share
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...
How to set margin of ImageView using code, not xml
...
android.view.ViewGroup.MarginLayoutParams has a method setMargins(left, top, right, bottom). Direct subclasses are: FrameLayout.LayoutParams, LinearLayout.LayoutParams and RelativeLayout.LayoutParams.
Using e.g. LinearLayout:
LinearLayout.LayoutParams lp = n...
Jelly Bean DatePickerDialog — is there a way to cancel?
... that stores the listener that was passed in the constructor:
/**
* @param context The context the dialog is to run in.
* @param callBack How the parent is notified that the date is set.
* @param year The initial year of the dialog.
* @param monthOfYear The initial month of the dialog.
* @...
How do I pass extra arguments to a Python decorator?
...o return another function which is the actual decorator:
def my_decorator(param):
def actual_decorator(func):
print("Decorating function {}, with parameter {}".format(func.__name__, param))
return function_wrapper(func) # assume we defined a wrapper somewhere
return actual_...
Best way to allow plugins for a PHP application
...der;
/**
* connects an object/signal with a slot
*
* @param class|object $sender
* @param string $signal
* @param callable $slot
*/
public static function connect($sender, $signal, $slot) {
if (is_object($sender)) {
self::$connections[spl_o...
Rails: call another controller action from a controller
...wer, just what I was looking for. One question - what format would request parameters need to take here? I assume they live under controller_you_want.request but was unable to get this firing passing a hash or parameters instance.
– SRack
Nov 30 '17 at 12:01
...
How to implement a rule engine?
...eneric method)
public Func<User, bool> CompileRule(Rule r)
{
var paramUser = Expression.Parameter(typeof(User));
Expression expr = BuildExpr(r, paramUser);
// build a lambda function User->bool and compile it
return Expression.Lambda<Func<User, bool>>(expr, param...
PHP Sort Array By SubArray Value
...nction (works for PHP7 and higher because of spaceship operator):
/**
* @param array $array
* @param string $value
* @param bool $asc - ASC (true) or DESC (false) sorting
* @param bool $preserveKeys
* @return array
* */
function sortBySubValue($array, $value, $asc = true, $preserveKeys = fals...